Browse Topic: Finishing

Items (1,408)

Effect of Silicon Carbide Addition and Jute Fiber Surface Treatment on Functional Qualities of Low-Density Polyethylene Composites

2024-01-5238

12/10/2024

In the modern era, advanced hybrid polymer-based composites have the potential to replace conventional polymers and exhibit unique behaviour. This study focuses on low-density polyethylene (LDPE) hybrid composite made with jute fiber and enhanced with nano silicon carbide particles through the injection moulding process. The natural jute fiber undergoes chemical surface treatment to improve its adhesive behaviour. The study evaluates the effects of 10wt% chemically treated jute fiber and 1, 3, and 5wt% of SiC on the structural, impact, tensile, and flexural strength of the synthesized composites according to ASTM D7565, D3039, and D790 standards. The structural behaviour of LDPE composites is assessed through X-ray diffraction analysis, revealing improved crystalline structure and interaction. Among the five prepared composite samples, the composite containing 10wt% treated jute fiber and 5wt% SiC demonstrated enhanced impact, tensile, and flexural strength of 5.7 J/mm2, 43 MPa, and 56

Venkatesh, R., Kaliyaperumal, Gopal, Manivannan, S., Karthikeyan, S., Aravindan, N., Mohanavel, Vinayagam, Soudagar, Manzoore Elahi Mohammad, Karthikeyan, N.

INCREASING POWER DENSITY BY ADVANCED MANUFACTURING, MATERIALS, AND SURFACE TREATMENTS

2024-01-3595

11/15/2024

ABSTRACT Track vehicle Final Drive torque transferring capacity is constrained by the availability of packaging space, weight constraints, and material / heat treat properties. These constraints create a paradigm where as the increase in load due to weight growth is inversely related to life due to fatigue. Funded under Phase II SBIR contract W56HZV-13-C-0056, Loc Performance Products, Inc. (Loc) developed manufacturing processes aligned to key selected materials and surface treatments to break through this paradigm. The results of the SBIR efforts produced an optimized Final Drive design that addressed the increasing Gross Vehicle Weight (GVW) of the Bradley Fighting Vehicle while maintaining the current Final Drive packaging space, reducing lifecycle cost and maximizing performance in terms of power density and extending the life of the product

Militello, Anthony, Fowlkes, Edward

Modern Tools for Tribological Optimization of EV Transmissions and e-Axles

2024-24-0013

09/18/2024

EV motors and transmissions operate at high speeds and handle high power densities, placing heavy demands on bearings, seals, and gears. TEHD and meshless CFD simulations open new ways to the design and optimization of lubrication and thermal management solutions for EV transmissions and e-axles. Properly parametrized CAE models can provide valuable insights into the effects of different lubricant properties on cooling and lubrication efficiencies, thereby helping in matching the lubricant and hardware characteristics for optimal performance. In the present communication, we demonstrate the effects of different lubricants and surface finishing technologies on the tribology of high-speed gears using tribological tests and simulations. Important roles of lubricity additives and surface finish optimization are highlighted in conjunction with a move towards ultralow viscosity fluids

Zhmud, Boris, Merelli, Michele

Optimization of a Sliding Rotary Vane Pump for Heavy Duty Internal Combustion Engine Cooling

2024-37-0030

06/12/2024

The benefits introduced by the replacement of conventional centrifugal pumps with volumetric machines for Internal Combustion Engines (ICEs) cooling were experimentally and theoretically proven in literature. Sliding Rotary Vane Pumps (SVRPs) ensure to achieve an interesting reduction of ICEs fuel consumption and CO2 emissions. Despite volumetric pumps are a reference technology for ICE lubrication oil circuits, the application in ICE cooling systems still not represent a ready-to-market solution. Particularly challenging is the case of Heavy-Duty ICEs due to the wide operating range the pump covers in terms of flow rate delivered and pressure rise. Generally, SVRPs are designed to operate at high speeds to reduce machine dimensions and, consequently, the weight. Nevertheless, speed increase could lead to a severe penalization of pump performance since the growth of the friction losses. They produce wear phenomena which require expensive surface treatments or, more generally, the

