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Micro-hydromechanical deep drawing of metal cups with hydraulic pressure effects

Journal Article


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Abstract


  • Micro-metal products have recently enjoyed high demand. In addition, metal microforming has drawn increasing attention due to its net-forming capability, batch manufacturing potential, high product quality, and relatively low equipment cost. Micro-hydromechanical deep drawing (MHDD), a typical microforming method, has been developed to take advantage of hydraulic force. With reduced dimensions, the hydraulic pressure development changes; accordingly, the lubrication condition changes from the macroscale to the microscale. A Voronoi-based finite element model is proposed in this paper to consider the change in lubrication in MHDD according to open and closed lubricant pocket theory. Simulation results agree with experimental results concerning drawing force. Changes in friction significantly affect the drawing process and the drawn cups. Moreover, defined wrinkle indexes have been shown to have a complex relationship with hydraulic pressure. High hydraulic pressure can increase the maximum drawing ratio (drawn cup height), whereas the surface finish represented by the wear is not linearly dependent on the hydraulic pressure due to the wrinkles.

UOW Authors


  •   Luo, Liang (external author)
  •   Jiang, Zhengyi
  •   Wei, Dongbin (external author)
  •   Wang, Xiaogang (external author)
  •   Zhou, Cunlong (external author)
  •   Huang, Qingxue (external author)

Publication Date


  • 2018

Citation


  • Luo, L., Jiang, Z., Wei, D., Wang, X., Zhou, C. & Huang, Q. (2018). Micro-hydromechanical deep drawing of metal cups with hydraulic pressure effects. Frontiers of Mechanical Engineering, 13 (1), 66-73.

Scopus Eid


  • 2-s2.0-85031894570

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=2194&context=eispapers1

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers1/1192

Number Of Pages


  • 7

Start Page


  • 66

End Page


  • 73

Volume


  • 13

Issue


  • 1

Place Of Publication


  • China

Abstract


  • Micro-metal products have recently enjoyed high demand. In addition, metal microforming has drawn increasing attention due to its net-forming capability, batch manufacturing potential, high product quality, and relatively low equipment cost. Micro-hydromechanical deep drawing (MHDD), a typical microforming method, has been developed to take advantage of hydraulic force. With reduced dimensions, the hydraulic pressure development changes; accordingly, the lubrication condition changes from the macroscale to the microscale. A Voronoi-based finite element model is proposed in this paper to consider the change in lubrication in MHDD according to open and closed lubricant pocket theory. Simulation results agree with experimental results concerning drawing force. Changes in friction significantly affect the drawing process and the drawn cups. Moreover, defined wrinkle indexes have been shown to have a complex relationship with hydraulic pressure. High hydraulic pressure can increase the maximum drawing ratio (drawn cup height), whereas the surface finish represented by the wear is not linearly dependent on the hydraulic pressure due to the wrinkles.

UOW Authors


  •   Luo, Liang (external author)
  •   Jiang, Zhengyi
  •   Wei, Dongbin (external author)
  •   Wang, Xiaogang (external author)
  •   Zhou, Cunlong (external author)
  •   Huang, Qingxue (external author)

Publication Date


  • 2018

Citation


  • Luo, L., Jiang, Z., Wei, D., Wang, X., Zhou, C. & Huang, Q. (2018). Micro-hydromechanical deep drawing of metal cups with hydraulic pressure effects. Frontiers of Mechanical Engineering, 13 (1), 66-73.

Scopus Eid


  • 2-s2.0-85031894570

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=2194&context=eispapers1

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers1/1192

Number Of Pages


  • 7

Start Page


  • 66

End Page


  • 73

Volume


  • 13

Issue


  • 1

Place Of Publication


  • China