CBN磁性磨料磁力研磨TC4钛合金工艺参数优化  

Optimization of Process Parameters for Magnetic Abrasive Finishing TC4 Titanium Alloy by CBN Magnetic Abrasive

作　　者：刘宁 赵玉刚[1] 高跃武[1] 张勇[1] 赵传营 LIU Ning;ZHAO Yu-gang;GAO Yue-wu;ZHANG Yong;ZHAO Chuan-ying(School of Mechanical Engineering,Shandong University of Technology,Zibo Shandong 255000,China)

机构地区：[1]山东理工大学机械工程学院,山东淄博255000

出　　处：《组合机床与自动化加工技术》2020年第3期131-135,共5页Modular Machine Tool & Automatic Manufacturing Technique

基　　金：国家自然科学基金(51875328);山东省自然科学基金(ZR201807060394)。

摘　　要：为提高磁力研磨TC4钛合金的研磨效果,采用了一种新型CBN磁性磨料,通过正交试验法对磁力研磨TC4钛合金试验中各工艺参数进行优化,并通过试验评价新型CBN磁性磨料的结合强度和研磨能力。结果表明:优化工艺参数为:进给速度1mm/min、主轴转速1500r/min、加工间隙1mm和磨料填充量2.5g。在采用CBN磁性磨料和最优工艺参数组合下,钛合金工件经过30min研磨表面粗糙度从0.330μm下降到0.098μm,表面质量明显提高。研磨60min后磁性磨料未出现磨料脱落和破碎现象,磨料结合十分牢固。In order to improve the grinding effect of TC4 titanium alloy,a new type of CBN magnetic abrasive was used.The process parameters in the TC4 titanium alloy test were optimized by orthogonal test.The bonding strength and grinding ability of the novel CBN magnetic abrasives were evaluated by experiments.The results show that the optimized process parameters are:feed rate 1mm/min,spindle speed 1500r/min,machining gap 1mm and abrasive filling volume 2.5g.Under the combination of CBN magnetic abrasive and optimal process parameters,the surface roughness of the titanium alloy workpiece decreased from 0.330μm to 0.098μm after 30min,and the surface quality was obviously improved.After grinding for 60 minutes,the abrasives were not peeled off and broken,and the abrasives were very strong.

关 键 词：CBN 钛合金 磁力研磨 正交试验 参数优化 表面粗糙度 

分 类 号：TH16[机械工程—机械制造及自动化] TG506[金属学及工艺—金属切削加工及机床]