Fatigati, Fabio, Di Bartolomeo, Marco, Pallante, Francesco, Lo Biundo lng, Giuseppe, Cipollone, Roberto

The Hybrid Friction Surfacing Deposition Assisted Arc Welding (FsaAW) Approach for Dissimilar Steel/Al Joining of Automobile Structure

2024-01-2072

04/09/2024

A multi-material design strategy of steel and aluminium alloy is a key solution in response to stringent emission requirements and to offset the additional weight of batteries in electric vehicles. However, dissimilar Al/steel welding is mainly challenging due to the formation of brittle and hard intermetallic compounds (IMC). In order to resolve the issue of IMC formation, the present study proposed an alternative manufacturing method consisting of friction surfacing deposition and arc welding. The proposed method involves two steps for dissimilar welding: step 1, friction surfacing deposition of aluminium alloy on the steel surface and step 2, arc welding of friction surfacing deposited steel and aluminium alloy. Auxiliary friction surfacing deposition acts as a preliminary bonding and avoids the direct contact between steel and aluminium alloy during arc welding, which eludes the IMC formation at the interface. 3.15 mm thick E46 steel and 3 mm AA6061-T6 were selected as base metals

Chudasama, Gautam, Kalyankar, Vivek, Chauhan, Shiv

Characterizing Galling Conditions in Sheet Metal Stamping

2024-01-2856

04/09/2024

Multiple experimental studies were performed on galling intiation for variety of tooling materials, coatings and surface treatments, sheet materials with various surface textures and lubrication. Majority of studies were performed for small number of samples in laboratory conditions. In this paper, the methodology of screening experiment using different combinations of tooling configurations and sheet material in the lab followed by the high volume small scale U-bend performed in the progressive die on the mechanical press is discussed. The experimental study was performed to understand the effect of the interface between the sheet metal and the die surface on sheet metal flow during stamping operations. Aluminum sheet AA5754 2.5mm thick was used in this experimentation. The sheet was tested in laboratory conditions by pulling between two flat insert with controllable clamping force and through the drawbead system with variable radii of the female bead. Comparing pulling forces during

Reinberg, Natalia, Murray, Ryan, Ascencio Barrera, Sindi, Pineda Carranza, Cristina, Golovashchenko, Sergey

Elevating Workpiece Handling During Plasma Surface Treatment Process

TBMG-49203

10/01/2023

At nearly every trade show where Beckhoff Automation presents the XPlanar system, attendees stop in their tracks to watch. They comment on how exciting and interesting the magnetically levitating and flying movers are. And then they ask, “What can you actually do with it

Structure and properties of a nano-carbon composite surface coating for roll-to-roll manufacturing of titanium fuel cell bipolar plates

2023-32-0138

09/29/2023

In the 1st generation Toyota "MIRAI" fuel cell stack, carbon protective surface coating is deposited after individual Ti bipolar plate being press-formed into the desired shape. Such a process has relatively low production speed, not ideal for large scale manufacturing. A new coating concept, consisting of a nanostructured composite layer of titanium oxide and carbon particles, was devised to enable the incorporation of both the surface treatment and the press processes into the roll-to-roll production line. The initial coating showed higher than expected contact resistance, of which the root cause was identified as nitrogen contamination during the annealing step that inhibited the formation of the composite film structure. Upon the implementation of a vacuum furnace chamber as the countermeasure, the issue was resolved, and the improved coating could meet all the requirements of productivity, conductivity, and durability for use in the newer generation of fuel cell stacks

