机械与电子2019，Vol.37Issue(2)：18-21,4.
激光切割参数对辅助气体流场影响研究
Influence of Laser Cutting Parameters on Auxiliary Gas Flow Field
张立鑫 1李堑1
作者信息
- 1. 河海大学机电工程学院, 江苏 常州 213002
- 折叠
摘要
Abstract
Laser cutting quality and speed are affected by laser cutting process parameters.In order to study the influence of different laser cutting parameters on the auxiliary gas flow field, a three-dimensional symmetric impinging jet model for laser cutting plane was established.According to the compressible axisymmetric N-S equation and RNG k-epsilon onflow model, the free jet flow of a conical nozzle was numerically simulated by finite volume method for analyzing the relationship between auxiliary gas flow field dynamic performance and laser cutting parameters.The simulation results show that after choosing a reasonable inlet pressure, the auxiliary gas flow structure with good dynamic performance can be obtained by reducing the plate thickness.关键词
激光切割/进口压力/板厚/气体流场Key words
laser cutting/inlet pressure/plate thickness/gas flow field分类
矿业与冶金引用本文复制引用
张立鑫,李堑..激光切割参数对辅助气体流场影响研究[J].机械与电子,2019,37(2):18-21,4.
