Magnetic-force-assisted straightening of bent mild steel strip by laser irradiation

PP Dutta, K Kalita, US Dixit, H Liao - Lasers in Manufacturing and …, 2017 - Springer
PP Dutta, K Kalita, US Dixit, H Liao
Lasers in Manufacturing and Materials Processing, 2017Springer
This study proposes a technique to straighten bent metallic strips with magnetic-force-
assisted laser irradiation. Experiments were conducted for three different types of
mechanically-bent mild strips. The first type was bent strips without any heat treatment. The
second type was stress-relieved and third type was subcritical-annealed bent strips. These
strips were straightened following different schemes of laser irradiation sequence to
understand the performance of straightening. A parametric study was conducted by varying …
Abstract
This study proposes a technique to straighten bent metallic strips with magnetic-force-assisted laser irradiation. Experiments were conducted for three different types of mechanically-bent mild strips. The first type was bent strips without any heat treatment. The second type was stress-relieved and third type was subcritical-annealed bent strips. These strips were straightened following different schemes of laser irradiation sequence to understand the performance of straightening. A parametric study was conducted by varying laser power and scanning speed. Micro-hardness, tensile test, Charpy impact test and microstructure after straightening were also studied. Different scanning schemes provided different microstructures and mechanical properties. Any serious deterioration in the quality of straightened strips was not noticed. Overall, subcritical-annealed bent strips provided the best performance in straightening. The proposed straightening scheme has potential of becoming an industrial practice.
Springer
以上显示的是最相近的搜索结果。 查看全部搜索结果