Research Topics

1jDevelopment of forming processes of lightweight metals

  • 1 shot hot stamping of ultra-high strength steel parts
  • Improvement of formability in hot stamping
  • Warm and hot punching of ultra-high strength steel sheets using resistance heating
  • Hot stamping of titanium alloy sheets
  • Prevention of fracture in stretch flanging of ultra-high strength steel sheets
  • Prevention of wrinkling in shrinkage flanging of ultra-high strength steel sheets
  • Prevention of seizure in deep drawing and ironing of ultra-high strength steel sheets
  • Improvement of quality of sheared edge in punching of ultra-high strength steel sheets
  • Self-pierce riveting of high strength steel and aluminium alloy sheets
  • Mechanical clinching of high strength steel and aluminium alloy sheets
  • Prevention of seizure in ironing of aluminium alloy and stainless steel cups
  • Local thickening of steel wheel disk
  • Hot forging of aluminium alloy billet having die quenching
  • Cold deep drawing of magnesium alloy sheet
  • Improvement of springback in bending of ultra-high strength steel sheets using servo press

    2jDevelopment of forming processes of lightweight parts

  • Gas forming of aluminium alloy and quenchable steel tubes using resistance heating
  • Forming of tailor blanks having local thickening for stamping
  • Improvement of formability by oscillation of internal pressure in pulsating hydroforming of tube

    3jDevelopment of new forming processes

  • Automatic re-lubrication in forging of plates by load oscillation
  • Control of elastic deformation of dies in extrusion
  • One-piece press forming of automobile steel wheels without welding

    4jNumerical simulation of forming processes

  • Finite element simulation of forming processes
  • Micro-macro simulation of sintering of ceramic powder compact
  • Parallel processing of 3-D rigid-plastic finite element method using diagonal matrix