摘要
针对圆刀片磨削加工后表面质量不均匀的现象,研究了硬质合金圆刀片刃面磨削加工工艺中砂轮倾角和砂轮粒度对刃面质量影响。通过运动学分析,建立了切削表面纹理与切削工艺参数的数学关联模型,揭示切削参数对切削模式、表面纹理的影响规律。利用光学三维形貌仪测量了不同位置的刃面微结构及面粗糙度,对比了双区域磨削、单区域磨削和砂轮粒度对表面形貌的影响。结果表明,单区域磨削的面粗糙度具有更好一致性,多区域磨削具有更低的面粗糙度,对于精加工选用单区域磨削可有效也提高圆刀片表面质量。
Focused on the uneven surface quality of the round blade cutting edge grinding,the influence of the wheel inclination Angle and the grain size of the wheel on the quality of the blade surface in the grinding process were studied.Through kinematic analysis,the mathematical correlation model between cutting surface texture and cutting parameters is established,and the influence of cutting parameters on cutting mode and surface texture is revealed.Based on the microstructure and surface roughness of the blade cutting edge measurements with the optical 3D profilometer,the effects of dual-region grinding,single-region grinding,and cutting point density on surface morphology were compared.The results show that single-region grinding has a better surface consistency while dual-region grinding has better roughness.The surface roughness difference decreases with the decrease of grinding wheel size.Single-region grinding can effectively improve the surface quality of the round blade in the finishing stage.
作者
钱超
姚振强
QIAN Chao;YAO Zhen-qiang(School of Mechanical Engineering,Shanghai Jiao Tong University,Shanghai 200240,China)
出处
《组合机床与自动化加工技术》
北大核心
2021年第6期45-48,52,共5页
Modular Machine Tool & Automatic Manufacturing Technique
关键词
亚微细硬质合金
圆刀片
表面微结构
端面磨削
面粗糙度
submicron cemented carbide
round blade
face grinding
surface microstructure
surface roughness
