The numerical simulation of hot die forming process for upper core plate stock in railway was done.
对铁路用上心盘热模压成形过程进行了数值模拟分析，得到了上心盘成形过程的应力场、应变场。
2
The forming technology oft he upper body center plate in hot die forging and the characteristic of the die structure have been introduced with the analysis on the forming process.
从分析上心盘的成形过程出发，介绍了上心盘热模压成形工艺及模具特点。
3
The paper introduces the forming technology of the front upperplate of refrigerator, and expounds some applied skill on the die design.