| dc.description.abstract |
In the study of machining, the residue from the cutting carried out in machining is called chip (scratch), the chip produced by the machining process has a different shape and thickness, the shape of the chip produced in the turning process has characteristics that are closely related to the tool wear mode. it is important to be familiar with the basic mechanisms that affect chip formation in order to develop efficient cutting tools. The investigation into chip formation began around World War II with the increased use of more powerful and more powerful cutting machines, generally for metal cutting with the advent of new high-speed steel cutters. The main turning parameters, namely cutting speed, feed rate, depth of cut, tool geometry and tool material have a significant influence on controlling chip formation. The workpiece used in this study was AISI 4340 Steel (48 ± 1 HRC) and the tool used was a chisel Layered PVD and CVD. The tool used to measure chip thickness in this research is Micro Capture Plus software. In the turning process, 8 cutting conditions are carried out using a CNC lathe. is with optimal cutting conditions, namely V = 180 m/min , vf = 352.4 mm/min then get a characteristic chip thickness of a = 0.934 mm.
Keywords : Chip Thickness, Dry Turning, AISI 4340 Steel, Minitab.
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