文献类型：期刊文献

中文题名：微槽刀具切削GH4169的工件表面完整性研究

英文题名：Study on Surface Integrity of Turning GH4169 by the New Microgroove Cutting Tool

作者：邹中妃 陈跃威 何林

第一作者：邹中妃

机构：[1]贵州理工学院机械工程学院,贵阳550003;[2]贵州大学机械工程学院,贵阳550025;[3]六盘水师范学院,贵州六盘水553004

第一机构：贵州理工学院机械工程学院

年份：2020

卷号：0

期号：4

起止页码：134-138

中文期刊名：组合机床与自动化加工技术

外文期刊名：Modular Machine Tool & Automatic Manufacturing Technique

收录：CSTPCD;;北大核心:【北大核心2017】；

基金：国家自然科学基金(51765009,51665007)。

语种：中文

中文关键词：微槽刀具;GH4169;粗糙度;残余应力;加工硬化

外文关键词：microgroove cutting tool;GH4169;roughness;residual stress;work-hardening

摘要：针对如何改善零件的已加工表面完整性,提高零件的服役能力,文章基于温度场形状开展切削GH4169的刀具前刀面微槽设计研究,设计并制备了新型微槽刀具,并将原刀具和微槽刀具加工后的工件表面完整性进行对比试验研究,结果表明:微槽结构改变了刀具的平衡力系,使其切削力和切削温度降低,进而使得在推荐切削参数下,使用微槽刀具切削的表面质量优于原刀具,粗糙度降低了22.96%,残余拉应力降低了30.7%,工件表面显微硬度随切削速度的增加而加剧,且微槽刀具切削后的工件硬化程度和深度均有所降低。
Aiming at how to improve the machined surface integrity and service ability of parts, this paper studies the design of micro-groove on the rake face of tool for cutting GH4169, based on the shape of temperature field. Designs and manufactures a new micro-groove cutting tool, and the machined surface integrity of workpiece by two kinds of cutting tools is compared. The results show that the micro-groove structure changes the balance force system of the cutting tool, reduces the cutting force and cutting temperature, Under the recommended cutting parameters, the surface quality of the micro-groove cutting tool is better than that of the original cutting tool, that is, the roughness is reduced by 22.96%, the residual tensile stress is reduced by 30.7%. The surface microhardness of the machined surface increases with the increasing of cutting speed, and the work-hardening degree and depth of the machined surface are reduced by the micro-groove cutting tool.