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Study of Thermal Deformation of a Base Sheet Caused by Laser Cutting

  • Masayuki Nunobiki
  • Koichi Okuda
  • Toshiyuki Yoshida
  • Shohei Kita
Conference paper
  • 1.8k Downloads

7 Conclusions

This study investigated the thermal deformation of a base sheet when a lot of products were cut out from the base sheet.

It was clarified that the thermal deformation was influenced by the cutting sequence in the case of laser cutting of SUS304 sheets of 1mm thickness. The workpieces bent upward in inward sequence, and the workpieces bent downward in outward sequence. This tendency was observed even if we cut kerfs at long intervals or continuously. It is expected that the deformation of the base sheet was able to be controlled by cutting sequence.

In the case of SUS304 sheet of 2mm thickness, the workpieces bent upward even if we cut kerfs in inward sequence or outward sequence. In the case of laser cutting of thick sheet, the control of deformation was difficult as long as kerfs were cut continuously.

Keywords

Laser cutting Thermal deformation Deformation of a base sheet Control of deformation Cutting sequence 

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Copyright information

© Springer-Verlag London Limited 2007

Authors and Affiliations

  • Masayuki Nunobiki
    • 1
  • Koichi Okuda
    • 1
  • Toshiyuki Yoshida
    • 2
  • Shohei Kita
    • 3
  1. 1.University of HyogoJapan
  2. 2.Yamato Trackwork System Co., Ltd.Japan
  3. 3.Sanyo Special Steel Co., Ltd.Japan

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