Page 43 - Module DMV20173

3.0 SHEET METAL PROCESSES

Figure 3.13 Transfer die.

6. Tool and die materials

1. Tool and die materials for shearing generally are tool steels and (for high
production rates) carbides.
2. Lubrication is important for reducing tool and die wear, thus improving edge
quality.

3.2.5 MISCELLANEOUS METHODS OF CUTTING SHEET METAL

1. There are several other methods of cutting sheets and, particularly, plates:
a. Laser-beam cutting is an important process typically used with
computer-controlled equipment to cut a variety of shapes consistently, in
various thicknesses, and without the use of any dies.
b. Water-jet cutting is a cutting process that is effective on many metallic as

well as nonmetallic materials.
c. Cutting with a band saw; this method is a chip-removal process.
d. Friction sawing involves a disk or blade which rubs against the sheet or

plate at high surface speeds.
e. Flame cutting is another common method, particularly for thick plates; it
is used widely in ship building and on heavy structural components.

BPLK 75 DMV 20173