As Machined Services
“As Machined” surface finish refers to the natural state of a part after CNC machining, turning, milling, or other cutting processes, without additional polishing, blasting, or coating. This finish retains tool marks while ensuring dimensional accuracy, offering the fastest and most cost-effective solution.
What is As Machined Surface?
It is the raw finish left directly after machining, typically with visible tool paths and minor machining marks. The surface roughness depends on the machine and cutting parameters.
Why Choose As Machined Finish?
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Cost-Effective – No additional finishing required
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Fast Delivery – Avoids secondary processes
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High Precision – Maintains dimensional accuracy
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Functional – Ideal for non-cosmetic parts
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Great Base for Post-Processing – Can be further anodized, plated, or coated
As Machined Surface Finish Parameters
| Parameter | Typical Range | Notes |
|---|---|---|
| Surface Roughness Ra | 1.6 μm – 3.2 μm | Depends on cutting tools and feed rates |
| Dimensional Tolerance | ±0.005 mm – ±0.01 mm | Based on machine capability |
| Appearance | Metallic luster, visible tool marks | Raw machined texture |
| Tool Marks | Present | Feed and cutting traces |
Detail of As Machined Parts
What Materials Can Be As Machined?
| Material Category | Common Grades |
|---|---|
| Aluminum Alloys | 6061-T6, 7075-T6, 2024, 5052 |
| Stainless Steel | 304, 316L, 410, 420 |
| Carbon Steel | 1018, 1045, 4140 |
| Copper & Brass | C11000, C36000 |
| Titanium | Ti-6Al-4V |
| Plastics | ABS, POM, PC, PEEK, Nylon |
Applications of As Machined Finish
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Aerospace – Structural parts, jigs, fixtures
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Automotive – Engine components, test parts
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Medical – Functional prototypes, lab-use components
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Electronics – Heat sinks, internal housings
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Industrial Equipment – Machine parts, mold bases
