CNC Machining Parts Design Guide-Surface Finish

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7月 7, 2016
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CNC Machining Parts Design Guide-Surface Finish

Surface Finish

Shank offers a wide variety of finishes in accord with the requirements of the customer. The part can go from Milled finish to a Highly Polished finish.


This finish is equivalent to a Ra3.2/125RMS finish where minor tool marks will be visible on the part.The cost will increase if increasing the surface finish requirement because feed rates may need to be reduced and/ or additional processes will be required.

Bead Blast Finish

A light texture with a matte finish is created by blowing small glass beads against the part in designated areas. Additional cost may occur if the design requires significant masking of surfaces or holes that do not require the bead blasting.

Anodizing, Type II

A corrosion resistant finish will be created with this type of finish. Part can be made with different colors – silver, black, red or gold are most common – and is usually associated with aluminum. More information can be found in standard document Mil-A-8625A.

Anodizing, Type III (hard)

This type is thicker and creates a wear resistant layer as well as the corrosion resistance seen with Type II. The hardness is also higher than Type II. More information can be found in standard document Mil-A-8625A.

Powder Coating

The powdered paint sprays onto a part and then put the part into an oven to bake the paint. It creates a strong and corrosion resistant layer which is more durable than standard painting. Many colors are available which can create the desired appearance.


Other types of finishes, such as inactivation etc., are available upon request.

About Shank Machining China:

Shank Precision Machining Parts Co., Ltd was founded in 2005, which is Chinese professional manufacturer of all types of machining parts since 2005, supply quality products at competitive prices. We would like to be your reliable supplier and trusted friends. Thank you for your attention!
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Address: No. 88, Lanzhou Rd, Hefei City, Anhui Province, China 
E-mail: [email protected]
Tel: +86 (0)551 6377 0991

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