Browse Topic: Metals

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Crash performance study on high-speed electric two wheeler battery enclosure2025-28-0203To be published on 02/07/2025
The growth rate of Electric Vehicles (EVs) industry and the annual production rate have increased significantly over the years. This is due to the development of rechargeable electrical energy storage system (battery pack), which is the main power source for EVs. Lithium-ion batteries (LIBs) pack is predominantly used across all major vehicle category such as 2 wheelers, 3 wheelers and light commercial vehicle. LIB is one of the high energy-dense sources of volume. However, LIBs have a challenge to poses a risk of short circuits and battery pack explosions, when expose to an external damage. Controlled crash analysis is performed for various velocities ranging from 40 kmph to 70 kmph against an obstruction directly and at an offset from the wheel, so as to mimic the real-world crash of high-speed two-wheelers. The behaviour of the battery enclosure is examined through evaluating the structural integrity of the battery enclosure used in a realistic two-wheeler after crash at various
Venkatesan Sr, Aiyappan, Nelson, N Rino, Hariharan Nair, Adarsh
Technical Paper
AI-Driven Optimization of Advanced Machining for Haste alloy by ANFIS Method2025-28-0141To be published on 02/07/2025
Electrochemical machining (ECM) is a highly efficient method for creating intricate structures in materials that conduct electricity, independent of their level of hardness. Due to the increasing demand for superior products and the necessity for quick design modifications, decision-making in the manufacturing sector has become progressively more difficult. This study primarily examines the use of Inconel 625 in vehicle applications and suggests creating regression models to predict performance parameters in ECM. The experiments are formulated based on Taguchi's ideas, and mathematical equations are derived using multiple regression models. The Taguchi approach is employed for single-objective optimization to ascertain the ideal combination of process parameters for optimizing the material removal rate. ANOVA is employed to evaluate the statistical significance of process parameters that impact performance indicators. The proposed regression models for Inconel 625 are more versatile
Natarajan, Manikandan, Pasupuleti, Thejasree, D, Palanisamy, Silambarasan, R, Krishnamachary, PC
Technical Paper
A hybrid algorithm for optimizing machining and spraying parameters in MQL-turning of Inconel 800H2025-28-0042To be published on 02/07/2025
Inconel 800H superalloy is a difficult-to-turn material. This study aims to achieve optimal machining results, including reduced cutting force, improved surface roughness, and minimized residual stress, by optimizing input machining parameters like cutting speed, feed rate, spraying angle, and nozzle distance on Inconel 800H. The Taguchi L27 method is utilized for experimentation, while the Harris hawks optimizer (HHO) is applied in a multi-objective optimization model. Additionally, the Technique for Order of Preference by Similarity to the Ideal Solution (TOPSIS) is used to identify the optimal input parameters. Five distinct weight schemes were employed, including the Analytic Hierarchy Process (AHP), the Entropy weight method, Criteria Importance through Inter-Criteria Correlation (CRITIC), Grey relational analysis (GRA), and Principal Component Analysis (PCA) to determine response weights. The analysis revealed that the primary factor affecting all measured weights is the feed
Kannan, Venkatesan, Mokshajna, Kotha
Technical Paper
Optimizing Titanium Alloy Grade 7 Machining with Grey Relational Analysis2025-28-0049To be published on 02/07/2025
Electrochemical machining (ECM) is a highly efficient method for creating intricate structures in materials that conduct electricity, irrespective of their level of hardness. Due to the growing need for superior products and the requirement for quick design adjustments, decision-making in production has become more complex. This study focuses on Titanium Grade 5 and suggests creating predictive models utilizing a Taguchi-grey technique to achieve multi-objective optimization in ECM. The trials are structured based on Taguchi's principles, utilizing Taguchi-grey relational analysis (GRA) to simultaneously maximize several performance indicators. This entails optimizing the pace at which material is removed, decreasing the roughness of the surface, and attaining precise geometric tolerances. ANOVA is used to assess the relevance of process variables that affect these measures. The suggested predictive technique for Titanium Grade 5 outperforms current models in terms of flexibility
