Hey there, manufacturing enthusiasts! If you’ve ever wondered how top-tier industries like aerospace, medical devices, or high-end electronics get those durable, sleek-looking aluminum parts, you’re in the right place. Today, we’re breaking down the powerhouse duo: CNC machining + sandblasting + anodizing.
CNC Machining – Where Precision Meets Aluminum
Aluminum (especially alloys like 6061 or 7075) is a go-to for CNC machining, and for good reason. It’s lightweight, corrosion-resistant, and machinable into crazy-complex shapes . Here’s how it works:
- Design: Engineers create a 3D CAD model, defining every cut, hole, and curve .
- Programming: CNC machines follow coded instructions to carve raw aluminum billets into exact specs, holding tolerances as tight as ±0.001mm .
- Why Aluminum? It’s 1/3 the weight of steel, won’t rust, and absorbs vibrations – perfect for everything from surgical tools to drone frames .
Sandblasting – The Secret to a Flawless Finish
After machining, parts might have tool marks or minor imperfections. Enter sandblasting:
- Purpose: Removes burrs, oxidization, and creates a uniform matte texture .
- Process: High-pressure air fires abrasives (like garnet or aluminum oxide) at the surface. Think of it as a microscopic pressure wash .
- Result: A clean, slightly rough surface that’s perfect for paint or anodizing adhesion .
Anodizing – Aluminum’s Superhero Armor
Anodizing isn’t paint – it’s an electrochemical process that transforms the aluminum surface into super-hard aluminum oxide. Here’s the magic:
1.Types Matter:
- Type II (Sulfuric Acid): Your everyday armor. Adds corrosion resistance and comes in colors (black, gold, red – you name it!). Thickness: 5–25 microns .
- Type III (Hard Coat): For parts that take a beating. Think military gear or engine components. Thickness: Up to 50+ microns – harder than tool steel! .
2.Bonus: Anodized parts won’t chip or peel because the coating is part of the metal .
| | CNC Turning, CNC Milling, Laser Cutting, Bending, Spining, Wire Cutting, Stamping, Electric Discharge Machining (EDM), Injection Molding,3D Printing,Rapid Prototype,Moulds etc. |
| | Aluminum: 2000 series, 6000 series, 7075, 5052, etc. |
| Stainlesss 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: Grade F1-F5 |
| Plastic: Acetal/POM/PA/Nylon/PC/PMMA/PVC/PU/Acrylic/ABS/PTFE/PEEK etc. |
| | Anodized, Bead Blasted, Silk Screen, PVD Plating, Zinc/Nickl/Chrome/Titanium Plating, Brushing, Painting, Powder Coated, Passivation, Electrophoresis, Electro Polishing, Knurl, Laser/Etch/Engrave etc. |
| | ±0.002 ~ ±0.005mm |
| | Min Ra 0.1~3.2 |
| CERTIFICATE | ISO9001:2015,AS9100D,ISO13485:2016,ISO45001:2018,IATF16949:2016,ISO14001:2015,ROSH,CE etc. |
FAQ
1. Are you a manufacturer or a trading company?
We are a factory located in Shenzhen, China, with 20 years of rich experience,
covering 6000 square meters. Complete facilities, including 3D quality inspection equipment, ERP system and 40 machines. If necessary, we can provide you with material certificates, sample quality inspection and other reports.
2. How to get a quote?
Detailed drawings (PDF/STEP/IGS/DWG...), including quality, delivery date, materials, quality, quantity, surface treatment and other information.
3. Can I get a quotation without drawings?
Can your engineering team draw for my creativity? Of course, we are also glad to receive your samples, pictures or detailed size drafts for accurate quotation.
4. Can you provide samples before mass production?
Of course, the sample fee is necessary. If possible, it will be returned during mass production.
5. What is the delivery date?
Generally, the sample lasts for 1-2 weeks and the batch production lasts for 3-4 weeks.
6. How do you control quality?
(1) Material Inspection - Check material surfaces and approximate dimensions.
(2) First inspection of production - ensure
critical dimensions in mass production.
(3) Sampling inspection - check the quality before delivery to the warehouse.
(4) Preshipment inspection - 100% inspection by QC assistant before shipment.
7. After sales service team
If you have any problems after receiving the product, you can provide feedback through voice call, video conference, email, etc. within one month. Our team will provide you with solutions within a week.
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OEM CNC machined aluminum parts sandblasting anodizing Images
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