temperature field of fecrnicu alloy forming layers of continuous wave/pulsed laser remanufacture
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ID: 225948
2017
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Abstract
The temperature field of FeCrNiCu alloy forming layers of continuous wave(CW) and pulsed laser remanufacture was analyzed using the non-contact infrared thermometer.The general rule of temperature field distribution of molten pool and heat-affected zone of the two modes was obtained. The pulsed laser process superiority in heat input, forming deformation control and reducing the temperature in molten pool and heat-affected zone was vilidated. The results show that during pulsed laser forming the peak temperature in the heat-affected zone is 730.4-810.5℃,the peak temperature in the molten pool is 998.7-1383.4℃,which are all obviously lower than the same process of the CW mode; the temperature-rise rate and cooling rate of pulsed laser are higher, which is helpful to the forming of fine grain structures and good mechanical performance; the forming experiment also further verifies more narrow heat-affected zone in pulsed laser process.
| Reference Key |
wei-bin2017journaltemperature
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|---|---|
| Authors | ;REN Wei-bin;DONG Shi-yun;XU Bin-shi;REN Jun-hua;ZHENG Xian-zhu;TONG Ji-feng |
| Journal | adsorption science and technology |
| Year | 2017 |
| DOI |
10.11868/j.issn.1001-4381.2015.001131
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