Present status and development of precisionblanking technique domestic and abroad have been introduced with discussion about development tendency of the technique.
介绍了国内外精密冲裁技术的现状，探讨了未来的发展趋势。
2
Precisionblanking die structures that can be used in forming equipment of general-purpose as well as technology parameters for main structure parts are designed. After experiment, effect is perfect.
分析精冲工艺的成形特点，介绍在通用设备上使用精冲模具以及该模具的主要结构零件和技术参数。
3
The precision of present blanking method is very low, the automation degree is not high.