Pasupuleti, Thejasree, Natarajan, Manikandan, Kumar, V, Sagaya Raj, Gnana, Krishnamachary, PC, Silambarasan, R
Technical Paper
Synthesis and characterisation of poly (aniline –co-chloroaniline) polymers and applications in automotive industries as paint coatings2025-28-0037To be published on 02/07/2025
Polyaniline (PANI)-polymer based paints have emerged as a promising solution for enhancing the durability and performance of automobile surface coatings. These paint coatings offer superior corrosion resistance, conductivity, and environmental stability, making it an ideal. Here novel copolymers of dodecylbenzenesulfonic acid aided poly (aniline-co-m-chloroaniline) nanocomposites of various compositions were prepared by oxidative method in micellar solution. The nanocomposites were analyzed by using UV-Vis and FT-IR spectroscopic methods. The crystalline nature of the polymer was evidenced through XRD patterns. SEM revealed the presence of particles with spherical morphology 100 nm in diameter. The electrical activity of the doped polymer was found to be content increasing from 3:1 to 3:3 x 10-2 S/cm to 5.64 x 10-7 S/cm with chloroaniline. These copolymers are added as additives in manufacturing of paint. These novel paints offer multiple protective mechanisms, including barrier
Pachanoor, Vijayanand, Moorthi, Bharathiraja
Technical Paper
Experimental Characterization of Fabricated (310) and (210) Symmetrical Tilt High-Angle Grain Boundaries in Bicrystalline Copper Thin Films Using NaCl Substrates2025-28-0034To be published on 02/07/2025
A novel sintering method of bridging the two mechanically polished and oriented single-crystals together face-to-face in a non-environmental controlled atmosphere to fabricate the bicrystal substrate of NaCl of macroscopic thickness, with a common zone axis and having planarity over large areas, has been developed. Epitaxial [001] bicrystalline thin face-centered cubic (fcc) metal film of surface-reactive metal-containing tilt grain boundary across the interface is first grown in high vacuum directly by flash deposition on initially fabricated [001] oriented bicrystalline substrate of NaCl. The [001] tilt boundary, thus produced, is examined by electron microscopy to characterize grain boundary morphology and structure. The findings of some preliminary investigations are then presented. A distinct atomic structure is observed for {310} and {210} inclination. Both HAADF-STEM and Diffraction images reveal that such fabricated high-angle grain boundary accommodates minor deviations from
Dish, Nilabh, Gautam, Abhay, Behera, Rakesh, Banka, Hemasunder, Chavan, Pradeep
Technical Paper
Effect of Hardening and Tempering Temperatures on the Mechanical Behavior of Alloy Steel2025-28-0027To be published on 02/07/2025
Alloy steel possesses high strength, hardenability, fatigue strength, and good impact toughness. It is widely used for making various machine parts, automobile components, shafts, gears, connecting rods, and more. Hardening and tempering develop the optimum combination of hardness, strength, and toughness in engineering steel, thereby providing components with high mechanical properties. Hardening and tempering temperatures are crucial factors that affect the mechanical and metallurgical properties of 42Cr4Mo steel. In this research work, 42Cr4Mo alloy steel samples were subjected to hardening and tempering processes. The hardening temperatures were set at 830°C, 850°C, and 870°C, while the tempering temperatures were maintained at 590°C and 650°C. The test results show that hardening at 830°C and tempering at 590°C achieve high strength, which decreases as the temperature increases. Different hardening temperatures and constant tempering temperatures will be optimized to achieve the
Murugesan, Venkatasudhahar, Ganesan, Dharmalingam, Tarigonda, Hariprasad
Technical Paper
Data-Driven Optimization of Titanium Grade 7 Machining for Automotive Applications2025-28-0143To be published on 02/07/2025
Electrochemical machining (ECM) is a highly efficient method for creating intricate structures in materials that conduct electricity, irrespective of their level of hardness. With the rising demand for superior products and the necessity for quick design modifications, decision-making in the industrial sector becomes increasingly complex. This study specifically examines Titanium Grade 5 and suggests creating prediction models through regression analysis to estimate performance measurements in ECM. The experiments are formulated based on Taguchi's ideas, utilizing a multiple regression approach to deduce mathematical equations. The Taguchi method is utilized for single-objective optimization in order to determine the ideal combination of process parameters that will maximize the material removal rate. ANOVA is a statistical method used to determine the relevance of process factors that affect performance measures. The suggested prediction technique for Titanium Grade 5 exhibits
