The mechanics of machining selective laser melted super duplex stainless steels

Duplex stainless steels come under the difficult-to-machine category, considering loss of sensitive balance between constituent phases due to thermal and mechanical working effects. Selective laser melting is emerging as an additive process for achieving near-net shape manufacturing solutions with these steels. Nevertheless, post-printing machining essential varying degrees machinability responses melted duplex need sufficient attention. This paper addresses this gap, experimental evaluation mechanics Specimens printed most promising conditions are evaluated machinability, comparing wrought counterparts also ascertaining differential as-built solution annealed states. Cutting forces measurements confirm better samples which interesting finding possibility melting, machining, post-process heat treatment best possible sequence processing circumvent difficulties in machining.