Experimental Investigation of Friction Coefficient and Wear of sheet metals used for Automobile Chassis

Abstract

Sheet metals are used to manufacture automobile components under forming processes with good mechanical properties like hardness, strength, friction, and wear resistance. In this study, five sheet metals that are continuously used to manufacture automobile components such as SAPH440, CR2D, D HR2, Fe510, and Fe410, were used for experimental investigation of friction coefficient and wear rate of sheet metals on pin-on-disc. In experimental investigation, dry sliding test was used at constant speed of 50rpm with 6kg, 10kg, 14kg, and 18kg load. To perform the wear test D2 was used as a disc material and SAPH440, CR2D, D HR2, Fe510, and Fe410 as the pin material. Selection of sheet metals was performed based on product FMEA and Process FMEA. Overall study samples are prepared with ASTM standards, performed tensile test as well as check chemical composition of all the sample materials, and select D2 as disk materials by referring brinell hardness numbers of tool steel. After experimental investigation it was observed that SAPH440 grade material maintained maximum life of component with minimum wear compared to other sheet metals. It will directly affect the overall performance as well as life of the Automobile Chassis to manufacture component by referring specific type of sheet metal.