Natarajan, Manikandan, Pasupuleti, Thejasree, Kumar, V, Krishnamachary, PC, Somsole, Lakshmi Narayana, Silambarasan, R
Technical Paper
Advanced Parameter Forecasting for Titanium Grade 19 Machining in Automotive Applications2025-28-0045To be published on 02/07/2025
Electrochemical machining (ECM) is a remarkably effective technique for producing detailed designs in materials that can conduct electricity, regardless of their level of hardness. As the desire for high-quality products and the necessity for rapid design changes grow, decision-making in the industrial sector becomes increasingly intricate. This work focuses on Titanium Grade 9 and proposes the development of prediction models using regression analysis to estimate performance measurements in ECM. The experiments are designed using Taguchi's methodology, employing a multiple regression approach to produce mathematical equations. The Taguchi technique is utilized for the purpose of single-objective optimization in order to determine the optimal combination of process parameters that will optimize the rate at which material is removed. ANOVA is a statistical method used to assess the relevance of process factors that impact performance indicators. The suggested prediction technique for
Pasupuleti, Thejasree, Natarajan, Manikandan, Ramesh Naik, Mude, Silambarasan, R, D, Palanisamy
Technical Paper
Smart Machining of Titanium Grade 7: ANFIS Application for Process Parameter Prediction2025-28-0160To be published on 02/07/2025
Electrochemical machining (ECM) is a highly efficient method for creating intricate structures in materials that conduct electricity, regardless of their level of hardness. Due to the growing demand for superior products and the necessity for quick design adjustments, decision-making in the manufacturing industry has grown increasingly intricate. This study specifically examines Titanium Grade 5 and suggests the creation of an Adaptive Neuro-Fuzzy Inference System (ANFIS) model for predictive modelling in ECM. The study employs a Taguchi-grey relational analysis (GRA) methodology to attain multi-objective optimization, with the goal of concurrently maximizing material removal rate, minimizing surface roughness, and achieving precise geometric tolerances. Analysis of variance (ANOVA) is used to assess the relevance of process characteristics that impact these performance measures. The ANFIS model presented for Titanium Grade 5 provides more flexibility, efficiency, and accuracy in
Natarajan, Manikandan, Pasupuleti, Thejasree, D, Palanisamy, Kiruthika, Jothi, Silambarasan, R
Technical Paper
Taguchi Based Grey Approach for Optimizing the Advanced Machining of Nickel Alloys in Manufacturing of Automotive Parts2025-28-0147To be published on 02/07/2025
The objective of this research is to develop an optimization technique for the Electrochemical Drilling process on Inconel 625 material, considering various performance factors. The Taguchi approach, along with Grey Relational Analysis (GRA), forms the basis for optimization. Inconel 625 has a wide range of uses in industries such as aerospace, nuclear, and marine, especially in harsh environments. The experimental trials conducted in accordance with Taguchi's approach have utilized three machining variables: feed rate, electrolyte flow rate, and electrolyte concentration. When doing this examination, we analyze not only the rate at which material is removed and the roughness of the surface, but also other characteristics that indicate performance, such as overcut, shape, and orientation tolerance. The analytical findings indicate that the feed rate is the primary factor that directly impacts the required performance standards. Regression models are constructed to make predictions, and
Natarajan, Manikandan, Pasupuleti, Thejasree, Sagaya Raj, Gnana, Silambarasan, R, Somsole, Lakshmi Narayana
Technical Paper
Performance Forecasting in Nickel Alloy Machining: A Study for Aerospace Engineering Applications2025-28-0154To be published on 02/07/2025
The process of electrochemical machining, often known as ECM, is capable of effectively shaping complicated structures in materials that conduct electricity, independent of the materials' level of hardness hence especially used for automobile and aerospace applications. As a result of the demand for high-quality products and the desire for rapid design changes, the manner in which decisions are made in the manufacturing industry has become increasingly contentious. With the assistance of regression analysis, this study proposes the development of predictive models for the purpose of forecasting the performance measures in electrochemical machining of Inconel 800HT. The trials are designed in accordance with Taguchi's principles, and a multiple regression model is utilized in order to derive the mathematical equations. Taguchi's method can be applied as a methodology for single objective optimization in order to attain the most optimal combination of process parameters for the purpose
