PCBN磨粒对In625镍基合金高速磨削力影响分析  

Analysis of the Effect of PCBN Grit on the High-Speed Grinding Force of In625 Nickel-Based Alloy

作　　者：许桂珍 Xu Guizhen(Mechanical Engineering Department,Luohe Institute of Technology,Luohe Henan 462000,China)

机构地区：[1]漯河技师学院机械工程系,河南漯河462000

出　　处：《机械管理开发》2024年第1期46-47,50,共3页Mechanical Management and Development

摘　　要：为了提高对镍基合金加工性能的认识,设计了以PCBN磨粒对In625镍基合金进行高速磨削的测试方案,通过MV-40进行In625磨粒高速磨削实验,分析了磨损程度的变化情况。研究结果表明:当磨削次数增加后形成更大磨削力,磨削力对PCBN磨粒磨削刃磨损程度也存在明显作用,磨粒受到了更大的磨削力作用,造成磨损破碎,引起磨削力减小。逐渐提高磨削次数时,磨削力比先升高再降低,磨削效率先减小再上升。提高磨削深度后,形成了更大的磨削力作用,造成了更严重的磨粒磨损,并生成了更多微磨削刃。In order to improve the understanding of the machining performance of nickel-based alloys,the design of PCBN grits on In625 nickel-based alloy high-speed grinding test programme,through the MV-40 high-speed grinding experiments on In625 grits,and analyse the changes in the degree of wear.The results show that when the number of grinding times is increased,a larger grinding force is formed,and the grinding force also has an obvious effect on the degree of wear of the cutting edge of the PCBN grits,and the grits are subjected to a larger grinding force,which results in wear fragmentation and causes a reduction in the grinding force.When the number of grinding is gradually increased,the grinding force ratio first increases and then decreases,and the grinding eficiency first decreases and then increases.After increasing the depth of grinding,a larger grinding force was formed,which caused more serious abrasive wear and more micro grinding edges were generated.

关 键 词：磨粒 磨削加工 参数优化 镍基合金 磨削力 

分 类 号：TH137[机械工程—机械制造及自动化]