Cold Tube Bending – The bending of pipe or tube to shapes by cold working methods.
Centerline Radius (CLR)– Distance from the center of curvature to the centerline axis of the tube or pipe bends. Often abbreviated as CLR.
Degree – Angle in degrees to which the pipe bends or tube bends are formed (i.e. 45 degrees, 90 degrees, 180 degrees, etc.)
O.D. – Outside diameter of the tube or pipe.
I.D. – Inside diameter of the tube or pipe.
Wall – The thickness of tubular pipe material.
Minimum Tangent – The minimum straight on the end of pipe bends required by the bending machine to form the bend.
Ovality – The distortion or flattening of pipe or tube from its normal, round shape caused by the pipe bending process.
Wrinkles – Waving or corrugation of pipe bends or tube bends in the inner radius.
Easy Way (EZ) – Bending of a rectangular tube with its short side in the plane of the tube bend.
Hard Way (HW) – Bending of a rectangular tube with its long side in the plane of the tube bend.
Tangent – The straight portion of material on either side of arc of rolling bends.
Tangent Point – The point at which the pipe bend or tube bend starts or ends.