| 摘要 |
A bending apparatus which manufactures a bent metal member with high productivity and excellent dimensional accuracy is provided. A bending apparatus (10) has a first support mechanism (11) which is adapted for supporting a steel tube (17) while feeding it, a heating mechanism (13) which is adapted for heating all or a portion of the steel tube (17), a cooling mechanism (14) which is adapted for forming a high temperature portion in part of the steel tube (17) by cooling a portion of the steel tube (17) which was heated by the heating mechanism (13), a second support mechanism (15) which is adapted for imparting a bending moment to the high temperature portion and for bending the steel tube (17) to a desired shape by moving two-dimensionally or three-dimensionally while supporting at least a portion of the steel tube (17), and a deformation preventing mechanism (16) which is adapted for preventing deformation of the steel tube (17), wherein at least one of the second support mechanism (15) and the deformation preventing mechanism (16) has a chuck which has a tubular member with a circular, polygonal, or special transverse cross section and which is adapted for gripping the steel tube (17). |
