Effects of Broaching Operations on the Integrity of Machined Surface

Surface integrity describes the characteristics of a workpiece surface after being modified by manufacturing processes. It is an important term particularly where safe performance of parts is a prime concern. Broaching, is a unique machining operation where one stroke of the tool delivers the finished product; hence, the broaching regime directly governs the quality of final part during service life. This paper investigates the effects of broaching on the subsurface microhardness, and subsurface plastic deformation for AISI12L14, AISI1045, and Al7075. The results show the effect of broaching operation on the integrity of the machined surface.