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Mechanical and corrosion behaviour of 7075 aluminium matrix composite reinforced with TiC and Al2O3

Vellore Institute of Technology-Subham Jaiswal, Govindasamy Rajamurugan, Prabu Krishnasamy, Yashwardhan Shaswat, Mishra Kaushik
  • Technical Paper
  • 2019-28-0094
To be published on 2019-10-11 by SAE International in United States
Various research regarding new methods of fabrication and modifications of Aluminium alloy to improve the existing properties are going on. The wide application of aluminium in aerospace and automobile Industry, demands improved mechanical properties with little to zero increment in weight. This work is based on the fabrication of hybrid metal matrix composites of 7075 aluminium alloy with the addition of TiC (Titanium Carbide) and Al2O3(Aluminium Oxide) reinforcements is fabricated using stir casting technique. Weight percentage of 5%, Al2O3 8% and Tic 12%, Tic 15% and Al2O3 10%. Samples are prepared for each mass distribution . Varying weight fraction samples are prepared to have a proper comparative study of the mechanical properties. In the fabrication we gradually increased the weight of TiC and Al2O3 as we progressed with the experiment.. The objective is to have a clear idea of mechanical properties variation with variation in reinforcement. Hardness tests is done using optical Brinell Hardness Testing machine . A proper characterisation of the samples was attained by using advanced electron microscopes. Tensile properties of the samples…
 

Design and Analysis of Hybrid Metal Matrix Composite Connecting Rod via Stir/Squeeze Casting Route

Sri Krishna College of Engg. and Tech.-Soundararajan Ranganathan, Sathishkumar Kuppuraj, Karthik Soundarrajan, Ashokvarthanan Perumal
  • Technical Paper
  • 2019-28-0113
To be published on 2019-10-11 by SAE International in United States
Connecting rod is a link which connects the crankshaft and piston in an internal combustion engine. The main role of a connecting rod is to change the rotation movement of the crankshaft to the linear movement of the piston and it also withstands high tensile and compressive stress. Mostly the connecting rod is manufactured by forging process or machining process. The main intern of our proposed work is to manufacture a two set of composites A356 alloy with reinforcement of 5 wt% silicon carbide and 10 wt% flyash by using stir casting and stir cum squeeze casting process and obtain testing results. Further, the same material properties were taken for modelling and analysing of the developed connecting rod. Now a day’s composite material takes a vital role/demandable one in the analysis because it offers novel response and satisfies current industrial needs. The FEA analysis is done on the connecting rod by taking four different case conditions for an 180cc engine. The output parameter such as total deformation, Von Mises stress, and maximum equivalent stress are…
 

Fabrication and machinability study of Al2219 metal matrix composites reinforced with SiN/MoS2 nanoparticles

Sri Sairam Engineering College-Vetri Velmurugan Kannan
Vellore Institute of Technology-Venkatesan Kannan, Devendiran Sundararajan, Akshay Seth, Navya Sood, Aditya Babu
  • Technical Paper
  • 2019-28-0170
To be published on 2019-10-11 by SAE International in United States
Composites materials are substituting constituents for traditional materials due to their remarkable properties, and the addition of nanoparticles gives a new development in the material domain. The nanoparticles influence on fabrication and machinability investigation study is essential as the composites to be used in applications like automotive and aerospace. The current study investigates the machinability characteristics of Al2219 based metal composites reinforced with nanoparticles of SiN/MoS2. Al2219- reinforcements (SiN and MoS2) composites are fabricated by the method of stir casting. Four different compositions (Al2219/SiN (2 wt% and 4 wt%), , Al2219/2 wt.% SiN/ 2 wt.% MoS2, Al2219/2 wt.% MoS2) are fabricated by varying the different weight percentages of nanoparticles reinforcements. An attempt is made to study the investigation analysis of force, surface roughness, and tool wear using CNC machine lathe to consider the effect of cutting speed, cutting depth and samples. The machinability test is carried out, and the performance is compared. Addition of 2 wt% of SiN in Al2219 is to increase the hardness of nearly about 21%, 14%, 40% compared to that of…
 

A Comparative Study on Microstructures and Mechanical Properties of Al-Gnps Composites Fabricated By Casting Method

Sree Vidyanikethan Engineering College-Bhanu Prakash Palampalle, Krishnamachary Pattipati Chinna, Binoj Joseph Selvi
  • Technical Paper
  • 2019-28-0139
To be published on 2019-10-11 by SAE International in United States
This paper describes an investigation on microstructures and mechanical properties of pure aluminium graphene nano platelets (GNPs) composites prepared by ultrasonic assisted stir casting technique. The proportion of GNPs varied from 0.5 to 2.0 wt. % in pure aluminium matrix with 99% purity. The investigations on composites revealed that Pure Al -1.0 % GNPs composite exhibited better mechanical properties with 48.49 % (~49%) increase in tensile strength and 34.53 % (~35%) increase in micro hardness compared to results of composites fabricated by stir casting technique. FESEM analysis was done to examine the surface morphology, whereas the Fractography of the tested composites and the XRD analysis was to inspect the phase analysis. The analysis revealed that there was uniform distribution of GNPs in the pure aluminium matrix due to cavitation effect with less porosity due to which there is significant enhancement in mechanical properties compare to composites by stir casting technique.
 

