The mechanical properties of H13 die steel repaired by a biomimetic laser technique
The mechanical properties of H13 die steel repaired by a biomimetic laser technique
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仿生激光技术修复H13模具钢的力学性能
DOI：
10.1016/j.optlastec.2013.04.024
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发表时间：
2013-12-01
影响因子：
5
通讯作者：
Wang, Chuanwei
中科院分区：
文献类型：
--
作者：
Cong, Dalong;Zhou, Hong;Wang, Chuanwei
用脉冲激光焊接用填充线修复带有裂纹的H13钢试样，并分析激光参数以获取没有缺陷的焊接。制造具有不同间距的加强单元，以改善激光技术在样品表面上的焊缝的拉伸强度和热疲劳抗性，即用于热疲劳的拉伸样品和PS，即PS-1，PS-2和PS-3标本。结果表明，这些单元对改善H13钢的焊接组件的拉伸强度和热疲劳耐药性具有有益作用。改进可以归因于单元内的微观结构特性，而相邻单元的间距是影响仿生治疗的焊缝强度的关键因素。 （c）2013 Elsevier Ltd.保留所有权利。
The H13 steel specimens with cracks were repaired by pulsed laser welding with filler wire and the laser parameters were analyzed to obtain the weld without defects. Strengthening units with different spacing were fabricated to improve the tensile strength and thermal fatigue resistance of the weld by laser technique on the surfaces of specimens, that is, PS-1, PS-2 and PS-3 for tensile specimens and PS for thermal fatigue specimen. The results indicated that the units have a beneficial effect on improving the tensile strength and thermal fatigue resistance of welded components of H13 steel. The improvement can be attributed to the microstructure characteristics within the units and the spacing of adjacent units is a key factor which affects the strength of weld by biomimetic treatment. (c) 2013 Elsevier Ltd. All rights reserved.