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我厂生产图1所示的蜗壳,形状比较复杂,材料是25钢,壁厚为45毫米。 以前我们从进口该产品的资料中看到,国外是用钢锭锻成φ820直径250厚度的坯料,然后在大型卧式车床上先加工内腔,再调头加工外形来达到图纸要求。这种工艺方法较落后,我们在新产品试制时,设计了一套比较简单的模具,在1000吨水压机上,进行加热冲压成形。但是图1中的φ416尺寸、φ192尺寸仍不能保证机加工尺寸要求,需要
I plant production shown in Figure 1, the volute, the shape is more complex, the material is 25 steel, wall thickness of 45 mm. We used to see the information from the import of the product to see that the foreign is the ingot forged into φ820 diameter 250 thickness of the blank, and then in the large horizontal lathe first processing cavity, and then adjust the shape of the head to meet the drawings requirements. This process is more backward, we in the trial of new products, the design of a relatively simple set of molds, 1000 tons of hydraulic press, heat stamping. However, in Figure 1 φ416 size, φ192 size still can not guarantee the machining size requirements, the need