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Volume 34 Issue 2
Apr 2020
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Chinese Journal of High Pressure Physics  > 2020  >  34(2): 025203.
MIAO Guanghong, MA Leiming, LI Xuejiao, AI Jiuying, ZHAO Wenhui, MA Honghao, SHEN Zhaowu. Effect of Charge Mode on Interface Wave of Copper/Steel Explosive Welding and Wave Formation Mechanism[J]. Chinese Journal of High Pressure Physics, 2020, 34(2): 025203. doi: 10.11858/gywlxb.20190844
Citation: MIAO Guanghong, MA Leiming, LI Xuejiao, AI Jiuying, ZHAO Wenhui, MA Honghao, SHEN Zhaowu. Effect of Charge Mode on Interface Wave of Copper/Steel Explosive Welding and Wave Formation Mechanism[J]. Chinese Journal of High Pressure Physics, 2020, 34(2): 025203. doi: 10.11858/gywlxb.20190844
shu

Effect of Charge Mode on Interface Wave of Copper/Steel Explosive Welding and Wave Formation Mechanism

doi: 10.11858/gywlxb.20190844
  • 1.

    State Key Laboratory of Mining Response and Disaster Prevention and Control in Deep Coal Mines, Anhui University of Science and Technology, Huainan 232001, Anhui, China

  • 2.

    School of Mechanics and Optoelectronics Physics, Anhui University of Science and Technology, Huainan 232001, Anhui, China

  • 3.

    School of Civil Engineering and Architecture, Anhui University of Science and Technology, Huainan 232001, Anhui, China

  • 4.

    School of Chemical Engineering, Anhui University of Science and Technology, Huainan 232001, Anhui, China

  • 5.

    CAS Key Laboratory of Mechanical Behavior and Design of Materials, University of Science and Technology of China, Hefei 230027, Anhui, China

  • Received Date: 08 Oct 2019
  • Rev Recd Date: 11 Nov 2019
    Abstract
  • In order to improve the quality of explosive welding and to solve the problem of high noise and low efficiency, Cu is selected as the flyer plate and Q235 steel is used as the base plate. The LS-DYNA software and the smoothed particle hydrodynamics (SPH) method are used to design the uniform distribution and the ladder distribution scheme, and the effect of the nitrate explosive on the explosive welding interface wave is studied. The results of the uniform distribution show that the collision pressure gradually increases along the detonation direction; the more amount of explosive, the greater the collision pressure and the higher the interface wave shape . In the ladder distribution scheme, four schemes are designed by changing the height of the initiation and the end of the explosive. The results show that the ladder distribution can eliminate the uneven phenomenon of the interface wave in the explosion welding, and keep the size of interface waveform consistent, and the amount of explosives will be saved. The waveform is best when the height of the initiation and the end of detonation is 67.2 mm and 42.0 mm, respectively. By studying the formation process of interface wave, the SPH results of formation process of interface wave simulated is in good agreement with the jet indentation mechanism, which shows the effectiveness of the jet indentation mechanism to explaining the formation process of interface wave.

     

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