机械工件切削中积屑瘤问题的改善对策  

Improvement of Built-up Edge in Machining

作　　者：蔡杨 CAI Yang(Zhejiang Yongcheng Machinery Co.,Ltd.,Zhuji 311800)

机构地区：[1]浙江永成机械有限公司,诸暨311800

出　　处：《现代制造技术与装备》2021年第7期174-175,共2页Modern Manufacturing Technology and Equipment

摘　　要：在机械工件的切削过程中,被切金属层在切削刃和前刀面的作用下,受挤压而产生以剪切滑移变形为主的塑性变形,会有少量切屑分子粘结在车刀刀刃部位的边缘,从而产生坚硬的积屑瘤。因此,分析积屑瘤的产生机理、弊端以及影响积屑瘤产生的主要因素,提出了抑制和消除积屑瘤的对策,以提高机械工件的加工合格率。In the cutting process of mechanical workpieces,the cut metal layer is under the action of the cutting edge and rake face,when the chips are subjected to extrusion and produce plastic deformation mainly due to shear slip deformation,a small amount of chip molecules will stick to the edge of the cutting tool,resulting in hard built-up edge.This article analyzes the generation mechanism,disadvantages,and main factors affecting the buildup of built-up edge,and proposes countermeasures to suppress and eliminate built-up edge to improve the machining pass rate of mechanical workpieces.

关 键 词：积屑瘤 切削加工 工件精度 改善对策 

分 类 号：TG506[金属学及工艺—金属切削加工及机床]