Tubular stabilizer fabricating method for motor vehicle, involves separating two flaring stages of flaring operation by interruption such that one of stages is carried out on end of tube at temperature between specific degree Celsius

摘要

The method involves heating a steel tube (3) at a temperature ranging between 900 and 1000 degree Celsius. A tubular stabilizer end (2) of the tube is flared in a shaping tool by axial insertion of a repressed punch. Two flaring stages of a flaring operation are separated by an interruption, such that one of the flaring stages is carried out on the end of the tube at another temperature ranging between 500 and 600 degree Celsius. The repressed punch is brought back in an inverse direction from a repressed direction by the other flaring stage.