Rapid Custom ManufacturingRapid Custom Manufacturing

Aluminum Machined and Anodized Prototype

Project Overview:

Manufacturing Process: CNC Machining
Material: Aluminum 6061-T6
Part Dimensions: 390.00 × 213.00 × 130.00 mm
Surface Finishing: Sanding, Threading, Anodizing Blue
Quantity and Lead Time: 1 Unit, 7 Days

Customer was an Australia company offering professional service and engineered solutions for fluid systems. This prototype was made to test liquid pressure and fitting before low volume production. Since big dimensions, shape stability and milling tolerance were key points.
CNC Aluminum MachiningCNC Machining First Side. It usually started from coarse milling by the big cutting tools to fast remove unwanted material, to fine milling by gradually smaller tools to mill the detailed and precision features.
CNC Aluminum MillingCNC Machining Second Side. For 3 axis CNC, the workpiece was rotated manually and repositioned accurately to be machined side by side.
CNC Machining AluminumCNC Machining Third Side. This prototype's main shape came out after finishing this side's milling. The fourth side was to mill the bottom's 6 holes.
CNC Milling AluminumCNC Machining Fifth Side. One deep hole on this side was bored instead of milled as it out of milling capability as well as threading 1-1/2" BSPT.
Aluminum Machined PrototypeThe CNC Machined Prototype prior to Surface Finishing. All cutting lines and burrs on milled surface were removed by sanding and beadblasting.
Aluminum AnodizingThe Final Finishing of Aluminum Anodizing. The thin anodized film provided aesthetic feeling as well as corrosion & abrasion resistance to the part.


Aluminum Milled and Anodized Prototype The Finished Prototype. After finishing the liquid pressure and fitting test, customer proceeded with the low volume manufacturing of 10 units.


How to Get Quality Aluminum Anodizing Finishing:

The aluminum material composition considerably affected the anodizing result. Generally, 6061/6063 and 5052 were the preferred types of aluminum material for quality anodizing finishing.