摘要
通过对TC4钛合金进行侧铣加工,采用正交设计方法研究了硬质合金立铣刀侧刃几何参数对切削力和表面粗糙度的影响,用极差法分析了刀具几何参数对铣削力的影响;并以最小表面粗糙度为目标,采用田口法对刀具几何参数进行了优选。结果表明:螺旋角对铣削力的影响最大,对F_x、F_z,C形刃宽度影响次之,C形刃角度的影响最小;对于F_y,C形刃角度次之,C形刃宽度的影响最小;当螺旋角为25°、C形刃宽度为0.2mm、角度为-25°时可获得最小表面粗糙度。
Though the flank milling test on TC4 titanium alloy,the influence law of solid carbide end mill side edge on cutting force and surface roughness was analyzed by the orthogonal design method. The influence of tool geometry param- eters on cutting force has been analyzed with the range method. With the goal of the minimum surface roughness, the optimi- zation of the cutting geometry parameters has been conducted with the Taguchi method. The results show that helix angle has the biggest impact on the cutting force. For Fx and Fz, the impact of the width of C shape edge is less than helix angle, and the angle of C shape edge is the smallest. For Fy, the impact of the angle of C shape edge is the second, and then is the width of C shape-edge. When the helix angle is 25° ,the width of C shape edge is 0.2mm and the angle of C shape edge is -25° ,the minimum surface roughness can be obtained.
出处
《工具技术》
北大核心
2017年第8期30-33,共4页
Tool Engineering
基金
国家自然科学基金(51275168)
湖南省自然科学基金(2015JJ5028)
关键词
钛合金
C形刃
几何参数优化
铣削力
表面粗糙度
titanium alloy
C shape edge
geometric parameter optimization
cutting force
surface roughness