Natarajan, Manikandan, Pasupuleti, Thejasree, Sagaya Raj, Gnana, Silambarasan, R, Kiruthika, Jothi
Technical Paper
Revolutionizing Titanium Alloy Machining: ANFIS Model for Advanced Machining Performance Optimization2025-28-0046To be published on 02/07/2025
Electrochemical machining (ECM) is a highly efficient method for creating intricate structures in electrically conductive materials, regardless of their hardness. Due to the growing demand for superior products and the necessity for quick design adjustments, decision-making in the manufacturing industry has become increasingly complex. This study specifically examines Titanium Grade 9 and suggests the creation of an Adaptive Neuro-Fuzzy Inference System (ANFIS) model for predictive modeling in ECM. The study employs a Taguchi-grey relational analysis (GRA) methodology to attain multi-objective optimization, with the goal of concurrently maximizing material removal rate, minimizing surface roughness, and achieving precise geometric tolerances. Analysis of variance (ANOVA) is used to assess the relevance of process characteristics that impact these performance measures. The ANFIS model presented for Titanium Grade 9 provides more flexibility, efficiency, and accuracy in comparison to
Pasupuleti, Thejasree, Natarajan, Manikandan, Raju, Dhanasekar, Kiruthika, Jothi, Katta, Lakshmi Narasimhamu, Silambarasan, R
Technical Paper
Evaluation on Mechanical and Metallurgical properties of Wire Arc Additive Manufactured ER 2209 Duplex Stainless Steel for Automotive and Marine applications2025-28-0108To be published on 02/07/2025
The advancement of wire-arc additive manufacturing (WAAM) presents a significant opportunity to revolutionize the production of automotive components through the fabrication of complex, high-performance structures. This study specifically investigates the metallurgical, mechanical, and corrosion properties of WAAM-fabricated ER2209 duplex stainless steel structures, known for their superior mechanical properties, excellent corrosion resistance, and favorable tribological behavior. The research aims to optimize WAAM process parameters to achieve high-quality deposition of ER2209, ensuring structural integrity and performance suitable for both marine and various automotive applications. Microstructural analysis of the produced samples revealed the alloy’s dual-phase nature, with roughly equal amounts of ferrite and austenite phases uniformly mixed across the layers of deposition. This balanced microstructure contributes to the alloy’s excellent mechanical properties. Yield strength
A, Aravind, S, Jerome, Kumar, Ravi
Technical Paper
Microstructural and Mechanical characterization of Overhanging AA 4043 structures fabricated by CMT Pulse based WAAM for Automotive applications2025-28-0140To be published on 02/07/2025
This study investigates the fabrication and characterization of overhanging structures using the Cold Metal Transfer (CMT) pulse based Wire Arc Additive Manufacturing (WAAM) technique, specifically targeting automotive applications on commercial aluminum components. Focusing on optimal welding strategies for overhanging structures, components are fabricated by providing offsets during consecutive deposition of layers, thus producing parts with angles of 45, 60 and 90 degree inclinations from the substrate. Three specimens undergo twenty-three layers of deposition, resulting in structurally sound joints within this specified angle range. AA 4043 electrode is utilized, and welding parameters are optimized through trials by verifying with bead on plate deposition. Successful outcomes are achieved within the specified angle range, though challenges arise beyond 60 degrees, complicating the maintenance of desired weld quality. The study further evaluates the microstructure, microhardness
A, Aravind, S, Jerome, A, Rahavendran
Technical Paper
Grey Relational Analysis for Multi-Objective Optimization in Aerospace Machining of Titanium Grade 192025-28-0047To be published on 02/07/2025
