A Study on Tool Damage of Threading Tap in Screw Cutting of Stainless Steel 15-5PH

摘要

In this study, the screw cutting experiments of stainless steel 15-5PH was carried out by employing the tapping center in order to investigate the tool damage of threading tap tool. Mainly, the effect of the machining conditions and the ground chamfer shape of tap tool on the thrust force and the tool wear were discussed. As a result, it was found that the thrust force was strongly influenced by the ground amount of tap tool chamfer. Especially, large change of thrust force occurred when the tap tool engaged to the pilot hole and returned out of hole.