Now a days a manufacturing system is oriented towards higher production rate, quality, and reduced cost. Surface roughness is an index for determining the quality of machined products and is influenced by the cutting parameters. In die manufacturing industries Surface roughness of dies are considered as a vital quality characteristic. For the complex shapes of a die, three dimensional machining...

This research focuses on studying the mechanical, tribological, and corrosion behaviors of alloy steels: AISI 4340, 5140, 8620 by laser hardening, respectively. In light tests which have been carried out meticulously, it is concluded that optimum hardening parameter for all steel grades 4 mm/s scanning speed 1300?C surface temperature. Micro-structural changes, Vickers hardness as mechanical pr...

-A pressure-shear plate impact experiment is introduced to study time-resolved friction at interfaces subjected to high sliding speeds under relatively high normal pressures. The conditions of slip at the interface are varied by changing the surface roughness of the impacting plates and by varying the applied normal to shear stress ratio. The configuration offers the simplicity of allowing the ...