Kesan parameter pemesinan ke atas pembentukan serpihan semasa mengisar hujung keluli terkeras aisi H 13 menggunakan mata alat sermet

Abstract

The effect of machining parameters on chip formation during end milling AISI H13 tool steels using cermet inserts was investigated. The machining range were set at speed of 224- 355 m min-1, feed rate of 0.1-0.25 mm tooth-1 and radial depth of cut of 0.3 -0.8 mm. The SEM analysis shows that' chip formation strongly depends on the depth of cut and feed rate rather than on the cutting speed. At low machining conditions at speed of 224 m min-1 feed rate of 0.1 mm tooth-1 and radial depth of cut of 0.3 mm, discontinuous chip with smooth edges was produced, whereas at high feed rate of 0.25 mm tooth-1and radial depth of cut of 0.8 mm, saw tooth chips was formed