Die Casting - pointindustrial.com

Die Cast Housing

Various Die Castings

SHORT INFO ABOUT THIS

Features

Minimum Draft Requirements:
- Al & Mg: 1° to 3°
- Zinc: 1/2° to 2°
Normal Minimum Section Thickness:
- Al: .03″ Small Parts: .06″ Medium Parts
- Mg: .03″ Small Parts: .045″ Medium Parts
- Zinc: .025″ Small Parts: .040″ Medium Parts
Size Range: 0.75′ x 0.75″ to 20″ x 20″

Surface Finish: 32-63 RMS

Tolerances: Specific tolerance guidelines can be attained from the North American Die Casting Association (NADCA). General tolerancing below.
- Al and Mg ± .002″/in.
- Zinc ± .0015″/in.
- Add ± .001″ to ± .015″ across parting line depending on size.
NADCA Product Specification Standards for Die Castings can be purchased at the following link: https://www.diecasting.org/Web/R_D/Standards/Web/R_D/Standards.aspx

Die Casting Part Production, Die life Comparison

Die Casting Part Production, Die life Comparison – extremely dependent on part geometry.

	Al 380	Mg AZ91D	Zn No. 3
Part Size Range	.75” x .75” to 24” x 24”	.75” x .75” to 24” x 24”	.75” x .75” to 20” x 20”
Part Weight Range	0.5 oz to 10lbs	0.25 oz to 10lbs	0.5 oz to 8lbs
Machine Tonnage Range	200-800 tons	80-650 tons	150-500 tons
Vacuum-Assist Availability	Yes	Yes	No
Expected Die Life	1X	3X to 5X	Life of Part
	Al 380	Mg AZ91D	Zn No. 3
Part Size Range	.75” x .75” to 24” x 24”	.75” x .75” to 24” x 24”	.75” x .75” to 20” x 20”
Part Weight Range	0.5 oz to 10lbs	0.25 oz to 10lbs	0.5 oz to 8lbs
Machine Tonnage Range	200-800 tons	80-650 tons	150-500 tons
Vacuum-Assist Availability	Yes	Yes	No
From CWM website – PDF link

Die Casting Process Overview

Molten metal is injected under high pressure into steel dies to create near net shape components with a high degree of precision. Once cooled the dies are separated and the part is ejected. The excess metal in the sprue, runner, and flash is removed in a trim die. The trimmed sprue, runners, and flash can then be recycled and reused. Die casting excels at producing a high volume of parts at a low unit cost. A vast range of alloys can be cast.

Cost effective

Economical manufacturing process, especially for large volume production. Once the initial tooling and setup costs are covered, the per-unit cost is very economical.
High Efficiency

High speed production of complex shapes with tight tolerances.

Dimensional Accuracy

Produces thin-wall parts with excellent repeatability and tolerance control.
Surface Finish

Die casting parts have a smooth consistent surface attaining surface finishes between 32-63RMS.