Materials Korea A comprehensive. Materials research institute leading in materials technology.

Materials Processing Innovation Research Division

Materials Processing Innovation Research Division

Head of Department
Kim, Daeyong

Department Introduction

Materials Deformation Department is focusing our efforts to create innovative forming technology and to rationalize forming processes based on the theoretical understanding for the elastic-plastic deformation behavior in order to enhance the added value of materials.

+82-55-280-3509

Major Activities

Precision forming technology of lightweight metals (Al, Mg and Ti): technology transfer (royalty income \82,000,000).
Constitutive modeling for deformation behavior prediction of lightweight metals: 2 papers (International Journal of Plasticity, JCR Top 5%) published . 1 program registered.
Simultaneous improvement of both bonding strength and formability for dissimilar metallic materials: 10 papers published, 9 domestic patent registered.

Major Research Area

Development of precision warm forming process for microstructure control of steel driving components.
Prediction of high temperature deformation behavior of hardly deformable high strength material and development of plastic deformation process.
Development of cold drawing process for the high-strength stainless steel and multi-component alloys.
Development of precision forming technology for lightweight metals (Al, Mg and Ti) with new constitutive modeling.
Design and analysis of electromagnetic forming and joining process.
Development of the roll bonding process for dissimilar metallic materials together with simultaneous improvement of both bonding strength and formability
Development of design and manufacturing process for lightweight and multi-functional periodic cellular metals(PCM).
Development of porous structure based materials by additive manufacturing technology.

Future Research Plan

  • Development of forming process by controlling yield ratio of high strength material.
  • Development of heat-assisted sheet metal forming technology and thermo-mechanical constitutive modeling for large size automotive parts of lightweight metals (Al, Mg and Ti).
  • Development of high efficient electromagnetic forming system for application of automotive parts.
  • Development of active friction control ultrasonic vibration forming technology.
  • Development of double point incremental forming technology for 4 th industrial evolution.
  • Development of the deformation-induced large-scale bonding technology between dissimilar metals or metal/inorganic materials.
  • Development of additive manufacturing technology for customized medical and industrial products.

Major R&D Activities

Development of electromangetic forming and joining technology for aluminum tube.

[Introduction]

  • Development of high speed forming and joining technology for aluminum tubes using the electromagnetic force. The processes consolidation of forming and joining for cost-effective fabrication of the automotive member parts.

[Main achievements]

  • Simultaneous forming and joining of aluminum tubes using electromagnetic forming system (EMFS) of a energy capacity of 120kJ.
  • Fabrication of a helix type coil actuator for joining the sheet tube.
  • Process design of electromagnetic forming and joining using electromagnetic-mechanical-thermal coupled 3-D multiphysic numerical simulation.
Numerical simulation for electromagnetic forming
Electromagnetic forming and joining protype

Development of the roll bonding process for dissimilar metallic materials together with simultaneous improvement of both bonding strength and formability

  • Development of roll bonding process between metallic glass/titanium and high-strength aluminum sheets whose width and length are more than 150 mm and 300 mm, respectively.
  • Development of forming technology for the Al/Ti clad sheets exhibiting bonding strength of 26.92 N/mm without interface defect and brittle intermetallic compounds.

Design and fabrication of lightweight & multi-functional PCM(Periodic Cellular Material) having high-strength and heat-dissipation capability

  • PCM (Periodic Cellular Material), which consists of regularly arranged unitcells, is an excellent multi-functional material with high specific stiffness/strength, impact energy absorbing ability, and thermal management ability. This study aims to develop the design and fabrication technology of PCM for electric automobile parts.
  • Development of design and fabrication technology of PCMs with relative density of 5% or less, normalized compressive strength of 0.3 or more.
  • PCM crashbox with 10% higher SEA(specific energy absorption) than Al foam.
  • Hybrid PCM sandwich panel consist of steel core and aluminium facesheet.