CAJ | 학술논문

对平面后角型麻花钻进行了三维建模,并对主切削刃刃口进行了强化设计（钝圆或负倒棱）,得到了给定刃磨参数下麻花钻的计算机仿真模型。在此基础上,运用金属成形有限元软件DEFORM3D对硬质合金麻花钻钻削过程的轴向力和扭矩进行了研究,研究结果显示,刃口负倒棱设计方法在减小刀具钻削力及扭矩方面优于刃口钝圆设计方法。最后进行了钻削验证试验,对合理负倒棱参数的选取进行了探讨。
대평면후각형마화찬진행료삼유건모,병대주절삭인인구진행료강화설계（둔원혹부도릉）,득도료급정인마삼수하마화찬적계산궤방진모형。재차기출상,운용금속성형유한원연건DEFORM3D대경질합금마화찬찬삭과정적축향력화뉴구진행료연구,연구결과현시,인구부도릉설계방법재감소도구찬삭력급뉴구방면우우인구둔원설계방법。최후진행료찬삭험증시험,대합리부도릉삼수적선취진행료탐토。
Three dimensional modeling was conducted for twist drills with plane clearance face herein.The main cutting edges were designed with rounding or negative chamfering for strengthening purpose,and a computer simulation model with given grinding parameters was obtained.Emulation study of the thrust force and torque generated by the drill was performed by using FEM analysis software DEFORM 3D results show that the negative chamfering method is superior to the rounding method in reducing the thrust force and torque,and tests were carried out.The study is benefit to the reasonable selection of negative chamfer parameters.