| 空间曲率半径对三维物体激光切割质量的影响 |
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| 引用本文： | 黄开金,谢长生,许德胜. 空间曲率半径对三维物体激光切割质量的影响[J]. 中国激光, 2001, 28(5): 471-475 |
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| 作者姓名： | 黄开金 谢长生 许德胜 |
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| 作者单位： | 华中科技大学国家模具技术重点实验室!武汉430074(黄开金，谢长生)，华中科技大学激光技术国家重点实验室!武汉430074(许德胜) |
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| 基金项目： | 国家自然科学基金!(编号 :CN5 96 35 170 )，激光技术国家重点实验室开放基金资助项目 |
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| 摘 要： | 研究了空间曲率半径对管材激光螺旋切割后切割质量指标的影响。当管径不变、螺距增大时 ,随着空间曲率半径的增加 ,切缝宽度、热影响区宽度及切口横截面半垂直度增大 ,切口表面粗糙度减小。热积累和预热效应是造成上述现象的主要原因
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| 关 键 词： | 空间曲率半径 三维激光切割 螺旋线 激光切割质量 |
| 收稿时间： | 2000-01-14 |
Effects of Spatial Curvature Radius on the Three-dimensional Laser Cutting Quality |
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| HUANG Kai-jin,XIE Chang-sheng,XU De-sheng. Effects of Spatial Curvature Radius on the Three-dimensional Laser Cutting Quality[J]. Chinese Journal of Lasers, 2001, 28(5): 471-475 |
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| Authors: | HUANG Kai-jin XIE Chang-sheng XU De-sheng |
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| Affiliation: | 1. The State Key Laboratory of Plastic Forming Simulation and Mould Technology
2. The State KeyLaboratory of Laser Technology, Huazhong University of Science and Technology, |
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| Abstract: | The effects of spatial curvature radius on the laser cutting quality indexes of pipe with spiral cutting pattern such as the top kerf width, the extent of heat-affected zone (HAZ), the cut surface roughness Rz, the microhardness (HV0.1), the half-squareness were investigated. The results show that the values of the kerf width on the upper surface, the half-squareness, and the HAZ increase with the increase of spatial curvature radius except for the values of the cut surface roughness Rz as the diameter of pipe remains unchanged and the pitch increases. The main reason is the heat accumulation and preheating effects. |
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| Keywords: | spatial curvature radius three dimensional laser cutting spiral curve laser cutting quality |
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