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在对加工件进行分析与试验的基础上,采取了相应的措施,特别是减振,使工件的表面光洁度提高了2～3级,达到▽9,,同时也有效地提高了加工精度。一、对工件分析工件的结构及尺寸如图(?)所示。 1.材料工件系用2Cr13不锈钢精铸而成,调质后的硬度为HRC19～26。虽然材料的强度及硬度不高,但因其收缩率及冲击值较高,切屑不易被切离,切削抗力较大;又由于
On the basis of the analysis and experiment of the machined parts, corresponding measures are taken, especially the vibration damping, which improves the surface finish of the workpieces by 2 ~ 3 grades and reaches ▽ 9, and also improves the machining precision effectively. First, the analysis of the workpiece The structure and size of the workpiece shown in Figure (?). 1. The material workpiece is made of 2Cr13 stainless steel, the hardness after quenching and tempering is HRC19 ~ 26. Although the strength and hardness of the material is not high, but because of its high shrinkage and impact value, the chip is not easy to be cut off, cutting resistance larger; and because of