Laser Cutting Glossary - D

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Depth of Field
The range at which the focused laser beam works. Dictated by the diameter of the unfocused beam, focal length of the lens and the wavelength of the laser. A bigger focal length produces a larger depth of field.

Divergence
The angle at which the rays of a laser beam spread away from each other.

Drift
Unwanted variations in laser amplitude or frequency.

Dross
A residue which forms on the bottom edge of a laser cut, formed from material which has been melted by the cutting laser solidifying. May be due to use of low quality materials. Increasing gas pressure or using pulsed laser output can reduce dross.

DXF File
Drawing Exchange Format. Export file format originating in AutoCad, which has become a standard CAD file format.

DWG File
AutoCad drawing file format.