硬质合金可转位刀片周边刃磨磨削力模型研究  

Research on Grinding Force Model for Peripheral Grinding of Cemented Carbide Indexable Inserts

作　　者：郑清 姚斌 蔡思捷 冯伟[2] ZHENG Qing;YAO Bin;CAI Si-jie;FENG Wei(School of Aerospace Engineering,Xiamen University,Xiamen Fujian 361101,China;School of Mechanical and Electrical Engineering,Henan University of Technology,Zhengzhou 450001,China)

机构地区：[1]厦门大学航空航天学院,福建厦门361101 [2]河南工业大学机电工程学院,郑州450001

出　　处：《组合机床与自动化加工技术》2020年第8期16-20,共5页Modular Machine Tool & Automatic Manufacturing Technique

基　　金：2018年智能制造新模式应用项目(工信部联装[2018]265号);河南省高等学校重点科研项目计划支持(20A460007)。

摘　　要：为了分析硬质合金磨削过程中的磨削力,提高可转位刀片周边刃磨质量,文章提出一种结合简化砂轮表面形貌的磨削力计算模型。该建模方法结合实际工艺参数,计算各磨粒轨迹互相干涉下的实际切深,基于硬质合金微观磨削力模型,计算刀片磨削时所受磨削力大小。与现有的端面磨建模方法不同在于不需要实验辩识有效磨粒数便可对周边刃磨磨削力进行预测,预测步骤更加简单方便。通过实验对文中提出的建模方法进行验证,磨削力预测误差在10%以内,模型精确有效。In order to analyze the grinding force in the grinding process of cemented carbide and improve the grinding quality around the indexable insert,this paper proposes a calculation model of the grinding force combined with simplifying the surface morphology of the grinding wheel.The modeling method combines the actual process parameters,and the actual cutting depth of each abrasive grain trajectory is calculated,based on the micro-grinding force model of the cemented carbide,the calculation of the grinding force is carried out.Different from the existing face grinding modeling method in that it is possible to predict the peripheral grinding force without experimentally identifying the effective number of abrasive grains,and the prediction step is simpler and more convenient.The modeling method proposed in this paper is verified by experiments.The prediction error of grinding force is within 10%,and the model is accurate and effective.

关 键 词：硬质合金 周边刃磨 可转位刀片 磨削力模型 

分 类 号：TH161[机械工程—机械制造及自动化] TG65[金属学及工艺—金属切削加工及机床]