OEM Metal CNC Machined Milling Aluminum Parts With Anodizing
Precision
Anodizing Options for CNC Machined Aluminum Parts:
Anodizing is one of the most common finishing options, offering
strong corrosion protection and enhancing the overall appearance of
metal parts. Three types of aluminum anodizing are available from
Protolabs:
●Type I-Chromic Acid: Provides a whisper-thin but still durable
coating. Commonly used for welded parts and assemblies and as a
primer before painting. Like all anodized surfaces, it is
non-conductive.
●Type II-Sulfuric Acid: Harder than Type I it offers an exceedingly
durable finish. Usage examples include carabiner hooks, flashlight
handles, motorcycle parts, and hydraulic valve bodies.
●Type III-Hard Anodize or Hardcoat: This is the thickest and
hardest anodize available and has a wide range of applications for
parts and products in automotive, aerospace, heavy equipment,
marine industry, general manufacturing, and military/law
enforcement.
Design Consideration for Milling:
When designing parts to be CNC milled, there are several tips to
keep in mind:
(1)CNC milling machines are capable of precision so try to use this
to your advantage
(2)Avoid deep pockets which are difficult to machine
(3)Sharp inside corners are often difficult so consider using a
radius
(4)Apply chamfers to the top edges to reduce sharpness and improve
appearance.
(5)Apply filters to the bottom of pockets to reduce the possibility
of stress fractures if the component is under stress.
(6)Thin walls and other flimsy shapes can be difficult to machine
as they may not hold up against the pressure of the cutting action.
(7)Try to create shapes that do not have complex curves in more
than one axis – as it may be difficult to hold during machining.
Details:
| Service | CNC Turning, CNC Milling, Laser Cutting, Bending, Spinning, Wire
Cutting, Stamping, Electric Discharge Machining (EDM), Injection
Molding |
| Materials | Aluminum: 2000 series,6000 series,7075,5052 etc. |
| Stainless steel: SUS303,SUS304,SS316,SS316L,17-4PH etc. |
| Steel: 1214L/1215/1045/4140/SCM440/40CrMo etc. |
| Brass: 260, C360,H59,H60,H62,H63,H65,H68,H70,Bronze,Copper |
| Titanium: GradeF1-F5 |
| Plastic: Acetal/POM/PA/Nylon/PC/PMMA /PVC/PU/Acrylic/ABS/PTFE/PEEK
etc. |
| Surface Treatment | Anodize, Bead blasted, Silk Screen, PVD Plating,
Zinc/Nickle/Chrome/Titanium Plating, Brushing, Painting, Powder
Coated,
Passivation, Electrophoresis, Electro Polishing, Knurl,
Laser/Etch/Engrave etc. |
| Tolerance | +/-0.002~+/-0.005mm. |
| Surface Roughness | Min Ra0.1~3.2 |
| Drawing Accepted | STP, STEP, LGS, XT, AutoCAD(DXF,DWG), PDF, or Samples |
| Lead Time | 1-2 weeks for samples,3-4 weeks for mass production |
| Quality Assurance | ISO9001:2015, SGS, RoHs, TUV |
| Payment Terms | Trade Assurance, TT/PayPal/West Union |
FAQ:
Q: What's the MOQ?
We can accept low quantities.
Q: Can I get a sample for the check?
Yes, just need the sample cost, and we will return it back in mass
production.
Q: What if I want custom a part but I can't draw?
We can also offer design services as long as you tell us all your
requirements.
Q: I want to keep our design secret, can we sign an NDA?
Sure, we can sign the NDA before you send the drawing.
Q: How do you ship the goods and how long does it take to arrive?
A: We usually ship by DHL, UPS, FedEx or TNT. It usually takes 3-5
days to arrive. Airline and sea shipping is also optional.
Q: How to proceed with an order?
A: Firstly let us know your requirements or application. Secondly,
we quote according to your requirements or our suggestions. Thirdly
customer confirms the samples and places a deposit for a formal
order. Finally, we arrange the production.
Q: Do the products of all the colors are the same with the same
surface treatment?
A: No. about powder coating, the bright color will be higher than
white or gray. About the Anodizing, colorful will be higher than
silver, and black higher than colorful.
