硬质合金立铣刀螺旋槽ELID精密成型磨削试验研究  

Experimental Study on ELID Precision Forming Grinding of Spiral Groove of Cemented Carbide End Milling Cutter

作　　者：关佳亮[1,2] 穆德明 陈金 李鑫[1,2] 张航[1,2] Guan Jialiang;Mu Deming;Chen Jin;Li Xin;Zhang Hang(Department of Materials and Manufacturing,Beijing University of Technology,Beijing 100124,China;不详)

机构地区：[1]北京工业大学材料与制造学部,北京市100124 [2]北京工业大学先进制造技术北京市重点实验室

出　　处：《工具技术》2023年第2期45-49,共5页Tool Engineering

摘　　要：制造立铣刀过程中,磨削螺旋槽是关键工序,采用传统树脂结合剂砂轮磨削螺旋槽存在让刀、刃宽尺寸偏差大、加工效率低等难题。采用ELID磨削技术对硬质合金立铣刀螺旋槽进行精密成型磨削试验,设计二次回归通用旋转组合实验法,探究磨削工艺参数对硬质合金立铣刀螺旋槽刃宽尺寸的影响规律,利用DPS软件统计实验数据并建立数学模型,通过MATLAB软件优化得出最佳工艺参数组合并进行试验验证。试验结果表明,采用砂轮转速3188.40r/min、砂轮进给量1300μm/s、电解电压85V、占空比42.37%的参数对螺旋槽进行ELID精密成型磨削加工,有效解决了让刀问题,与相同粒度的树脂砂轮比,生产效率提高25%,刃宽尺寸偏差范围降低8%,偏差值保持在6μm以内。Grinding spiral groove is a key process in the process of manufacturing end milling cutter.Using traditional resin bonded grinding wheel to grind spiral groove has some problems,such as large deviation of cutter and edge width and low machining efficiency.In this paper,ELID grinding technology is used to carry out precision forming grinding experiment on the spiral groove of cemented carbide end milling cutter,and a quadratic regression general rotation combination experiment is designed to explore the influence of grinding process parameters on the surface quality of spiral groove of cemented carbide end milling edge.The experimental data are counted and the mathematical model is established by using DPS software,the optimal combination of process parameters is optimized by MATLAB software and verified by experiments.The experimental results show that the grinding wheel speed is 3188.40r/min and the grinding wheel feed rate is 1300μm/s,electrolytic voltage 85V,duty cycle 42.37%,ELID forming grinding is carried out on the spiral groove,which effectively solves the problem of cutting tool,improves the production efficiency by 25%,reduces the size deviation range of blade width by 8%,and maintains the deviation value within 6μm.

关 键 词：硬质合金立铣刀螺旋槽 ELID磨削 二次回归通用旋转实验法 工艺参数优化组合 

分 类 号：TG580.6[金属学及工艺—金属切削加工及机床] TG714[机械工程—机械制造及自动化] TH16