Electrochemical machining (ECM) is a highly efficient method for creating intricate structures in electrically conductive materials, irrespective of their hardness. Due to the growing need for superior products and quick design adjustments, decision-making in production has become increasingly complex. This study focuses on Titanium Grade 9 and proposes creating predictive models using a Taguchi-grey technique to achieve multi-objective optimization in ECM. The experiments are structured based on Taguchi's principles, utilizing Taguchi-grey relational analysis (GRA) to simultaneously optimize several performance indicators, including the material removal rate, surface roughness, and geometric tolerances. ANOVA is employed to assess the significance of process variables affecting these measures. The proposed predictive technique for Titanium Grade 9 outperforms current models in terms of flexibility, efficiency, and accuracy, providing enhanced capabilities for monitoring and control
Pasupuleti, Thejasree, Natarajan, Manikandan, Krishnamachary, PC, Katta, Lakshmi Narasimhamu, Silambarasan, R
Technical Paper
Optimization of Wire Electrical Discharge Machining Parameters for Invar 36 Material Using Regression Modeling2025-28-0122To be published on 02/07/2025
Wire Electrical Discharge Machining (WEDM) is a commonly employed technique for shaping conductive materials such as SAE 1010 steel, providing highly accurate machining capabilities. This low-carbon steel has excellent formability, weldability, and machinability, making it useful in many contexts including bolts, nuts, valves and cold headed fasteners. The objective of this study is to improve the efficiency and precision of the Wire Electrical Discharge Machining (WEDM) process for SAE 1010 material. This will be achieved by creating a predictive model using an Adaptive Neuro-Fuzzy Inference System (ANFIS). The study investigates the influence of WEDM parameters, specifically pulse-on time, pulse-off time, and discharge current, on important machining outcomes such as surface roughness (Ra), material removal rate (MRR). The experimentation has been planned and conduced as per Taguchi L9 orthogonal array design. The ANFIS predictive model is constructed by utilizing the obtained
Pasupuleti, Thejasree, Natarajan, Manikandan, Raju, Dhanasekar, Krishnamachary, PC, Silambarasan, R
Technical Paper
Structural Effect based Parametric Investigations on Lightweight Materials for Propulsive System of Unmanned Airship through Fluid Structural Interaction Approach2025-28-0167To be published on 02/07/2025
This work proposes using an airship outfitted with four weather stations that can be quickly deployed from an inflatable platform to conduct comprehensive environmental research on Titan. To navigate Titan's rivers, the weather stations are installed on inflatable platforms. Each station has a storage device that may record and send data collected by the aerobot as it travels across the area. The aerobot is inflated just before landing so that it doesn't crash into the rivers of Titan. The proposed unmanned airship will operate in Titan's atmosphere and atmospheric conditions, so this study is primarily concerned with their design and the computational analysis of structural effects and fluid dynamics. One of the most effective vehicles for extraterrestrial research was the method offered to employ unmanned lighter-than-air systems (aerobot) for planetary exploration. The titan aerobot has been built with a co-axial 4-blade propeller to generate thrust in cruise mode, horizontal and
Baskar, Sundhar, Vinayagam, Gopinath, Pisharam, Akhila Ajith, Gnanasekaran, Raj Kumar, Raji, Arul Prakash, Stanislaus Arputharaj, Beena, L, Natrayan, Ganesan, Balaji, Raja, Vijayanandh
Technical Paper
Preparation and Evaluation of lubricating properties of Neem seed oil under the influence of an Anti-wear additive as Sustainable alternative to commercial Engine oil2025-28-0116To be published on 02/07/2025
The search for environmentally friendly and sustainable lubricants for automotive and industrial applications has led to extensive research on bio lubricants as a viable alternative to conventional engine oils and mineral oils. The biodegradable and ecofriendly nature of vegetable oil, makes it an excellent replacement for the depleting mineral oils. Still, a good number of modifications must be brought in, to overcome the drawbacks of vegetable oils. In this work, the preparation and evaluation of lubricating properties like tribological, rheological, thermal etc. of neem seed oil with and without additives were carried out and effectively compared with the lubricating properties of synthetic oil, Poly alpha olefin 6 (PAO6) and with a commercial engine oil, SAE20W40. The copper oxide nano particles were dispersed in neem seed oil as additive in various proportions (0.1, 0.2, 0.3 and 0.4 wt.%) to enhance the tribological properties. The tribological analysis were carried out to
Menon, Krishnaprasad S, R, Ambigai
Technical Paper
Porosity Effect on the Scratch Tests of Austenitic Stainless Steel (AISI 316L2024-36-011212/20/2024
