Post-Processing for CNC Machining
Evaluate standard surface finishes for CNC machined parts as well as advanced capabilities to improve durability, surface finish, and add color.
Certifications： ISO 9001:2015 | AS9100D | ITAR
Standard Finishes
Choose from three standard surface finish options for CNC machined parts.
Edges broken (tool marks visible)
Edges deburred with visible toolmarks.
Materials: Plastic, Metals
Cost: $
Edges broken and light bead blast
Edges deburred with light bead blast.
Materials: Metals
Cost: $$
Leave sharp (tool marks visible)
Edges left sharp (tool marks visible) should be handled with care.
Materials: Metals
Cost: $
Quick-Turn Coating Options
Anodizing and chromate coating options are available for quick-turn parts that ship within four days.
Anodizing Type II
MIL-A-8625
Colors: Black, Clear
Cost: $$
Anodizing Type III (Hardcoat)
MIL-A-8625
Colors: Black
Cost: $$$
Chromate Type II (Non-Hexavalent)
MIL-DTL-5541
Colors: Clear
Cost: $$
Visit our coating page to see more details about anodizing and chromate conversion coating.
Advanced Post-Processing Options for CNC Machining Parts
Through myRapid and Protolabs Network, access a broad range of post-processing capabilities to meet your part’s exact specifications.
| Description | Materials | Factory | myRapid | Network | |
|---|---|---|---|---|---|
| Bead Blast | Light bead blast to provide uniform finish and light texture | Metals | X | X | X |
| Anodizing | Type I, II, and III finishes are available to improve part durability and add color | Aluminum Titanium |
X | X | X |
| Chromate Coating | Improve corrosion resistance, add electrical connectivity, and the ability to better paint parts | Metals | X | X | X |
| Electroless Nickel Plating | A wear-, abrasion-, and corrosion resistant finish that is compatible with aluminum, stainless steel, and mild steel | Aluminum Steel |
X | X | |
| Part Marking | Laser engraving or pad printing to add labeling and other text to parts | Metals Plastics |
X | X | |
| Passivation | Enhance durability and corrosion resistance of metal parts | Metals | X | X | |
| Powder Coating | Add custom color to parts while improving durability | Metals | X | X | |
| Press Fit Hardware | Incorporate off-the-shelf hardware components to facility assembly | Metals | X | X | |
| Silk Screening | Add design elements or labels to parts | Metals | X | X | |
| Brushing | Achieve uniform, satin-like surface finish | Stainless Steel | X | ||
| Polishing | Create mirror-like finishes on metal parts | Metals | X | ||
| Black Oxide | Improve corrosion resistance | Metals | X | ||
| Brushed + Electropolishing | This combination of processing results in easy-to-clean parts that are corrosion resistant | Metals | X |
