TUBE-TYPE TORSION BEAM MANUFACTURING METHOD AND APPARATUS CAPABLE OF MAINTAINING THE SHAPE OF A TORSION BEAM DURING A HEAT-TREATMENT PROCESS

摘要

PURPOSE: A tube-type torsion beam manufacturing method and apparatus are provided to improve the productivity of a mold by heating and rapidly heating a cold-formed tube material.;CONSTITUTION: A tube-type torsion beam manufacturing method comprises steps of: cold-rolling a tube material into a tube-type torsion beam(10), heating the torsion beam, inserting side jigs(130) to both ends(12) of the heated torsion beam, clamping the center portion(13) of the torsion beam with upper and lower jigs(110,120), and rapidly cooling the torsion beam fixed with the jigs.;COPYRIGHT KIPO 2012