Low Velocity of Detonation Explosive Welding (LVEW) Process for Metal Joining,Propellants, Explosives, Pyrotechnics

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Low Velocity of Detonation Explosive Welding (LVEW) Process for Metal Joining
Propellants, Explosives, Pyrotechnics ( IF 1.7 ) Pub Date : 2020-07-31 , DOI: 10.1002/prep.202000019
Bir Bahadur Sherpa _{1,

2,

3} , Pal Dinesh Kumar ₂ , Abhishek Upadhyay ₂ , Sandeep Kumar ₂ , Arun Agarwal ₂ , Sachin Tyagi _{1,

3}

Affiliation

In this research work, low velocity of detonation (VoD) explosive welding process (LVEW) is designed and developed. For this, a unique low VoD explosive mixture (LVE‐1) is prepared which consists of a 50/50 ratio of common salt and trimonite‐1. The velocity of detonation of the prepared explosive mixture was measured experimentally using a pin‐oscilloscopic technique and a high‐speed streak camera. The process introduced in this work is applied to copper/low carbon steel and aluminium/low carbon steel joints to assess its feasibility. The explosive weldability window was plotted and flyer plate velocity was selected to achieve good quality joining. The analysis of the joints was carried out using the micro‐hardness tester and optical microscope. Experiments were carried out for establishing good quality bonding and defect‐free bi‐metallic plates that can be widely used in aerospace, defence as well as in industrial applications.

中文翻译：

金属连接的低速爆炸爆炸焊接（LVEW）工艺

在这项研究工作中，设计并开发了低爆速（VoD）爆炸焊接工艺（LVEW）。为此，准备了一种独特的低VoD炸药混合物（LVE-1），该混合物由50/50的食盐和三聚体-1组成。制备的炸药混合物的爆炸速度是使用针示波器技术和高速条纹照相机通过实验测量的。在这项工作中介绍的过程适用于铜/低碳钢和铝/低碳钢的接头，以评估其可行性。绘制爆炸性可焊性窗口，并选择飞板速度以实现高质量的连接。接头的分析是使用显微硬度计和光学显微镜进行的。

更新日期：2020-10-05

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