Apparatus and method for bending multi-channel tubes

摘要

A production apparatus (4) and a method for bending a multi-channel tube (1) having an outer tube and a partition (2) partitioning an interior of the outer tube into two or more channel holes (3) is provided with a bending mold (6) configured to bend the multi-channel tube (1) in a bend radius (R); a pressure mold (7) configured to press the multi-channel tube (1) toward the bending mold (6); a chuck portion (8) configured to hold and draw the multi-channel tube (1) along the bending mold (6); and mandrels (10) respectively inserted into the channel holes (3), each of the mandrels (10) including; a mandrel body (11) configured to support inner surfaces (9) of each channel hole (3); a support device (12) rotatably and movably supporting the mandrel body (11). <IMAGE>