Abstract
Dumpers have studied intensively in the last years and they are the main parts of the suspension system with vertical oscillations role in the absorption of the automobile. The combination of suspension coil with dumper is forming the main body of the suspension system. Dumpers are mainly used for production of automotive industry. The influence of the degree of cold drawing on the mechanical properties of the carbon steel material were studied for the XRD and wear test point of view using microtribometer and diffractometer test machines. The purpose of the work is to observe the main effects of the degree of reduction at different gradations by analysing the X-Ray diffraction – crystallographic determination and scratch test by observing the wear tracks. It was finally measured the loss of material during the wear test, the sample with the highest grade of plastic deformation had the lowest material loss.
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