CFD Study on the Role of Gas Friction on the Molten Layer Shape and Melt Removal Mechanism in Laser Cutting Process of Steel

被引：1

作者：

Kheloufi, Karim ^{[1
]}

Amara, El-Hachemi ^{[1
]}

机构：

[1] CDTA, Algiers, Algeria

来源：

MATERIAL SCIENCE AND ENGINEERING TECHNOLOGY II | 2014年 / 856卷

关键词：

Laser cutting; numerical modeling; heat transfer; fluid flow; RADIATION;

D O I：

10.4028/www.scientific.net/AMR.856.220

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A numerical analysis of the role of the gas friction force on the shape of the melt surface in laser cutting process is carried out. The liquid film shape is analyzed in the central plane of cutting for both cases with the pressure gradient force only and for the case of gas friction force contribution. It is shown that, the gas friction force has a significant role in the formation of humps in the central kerf zone and the transition from the smooth melt ejection regime to a wavy structure characterized by humps formation.

引用

页码：220 / 225

页数：6