TUBE AND PIPE BENDERS AND METHODS OF BENDING SAME

摘要

In a crossbow-style tube bender, a curved bending mandrel having a channel into which the tube in bent to form the bent tubing length has at least one relief surface forming a localized recess or depression in the surface of the channel. A forming bar or cross bar adapted to cooperate with a bending mandrel has on a first side of the forming bar a least one first pair of forming mandrels configured for a first tubing size, and on a second side of the forming bar has at least one second pair of forming mandrels configured for a second tubing size. The bender has a quick connect- disconnect mechanism permitting quick disconnection from and connection to the forming bar to utilize either the at least one first or at least one second pairs of forming mandrels.