On dry machining of AZ31B magnesium alloy using textured cutting tool inserts  

作　　者：Shailendra Pawanr Kapil Gupta 

机构地区：[1]Department of Mechanical and Industrial Engineering Technology,University of Johannesburg,Doornfontein Campus,Johannesburg 2028 South Africa

出　　处：《Journal of Magnesium and Alloys》2024年第4期1608-1618,共11页镁合金学报（英文）

摘　　要：Magnesium alloys have many advantages as lightweight materials for engineering applications,especially in the fields of automotive and aerospace.They undergo extensive cutting or machining while making products out of them.Dry cutting,a sustainable machining method,causes more friction and adhesion at the tool-chip interface.One of the promising solutions to this problem is cutting tool surface texturing,which can reduce tool wear and friction in dry cutting and improve machining performance.This paper aims to investigate the impact of dimple textures(made on the flank face of cutting inserts)on tool wear and chip morphology in the dry machining of AZ31B magnesium alloy.The results show that the cutting speed was the most significant factor affecting tool flank wear,followed by feed rate and cutting depth.The tool wear mechanism was examined using scanning electron microscope(SEM)images and energy dispersive X-ray spectroscopy(EDS)analysis reports,which showed that at low cutting speed,the main wear mechanism was abrasion,while at high speed,it was adhesion.The chips are discontinuous at low cutting speeds,while continuous at high cutting speeds.The dimple textured flank face cutting tools facilitate the dry machining of AZ31B magnesium alloy and contribute to ecological benefits.

关 键 词：Magnesium alloy Dry machining Textured tools Flank wear SUSTAINABILITY 

分 类 号：TG146.22[一般工业技术—材料科学与工程]