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Effect of Ultrasonic Vibration on Deformation in Micro-blanking Process with Copper Foil

  • Metallic materials
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Journal of Wuhan University of Technology-Mater. Sci. Ed. Aims and scope Submit manuscript

Abstract

Effect of ultrasonic vibration on deformation in micro-blanking was investigated with copper foils of different grain sizes using a developed device. It is found that maximum shearing strength is decreased by ultrasonic vibration, and this effect becomes bigger for coarse grain than that for fine grain, which can be attributed to acoustic softening effect considering the absorbed acoustic energy. Surface roughness Ra of smooth zone decreases for the polishing effect of vibration at the lateral contact surface. When ultrasonic vibration is applied, the sheared deformation area becomes relatively narrow, and it leads to the reduction of radius of rollover. The analysis of cross section in sheared deformation area shows that the crack initiation is inhabited for the existence of acoustic softening, and the proportion of smooth zone is increased. Also, angle of crack propagation becomes smaller because of periodic strain, and the angle of facture surface is decreased. As a result, the quality of micro-sheet parts is improved by applying ultrasonic vibration.

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Authors and Affiliations

  1. National Key Laboratory for Precision Hot Processing of Metals, Harbin Institute of Technology, Harbin, 150001, China

    Chunju Wang  (王春举), Yang Liu, Shengxiang Wan, Bin Guo, Debin Shan & Bo Zhang

  2. Key Laboratory of Microsystems and Microstructures Manufacturing (HIT), Ministry of Education, Harbin, 150080, China

    Chunju Wang  (王春举), Bin Guo & Debin Shan

  3. School of Mechanical and Electric Engineering, Soochow University, Suzhou, 215006, China

    Chunju Wang  (王春举)

Authors
  1. Chunju Wang  (王春举)
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  2. Yang Liu
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  3. Shengxiang Wan
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  4. Bin Guo
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  5. Debin Shan
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  6. Bo Zhang
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Corresponding author

Correspondence to Chunju Wang  (王春举).

Additional information

Funded by the National Natural Science Foundation of China (No.51635005, 51875128, and 51375113) and the Fundamental Research Funds for the Central Universities (No. HIT.BRETIII.201404)

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Wang, C., Liu, Y., Wan, S. et al. Effect of Ultrasonic Vibration on Deformation in Micro-blanking Process with Copper Foil. J. Wuhan Univ. Technol.-Mat. Sci. Edit. 34, 404–409 (2019). https://doi.org/10.1007/s11595-019-2066-2

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  • DOI: https://doi.org/10.1007/s11595-019-2066-2

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