在毛主席革命路线的指引下,我国汽车与拖拉机的生产获得了迅速发展。但是原有的车轮合成(轮辐与轮辋合成)焊接工艺远远赶不上形势发展的需要。从一九七三年起,我们进行了一系列的试验研究,终于完成了两套车轮合成全自动焊接设备的试制。生产实践证明:轮辐与轮辋合成采用四机头药芯焊丝CO_2气体保护自动焊接(单面焊)是合适的。车轮经过以焊缝开裂为标准的旋转弯曲疲劳强度试验,其平均寿命达40万次以上,超过目前国内生产的车轮合成焊缝平均寿命水平,为我国车轮合成焊接自动化开创了一条新的途径。一、焊接方案的选定我们在总结过去制造的几套多头CO_2气体保护焊自动线经验的基础上,研究分析了上海汽车钢圈厂需要在一台焊机中能 Under the guidance of Chairman Mao’s revolutionary line, the production of automobiles and tractors in our country has witnessed rapid development. But the original wheel synthesis (spoke and rim synthesis) welding process is far behind the development needs of the situation. Since 1973, we conducted a series of pilot studies and finally completed the trial production of two sets of fully automatic welding equipment for wheel assembly. Production practice has proved that: Spoke and rim synthesis using four-head flux cored wire CO_2 gas automatic welding (single-sided welding) is appropriate. The wheel passed the bending bending fatigue test with the standard of weld cracking as the standard, the average life expectancy reached more than 400,000 times, which surpassed the average domestic life span of synthetic wheel made in China and opened a new avenue for the welding automation of wheel assembly in our country. First, the selection of welding programs We made in the past to sum up the manufacture of several sets of long CO_2 gas arc welding automatic line based on the experience of research and analysis of the Shanghai Automotive Rim Factory needs in a welder