【摘要】 通过对正交车铣加工的数学建模,建立了正交车铣表面形貌的计算机仿真系统.利用该系统分别讨论了刀刃角、偏心量、进给量和转速比等因素对表面形貌的影响,得到以下结论:刀刃角为0°时,正交车铣加工表面为一正棱柱;刀刃角大于0°时,采用偏心加工的表面形貌比较好;采用合理的进给量,可以取得较好的表面形貌和较低的表面粗糙度;转速比越大,表面形貌越平坦,表面粗糙度越小.更多还原

【Abstract】 A computer simulation system for machined surface texture in turn-milling was developed based on a mathematical model of the turn-milling process. With the simulation system, the quantitative analysis of machined surfaces and the relationship between the machined surface texture and tool angle, eccentricity, axial feed rate or ratio of rotational speed, were discussed. It was concluded that: ① the shape of machined surface is a regular prism when tool angle is 0°; ② eccentric machining can generate better surface texture than non-eccentric machining, when tool angle is greater than 0°; ③ better surface texture is obtained with rational axial feed rate; ④ the surface texture becomes flat and the surface roughness declines when the ratio of rotational speed increases.更多还原