Austenitic stainless steel (AISI 316L) is highly valued in various industries for its properties, especially related to wear and corrosion resistances. There are several applications of austenitic stainless steel in the automotive industry. This study investigates the effects of porosity of SS316L samples fabricated using powder metallurgy (uniaxial pressure). Two different compaction pressures, 300 MPa, and 600 MPa, were applied to analyze their influence on the material’s density, porosity, microstructure, hardness, and abrasion responses. The SS316L samples were sintered at 1120 °C for 30 min. The microstructural analysis revealed that the sample pressed at 600 MPa exhibited higher density and lower porosity (18.9%) compared to the sample pressed at 300 MPa (29.2%). This increased compaction pressure led to a more uniform microstructure with smaller grain sizes and a more consistent distribution of circular pores. Consequently, the hardness of the 600 MPa sample was significantly
Tahanzadeh, Samira, Seriacopi, Vanessa, Rodrigues, Daniel, Machado, Izabel Fernanda
Technical Paper
Laser Welding Applied to Complex Phase Steel2024-36-015912/20/2024
The development of advanced high-strength steels has become essential in the production of lightweight, safe, and more economical vehicles within the context of the automotive industry. Among the advanced high-strength steels, complex phase steels stand out, characterized by their high formability and high energy absorption and deformation capacity. Laser welding is a technique that applies laser using high energy density as a heat source. It has the advantages that the high welding speed and low heat input compared to other welding methods cause a decrease in deformation, and the narrow width of the weld bead and heat-affected zone allows for the welding of complex parts that would be difficult for other welding methods. Based on a study of a complex phase steel, an analysis was made of the microstructures observed by optical microscopy, the grain boundaries and certain phases contained in this microstructure, as well as the microstructures of each area in the laser welding region
Dias, Erica Ximenes, Reis de Faria Neto, Antonio, Castro, Thais Santos, Martins, Marcelo Sampaio, Santos Pereira, Marcelo
Technical Paper
Presentation of Biocomposites for Proposal for Use in Car Bumpers2024-36-014812/20/2024
Car bumpers are protective structures for the occupants of a vehicle during a collision, absorbing impact energy, such a structure is located at the front and rear of the vehicle. Metals were used to manufacture the first bumpers, and it was subsequently assessed that using a different material would reduce their weight, for example plastic, resulting in increased fuel economy and impact absorption. Also, the use of polymers reinforced by glass fibers offer good mechanical strength. This work evaluates the replacement of conventional materials by an ecologically more viable alternative, natural fibers as plastic reinforcement, reducing costs, without considerable loss in the material mechanical properties. Specimens of reinforced composite material were produced with jute fiber. The fibers, obtained through fabrics, were standardized in length of 5.0 mm and 15.0 mm. The matrix phase applied was the unsaturated and pre-accelerated terephthalic polyester resin manufactured by Royal
Soares, Rafael Vilhena, Dias, Roberto Yuri Costa, de Mendonca Maia, Pedro Victor, Junior, Waldomiro Gomes Paschoal, Fujiyama, Roberto Tetsuo
Technical Paper
Steel, Sheet, Strip, and Plate, 0.95Cr - 0.20Mo (0.28 - 0.33C) (SAE 4130), Aircraft Quality, SpheroidizedAMS6351M (Current)12/18/2024
This specification covers an aircraft-quality, low-alloy steel in the form of sheet, strip, and plate
AMS E Carbon and Low Alloy Steels Committee
Material Specification
Steel, Bars, and Forgings, Aircraft Quality, 0.50Cr - 0.55Ni - 0.25Mo (0.38 - 0.43C) (SAE 8740), Heat Treated, 105 ksi (724 MPa) Tensile StrengthAMS6325M (Current)12/18/2024
This specification covers an aircraft-quality, low-alloy steel in the form of heat-treated bars and forgings
AMS E Carbon and Low Alloy Steels Committee
Material Specification
Steel Bars, 1.0Cr - 0.20Mo - 0.45Se (0.39 - 0.48C) (4142H Modified), Die-Drawn, 130 ksi (896 MPa) Yield Strength, Free MachiningAMS6378J (Current)12/18/2024
This specification covers a free-machining, low-alloy steel in the form of round bars 3.50 inches (88.9 mm) and under in nominal diameter produced by a die-drawing process
AMS E Carbon and Low Alloy Steels Committee
Material Specification
Iron-Nickel Alloy, Corrosion- and Heat-Resistant, Sheet, Strip, and Plate, 44Fe - 18.5Cr - 35Ni - 1.15Si (Alloy 330), Solution Heat TreatedAMS5592H (Current)12/18/2024
This specification covers a corrosion- and heat-resistant iron-nickel alloy in the form of sheet, strip, and plate
