Aluminum Casting

Overview

Aluminum alloys are anodized to increase corrosion resistance and to allow dyeing and improved lubrication. Aluminum casting requires special care in working with the secondary alloys within the casting. The process of growing the anodized aluminum layer is done by passing a direct current through an electrolytic solution, with the aluminum serving as the anode. The current releases hydrogen at the cathode (the negative electrode) and oxygen at the surface of the aluminum anode, creating a build-up of aluminum oxide.

Key Performance Properties of Aluminum Castings:

• Highest operating temperatures
• Outstanding corrosion resistance
• Light-weight
• Good strength and hardness
• Excellent EMI & RFI shielding properties
• Excellent thermal conductivity
• Full recyclability

Specifications:

• MIL-A-8625
• AMS2469