| 非圆光斑对金属激光快速成形的影响及对策 |
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| 引用本文： | 王维,范鹏翔,项坤,杨光,钦兰云,齐鹏.非圆光斑对金属激光快速成形的影响及对策[J].制造技术与机床,2012(6):122-124. |
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| 作者姓名： | 王维 范鹏翔 项坤 杨光 钦兰云 齐鹏 |
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| 作者单位： | 1. 沈阳航空航天大学机电工程学院,辽宁沈阳,110136
2. 沈阳航空航天大学机电工程学院,辽宁沈阳 110136;南京机电液压工程研究中心,江苏南京 211102 |
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| 摘 要： | 当不同方向扫描成形时,采用相同的扫描间距而忽视非圆光斑各向异性的影响,是造成金属快速成形件内部缺陷的一个重要原因.在不更换或调整原有硬件设备的情况下,采用变扫描间距法(即在不同方向上采用不同的扫描间距)与层间正交变向往复扫描相结合,实验结果表明试件的表面质量、成形精度和内部质量都有显著提高.
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| 关 键 词： | 激光快速成形 激光光斑 CO2激光器 激光熔覆 扫描间距 |
Effect and countermeasure of non-circular spot in laser additive manufacturing |
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| WANG Wei
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FAN Pengxiang
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XIANG Kun
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YANG Guang
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QIN Lanyun
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QI Peng.Effect and countermeasure of non-circular spot in laser additive manufacturing[J].Manufacturing Technology & Machine Tool,2012(6):122-124. |
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| Authors: | WANG Wei FAN Pengxiang XIANG Kun YANG Guang QIN Lanyun QI Peng |
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| Affiliation: | ①(①School of Mechanical and Electrical Engineering,Shenyang Aerospace University,Shenyang 110136,CHN;②Nanjing Engineering Institwte of Aircraft Systems,Nanjing 211102,CHN) |
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| Abstract: | Neglecting the effects of anisotropy of the non-circular spot and taking the same scanning spacing in different directions is one of the important reasons for internal defects of the forming parts.Without replacing or adjusting any existing equipments,just adopting different scanning spacing in different directions and combining with the orthogonal direction changing parallel reciprocating scanning,can improve the forming parts’ surface quality,shape accuracy and internal quality observably. |
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| Keywords: | Laser Addictive Manufacturing Laser Spot CO2 Laser Laser Cladding Scanning Spacing |
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