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图1所示的零件生产批量较大(1万件以上),材料为纯铝,其尺寸精度要求较高,我们采用冷轧加工方法,使产品达到了生产要求。轧轮(见图2)的材料为45钢,淬火硬度为HRC 50～55。轧槽的表面粗糙度Ra 0.4((?)9),其余的表面粗糙度为Ra 3.2((?)6)。A_1、A_2、A_3分别粗加工、半精加工和精加工轧槽。为保证达到2.4_(-0.05)~0mm尺寸,所以A_3槽的精度要高一些。影响这个尺寸的主要因素是槽深H及半角α
Figure 1 shows a large number of parts production (more than 10,000), the material is pure aluminum, the higher dimensional accuracy, we use cold-rolled processing methods, so that products meet the production requirements. The material of the wheel (see Figure 2) is 45 steel and the quenching hardness is HRC 50-55. The surface roughness Ra 0.4 ((?) 9), the remaining surface roughness Ra 3.2 ((?) 6). A_1, A_2, A_3 roughing, semi-finishing and finishing groove. To ensure that 2.4 _ (- 0.05) ~ 0mm size, so A_3 slot higher precision. The main factor affecting this size is the groove depth H and a half angle α