爆炸焊接最小作用量原理分析

Analysis of principle of least action on explosive welding process

关键词:  爆炸焊接  结合界面  上限  下限

Key words:  explosive welding  bonding interface  upper limit  lower limit

摘要:

最小作用量原理是自然界的一条基本法则,也是物理学的最后规律.通过爆炸焊接的理论分析、界面测试和生产实践发现,爆炸焊接过程也遵循物理学"最小作用量原理",即以最小的装药量获得最佳的焊接界面.在复板和基板发生非弹性碰撞直至结合这一力学过程中,其"作用量"可认为是"复板和基板的结合能量".为了使界面结合能量为最小,在选取爆炸焊接工艺参数时,需遵循"装药厚度下限法则"和"基复板间隙上限法则"等原则,并优选"最低临界爆炸速度炸药",即可实现爆炸焊接过程"最小作用量原理",从而使爆炸焊接界面状态达到最佳.

Abstract:

The principle of least action,basic law of the nature and the final rule of the physics,was found to be followed by the explosive welding process by theoretical analysis and interface test. Namely the optimal welding interface can be obtained with the least explosive charge. The bonding energy of the interface can be looked upon the action on the course. To minimize the bonding energy,these rules must be followed such as the lower limit of explosive charge,the upper limit of span and the explosive of the lower critical explosion velocity. The principle of least action is achieved on the explosive welding process, and the bonding interface will be best.