Thermal Deformation of Base Sheet and Local Deformation Around Laser Cutting Edge |
| Journal |
Key Engineering Materials (Volumes 389 - 390) |
| Volume |
Advances in Abrasive Technology XI |
| Edited by |
Tsunemoto Kuriyagawa, Libo Zhou, Jiwang Yan and Nobuhito Yoshihara |
| Pages |
404-409 |
| DOI |
10.4028/www.scientific.net/KEM.389-390.404 |
| Online since |
September, 2008 |
| Authors |
Masayuki Nunobiki, Koichi Okuda, Shogo Morino |
| Keywords |
Deformation Mechanism, Laser Cutting, Plastic Deformation, Thermal Stress |
| Abstract |
When many products were cut out from a wide base sheet by laser cutting in some
conditions, an error occurred in a height regulator by the sheet's greatly bending. It is necessary to
avoid occurring the error at unmanned processing. We paper investigated local deformation around
cutting edge. The cutting path consists of piercing point, terminal point, straight lines, cranks and
curves. We measured local deformation around terminal point, crank and straight line. It was clarified
that base sheet bent greatly around terminal points and crank and the sheet curved gradually along the
straight line. We investigated relationship between global deformation of the base sheet and the local
deformation. It was able to presume the entire deformation of base sheet by overlapping the individual
deformations around cutting edge. |
