Scratches, scrub marks, indentations, galling or burnishing of sheet metal workpieces by tooling.
Dimension
A measurement describing size and/or appearance of a part feature.
Dip Brazing
Metal bonding of parts by molten bath immersion.
Discoloration
l Staining. 2 Changing or darkening in color from the standard or original.
Diskette
A flexible plastic disk coated with magnetic oxide and used for storing electronic data.
DOS
Acronym for Disk Operating System. A computer operating system.
Double Action
Press utilizing two moving elements.
Double Burned
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.
Download
To receive data from another computer.
Drain Holes
Holes placed in the part that are nonfunctional except to allow for drainage.
Draw
A term used interchangeably with tempering in the heat treating process.
Draw Ring
Holding device in a die to control material flow and wrinkling during forming.
Drawing
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.
Dry Film Thickness
Thickness of an applied coating after drying or curing.
Dry Spray
See Oversprays.
D-Size
A common drawing size, 22 x 34.
Ductility
Ability of a material to be bent or otherwise formed without fracture.