ANALYSIS OF THE EFFECT OF HSS TOOL ANGLE ON TOOL LIFE IN ST-37 STEEL MANUFACTURING.

The turning process is one of the machining processes for producing machine components. Where lathe included in that uses a chisel. quality cut surface depends on cutting conditions, example low with large feed and depth will result rough so on. This study aims to determine what effect angle length use chisel, where chisel used an HSS In this using experimental research methods aim knowing time difference obtained from results different angles workpiece type ST-37 steel material. study, 3 samples were made but still same rotational speed 252 rpm. stable other words feed, which 2mm. After performing chisels, be obtained, then analysis happens hss tool material process. research, data show influence very significant life tool.