AMS F Corrosion and Heat Resistant Alloys Committee
Material Specification
Steel Sheet, Strip, and Plate, 0.95Cr - 0.20Mo (0.28 - 0.33C) (SAE 4130), Aircraft QualityAMS6350R (Current)12/18/2024
This specification covers an aircraft-quality, low-alloy steel in the form of sheet, strip, and plate
AMS E Carbon and Low Alloy Steels Committee
Material Specification
Steel Bars, Forgings, Tubing, and Forging Stock, 1.0Cr - 3.25Ni - 0.40Mo (0.17 - 0.22C), Electroslag Remelted or Consumable Electrode Vacuum Remelted, Premium Aircraft QualityAMS6493C (Current)12/18/2024
This specification covers a premium aircraft-quality, low-alloy steel in the form of bars, forgings, mechanical tubing, and forging stock
AMS E Carbon and Low Alloy Steels Committee
Material Specification
INSERT, SCREW THREAD, NON-LOCKING, LOCKED IN, KEY LOCKED, HEAVY-DUTY, SELF-BROACHING KEYS, UNS S66286AS3572B (Current)12/18/2024
SCOPE IS UNAVAILABLE
E-25 General Standards for Aerospace and Propulsion Systems
Technical Standard
Aluminum Alloy, Alclad Sheet, 6.2Zn - 2.3Cu - 2.2Mg - 0.12Zr (Alclad 7050-T76), Solution Heat Treated and OveragedAMS4243D (Current)12/18/2024
This specification covers an aluminum alloy in the form of alclad sheet 0.040 to 0.187 inch (1.02 to 4.75 mm), inclusive, in nominal thickness (see 8.6
AMS D Nonferrous Alloys Committee
Material Specification
Molybdenum Disulfide Coating, Thin Lubricating Film, Impingement AppliedAMS2526E (Current)12/18/2024
This specification covers requirements for a coating consisting of finely powdered molybdenum disulfide in a heat resistant inorganic binder applied to parts
AMS B Finishes Processes and Fluids Committee
Material Specification
Automated Gaseous Nitriding Controlled by Nitriding PotentialAMS2759/10D (Current)12/18/2024
This document specifies the procedure and requirements for nitriding steel parts in a process automatically controlled by the nitriding potential (see 2.3.6
AMS B Finishes Processes and Fluids Committee
Material Specification
Steel, Sheet and Strip, 0.25 Carbon, Maximum (SAE 1020), Hard TemperAMS5045L (Current)12/18/2024
This specification covers a carbon steel in the form of sheet and strip
AMS E Carbon and Low Alloy Steels Committee
Material Specification
Nickel Alloy, Corrosion- and Heat-Resistant, Sheet, Strip, Plate and Foil, 48Ni - 20Cr - 20Co - 5.9Mo - 2.2Ti - 0.45Al (Alloy 263), Consumable Electrode Remelted or Vacuum Induction Melted, Solution Heat TreatedAMS5872G (Historical)12/18/2024
This specification covers a corrosion- and heat-resistant nickel alloy in the form of sheet, strip, and plate
AMS F Corrosion and Heat Resistant Alloys Committee
Material Specification
Steel, Corrosion-Resistant, Sheet, Strip, and Plate, 19Cr - 9.5Ni (304L), Solution Heat TreatedAMS5511L (Current)12/12/2024
This specification covers a corrosion-resistant steel in the form of sheet, strip, and plate over 0.005 inch (0.13 mm) in nominal thickness
AMS F Corrosion and Heat Resistant Alloys Committee
Material Specification
Design and Experimental Research on Composite Bottom Guard Plate for Power Battery Bottom Ball Impact Protection15-18-02-000712/11/2024
Safety concerns surrounding new energy vehicles have gained increasing national and social attention. Bottom impacts to power batteries are a leading cause of fires and explosions in new energy vehicles. Focusing on the safety of power battery bottom impacts, this article first proposes applying honeycomb panels to the battery’s bottom guard plate. Through the ball impact test, the effect of honeycomb panel surface material thickness on bottom protection is studied, and the mechanism of the honeycomb panel’s ball impact protection is explored. Second, the honeycomb panel and the aluminum alloy plate are structurally compounded to improve the ball impact protection ability. Finally, the optimized composite bottom guard plate is assembled on the lower box of the power battery, and the whole package ball impact experiment is successfully verified. This study serves as a reference for future research on power battery bottom impact protection and the industrial application of bottom guard
Hongguang, Huang, Yong, Zeng, Weiquan, Zeng
Journal Article
Aluminum Alloy, Sheet and Plate, 4.4Cu - 1.5Mg - 0.60Mn; (2024-T81 Sheet, -T851 Plate), Solution Heat Treated, Cold Worked and Artificially AgedAMS4268B (Current)12/10/2024
This specification covers an aluminum alloy in the form of sheet and plate 0.010 to 1.500 inches (0.254 to 38.07 mm), inclusive, in thickness, supplied in the -T81/-T851 temper (see 8.5
AMS D Nonferrous Alloys Committee
Material Specification
Titanium Alloy, Bars, Wire, Forgings, Rings, and Drawn Shapes, 4Al - 2.5V -1.5 Fe, Annealed, Heat TreatableAMS6947C (Current)12/10/2024
