摘要
在微细铣削加工中,刀具易发生磨损失去切削能力,这严重影响了工件加工质量和效率。文章研究了微细铣削黄铜H59时,4种不同的切削条件(干切削、浇灌润滑、微量润滑MQL、-5℃低温气体冷却)对刀具磨损、切削力和表面粗糙度Ra的影响规律,并分析评价出了能够减少刀具磨损,保证加工质量的最佳切削条件。试验结果表明:不同的评判指标下,4种切削条件的优劣次序不完全相同;微细铣削中借助切削力与表面粗糙度Ra的变化趋势可以辅助判断刀具磨损情况;所用4种切削条件中,微量润滑条件特别适合高质量的黄铜材料微细铣削加工。该研究对于微细铣削不同材料时切削条件的选择具有实际的指导意义。
The tool is prone to wear and loss of cutting ability,which seriously affects the quality and efficiency of workpiece processing in micromilling.In this paper,the effects of four different cutting conditions(dry cutting,flooded coolant,minimum quantity lubrication(MQL),-5℃chilled air)on tool wear,cutting force and surface roughness Ra are studied when micromilling brass H59.According to different evaluation indexes,the good and bad order for four cutting conditions is not identical.The tool wear can be analyzed by the variation trends of cutting force and surface roughness Ra in micromilling.Compared with other cutting conditions,MQL is especially suitable for high quality micromilling brass materials.This research has practical guiding significance for the selection of cutting conditions in micromilling of different materials.
作者
杨学明
程祥
李阳
王飞
王文豪
YANG Xue-ming;CHENG Xiang;LI Yang;WANG Fei;WANG Wen-hao(School of Mechanical Engineering,Shandong University of Technology,Zibo Shandong 255000,China)
出处
《组合机床与自动化加工技术》
北大核心
2019年第9期32-35,共4页
Modular Machine Tool & Automatic Manufacturing Technique
基金
山东省自然科学基金(ZR2017MEE050)
山东省自然科学基金(ZR2015EL023)
淄博市校城融合发展计划(2017ZBXC189)
