摘要
通过分析斜角切削的几何关系,得到了斜角切削参数和切削力系数之间的关系表达式,从而在理论上得到了铣刀参数和切削颤振之间的数学关系表达式.在此基础上,研究了相同铣削参数下铣刀螺旋角和法向前角对铣削稳定性的影响,绘制了不同铣刀参数下的轴向切深、径向切深和主轴转速的三维稳定性图.通过对不同参数下稳定性图的研究,发现随着螺旋角和法向前角的增加,铣削的稳定性逐渐增加.
By analyzing the geometrical relationship of oblique cutting, the relationship between the oblique cutting parameters and the milling force coefficients is formulized, and the mathematical expressions describing the relation- ship between the cutter parameters and the cutting chatter are theoretically deduced. Moreover, the effects of helix angle and normal rake angle on the milling stability in the same milling parameter conditions are investigated, and the three-dimension stability graphs of the axial cutting depth, the radial cutting depth and the spindle speed are plotted. It is found from the stability graphs that the milling stability improves with the increase of the helix angle and the normal rake angle.
出处
《华南理工大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2009年第2期29-34,共6页
Journal of South China University of Technology(Natural Science Edition)
基金
国家自然科学基金资助项目(50675122
50828501)
山东省自然科学基金资助项目(Z2007F03)
国家"863"高技术计划资助项目(2008AA042405)
关键词
斜角切削
螺旋角
法向前角
三维稳定性
oblique cutting
helix angle
normal rake angle
three-dimension stability
