| 高功率激光去除薄金属构件中缺陷的研究 |
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| 引用本文： | 胡木林,谢长生,杨子青,陈钧.高功率激光去除薄金属构件中缺陷的研究[J].热处理技术与装备,2006,27(5):35-38. |
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| 作者姓名： | 胡木林 谢长生 杨子青 陈钧 |
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| 作者单位： | 1. 华中科技大学材料科学与工程学院模具技术国家重点实验室,湖北,武汉,430074
2. 国立台湾大学材料科学暨工程学系,台北,106 |
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| 摘 要： | 针对薄金属构件中的缺陷,为了探讨激光焊接去除缺陷之可行性与焊道的纯化效应机理,利用激光熔覆技术或不当焊接工艺来制作含缺陷的试样.薄金属构件中缺陷的去除系采用一次或多次keyhole激光焊接方式.利用X射线探伤技术对所得试片进行检测,利用扫描电镜进行组织观察和成分分析,并对缺陷去除前后的试样进行V型缺口冲击试验.结果表明,keyhole激光焊接可以通过蒸发或分解夹杂物而有效地去除夹杂物颗粒,并显著提高材料的冲击韧性.
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| 关 键 词： | 氧化物夹杂 激光焊接 栓孔效应 冲击韧性 |
| 文章编号： | 1679-4971（2006）05-0035-04 |
| 收稿时间： | 2006-01-06 |
| 修稿时间： | 2006年1月6日 |
Removing of Oxide Inclusions in sheet metal via laser welding |
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| HU Mu-lin,XIE Chang-sheng,YANG Zi-qing,CHEN Jun.Removing of Oxide Inclusions in sheet metal via laser welding[J].Heat Treatment Technology and Equipment,2006,27(5):35-38. |
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| Authors: | HU Mu-lin XIE Chang-sheng YANG Zi-qing CHEN Jun |
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| Abstract: | In order to study the mechanism of removing inclusions is sheet metal via laser welding, specimens with different inclusions were prepared by laser cladding mixed powder on 410 stainless steel substrates, then specimens with inclusions were treated via laser welding. All the specimens were detected by X- ray detector and characterized by SEM. The results showed that the inclusions can be removed away effectively via laser welding, and the impact values of specimens after being treated were enhanced remarkably. |
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| Keywords: | Oxide inclusions Laser welding Keyhole phenonena Impact value |
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