【摘要】 针对工件在偏心条件下加工出的曲线为圆或心形线这一问题 ,对工件偏心对加工表面位置精度和形状精度的影响进行分析 ,指出在车削加工中 ,工件偏心将使加工表面 (外圆或孔 )产生与其它表面间同轴度位置误差和加工表面圆度、圆柱度形状误差 ;加工表面既不是一个圆 ,也不是心形线 .从而为提高车削加工精度提供了重要的理论依据 .更多还原

【Abstract】 It is put forward that the worked workpiece’s surface,which has some degree of eccentricity,is a circularity or a cardioid.On the basis of theoretical analysis, this paper puts forward a new conclusion: Because the eccentricity will make some position errors and shape errors in the process of turning, the workpiece’s surface is neither a circularity nor a cardioid.The conclusion will provide a very important theory foundation for enhancing processing accuracy.更多还原