Inside Precision CNC Aluminum Machining: How We Hold ±0.01 mm (With Video)

Inside Precision CNC Aluminum Machining: How We Hold ±0.01 mm

Precision is not accidental — it is engineered. In this short video, you can see high-speed CNC aluminum machining up close, where every pass is held to ±0.01 mm. Here is what goes on behind the chips.

Why Aluminum?

Aluminum is lightweight, corrosion-resistant, and machines quickly — making it ideal for automation, robotics, electronics, and medical parts. Grades like 6061 and 7075 balance strength and machinability, and take finishes such as anodizing and bead blasting beautifully.

What Determines Accuracy

• Tool paths & CAM strategy: well-planned passes reduce deflection and tool marks
• Machine capability: 5-axis centers reach ±0.005 mm; 3-/4-axis centers hold ±0.01 mm
• Feeds, speeds & coolant: tuned to protect surface finish while cutting fast
• Inspection: a CMM (±0.003 mm) verifies critical dimensions before shipment

Our Process

Every project follows IQC → FAI → IPQC → OQC under an ISO 9001 quality system. We machine aluminum 6061/7075, stainless steel 304/316/17-4PH, brass, copper, and titanium — plus engineering plastics like POM, nylon, and PEEK. Parts from prototypes to production runs all go through the same discipline: optimize, machine, measure, and only then ship.

Surface Finishes & Materials

Beyond tight tolerances, finish matters for function and appearance. We support anodizing, bead blasting, plating, passivation, blackening, polishing, silk screen, and laser marking — so your part looks and performs as intended. For harder materials such as Inconel or magnesium, or ultra-thin walls under 0.3 mm, we evaluate feasibility first to avoid surprises.

Key Takeaways

• Standard tolerance ±0.02 mm; precision work to ±0.01 mm and ±0.005 mm on 5-axis
• Surface finishes down to Ra 0.8 μm (fine milling) and Ra 0.4 μm (grinding/polishing)
• Prototyping from 3–5 days; small batch 7–10 days; large batch 15–25 days
• MOQ: 1 pc for prototyping, 50 pcs for batch pricing

Getting Started

To receive an accurate quote, simply send your 2D/3D drawings (STEP, IGES, STP, DWG, or PDF), the material and finish requirements, and your target quantity and deadline. Our engineers review manufacturability and respond with pricing and lead time — often within one business day.

Work With Wishtek

Shenzhen Wishtek Precision Technology Co., Ltd. has delivered precision components and assemblies since 2011, with 100% of core processes in-house. Send your drawings and we will turn them into precision reality.

Contact Shirley ｜ WhatsApp +86 18124740009 ｜ shirley.shaw@wishtek.com.cn ｜ metalcncservices.com