高速精密磨削9CrWMn冷作模具钢的磨削力和比磨削能

王艳; 徐九华; 杨路

doi:10.3788/OPE.20152307.2031

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高速精密磨削9CrWMn冷作模具钢的磨削力和比磨削能

微纳技术与精密机械 | 更新时间：2020-08-12

- 高速精密磨削9CrWMn冷作模具钢的磨削力和比磨削能
- Grinding force and specific grinding energy of high speed grinding of 9CrWMn cold work die steel
- 光学精密工程 2015年23卷第7期页码：2031-2042
- 作者机构：
  
  1. 上海理工大学机械工程学院上海,200093
  2. 南京航空航天大学机电工程学院,江苏南京,210016
- 作者简介：
  
  [ "王艳(1969-),女,江苏镇江人,博士,教授,1992年于扬州大学获得学士学位,1998于上海交通大学获得硕士学位,2006年于浙江大学获得博士学位,南京航空航天大学机电学院博士后,主要从事磨削加工和特种加工技术的研究。E-mail:yanwang909909@163.com" ]
  [ "徐九华(1979-),男,安徽马鞍山人,教授,博士生导师,1986年、1989年、1992年于南京航空学院分别获得学士、硕士、博士学位,主要从事难加工材料高性能切削/磨削技术、超硬磨料工具技术、抗疲劳制造技术、超精密加工技术研究。E-mail:jhxu@nuaa.edu.cn" ]
  [ "杨路(1987-),男,江苏宿迁人,博士研究生,2010年于江南大学获得学士学位,2010年保送进入南京航空航天大学机电学院硕博连读,主要从事磨削技术的研究。E-mail:yang5718457@126.com" ]
- 基金信息：
  
  国家973重点基础研究发展计划资助项目(No. 2009CB724403)()
- DOI：10.3788/OPE.20152307.2031
  中图分类号： TG580.1+1
- 收稿日期：2014-11-05，
  
  修回日期：2014-12-30，
  
  纸质出版日期：2015-07-25
- 稿件说明：
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王艳, 徐九华, 杨路. 高速精密磨削9CrWMn冷作模具钢的磨削力和比磨削能[J]. 光学精密工程, 2015,23(7): 2031-2042

WANG Yan, XU Jiu-hua, YANG Lu. Grinding force and specific grinding energy of high speed grinding of 9CrWMn cold work die steel[J]. Editorial Office of Optics and Precision Engineering, 2015,23(7): 2031-2042
王艳, 徐九华, 杨路. 高速精密磨削9CrWMn冷作模具钢的磨削力和比磨削能[J]. 光学精密工程, 2015,23(7): 2031-2042 DOI： 10.3788/OPE.20152307.2031.

WANG Yan, XU Jiu-hua, YANG Lu. Grinding force and specific grinding energy of high speed grinding of 9CrWMn cold work die steel[J]. Editorial Office of Optics and Precision Engineering, 2015,23(7): 2031-2042 DOI： 10.3788/OPE.20152307.2031.

摘要

分析了高速精密磨削9CrWMn冷作模具钢的机理

采用DEFORM软件对高速磨削模具钢9CrWMn过程进行了磨削力仿真。使用高精密高速平面磨床对模具钢9CrWMn进行了高速精密磨削试验

并在线测量了多种工况下的磨削力。结果表明:在其他两组工艺参数不变时

随着工件进给速度增加

磨削力特别是法向磨削力会增大近45%;法向磨削力和切向磨削力随着砂轮的线速度上升而下降

法向磨削力下降近33%;磨削深度对磨削力影响较大

大的磨削深度对法向磨削力的影响尤其显著

可使法向磨削力增大近100%。分析了磨削工艺参数对比磨削能的影响规律

结果显示:随着磨削深度和工件进给速度的增大

比磨削能呈比较明显的下降趋势

符合磨削加工中的尺寸效应;随着砂轮线速度的增大

比磨削能呈上升趋势。最后

对高速磨削前后工件表面的微观形貌进行了对比分析

磨削力试验结果和仿真理论分析相一致。

Abstract

The high speed grinding mechanism for 9CrWMn cold work die steel was analyzed

and DEFORM software was used to simulate the grinding force in high speed grinding processing of 9CrWMn cold work die steel.A series of high speed grinding experiments were conducted on a Computer Numerical Control(CNC) high speed grinding machine (BLOHM PROFIMAT MT-408) to measure grinding forces on line under different working conditions. It demonstrates that as the workpiece feed rate increases

the grinding forces especially the normal force increase nearly 45%. Both normal and tangential forces decrease with going up the wheel velocity and the normal force decreases nearly 33%. The cut depth has a larger effect on the grinding forces

especially the normal grinding force increases nearly 100%.The influence of processing parameters on the specific grinding energy was investigated. It shows that with increasing grinding depth and workpiece feed rate

specific grinding energy decreases obviously

in accordance with the size effect in grinding process.Moreover

with increasing the wheel velocity

the specific grinding energy increases. At last

the microtopographies of a workpiece surface before and after high speed grinding were compared. The experimental results are well consistent with simulation analysis results.

关键词

Keywords

references

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