YAMASAKI, Takenori, IKEDA, Kotaro, SATO, Toshiki

Low-Adhesion Surface Evaluation on an Airfoil in the NRC AIWT

2023-01-1447

06/15/2023

The performance of low-adhesion surfaces in a realistic, in-flight icing environment with supercooled liquid droplets is evaluated using a NACA 0018 airfoil in the National Research Council of Canada Altitude Icing Wind Tunnel. This project was completed in collaboration with McGill University, the University of Toronto and the NRC Aerospace Manufacturing Technologies Centre in March 2022. Each collaborator used significantly different methods to produce low-adhesion surface treatments. The goal of the research program was to demonstrate if the low-adhesion surfaces reduced the energy required to de-ice or anti-ice an airfoil in an in-flight icing environment. Each collaborator had been developing their own low-adhesion surfaces, using bench tests in cold rooms and a spin rig in the wind tunnel to evaluate their performance. The most promising surface treatments were selected for testing on the airfoil. The de-icing and anti-icing performance of the low-adhesion surfaces was compared

Clark, Catherine, Kietzig, Anne-Marie, Golovin, Kevin, Song, Naiheng

Passive Ice Protection Systems Lab Scale Testing Methodology

2023-01-1412

06/15/2023

Aircraft icing is a well-known problem that can have serious consequences for flight safety. To combat this problem, various ice protection systems (IPSs) have been developed and are currently used on most aircraft, including thermal ice protection systems. However, these systems can be costly, heavy and ineffective. Therefore, there is a need to improve the efficiency and response time of these systems. In recent years, research has focused on the development of hybrid systems that combine different ice protection technologies to achieve better performance. In this sense, the use of an active element with a coating on its external part that improve its efficiency would be an important advance, but there is a wide range of active systems and even more of coatings and surface treatments. Therefore it would be helpful to have a test methodology that would allow a simple but thorough assessment of the performance of each passive system, and this is precisely what is proposed in this

García, Paloma, Mora, Julio, Carreño, Francisco, Redondo, Francisco, Rodriguez, Rafael, Rivero, Pedro, Vicente, Adrian, Acosta, Carolina, Larumbe, Silvia, Medrano, Ángel, Lecumberri, Cristina

A Study on Automotive Sheetmetal Surface Pretreatment: Liquid Activation and Low Temperature Phosphating

2023-28-1324

05/25/2023

Phosphating is the most preferred surface treatment process used for auto body sheet panel before painting due to its low-cost, easy production process, good corrosion resistance, and excellent adhesion with subsequent paint layer. There are different phosphating processes used for ferrous metal like zinc phosphating, iron phosphating, di-cationic & tri-cationic phosphating, etc. Among these phosphate coatings, the best corrosion resistance and surface adhesion are achieved by tri-cationic phosphate coatings (zinc-nickel-manganese phosphate). Many new technologies of phosphating are evolving. Key drivers for this evolution are increasing demand for higher corrosion resistance, multi-metal car body processing in same phosphating bath and sustainability initiatives to reduce the carbon footprints. We have evaluated two of these recent technologies. First technology being evaluated is low temperature phosphating in which phosphate bath temperature is reduced by 10°C and second is liquid

Balasubramanian, Jayanthan, Kumar, Vinay, Kirubakaran, Muthiah, Lalwani, Rahul

Plating, Brush, Zinc-Nickel Low Hydrogen Embrittlement

AMS2451/9C (Current)05/24/2023

This specification covers the requirements for brush plating of zinc-nickel by electrodeposition

AMS B Finishes Processes and Fluids Committee

Brazing, Silver, for Small Pressurized Fittings

AMS2667H (Current)

05/24/2023

This specification covers requirements for producing brazed joints in parts fabricated from corrosion- and heat-resistant steels, carbon or low-alloy steels, or copper alloys, and the properties of such joints

AMS B Finishes Processes and Fluids Committee

Pressure Testing, Gaseous Media Pressure as Specified

AMS2610 (Current)

05/24/2023

This specification provides requirements and procedures for gas-pressure leak testing of parts

null, null

Pressure Testing, Hydraulic Pressure as Specified

AMS2615G (Current)

