Abstract To study the manufacturability and mechanical properties of a low alloy heat treatable medium carbon steel by additive manufacturing, 42CrMo4 (AISI4140) specimens were manufactured laser powder bed fusion. Influences processing parameters on relative density crack investigated. Moreover, Charpy impact tests, microhardness, tensile tests for with without preheating also studied. Results...

The surface and subsurface conditions of components are critical for their functional properties. Every manufacturing process modifies the condition as a consequence its mechanical, chemical, thermal impact or combinations three. depth affected zone varies different machining operations is related to parameters characteristics. Furthermore, initial material state has decisive influence on modif...