Metal Bending Terms – E to O
The following metal bending terms from E to O may help you understand metal bending a little more:
Equal Tangent- When the straight portions at each end of an arc are equal. (Also see Tangent.)Good Arc- The portion of the steel or other metal that is curved to the required radius. Hot Forming- Heated metal is formed around a die. Some applications may not allow heat. Hot Forming allows for bending steel tighter than otherwise impossible. IR- Inside radius of the rolled shape. Landing- The intermediate platform on a flight of stairs or the area at the top or bottom of a staircase.Leg- Side of a cross section that is not hollow.Mandrel Bending- Cold steel or other metal is formed around a die using a mandrel. Limited to 180 degree bends. Mandrel bending can bend hollow sections of steel very tight. Minimum Tangent- Minimum required straight portion at the end of an arc. (Also see Tangent.)OR- Outside radius of the rolled shape.Ovality- Distortion of pipe or round tube from its normal, round shape to an oval shape. This is caused by the rolling process.
