Journal
JOURNAL OF PHYSICS D-APPLIED PHYSICS
Volume 46, Issue 47, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0022-3727/46/47/475501
Keywords
-
Categories
Ask authors/readers for more resources
The temperature determination of liquid metals is difficult and depends strongly on the emissivity. However, the surface temperature distribution of the weld pool is an important characteristic of an arc weld process. As an example, short-arc welding of steel with a cold metal transfer (CMT) process is considered. With optical emission spectroscopy in the spectral region between 660 and 840 nm and absolute calibrated high-speed camera images the relation between temperature and emissivity of the weld pool is determined. This method is used to obtain two-dimensional temperature profiles in the pictures. Results are presented for welding materials (wire G3Si1 on base material S235) using different welding CMT processes with CO2 (100%), Corgon 18 (18% CO2 + 82% Ar), VarigonH6 (93.5% Ar + 6.5% H-2) and He (100%) as shielding gases. The different gases are used to study their influence on the weld pool temperature.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available