05/17/2023

This specification provides requirements and procedures for hydraulic-pressure leak testing of parts

AMS B Finishes Processes and Fluids Committee

Steel, Corrosion Resistant, Tubing 19Cr - 10Ni High-Pressure Hydraulic, Welded Plus Ultrasonically Tested or Seamless Cold Drawn, One Eighth - Hard Temper

AMS5564D (Current)

05/10/2023

This specification covers a corrosion-resistant steel in the form of welded and drawn or seamless and drawn tubing

AMS F Corrosion and Heat Resistant Alloys Committee

RING, RETAINING, EXTERNAL, INTERLOCKING

AS90708C (Current)

03/20/2023

E-25 General Standards for Aerospace and Propulsion Systems

Research on Surface Treatment Coating on Titanium Alloy Based on Laser Cladding Technology

2023-01-0980

03/07/2023

This paper will illustrate the surface treatment coating that forms a strong metallurgical bond between the titanium alloy matrix regarding the high friction properties and challenging lubricating of titanium alloys. In this research, TC4 has been selected as a base material instead of TiC. Then Ni-composite coating was employed as the surface treatment of TC4 by laser cladding (LC) process. The Ni-based alloy coating material powder is good self-fluxing, has high-temperature resistance, and is analytically pure with 200 mesh. The chemical properties of Ni composite coating include 31.2 % Chromium, 8%Titenium, and 3.6% Carbon. Overall characterization and microstructure analysis of the prepared coating utilizing OM, XRD, SEM, EDS, and EPMA with different laser-specific energies (LSP) performance impact. It is evident that an excellent coating can be employed at the LSP of about 12.5kJ/cm2. The TiC ceramic particle reinforced phase is dispersed into a two-phase solid solution of β-Ti

Miah, Md Helal, Chand, Dharmahinder Singh, Malhi, Gurmail Singh, Khan, Shahrukh, al Muin, Abdullah

NUT, FITTING, PORT

AS5179D (Current)

02/20/2023

G-3, Aerospace Couplings, Fittings, Hose, Tubing Assemblies

NUT, FITTING, BULKHEAD

AS5178E (Current)

02/20/2023

G-3, Aerospace Couplings, Fittings, Hose, Tubing Assemblies

Chemical Check Analysis Limits Wrought Low-Alloy and Carbon Steels

AMS2259G (Current)

01/17/2023

This specification defines limits of variation for determining acceptability of the composition of wrought low-alloy and carbon steel parts and material acquired from a producer

AMS E Carbon and Low Alloy Steels Committee

Electron Beam-Powder Bed Fusion (EB-PBF) Produced Preforms and Parts Titanium Alloy, 6Al - 4V Hot Isostatically Pressed

AMS7011 (Current)

11/22/2022

This specification covers a titanium alloy in the form of preforms and parts produced by electron beam-powder bed fusion (EB-PBF) that are subjected to post-deposition hot isostatic press (HIP). Preforms may require subsequent machining or surface finishing to meet requirements for their intended final part application

AMS AM Additive Manufacturing Metals

Identification Marking Methods

AS478S (Current)

11/02/2022

This standard provides the following: a Definition of terms pertaining to marking. b Symbols for marking location. c Requirements and restrictions for permanent markings. d Types of marking methods. e Rules for designating marking methods. f Table listing marking methods

E-25 General Standards for Aerospace and Propulsion Systems

Alternatives to Cadmium Plating

AIR5919B (Current)

10/13/2022

This SAE Aerospace Information Report (AIR) is intended to document and provide access to information obtained by an industry survey. It summarizes and documents data regarding possible alternatives to the use of cadmium plating on general connectors and connector accessories typically used in aerospace and military defense electrical interconnect systems

AE-8C1 Connectors Committee

Electrical Bonding of Aircraft Fuel Systems

AIR5128A (Current)

