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。
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.
出处
《中国激光》
EI
CAS
CSCD
北大核心
2001年第5期471-475,共5页
Chinese Journal of Lasers
基金
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
