| 摘要 |
A bending apparatus which manufactures a bent metal member with high productivity and excellent dimensional has a first support mechanism, which supports a steel tube while feeding it, a heating mechanism, which heats all or a portion of the steel tube, a cooling mechanism, which forms a high temperature portion in part of the steel tube by cooling a portion of the heater steel tube, a second support mechanism, which imparts a bending moment to the high temperature portion and bends the steel tube to a desired shape by moving two-dimensionally or three-dimensionally while supporting at least a portion of the steel tube, and a deformation preventing mechanism, which prevents deformation of the steel tube. At least one of the second support mechanism and the deformation preventing mechanism has a chuck which has a tubular member with a circular, polygonal, or special transverse cross section for gripping the steel tube. |
