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Casting of Steel Bolt Body for the FireArms Industry


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A large project recently completed by Schmid Tool and Engineering is the manufacture of 12,000 EAU steel bolt bodies used within a firearm application. We produced the component, from design through to packaging, on a just-in-time delivery schedule.

Heavily experienced with firearm requirements, our in-house design experts developed the production gages, machining fixtures, and the investment casting needed to cost-effectively produce the 3" x 1" x 1" components with the required accuracy and repeatability required by the customer. Employing our 4-axis CNC vertical milling machine, our skilled machinists produced the parts from 4130 steel and then honed them to a 125 RMS finish. Each finished part, manufactured to within the precise ±.0005" tolerances, was packaged in a partitioned box and shipped to the customer.

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






Casting of Steel Bolt Body – Project Details

Product Description

This steel bolt body is used within a firearm application

Capabilities Applied/Processes

Primary:
Design
  • Developed Investment Cast Option
  • Production Gages
  • Machining Fixtures
Casting
CNC Vertical Milling
  • 4 Axis Milling
Honing


Secondary:
Honing
Packaging
  • Partitioned Box

Overall Part Dimensions

Length: 3 in
Width: 1 in

Height: 1 in

Tightest Tolerances

± .0005 in

Material Used

4130 Steel

Material Finish

125 RMS

Industry for Use

FireArms

Volume

24,000 EAU
  • Just In Time (J.I.T) Deliveries

Product Name

FireArm Steel Bolt Body