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Experimental and theoretical study of dynamic bend angle in the explosive welding process

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Abstract

Dynamic bend angle (β) is an important parameter that should satisfy the range defined by the weldability window for successful joining in the explosive welding process. In this manuscript, we studied the dynamic bend angle (β) for the newly developed low velocity of detonation explosive welding (LVEW) process theoretically and then experimentally with the help of flash X-ray radiography (FXR) technique. The FXR system captured the real-time image of the event where proper explosive welding process with clear flight shape and appropriate collision bend angle was observed. The FXR results were in good agreement with numerically calculated β values and demonstrated the suitability of LVEW process for joining of dissimilar metal plates. This was further justified by phased array-based ultrasonic testing (PAUT) results where complete bonding area with slight non-bonded area was observed across the edges of the welded metal plate.

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Acknowledgement

The support from the Terminal Ballistics Research Laboratory is highly acknowledged. Authors are very thankful to Dr Manjit Singh, Director, TBRL, Sec 30, Chandigarh, all the scientists of Zone-IV, EED, M.T., and Workshop of TBRL for their valuable support.

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Authors and Affiliations

  1. Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India

    Bir Bahadur Sherpa & Sachin Tyagi

  2. DRDO-Terminal Ballistics Research Laboratory (TBRL), Sector-30, Chandigarh, 160030, India

    Bir Bahadur Sherpa, Pal Dinesh Kumar, Abhishek Upadhyay, Sandeep Kumar & Arun Agarwal

  3. CSIR-Central Scientific Instruments Organisation (CSIO), Sector-30, Chandigarh, 160030, India

    Bir Bahadur Sherpa & Sachin Tyagi

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  1. Bir Bahadur Sherpa
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  2. Pal Dinesh Kumar
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  4. Sandeep Kumar
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Correspondence to Bir Bahadur Sherpa.

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Sherpa, B.B., Kumar, P.D., Upadhyay, A. et al. Experimental and theoretical study of dynamic bend angle in the explosive welding process. Trans Indian Inst Met 74, 511–519 (2021). https://doi.org/10.1007/s12666-021-02189-7

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  • DOI: https://doi.org/10.1007/s12666-021-02189-7

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