10/04/2022

This SAE Aerospace Information Report (AIR) is limited to the subject of aircraft fuel systems and the questions concerning the requirements for electrical bonding of the various components of the system as related to Static Electric Charges, Fault Current, Electromagnetic Interference (EMI) and Lightning Strikes (Direct and Indirect Effects). This AIR contains engineering guidelines for the design, installation, testing (measurement) and inspection of electrical bonds

AE-5A Aerospace Fuel, Inerting and Lubrication Sys Committee

Cloth, Aramid 5 oz per sq yd (170 g/m2) Basket Weave

AMS3907/1 (Current)10/04/2022

This specification covers one weight and type of weave of aramid cloth

AMS P17 Polymer Matrix Composites Committee

Cloth, Aramid 4.3 oz per sq yd (145 g/m2) Plain Weave

AMS3907/2 (Current)10/04/2022

This specification covers one weight and type of weave of aramid cloth

AMS P17 Polymer Matrix Composites Committee

SAE Manual on Blast Cleaning

J792_202209 (Current)

09/23/2022

Blast cleaning may be defined as a mechanical pre-treatment process in which a suitable stream of solid particles is propelled with sufficient velocity against a work surface to cause a cleaning or abrading action when it comes in contact with the workpiece. Blast cleaning may be employed for a variety of purposes. It is a well-established method for removing sand from castings and burrs or scale from forgings, mill products, or heat treated parts; to promote machinability; and to minimize the possibility of interference in actual operation. In addition to this use, blast cleaning also produces a suitable surface for downstream industrial coatings. All these objectives are often accomplished in the one operation. As a general understanding, this document pertains to blast cleaning only. Any reference to shot peening or other processes is only to explain a context or concept related to blast cleaning. Processes prior to and/or after blast cleaning are entirely possible, but they do not

Surface Enhancement Committee

Tapes, Pressure-Sensitive Adhesive, Masking, Non-Staining for Aircraft Painting Applications

AMST21595A (Current)

09/14/2022

This specification establishes requirements for pressure-sensitive adhesive tape designed for masking and color separation during aircraft painting operations

AMS G8 Aerospace Organic Coatings Committee

Low Stress Grinding of Steel Parts Heat Treated to 180 ksi or Over, and Low Stress Grinding of Chrome Plating Applied to Steel Parts Heat Treated to 180 ksi or Over

AMS2453A (Historical)

09/08/2022

The purpose of this specification is to establish requirements of a grinding method and to provide grinding parameters that will eliminate or minimize overheating, cracking, high residual tensile stresses, and/or other metallurgical changes that decrease structural integrity of steel parts or chrome plated steel parts (see 8.3). This standard establishes requirements for low stress grinding of martensitic high strength steel heat-treated to 180 ksi (1241 MPa) minimum ultimate tensile strength (UTS) and above, and requirements for low stress grinding of chromium plating applied to such high strength steel

AMS B Finishes Processes and Fluids Committee

Steel, Corrosion- and Heat-Resistant, Seamless or Welded Hydraulic Tubing 18.5Cr - 10.5Ni - 0.55Ti (321) Solution Heat Treated and Cold Drawn, 1/8 Hard Temper

AMS5896C (Current)

09/08/2022

This specification covers a corrosion- and heat-resistant steel in the form of two types of thin-wall, close-tolerance hydraulic tubing 0.125 to 2.00 inches (3.18 to 50.8 mm), inclusive, in nominal OD

AMS F Corrosion and Heat Resistant Alloys Committee

Plating, Cadmium (Electrodeposited

AMSQQP416G (Current)

09/08/2022

This specification covers the requirements for electrodeposited cadmium plating

AMS B Finishes Processes and Fluids Committee

Brazing, Aluminum Torch or Furnace

AMS2672H (Current)

09/08/2022

This specification covers the requirements for producing brazed joints on aluminum and aluminum alloys by torch or furnace brazing

