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如图1所示为某型号柱塞泵局部柱塞孔的结构,从图中可以看出,该类型孔具有孔径小、尺寸精度要求高、表面粗糙度极小的特点。该工件材料为HT300,以往采用的常规加工方法是先钻铰,最后钳工采用手工研磨孔的方法将孔加工成形,此方法虽基本上能满足孔的加工精度要求,但生产效率低,质量稳定性差,不利于实现批量化生产,为解决上述问题,我们在加工此孔时采用自制挤压刀挤压孔的新工艺方法,经实践证明,经挤压加工后孔的加
As shown in Figure 1 for a certain type of piston pump piston plunger hole structure can be seen from the figure, this type of hole with a small aperture, high dimensional accuracy, surface roughness is extremely small. The workpiece material for the HT300, the conventional processing methods used in the past is to drill the hinge, the last fitters manual grinding hole hole processing and forming method, although this method can basically meet the processing requirements of the hole, but the production efficiency is low, the quality is stable Poor sex, is not conducive to achieving mass production, in order to solve the above problems, we use this new hole extrusion method squeeze the hole when the new technology, proven by practice, the hole after extrusion processing plus