CNC Machining of an Aluminum Tube for the Fire Arms Industry

At Schmid Tool and Engineering, high volume jobs present us with the opportunity to test our abilities for machining parts in the most efficient, cost-effective manner possible. One of our recent challenges was a contract from a firearms manufacturer for fabricating 100,000 anodized aluminum tubes that met multiple military specifications.

Focusing on efficient use of materials, our in-house design team developed a multi-step primary CNC machining process that incorporated an impact extrusion, turning the parts on a Y-axis lathe, and then horizontal milling. Subsequently, the tubes, which measured 8" long with 1" diameters, were put through secondary processes that involved sand blasting, dry film lubricating, and finally anodizing to the required finish. Inspection revealed that all parts maintained the tight ±.0005-inch tolerances that the firearms industry demands. Packaged in partitioned boxes, the tubes were shipped to a satisfied customer.

To learn more about this project, or to learn about our other services, please contact Schmid Tool & Engineering.

Aluminum Tubes for Fire Arms
Aluminum Tubes for Fire Arms

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Aluminum Tube for Fire Arms Project Details

Product Description
This aluminum tube is used within a fire arm application.
Capabilities Applied/Processes
  • Develop Investment casted option
  • Extrusion Design
  • Machining Fixtures
  • Gaging Package
CNC Horizontal Milling
CNC Turning
  • Y-Axis Lathe
Sand Blasting
Dry Film Lube
  • Partitioned Box
Overall Part Dimensions
Length: 8.000"
Width: 1.000"
Tightest Tolerances
Material Used
7075 Aluminum
Material Finish
Industry for Use
Fire Arms
100,000 EAU
Standards Met
Multiple MIL-Specs

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