论文部分内容阅读
汽车后桥半轴杆部横截面积与法兰盘部截面积相差较大(其面积比为1:14),形状较复杂,通常用较大的圆钢(如φ80mm)在空气锤上用胎模锻造,先用模具卡出法兰头部的坯料,接着拔长杆部和花键部分。这种工艺的缺点是工人劳动强度大,要求操作工技术熟练,材料消耗多,且经切削加工的金属表面的纤维被切断,降低了机械性能。针对上述问题.我们经过一系列试验研究,直接采用φ50mm圆钢在100t油压机上热挤压出端部。经多年生产实践表明,用热挤压工艺是简易可行且卓有成效的。 1.CA-10B后桥半轴的热挤压工艺
Rear axle axle axle cross-sectional area and the flange section of a large difference (the area ratio of 1:14), the shape is more complex, usually with a larger round bar (such as φ80mm) on the air hammer with Tire forging, the first use of the mold out of the flange head blank, and then pull the long rod and spline parts. The disadvantage of this process is that workers are labor-intensive, require skilled technicians, consume more material, and the machined metal surface fibers are severed, reducing mechanical properties. In response to the above problem, we through a series of pilot studies, the direct use of φ50mm bar in the 100t hydraulic press hot extrusion end. After years of production practice shows that the hot extrusion process is simple and feasible and fruitful. 1.CA-10B rear axle semi-shaft hot extrusion process