微铣削Ti-48Al-2Cr-2Nb合金实验研究  

Experimental Study on Micro - milling of Ti-48Al-2Cr-2Nb Alloy

作　　者：马轩 王志勇[1,2] 董昊 马鑫鑫 杜金金 MA Xuan;WANG Zhiyong;DONG Hao;MA Xinxin;DU Jinjin(School of Mechanical Engineering,Yanshan University,Qinhuangdao Hebei 066004,China;Hebei Heavy Intelligent Manufacturing Equipment Innovation Center,Qinhuangdao Hebei 066004,China)

机构地区：[1]燕山大学机械工程学院,河北秦皇岛066004 [2]河北省重型智能制造装备技术创新中心,河北秦皇岛066004

出　　处：《机床与液压》2023年第21期107-111,共5页Machine Tool & Hydraulics

基　　金：河北省科学技术研究与发展计划科技支撑计划项目(21372004D)。

摘　　要：新型优质γ-TiAl基合金Ti-48Al-2Cr-2Nb具有低密度、高比强度和良好的高温力学性能,在航空航天和精密微小件制造领域拥有广泛的应用前景。为研究该材料的微铣削性能,采用直径0.8 mm的双刃硬质合金微铣刀进行四因素五水平正交试验,研究主轴转速、进给速度、铣削深度和铣刀螺旋角对微铣削加工毛刺和粗糙度的影响。结果表明:主轴转速和铣削深度是影响顶端毛刺的重要因素,铣刀螺旋角对槽底表面粗糙度影响最为显著,其结果为γ-TiAl基合金的微尺度铣削加工提供理论依据。The new high-qualityγ-TiAl based alloy Ti-48Al-2Cr-2Nb with low density,high specific strength and good high temperature mechanical properties has a broad application prospect in aerospace and precision micro parts manufacturing field.In order to study the micro-milling performance of the material,a four-factor and five-level orthogonal experiment was carried out by using a double-edged cemented carbide micro-milling cutter with a diameter of 0.8 mm.The effects of spindle speed,feed speed,milling depth and milling cutter spiral angle on the burr and roughness of micro-milling were studied.The results show that the spindle speed and milling depth are important factors affecting the top burr,and the influence of the milling cutter spiral angle on the groove bottom surface roughness is the most obvious.The results provide a theoretical basis for the micro-scale milling ofγ-TiAl based alloy.

关 键 词：Γ-TIAL基合金 微铣削 毛刺 表面粗糙度 

分 类 号：TG54[金属学及工艺—金属切削加工及机床]