考虑前后刀面及刃钝圆摩擦的铣削力模型  

Milling Force Prediction Model Which Considering Frictions of Rake Rear and Blunt Circular Faces

作　　者：张强 卓旭 ZHANG Qiang;ZHUO Xu(No.208 Research Institute of China Ordnance Industries,Beijing 102202,China)

机构地区：[1]中国兵器装备集团兵器装备研究所,北京102202

出　　处：《兵器装备工程学报》2019年第5期190-194,共5页Journal of Ordnance Equipment Engineering

摘　　要：为了更加准确地预测直角铣削力,提高工艺制定、试切、优化效率,本文考虑铣刀刃与工件之间的摩擦影响,建立了铣削力预测模型。模型考虑了后刀面摩擦区、切削刃钝圆摩擦区、前刀面摩擦区的接触特性。通过对20Cr2Ni4钢进行直角铣削,用三维测力仪进行测试,验证了模型的准确性。并研究了考虑摩擦的影响下,切削力与刀具前角、切削速度和切削深度之间的规律。In order to predict the orthogonal milling force more accurately,and improve the efficiency of process planning,a milling force prediction model has been established.The friction effects between the tool and workpiece have been considered.The friction areas were mainly including flank face,blunt circular and rake face.The accuracy of the model was verified by cutting 20Cr2Ni4 steel,and the cutting force was tested by three-dimensional dynamometer.The relationship between cutting force and rake angle,milling speed,milling cutting depth were researched in detail.This model provides theoretical support for the selection of process parameters.

关 键 词：切削力模型 直角铣削 摩擦区 20CR2NI4钢 

分 类 号：TG54[金属学及工艺—金属切削加工及机床]