UDC 669.1

F. I. Panteleenko and A. Heidari Monfared

TEMPERATURE AND STRESS IN A CT3 STEEL PLATE
DURING AIR-ARC CUTTING AND WELDING PROCESSES

Although the air-arc cutting process has been widely used in the material 
processing engineering, little is known about the temperature and stress 
in the air-arc cutting of plates. Here, a three-dimensional finite element 
model including the material removal and thermal effect of the arc is 
developed to study the temperature and stress fields of a CT3 steel plate 
during the air-arc cutting and welding processes. 
The influences of the air-arc cutting process on the initial stress 
field and of the welding process on the initial residual stress are 
of primary importance. It is very important for researchers to clarify 
the temperature and stresses during welding and cutting processes 
and to fully understand the mechanism of the influence of cutting 
and welding on the plate.

Keywords: welding, residual stress, finite element, numerical 
simulation.

Belarusian National Technical University, 65 F. Skorina Ave., 
Minsk, 220013, Belarus; email: panteleyenkofi@mail.ru. 
Original article submitted November 6, 2009.