AMS B Finishes Processes and Fluids Committee

Steel, Corrosion-Resistant, Welded Tubing, 19Cr - 9.5Ni (304), Solution Heat Treated

AMS5565M (Current)

08/19/2022

This specification covers a corrosion-resistant steel in the form of welded tubing

AMS F Corrosion and Heat Resistant Alloys Committee

Hard Anodic Coating on Aluminum and Aluminum Alloys

AMS2469K (Historical)

08/19/2022

This specification establishes the requirements for a hard anodic coating on aluminum and aluminum alloys

AMS B Finishes Processes and Fluids Committee

Brazing, Aluminum and Aluminum Alloys Molten Flux (Dip

AMS2673F (Current)

08/19/2022

This specification covers the requirements for producing brazed joints of aluminum and aluminum alloys by immersion in a molten flux bath

AMS B Finishes Processes and Fluids Committee

Radomes, Foam Sandwich Polyimide/Quartz Cloth Construction

AMS3912A (Current)

08/10/2022

This specification covers the material and process requirements for fabricating sandwich radomes having polyimide-resin-impregnated quartz cloth shells and polyimide-resin syntactic foam cores

AMS P17 Polymer Matrix Composites Committee

Recommendations for an Additive Manufacturer Designing/Repairing Aircraft Components

ARP7043 (Current)

08/05/2022

This SAE Aerospace Recommended Practice (ARP) provides recommendations for additive manufacturing (AM) designed/repaired aircraft components

AMS AM Additive Manufacturing Metals

Surface Treatment of Polytetrafluoroethylene (PTFE) Preparation for Bonding

AMS2491G (Current)

07/19/2022

This specification covers the engineering requirements for preparing surfaces of both virgin and filled polytetrafluoroethylene (PTFE) materials for bonding and the properties resulting from the treatment

AMS P Polymeric Materials Committee

Hard Anodic Coating on Aluminum Alloys Polytetrafluoroethylene (PTFE)-Impregnated or Codeposited

AMS2482F (Current)

07/08/2022

This specification establishes the requirements for a hard aluminum oxide coating, impregnated or codeposited with polytetrafluoroethylene (PTFE) on aluminum alloys

AMS B Finishes Processes and Fluids Committee

Nickel Alloy, Corrosion- and Heat-Resistant, Seamless or Welded Tubing 62Ni - 21.5Cr - 9.0Mo - 3.7Cb (Nb) Annealed

AMS5581G (Current)

06/20/2022

This specification covers a corrosion- and heat-resistant nickel alloy in the form of two types of tubing

AMS F Corrosion and Heat Resistant Alloys Committee

Nickel Alloy, Corrosion- and Heat-Resistant, Welded Tubing 47.5Ni - 22Cr - 1.5Co - 9.0Mo - 0.60W - 18.5Fe Solution Heat Treated

AMS5588H (Current)

06/20/2022

This specification covers a corrosion- and heat-resistant nickel alloy in the form of welded and drawn tubing

AMS F Corrosion and Heat Resistant Alloys Committee

Surface Preparation for Structural Adhesive Bonding Titanium Alloy Parts

ARP1843A (Current)

06/07/2022

This recommended practice establishes the procedures and requirements for cleaning titanium alloy parts prior to adhesive bonding operations

AMS P17 Polymer Matrix Composites Committee

Surface Preparation for Structural Adhesive Bonding Aluminum Alloy and Low Alloy Steel Parts

ARP1842 (Current)

06/07/2022

This recommended practice describes the materials and procedures for cleaning aluminum alloy detail parts and low-alloy steel parts (other than corrosion resistant steel) prior to structural adhesive bonding operations

null, null

Steel, Corrosion and Heat-Resistant, Seamless Tubing 16.5Cr - 4.5Ni - 2.9Mo - 0.10N Solution Heat Treated

AMS5554H (Current)

