论文部分内容阅读
图1是110型柴油机的連杆鍛件图。这种連杆由連杆体和連杆盖組成,模鍛成形后用机械加工方法割开。我們由于受到设备能力的限制,不能够直接用模鍛的方法把它一次鍛成,只好先用自由鍛的方法,把棒料予鍛或一个近似連杆形状的毛坯,然后再在1吨的夹板錘上模鍛。 連杆的材料是45号钢;鍛件重6公斤;原来的坯料是用85×85×136毫米的棒料,材料消耗定额是7.7_1公斤。起先我們采用的鍛造工艺基本上是合理的,由原始棒料到完全鍛好共需6火、15道工序。經过我們研究后觉得在預鍛方面还有可改进的地方,而改进后的新工艺只需要5火、14道工序就鍛好一个連杆;
Figure 1 is a 110 diesel engine connecting rod forgings. The connecting rod is composed of a connecting rod body and a connecting rod cover, and is cut by a machining method after forming by swaging. Due to the limited capacity of the equipment, we can not directly forge the method of forging it once, but the first use of free forging method to forging a bar or a rough approximation of the shape of the link and then 1 ton Plywood hammer forging. Connecting rod material is 45 steel; forging weight 6 kg; the original blank is 85 × 85 × 136 mm bar, the material consumption is fixed at 7.7_1 kg. At first we used the forging process is basically reasonable, from the original bar to fully forging a total of 6 fire, 15 processes. After our research, I think there is still room for improvement in the pre-forging, and the new improved process only requires 5 fires, and the 14-step process forging a connecting rod;