In view of the precision problem of the forging parts of train axles occurred in the course of forging on the rapid forging hydraulic press, the cause of the problem was analyzed.

• 针对列车车轴在快速锻造液压机上锻造时出现的锻件精度问题,分析了问题出现的原因,用图示的方法揭示出问题所在,简单明了。