纳秒脉宽NY:YAG激光冲击强化激光器的研制及分析
文献类型：期刊论文
| 作者 | 乔红超 ; 赵吉宾; 陆莹
|
| 刊名 | 中国激光
 |
| 出版日期 | 2013 |
| 卷号 | 40期号:8页码:802001 |
| 关键词 | 激光技术 激光冲击强化 纳秒脉宽 脉冲能量 大能量激光 |
| ISSN号 | 0258-7025 8-7025 |
| 其他题名 | Develop and Analysis of Nanosecond Pulse Width Nd:YAG Laser for Laser Peening |
| 产权排序 | 1 |
| 中文摘要 | 针对近年采发展的提高工件疲劳寿命的激光冲击强化技术，采用一级谐振级8级放大级的系统结构和模块化设计方法，研制出了激光冲击强化用大能量、短脉宽、离频率的Nd:YAG 脉冲固体激光器，分析了激光器的设计方案、激光光路布置特点，并对其技术指标进行了测试。在预热20 min 后、环境温度变化小于2 °C 的情况下，单脉冲最大输出能量达25 J，能量不稳定度小于3% ，脉宽在16 -20 ns 范围内连续可调，脉宽不稳定度小于±lns ，光束发散角不超过2.5mrad ，重复频率达5Hz。为进一步验证激光器的性能， 对TC4 铁合金进行了激光冲击强化试验，大幅度提高了TC4 铁合金试件表面的残余压应力，测试和试验结果均表明，激光器的各项性能良好 |
| 英文摘要 | For the laser peening technology which is a recently-developed surface treatment method designed to improve the fatigue life of mechanical parts , using a oscillation eight-stage amplified system structure and the modular design method , high-energy , short-pulse and high-frequency Nd: YAG solid-state lasers are developed. Design scheme of the 1aser and the characteristics of laser beam transmission are presented and discussed. At ambient temperature which changes less than 2℃ and after 20 min of warm-up , the technical parameters such as the maximum single pulse energy of 25 J , energy instability less than 3%， pulse width which can be continuously adjustable between 16 ns and 20 ns , pulse width instability less than ±1ns , beam divergence less than 2.5 mrad , and the maximum single frequency of 5 Hz are achieved. To further verify the performance of the lasers , a TC4 titanium alloy work-piece is tested with the Nd: YAG lasers. The tested results show that the compressive residual stress is greatly improved and the performance of the lasers is excellent。 |
| 收录类别 | EI ; CSCD |
| 资助信息 | 国家863计划 (2012AA041310) |
| 语种 | 中文 |
| 公开日期 | 2013-12-26 |
| 源URL | [http://ir.sia.cn/handle/173321/13965]  |
| 专题 | 沈阳自动化研究所_装备制造技术研究室 |
| 推荐引用方式 GB/T 7714 | 乔红超,赵吉宾,陆莹. 纳秒脉宽NY:YAG激光冲击强化激光器的研制及分析[J]. 中国激光,2013,40(8):802001. |
| APA | 乔红超,赵吉宾,&陆莹.(2013).纳秒脉宽NY:YAG激光冲击强化激光器的研制及分析.中国激光,40(8),802001. |
| MLA | 乔红超,et al."纳秒脉宽NY:YAG激光冲击强化激光器的研制及分析".中国激光 40.8(2013):802001. |
入库方式： OAI收割
来源：沈阳自动化研究所
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