双立式爆炸焊接R-δ型可焊性窗口
R-δ-type weldability window of double vertical explosive welding
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摘要: 针对双立式爆炸焊接新方法的爆轰驱动特点,通过研究双立式爆炸焊接条件下的焊接下限、焊接上限、临界起爆厚度、临界碰撞角和临界复板厚度等可焊性边界条件,构建了一种静态参数下的双立式爆炸焊接R-δ型可焊性窗口;该窗口综合反映了爆炸焊接中的复板特性和炸药特性两大焊接参数,所建立的铜、不锈钢、铝合金等材料的双立式爆炸焊接R-δ型可焊性窗口可直接运用于工程实践中;根据双立式爆炸焊接R-δ型可焊性窗口设置的15 mm超低药量试验下的304L/Q235b复合板实现了高质量的微小波状结合,说明该窗口可以作为确定双立式爆炸焊接工艺参数的依据.Abstract: Based on the detonation characteristics in a new double vertical explosive welding process, the R-δ-Type weldability window of double vertical explosive welding with static parameters is established, by studying the boundary conditions including, lower limit, upper limit, critical initiation thickness, critical collision angle, the critical plate thickness, etc. The R-δ-type weldability window reflects the relevance between the material properties and explosive characteristics, which are the two most important welding parameters of explosive welding. The R-δ-type weldability window for copper, stainless steel, aluminum and other materials can be directly utilized in engineering practice. A welding experiment between 304L and Q235b has been done with the ultra-low charge of 15 millimeter thickness based on the R-δ-type weldability window for double vertical explosive welding. The bonding quality of 304L/Q235b composites after welding is good with small wavy combination on the interfaces, which indicates that the proposed window can be used to determine the process parameters of double vertical explosive welding.
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Keywords:
- explosive welding /
- weldability window /
- double vertical method /
- R-δ-type
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