05/16/2022

This specification covers a corrosion and heat-resistant steel in the form of thin-wall seamless tubing

AMS F Corrosion and Heat Resistant Alloys Committee

Data Matrix Quality Requirements for Parts Marking

AS9132B (Current)

05/02/2022

This standard defines uniform quality and technical requirements relative to metallic parts marking performed using "data matrix symbology" within the aviation, space, and defense industry. ISO/IEC 16022 specifies general requirements (e.g., data character encodation, error correction rules, decoding algorithm). In addition to ISO/IEC 16022 specification, part identification with such symbology is subject to the requirements in this standard to ensure electronic reading of the symbol. The marking processes covered by this standard are as follows: Dot Peening Laser Electro-Chemical Etching Further marking processes will be included, if required. Unless specified otherwise in the contractual business relationship, the company responsible for the design of the part shall determine the location of the data matrix marking. Symbol position should allow optimum illumination from all sides for readability. This standard does not specify information to be encoded

G-14 Americas Aerospace Quality Standards Committee (AAQSC)

Steel, Corrosion-Resistant, Bars, Wire, and Forgings and Forging Stock 17Cr - 0.52Mo (0.95 - 1.20C) (440C) for Bearing Applications

AMS5923A (Current)

04/06/2022

This specification covers a corrosion-resistant steel in the form of bars, wire, forgings, and forging stock

AMS F Corrosion and Heat Resistant Alloys Committee

Lubricant, Solid Film

AS1701F (Current)

04/01/2022

This document covers the performance requirements for solid dry film lubricants, air dried or heat cured, for use in aerospace applications. These lubricants are intended to prevent galling, and may be capable of remaining effective for extended periods of time after exposure to extreme environmental conditions

E-25 General Standards for Aerospace and Propulsion Systems

Nonlinear Finite Element Calculation of Cold Gas Inflator Housing Ultimate Breakage Load

2022-01-0766

03/29/2022

For cold gas Inflator, high refinement of ultimate pressure load forecast of inflator housing is one key of Inflator development. For inflator housing hydro-burst test ultimate load calculation, nonlinear finite element software for high precision results. At beginning, the material parameters of inflator housing for simulation is correlated. The FEA material model adopts the stress-strain data from uniaxial tensile experiments. Considering the geometrical nonlinearity resulting from large deformation as well as material nonlinearity from plastic hardening, the whole tensile process from tensile deformation to failure of the specimen is simulated. Numerical results show that the simulation is appropriate to predict the entire deformation process, and simulation results of ultimate tensile load, X-shape distribution of concentrated instability zone, the fracture location and inclined angle all agrees with that of test results. After finishing the correlation of uniaxial tensile test and

Shan, Jinhui, Wang, Cheng, Xue, Lele

Investigation of Al ₂ O ₃ -Ni Coated Cast Iron Brake Rotors Under Modified Brake Dynamometer Test Standards

2022-01-0273

03/29/2022

Due to the reduced or less-frequent usages of the friction brakes and the lower brake rotor temperature on electrical vehicles (EV), corrosion would much likely occur on brake rotors. Using hard braking to clean the corroded rotor surfaces often leads to extra rotor surface wear. Improvement in corrosion and wear resistance is an important technological topic to brake rotors for EVs. Many original equipment manufacturers (OEM) and their suppliers are exploring surface treatments including laser cladding and thermal spray processes on cast iron rotors to combat the corrosion issues. However, mentioned surface coating processes increase the cost of brake rotors and there is a need to search for cost-effective coating processes. In this research, a new Al2O3-Ni composite coating was proposed for preparation of a commercial cast iron brake rotor using plasma electrolytic aluminating (PEA) followed by electroless nickel plating (ENP) processes. The added nickel was to fit in the intrinsic

Cai, Ran, Sun, Jiayi, Zhang, Jingzeng, Tjong, Jimi, Foots, Sean, Lavelle, Mark, Nie, Xueyuan

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