Description of transmitted energy during laser transmission welding of polymers

被引：26

作者：

Chen, M. ^{[1
]}

Zak, G. ^{[1
]}

Bates, P. J. ^{[2
]}

机构：

[1] Queens Univ, Kingston, ON, Canada

[2] Royal Mil Coll Canada, Kingston, ON, Canada

来源：

WELDING IN THE WORLD | 2013年 / 57卷 / 02期

关键词：

Laser welding; Plastics; Models; Polyamides; THERMOPLASTICS; MODEL;

D O I：

10.1007/s40194-012-0003-5

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

It is important to describe the laser energy distribution in polymers properly when modeling heat transfer during laser transmission welding of thermoplastics. This paper presents an analytical model that describes the energy transmission in laser transmission welding of light scattering polymers. The model considers that the transmitted laser beam in a scattering polymer can be represented by scattered and unscattered components. The distribution of the scattered energy from any point in the incident beam is Gaussian. The transmitted power from the discretized input beam is summed to create a normalized power flux distribution model. The model was validated using the measured laser energy distributions after transmission through parts made of polypropylene, as well as unreinforced and glass fiber reinforced polyamide 6.

引用

页码：171 / 178

页数：8

共 17 条

[1]

[Anonymous], 2003, PLASTICS COMPOSITES

[2] A stop towards understanding the heating phase of laser transmission welding in polymers [J].