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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 center line 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.