As Machined Surface Finish Supplier In China
The “As Machined” finish is the standard and most cost-effective surface option available, representing the direct result of our precision CNC machining process. This finish features the fine, visible tool marks inherent to cutting operations, serving as a clear testament to the quality of the machining itself. At Celerity Precision, a leading manufacturing facility in China, we ensure our As Machined parts maintain the tightest possible tolerances as defined by your design, making it the ideal choice for rapid prototypes, functional components, and parts intended for further post-processing.
For a reliable and rapid supply of high-quality As Machined parts directly from the source, contact Celerity Precision today.
Your As Machined Surface Finish Manufacturer
As a dedicated manufacturer, Celerity Precision views the As Machined finish not as a secondary step, but as the fundamental output of our core competency: precision machining. Our factory floor is equipped with state-of-the-art 3, 4, and 5-axis CNC machines operated by skilled technicians. We meticulously control machining parameters—such as tool selection, feed rates, and spindle speeds—to produce a superior As Machined finish with optimized surface roughness and minimal burrs, straight off the machine. This foundational finish provides the perfect, dimensionally accurate base for any subsequent treatments you may require.
Partnering with us means you are working directly with the factory that controls every aspect of production. From initial DFM analysis to final inspection, our ISO 9001-certified quality system ensures every As Machined component is a true reflection of our commitment to precision and efficiency. We don’t just supply parts; we manufacture solutions with full process traceability and accountability.
Upload your design files today to receive a comprehensive quote and experience the manufacturing excellence of Celerity Precision.
As Machined: Technical Specifications
| Feature | Description |
| Surface Roughness (Ra) | Standard: 3.2 μm (125 μin). Can be improved to 1.6 μm (63 μin) upon request through specific toolpath strategies at a slightly higher cost. |
| Applicable Materials | All machinable metals and plastics, including Aluminum, Steel, Stainless Steel, Brass, Copper, Titanium, ABS, POM, PMMA, Nylon, PEEK, etc. |
| Cosmetic Availability | Functional. This finish is not intended for cosmetic purposes. Minor imperfections from the machining process may be present. |
| Visual Appearance | Characterized by visible, fine concentric lines (tool marks) on turned parts and parallel or contoured lines on milled parts. |
Advantages of As Machined Surface Finish
Maximum Cost-Effectiveness
As the standard finish with no secondary operations, it is the most affordable option.
Fastest Turnaround Time
Eliminating post-processing steps allows us to deliver your parts in the shortest possible lead time.
Highest Dimensional Accuracy
The part's geometry is not altered by any subsequent processes, preserving the tightest tolerances achieved during machining.
True Representation of Machining Quality
The finish directly reflects the precision of our equipment and the skill of our operators.
Ideal for Prototyping and Fit-Checks
Provides a perfect, low-cost method to verify the form, fit, and function of a design.
Excellent Foundation for Post-Processing
Creates a clean, unaltered surface that is ready for painting, anodizing, plating, or other finishes.
As Machined Design Considerations
Tool Mark Direction
Be aware that tool marks will be visible and their direction is determined by the manufacturing process (e.g., circular on turned faces, linear or parallel on milled faces).
Potential for Sharp Edges:
Parts will have sharp edges and corners as-machined. If deburring or edge breaking is required, it must be specified as an additional step.
Surface Finish Consistency
The roughness (Ra) can vary slightly across different surfaces of the same part depending on the tools and operations used.
No Protective Properties
This finish offers no inherent protection against corrosion or wear. For parts exposed to harsh environments, a secondary protective finish is highly recommended.
FAQ
What exactly does "As Machined" finish mean?
It is the natural surface finish that results directly from a CNC machine’s cutting tool interacting with the material. No secondary finishing processes are applied.
How smooth is a standard As Machined finish?
Our standard As Machined finish has a surface roughness (Ra) of approximately 3.2 μm (125 μin).
Is it possible to get a smoother As Machined finish?
Yes, upon request, we can employ specialized tooling and machining strategies to achieve a smoother finish, typically down to Ra 1.6 μm (63 μin), before it would be classified as a different finishing process.
Is this the fastest and cheapest option?
Absolutely. Because it requires no additional labor or processing time after machining, it is our most rapid and cost-effective finishing option.
Will my parts have burrs?
We take measures to minimize burrs during the machining process. However, some minor burrs may remain on the finished part. Specific deburring can be requested as a separate operation.
Does the As Machined finish provide any rust protection for steel parts?
No, it offers no corrosion protection. Carbon steel parts with an As Machined finish will rust quickly if exposed to humidity and should be protected with oil or a subsequent finish.
Why should I choose an As Machined finish?
It’s the perfect choice for functional prototypes, parts where aesthetics are not a concern, internal components, or as a dimensionally accurate base for a finish you plan to apply yourself.
Will the appearance be uniform?
The appearance will show the path of the cutting tool. It will be consistent in its texture but not smooth or uniform like a blasted or painted finish.
Can I get an As Machined finish on any material?
Yes, this finish is available for every metal and plastic that we can machine in our facility.
How do I specify an "As Machined" finish on my technical drawing?
You can simply note “Finish: As Machined” in your drawing’s title block or general notes. Specifying a maximum surface roughness value (e.g., Ra 3.2 μm) is also a common and effective method.