中文摘要：

为了解决目前轴承套圈生产中普遍存在的材料利用率低、生产工序繁多、产品质量低等问题,提出一种轴承内外套圈毛坯的复合温挤压成形工艺和模具。该工艺采用一步复合温挤压成形出含有内外套圈毛坯的挤压件,然后利用两套冲裁模具将挤压件进行分离,得到所需尺寸的内外套圈毛坯。通过有限元模拟复合温挤压过程,结果表明采用上下压料卸料装置并施加合适的压紧力能获得到尺寸精度高、产品质量好的工件。

英文摘要：

In order to resolve the defects that exist in conventional manufacture of bearing inner and outer rings,such as low material utilization,too many work steps and low quality,a combined warm extrusion process and its die were put forward.An extrusion part could be obtained by combined warm extrusion in one step,and the bearing inner ring and outer ring could be obtained by two step blanking based on the extrusion part.Finite element method was used to analyze the combined warm extrusion process.The results show that an extrusion part with precise size and high quality can be obtained by the upper and lower clamping device and appropriate pressure.