WELDING STRUCTURE OF CTBA AND A WELDING METHOD THEREOF, CAPABLE OF IMPROVING THE DURABILITY OF CTBA BY REDUCING STRESS CONCENTRATION IN A CONNECTION UNIT OF A TUBULAR BEAM AND A TRAILING ARM

摘要

PURPOSE: A welding structure of CTBA and a welding method thereof are provided to reduce the concentration of stress in a welding part of a tubular beam and a trailing arm by performing welding which connects the tubular beam and the trailing arm by dividing a connection part into a lower part and an upper part.;CONSTITUTION: A welding structure of CTBA comprises a tubular beam(11), a first welding line(L1), and a second welding line(L2). An end of the tubular beam is connected to one side of a trailing arm(12). The first welding line is formed by being welded along an upper part of a welding part. The second welding line is formed by being welded along the upper part of the welding part. Circumference of a connection part of the tubular beam and the trailing arm is welded by the first welding line and the second welding line. A part which is adjacent to the end of the first welding line and a part which is adjacent to the end of the second welding line are crossed.;COPYRIGHT KIPO 2013