This specification covers a titanium alloy in the form of bars, wire, forgings, flash-welded rings, and drawn shapes 4.000 inches (101.60 mm) and under and stock for forging, heading, or flash-welded rings of any size (see 8.6
AMS G Titanium and Refractory Metals Committee
Material Specification
Beryllium Near-Net Preforms, Standard Grade, Cold Isostatic Pressed, SinteredAMS7910E (Current)12/10/2024
This specification covers beryllium in the form of bar, rod, tubing, and shapes fabricated from impact-ground beryllium powder consolidated by cold isostatic pressing (CIP) and sintering
AMS G Titanium and Refractory Metals Committee
Material Specification
Aluminum Alloy, Plate (7065-T7451), 7.7Zn - 2.1Cu - 1.65Mg - 0.10Zr, Solution Heat Treated, Stress-Relieved, and OveragedAMS4361B (Current)12/10/2024
This specification covers an aluminum alloy in the form of plate
AMS D Nonferrous Alloys Committee
Material Specification
Aluminum Alloy, Plate (7065-T7651), 7.7Zn - 2.1Cu - 1.65Mg - 0.10Zr, Solution Heat Treated, Stress-Relieved, and OveragedAMS4351B (Current)12/10/2024
This specification covers an aluminum alloy in the form of plate
AMS D Nonferrous Alloys Committee
Material Specification
Aluminum Alloy, Extruded Profiles (2043-T85), 2.8Cu - 1.65Li - 0.35Mg - 0.1Zr, Solution Heat Treated, Stress Relieved by Stretching, and AgedAMS4450A (Current)12/10/2024
This specification covers an aluminum alloy in the form of extruded rods, bars, and profiles (shapes) produced with thicknesses 0.040 to 2.500 inches (1.02 to 38.10 mm), inclusive, having a maximum cross-sectional area of 23 square inches (15000 mm2) and a maximum circumscribing circle diameter (circle size) of 16 inches (406 mm) (see 2.4.1 and 8.7
AMS D Nonferrous Alloys Committee
Material Specification
Steel, Sheet, Strip, and Plate, 0.95Cr - 0.20Mo (0.28 - 0.33C) (SAE 4130), Aircraft Quality, Normalized or Otherwise Heat TreatedAMS6345F (Current)12/10/2024
This specification covers an aircraft-quality, low-alloy steel in the form of sheet, strip, and plate up to and including 1.500 inches (38.10 mm) in thickness
AMS E Carbon and Low Alloy Steels Committee
Material Specification
Titanium Alloy Sheet, Strip, and Plate, 6Al - 4V, Solution Heat TreatedAMS4903E (Current)12/10/2024
This specification covers a titanium alloy in the form of sheet, strip, and plate up through 2.000 inches (50.80 mm), inclusive (see 8.6
AMS G Titanium and Refractory Metals Committee
Material Specification
Aluminum Alloy, Extrusions, 5.6Zn - 2.5Mg - 1.6Cu - 0.23Cr (7075-T73, 7075-T73511, 7075-T73510), Solution Heat Treated, Stress Relieved by Stretching when required, and OveragedAMS4617B (Current)12/10/2024
This specification covers an aluminum alloy in the form of extruded bars, rods, wire, shapes, and tubing 0.040 to 4.499 inches (1.01 to 114.27 mm), inclusive, in nominal diameter or least thickness and with areas up to 32 square inches (206 cm2), inclusive (see 8.6
AMS D Nonferrous Alloys Committee
Material Specification
Titanium Alloy Bars, Wire, Forgings, Rings, and Drawn Shapes, 4Al - 2.5V -1.5 Fe, AnnealedAMS6948C (Current)12/10/2024
This specification covers a titanium alloy in the form of bars, wire, forgings, flash-welded rings, drawn shapes 5.000 inches (127.00 mm) and under, and stock for forging or flash-welded rings of any size (see 8.6
AMS G Titanium and Refractory Metals Committee
Material Specification
Beryllium Bars, Rods, Tubing, and Shapes, Instrument GradeAMS7907E (Current)12/10/2024
This specification covers beryllium in the form of bars, rods, tubing, and machined shapes fabricated from vacuum hot pressed powder
AMS G Titanium and Refractory Metals Committee
Material Specification
Chemical Check Analysis Limits, Titanium and Titanium AlloysAMS2249K (Current)12/10/2024
This specification defines limits of variation for determining acceptability of the composition of cast or wrought titanium and titanium alloy parts and material acquired from a producer
AMS G Titanium and Refractory Metals Committee
Material Specification
Tolerances, Low-Alloy Steel BarsAMS2251K (Current)12/10/2024
This specification covers established manufacturing tolerances applicable to low-alloy steel bars ordered to inch/pound dimensions. These tolerances apply to all conditions, unless otherwise noted. The term “exclusive” is used to apply only to the higher figure of the specified range
AMS E Carbon and Low Alloy Steels Committee
Material Specification
Aluminum Alloy, Plate, 7.9Zn - 1.8Cu - 2.0Mg - 0.10Zr (7099-T7451), Solution Heat Treated, Stress Relieved, and OveragedAMS4354B (Current)12/10/2024
This specification covers an aluminum alloy in the form of plate from 1.000 to 6.000 inches (25.40 to 152.40 mm) in thickness (see 8.6
AMS D Nonferrous Alloys Committee
Material Specification
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