Study of Mechanical Properties and Multi Response Optimization of Process Parameter for Showing Signs of Improvement Product Quality in Drilling of Alsi7cu4 Utilizing GRA in Taguchi Method

SRM Institute Of Science And Technology-Sundar Singh Sivam Sundarlingam Paramasivam, Krishnaswamy Saravanan, Durai Kumaran, Raj Rajendran
TISHIK University-Ganesh Babu Loganathan
  • Technical Paper
  • 2019-28-0058
To be published on 2019-10-11 by SAE International in United States
Showing and streamlining of cutting parameters are a champion among the most essential components in drilling processes. This examination displays the change of drilling procedures parameters on AlSi7Cu4 made by Gravity Die Casting and with replies in light of OA with Taughi GRA and ANOVA. The effects of alloying parts were bear on the Chemical Composition, microstructures, mechanical property, Hardness, X-Ray and S Das response is particularly analyzed. Motivations on the progression of Drilling parameters using the Taguchi strategy to obtain slightest surface Roughness (Ra), Circularity Error, Burr size and Thrust Force. Different Drilling preliminaries were coordinated using the L9 OA on CNC Milling machine. The examinations were accomplished on AlSi7Cu4 composite piece cutting tool of an ISO 460.1-1140-034A0-XM GC3 of 12 mm measurement with Tool 140 degrees, used all through the preliminary work under dry cutting conditions. The central and participation effect of the data factors on the foreseen responses are analyzed. The foreseen regards and estimated regards are really close. The given system could be utilized to pick the level of infiltrating constraints.…
 

Experimental Investigation of Silicon Carbide Nanoparticles Reinforced Magnesium Alloy (AZ91E) Metal Matrix Composite by Vacuum Stir Casting Method

Centre for Automotive Materials, SRMIST-Chandradass Jeyaseelan, Baskara Sethupathi Paramathma
PRIST-Thirugnana Sambandham Thangavel, Kannan Mahadevan
  • Technical Paper
  • 2019-28-0169
To be published on 2019-10-11 by SAE International in United States
In the present investigation silicon carbide nanoparticle reinforced magnesium alloy (AZ91E) composites were prepared by vacuum stir casting process in an inert atmosphere. Required amount of silicon carbide nanoparticle was added to AZ91E molten melt with constant stir speed of 600 rpm and vacuum pressure of 1 lpm so that the final composite contains 5, 7.5 and 10 wt.% SiC nanoparticle. The prepared composite was subjected to mechanical and microstructure studies. The addition of silicon nanoparticle enhances the mechanical properties compared to conventional magnesium alloy. Microstructure studies reveal uniform distribution of silicon carbide in magnesium alloy matrix.
 

Investigation of Setting Input Process Parameters for Getting Better Product Quality in Machining Of AM60 Magnesium Alloy – TOPSIS and ANOVA Approach

SRM Institute of Science and Technology-Krishnaswamy Saravanan, Raj Rajendran, Sundar Singh Sivam Sundarlingam Paramasivam, Durai Kumaran, Harish Sriram
Tishk International University-Ganesh Babu Loganathan
  • Technical Paper
  • 2019-28-0136
To be published on 2019-10-11 by SAE International in United States
This investigation shows the improvement of Machining parameters on AM-60 Mg alloy made with the help of Gravity Die Casting and with reactions upheld symmetrical cluster with “Technique for Order Preference by Similarity to Ideal Solution” (TOPSIS). Which Focuses on the streamlining of Machining parameters utilizing the system to get least surface Roughness (Ra), Minimum Tool Wear, minimum Cutting Time, Power Requirement and Torque and Maximize MRR. A good amount of Machining tests was directed in view of the L9 symmetrical exhibit on CNC machine. The trials were performed on AM60 utilizing cutting device of grade-ISO 460.1-1140-034A0-XM GC3 of 12,16 and 25 mm width with cutting point of 140 degrees, all throughout the test work under various cutting conditions. TOPSIS and ANOVA were utilized to work out the major vital parameters like Cutting speed, feed rate, Depth of Cut and Tool Diameter which influence the Response. The normal qualities and estimated esteems are genuinely close. The given model can be utilized to choose the level of Machining parameters.
 
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Magnesium Alloy, Sand Castings, 2.8Nd - 1.4Gd - 0.4Zn - 0.6Zr (EV31A - T6), Solution and Precipitation Heat Treated

AMS D Nonferrous Alloys Committee
  • Aerospace Material Specification
  • AMS4429B
  • Current
Published 2019-08-01 by SAE International in United States

This specification covers a magnesium alloy in the form of sand castings.

 
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Nickel Alloy, Corrosion and Heat-Resistant, Investment Castings 53.3Ni - 16.5Cr - 17Mo - 4.5W - 5.8Fe - 0.40V (CW-12MW) As-Cast

AMS F Corrosion Heat Resistant Alloys Committee
  • Aerospace Material Specification
  • AMS5388K
  • Current
Published 2019-07-30 by SAE International in United States
This specification covers a corrosion and heat-resistant nickel alloy in the form of investment castings.
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Nickel Alloy, Corrosion and Heat-Resistant, Investment Castings 73Ni - 0.14C - 13Cr - 4.5Mo - 2.3Cb (Nb) - 0.75Ti - 6.0Al - 0.010B - 0.10Zr Vacuum Cast, As-Cast

AMS F Corrosion Heat Resistant Alloys Committee
  • Aerospace Material Specification
  • AMS5391H
  • Current
Published 2019-07-30 by SAE International in United States
This specification covers a corrosion and heat-resistant nickel alloy in the form of investment castings.
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