CNC Machining Surface Finish We Offer

Dec 24, 2024

CNC precision machining parts can be finished in many ways that may cover purely aesthetic finishes or offer some form of protection to the part. Finishes should beautify, enhance sophistication and functionality of any part. Our CNC-manufactured part maybe finished in any of the following options:

·Standard/As manufactured

Machined parts are left as manufactured. There will be visible tooling marks on the part.

· Bead blasting

A surface smoothing operation that involves the direction of fine glass beads at a part’s surface under high pressure. Bead blasting creates a smooth, uniform surface finish on the part.

· Sanding

A surface smoothing and polishing method done with the aid of a sandpaper or sand. The size of the pores in the sandpaper determines the type of smoothness achievable.

· Anodizing

An electrolytic passivation process used to increase the thickness of the natural oxide layer on the surface of the part. This can be used for decorative, anti-corrosion or surface hardness treatments. Anodizing is most common with aluminium parts.

· Painting

3D printed parts may be masked and spray-painted to any colour with automotive quality paints after sanding and polishing have been carried out to smoothen the surface.

· Chrome-plating

This involves the deposition of a thin chromium layer onto a metal part through an electroplating process. The chromium layer may serve decorative functions, make the part anti-corrosion or improve the surface hardness.

Electroplating (such as Nickel plating) is used to improve the strength and durability of metallic parts.

· Electropolishing

An electrochemical process used to remove some material from the finished workpiece in order to reduce surface roughness and enhance the surface finish.

· Brushing

Brushed machined parts have a satin-like, one-direction finish. It is achieved by using a grit belt or wheel, non-woven abrasive belt or pad to produce a polished finish in a metal part.

· Polishing

Used for creating high-quality surface finish in CNC machined parts. Before polishing, parts should be sanded and smoothed to ensure that final surface looks and fees as intended.

· Texturing

Texturing helps to enhance the ergonomics, cosmetics and weather resistance. It is used to give machined parts improved grip, reduce their slipperiness and mimic certain textures.