Home >> Industries
Post-processing and assembly are crucial final steps in CNC machining, ensuring parts meet specifications and can be used or assembled correctly. Post-processing involves finishing techniques like deburring, polishing, or coating to refine the final product. Assembly involves bringing together various machined components to create a functional product.
Post-processing aims to improve the aesthetic and functional aspects of CNC-machined parts after the machining process.
After CNC machining, parts often require additional steps to meet final specifications in terms of surface finish, dimensional accuracy, or functional integration. These steps fall into two categories:
Common Techniques:
Deburring: Removing sharp edges and burrs created by the cutting process to ensure safety and improve appearance.
Polishing: Smoothing surfaces to achieve a specific finish or desired appearance.
Coating: Applying protective or decorative coatings like powder coating, painting, or plating.
Surface Finishing: A broader category encompassing various techniques like blasting, heat treatment, and anodizing to achieve specific surface characteristics.
Process | Purpose | Common Applications |
Deburring | Remove sharp edges, burrs, and small chips | All machined parts |
Surface Finishing | Improve texture, gloss, or protection | Cosmetic components, visual parts |
Anodizing | Add corrosion resistance and color to aluminum | Enclosures, heat sinks |
Passivation | Improve corrosion resistance of stainless steel | Medical devices, surgical instruments |
Heat Treatment | Enhance mechanical properties like hardness and strength | Tooling, aerospace components |
Polishing/Brushing | Refine surface appearance | Consumer products, optical components |
Painting/Coating | Aesthetic or functional layers (e.g., powder coat, PTFE) | Outdoor components, electronics |
Laser Engraving | Add logos, text, part numbers | Branded parts, traceability in medical/defense |
Assembly:
Definition: Assembly involves combining multiple machined components into a complete product.
Importance: Allows for the creation of complex mechanisms and finished products.
Assembly Techniques: Can involve various methods, including:
Bolting/Screw Fastening: Using bolts and screws to connect parts.
Soldering: Joining parts using solder.
Welding: Joining parts by fusing them together.
Adhesive Bonding: Using adhesives to join parts.
Assembly Type | Details |
Mechanical Assembly | Screws, nuts, press-fits, snap-fits |
Adhesive Bonding | Epoxy, UV cure adhesives |
Threaded Inserts | Helicoils or brass inserts for durable threads |
Multi-Part Assembly | Precision alignment of subcomponents |
Final Testing | Functional fit, torque specs, alignment, leak test etc. |
Why Choose Rollyu for Post-Processing & Assembly?
ISO 9001 & ISO 13485 certified quality management
One-stop service from raw part to ready-to-install unit
Tight control over finishing tolerances and cosmetic standards
Reduced lead times through integrated processes
In summary, post-processing refines CNC-machined parts to meet specific requirements, while assembly combines these parts to create a functional product.
Previous: None
