随着摩托车、汽车、航空航天等加工制造行业的快速发展，对花键轴的需求不断

随着摩托车、汽车、航空航天等加工制造行业的快速发展，对花键轴的需求不断增加，花键轴的力学性能也不断提高。内花键轴是一种结构复杂的连接器。它具有结构紧凑、承载能力高、机械性能好等特点，具有广泛的实用需求和应用空间。在实际生产中，这种带台阶的内花键轴在机械切削过程中存在材料消耗大、生产效率低、机械性能差等缺陷;冷挤压工艺材料抗变形能力大，吨位大，加工设备不经济;热挤压工艺是一种高效率、低消耗、低要求的加工设备和产品机械化的良好加工方法。因此，对内花键轴的热挤压工艺进行研究，在实际生产中具有重要的理论意义。<br>基于材料的分析和花键轴的形状和大小,根据热处理的结构特点和技术要求,提出了三种不同的热处理方案,从两个方面进行了分析和比较的材料利用率和变形程度,最后确定技术方案,形成了花键轴的热处理空心空白是最好的;从花键轴建立空心坯料热处理。

随着摩托车、汽车、航空航天等加工制造行业的快速发展，对花键轴的需求不断增加，花键轴的力学性能也不断提高。内花键轴是一种结构复杂的连接器。它具有结构紧凑、承载能力高、机械性能好等特点，具有广泛的实用需求和应用空间。在实际生产中，这种带台阶的内花键轴在机械切削过程中存在材料消耗大、生产效率低、机械性能差等缺陷;冷挤压工艺材料抗变形能力大，吨位大，加工设备不经济;热挤压工艺是一种高效率、低消耗、低要求的加工设备和产品机械化的良好加工方法。因此，对内花键轴的热挤压工艺进行研究，在实际生产中具有重要的理论意义。<br>基于材料的分析和花键轴的形状和大小,根据热处理的结构特点和技术要求,提出了三种不同的热处理方案,从两个方面进行了分析和比较的材料利用率和变形程度,最后确定技术方案,形成了花键轴的热处理空心空白是最好的;从花键轴建立空心坯料热处理。

With the rapid development of motorcycle, automobile, aerospace and other processing and manufacturing industries, the demand for spline shaft is increasing, and the mechanical properties of spline shaft are also improving. Internal spline shaft is a kind of connector with complex structure. It has the characteristics of compact structure, high bearing capacity and good mechanical performance, and has a wide range of practical needs and application space. In the actual production, this kind of internal spline shaft with steps has defects such as large material consumption, low production efficiency and poor mechanical performance in the process of mechanical cutting; the cold extrusion process has large material deformation resistance, large tonnage and uneconomical processing equipment; the hot extrusion process is a high efficiency, low consumption and low requirements processing equipment and good processing method of product mechanization. Therefore, the research on the hot extrusion technology of internal spline shaft has important theoretical significance in the actual production.<br>Based on the analysis of materials and the shape and size of spline shaft, three different heat treatment schemes are put forward according to the structural characteristics and technical requirements of heat treatment. The utilization rate and deformation degree of materials are analyzed and compared from two aspects. Finally, the technical scheme is determined, and the hollow blank of heat treatment of spline shaft is the best; the hollow blank heat treatment of spline shaft is established.<br>