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Balaji, K V
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MOLD IN COLOR DIAMOND WHITE ASA MATERIAL FOR AUTOMOTIVE EXTERIOR APPLICATION

Mahindra & Mahindra Ltd-Karthik Govindaraj, K V Balaji, Murukesan Vimalathithan, Gandhi Samir, Ladhe Rajesh
  • Technical Paper
  • 2019-28-2562
To be published on 2019-11-21 by SAE International in United States
In this paper, mold in color diamond white ASA material has been explored for front bumper grill, fender arch extension and hinge cover applications. Other than aesthetic requirements, these parts have precise fitment requirement under sun load condition in real world usage profile. Structural durability of the design was validated by virtual engineering. Part design and material combinations with better tooling design iterations were analysed by using mold flow analysis. Complete product performances were validated for predefined key test metrics such as structural durability, thermal aging, cold impact, scratch resistance, and weathering criteria. This part met required specification. This mold in color ASA material-based parts has various benefits such as environmentally friendly manufacturing by eliminating environmental issues of coating, easily recycled, and faster part production because intended color achieved in one step during molding. Also, it lowers overall production energy footprint, less scrap with no secondary painting, and lower final part cost by eliminating secondary operations.
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Design of Light Weight Footstep Using Continuous Glass Fiber Reinforced Plastics

Mahindra & Mahindra, Ltd.-Praveen Kumar, Vivek KV Shenoy, Ashish Kumar Sahu, Srivatsa Sriperumbudur, Anton Kumanan, K V Balaji
  • Technical Paper
  • 2019-28-0172
To be published on 2019-10-11 by SAE International in United States
Utility or Off-road vehicles are characterized with their higher ground clearances. Higher ground clearance of vehicle requires the vehicle to have footsteps for easy entry and exit of passengers from the vehicle. A typical foot step construction consists of structural steel brackets with an Aluminum or plastic top panel. Conventional steel construction is heavier to meet weight bearing capacity and durability requirements. Our objective of this work is to explore lightweight materials which can meet these performance requirements with a lighter construction. We chose to study the continuous glass fiber reinforced plastic as an alternative to the metal construction.
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Vinyl Ester Based SMC Material for Automotive Oil Sump Application

Mahindra & Mahindra Ltd-G Karthik, K V Balaji, Bathiry Sivaraman, Deshpande Samar
Published 2015-04-14 by SAE International in United States
This paper describes vinyl ester based SMC (Sheet molding composite) material for oil sump part in automotive application. This sheet moulding composite is a ready to mould glass-fibre reinforced vinyl ester material primarily used in compression moulding process. This vinyl ester resin is compounded with glass fibre to meet the product functional requirements. Oil sump is a structural component under bonnet that forms the bottommost part of the crankcase and also contain the engine oil before and after it has been circulated through the engine. Generally, metals are preferred material for this application.In this paper, fibre filled vinyl ester based thermoset resin (SMC) material has been explored for oil sump application. They possess excellent properties in terms of tensile strength, modulus, impact strength, dimensional stability, high/low temperature resistance and oil resistance. These oil sump parts were made by compression molding process and validated for the predefined key test metrics such as thermal ageing, oil compatibility, NVH and torque retention criteria's and the parts met the required specification.The developed vinyl ester based SMC sump part has…
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Eco-Friendly Recycled PET (Polyethylene Terephthalate) Material for Automotive Canopy Strip Application

Mahindra & Mahindra Ltd-G Karthik, K V Balaji, Rao Venkateshwara, Bagul Rahul
Published 2015-04-14 by SAE International in United States
This paper describes the suitability of recycled polyethylene terephthalate (RPET) material for canopy strip in a commercial vehicle. The material described in this paper is a PET compound recycled from used PET bottles and reinforced with glass fibers so as to meet the product's functional requirements. The application described in this paper is a Canopy strip which is a structural exterior plastic part. Canopy strip acts as a structural frame to hold the Vinyl canopy in both sides of the vehicle. Functionally, the part demands a material with adequate mechanical and thermal properties.Generally, PET bottles are thrown after use thereby creating land pollution. PET being inert takes an extremely long time to degrade thereby occupying huge amount of space in landfills and directly affecting rain water percolation. This work focused on recycling the PET bottles and compounding them suitably so as convert them into useful automotive parts. The parts made out of this sustainable solution were validated for thermal ageing, cold impact and other vehicle level durability performance related tests and found to meet the…
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