Laser Cladding of Cold-Work Tool Steel by Pulse Shaping
Repair welding of cold-work tool steels in cold is very risky and almost impossible by conventional processes. The application of pulse shaping in laser cladding with wire to avoid the solidification problems in relevant steel is demonstrated. The results show that sound remelting and/or cladding ca...
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| Veröffentlicht in: | Journal of materials science & technology 2011-08, Vol.27 (8), p.707-713 |
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| container_end_page | 713 |
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| container_issue | 8 |
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| container_title | Journal of materials science & technology |
| container_volume | 27 |
| creator | Pleterski, Matej Tušek, Janez Muhic, Tadej Kosec, Ladislav |
| description | Repair welding of cold-work tool steels in cold is very risky and almost impossible by conventional processes. The application of pulse shaping in laser cladding with wire to avoid the solidification problems in relevant steel is demonstrated. The results show that sound remelting and/or cladding can be achieved by the right selection of laser parameters and pulse shape, i.e. long pulse duration, moderate pulse peak powers and ramped-down pulse shape. Despite the defects and softening in the cladding due to the formation of retained austenite, the cladding shows better wear resistance at lower loads compared to the heat-treated base material. |
| doi_str_mv | 10.1016/S1005-0302(11)60130-8 |
| format | Article |
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The application of pulse shaping in laser cladding with wire to avoid the solidification problems in relevant steel is demonstrated. The results show that sound remelting and/or cladding can be achieved by the right selection of laser parameters and pulse shape, i.e. long pulse duration, moderate pulse peak powers and ramped-down pulse shape. 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| ispartof | Journal of materials science & technology, 2011-08, Vol.27 (8), p.707-713 |
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| language | eng |
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| source | Elsevier ScienceDirect Journals Complete; Alma/SFX Local Collection |
| subjects | Cladding Heat treatment Laser beam cladding Laser cladding Materials science Pulse shape Repair welding Softening Tool steel Tool steels Wear resistance Wear test 传统工艺 冷作工具钢 残余奥氏体 激光熔覆 焊接修复 脉冲形状 脉冲成形 脉冲持续时间 |
| title | Laser Cladding of Cold-Work Tool Steel by Pulse Shaping |
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