Theoretically exact planes, lines or points from which other features are located on design drawings.
A forming process where a sheet metal blank is radially drawn into a forming die by a mechanical punch, producing deep, hollow shapes.
Defective surface condition where scale, slag or other impurities not removed during mill processing affect the surface of the sheet.
Large pressurized cylinder, generally housed beneath the bed of a press which is used to apply upward pressure to the lower die.
Packaging elements, generally of cardboard, which are machine blanked to a specific shape in order to precisely fit a part contour.
Scratches, scrub marks, indentations, galling or burnishing of sheet metal workpieces by tooling.
A condition that may occur on a laser wherein the laser essentially produces a feature twice destroying the part's edge and causing out of dimension condition.
A raised feature or ridge on the metal sheet used to control material flow during the deep drawing process.
1 Engineering document depicting a part or assembly. 2 In metal forming, the stretching or compressing of a sheet metal part into a die by a punch to create a 3-dimensional part.
The ratio of the initial blank diameter to the final drawn part diameter in deep drawing operations.
