Before
After
Objective
A firearms components manufacturer in the Austin, TX region needed a repeatable finishing process to deburr and blend CNC-machined 4140 steel safety components while reducing manual finishing.
| Industry | Firearms/Weaponry |
| Part Description | Firearms Safety Components (Slide Stop Pins & Thumb Safeties) |
| Fabrication Method | MIM Cast, CNC Machined |
| Material | 4140 Steel Alloy-HSS |
| Process Technology | Deburring, Burnishing, Wet Grinding |
| Equipment Type | Centrifugal Disc Finisher |
Solution
Bel Air developed an automated finishing process for CNC-machined 4140 steel firearms safety components using a Centrifugal Disc Finisher. The objective was to remove burrs, blend machined surfaces, and produce a consistent finish while reducing manual hand finishing.
The centrifugal disc finishing process deburred complex features and blended sharp edges without compromising critical part geometry. Multiple process variations were evaluated to determine the most effective combination of media, compounds, and cycle parameters for the application.
The resulting process produced consistent surface preparation across the components while improving repeatability and supporting higher-volume manufacturing.
If you are unsure what equipment and media you require to achieve your desired surface finish, then send us your part, and we will evaluate it and provide you with a metrology report.