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內燃机和小型蒸气机的連杆一般是用模鍛錘鍛造的。但是有很多厂沒有这种設备,只有自由鍛錘。在自由鍛錘上采用胎模鍛造法来鍛造連杆,可以达到設計上要求的質量。这方面的工作我們曾經試作过,現在把我們的体会和經驗介紹如下,供大家参考。鍛模的設計——連杆(图1)是整体鍛造的。大端盖和連杆体的接触面应該留有一定的間隙,作为鋸床或銑刀的切口。如果沒有間隙或一定量的切口,大端圆孔就要用兩个圆心,并且根据切口的大小,在
The connecting rods of internal combustion engines and small steam engines are generally forged by forging hammers. But many factories do not have this equipment, only free forging hammer. The use of tire forging method to forging the connecting rod in the free forging hammer, to achieve the desired quality of the design. We have tried this work before, and now we introduce the experience and experience as follows, for your reference. Forging die design - connecting rod (Figure 1) is a whole forging. Large cover and connecting rod body contact surface should leave a certain gap, as sawing machine or cutter incision. If there is no gap or a certain amount of incision, the big end of the hole to use two center, and according to the size of the incision in