论文部分内容阅读
传统车床主轴毛坯锻造工艺采用杆部拔长法,这种传统工艺在能源和材料上浪费较大,加工困难且生产效率低。为优化车床主轴毛坯锻造工艺,提出采用端部局部锻造法的新工艺对主轴法兰部分进行局部锻造成形:以厚壁无缝钢管为原始坯料,经过下料——管端局部加热——油压机端部聚料——最终模锻成形法兰。新工艺根据模锻成形选用的设备不同可以分为平锻工艺方案和摆动辗压工艺方案两种,对比分析两种方案的成形力和设备成本,优先采用摆动辗压工艺方案。通过对摆辗新工艺经济效益的定量计算发现,新工艺比传统工艺每年可节约成本192万元。研究结果表明,摆辗新工艺可有效降低成形力,提高产品组织性能,降低劳动强度,具有经济可行性。
Traditional lathe spindle blank forging process using the rod pull-out method, this traditional process in the energy and material waste larger, difficult processing and low productivity. In order to optimize the blank forging process of lathe spindle, a new process of end partial forging method was proposed to partially forge the flange part of the spindle. The thick-walled seamless steel pipe was used as raw material, Endstock - final swaged flange. The new technology according to die forging forming equipment used in different options can be divided into two kinds of flat forging process and swing rolling process, comparative analysis of the two programs of forming force and equipment costs, priority swing rolling process. Through the quantitative analysis of the economic benefits of the new process, it is found that the new process can save an annual cost of 1.92 million yuan compared with the traditional process. The research results show that the new technology can effectively reduce the forming force, improve the performance of products and reduce the labor intensity, which is economically feasible.