Surface Finishing for Machining Parts

Surface finishing is a wide industrial process that alters the surface of manufactured parts to achieve specific properties. Surface treatment processes can be used to: improve appearance, adhesion , wetting, solderability , corrosion resistance, chemical resistance, abrasion resistance, hardness, and also can change electrical conductivity, remove burrs and other surface imperfections, control surface roughness. In some cases, these techniques can also be used to restore the repaired parts to their original dimensions.

Electroplating

Electroplating is a process by using the principle of electrolysis to plate a thin layer of certain metals or alloys on the surface of other metals , which uses the electrolysis to make metal or other materials attached with a layer of metal film, so as to prevent the metal from oxidizing (rusting for example), to improve the wear resistance, electrical conductivity, reflectivity, anti-corrosion, and to increase the aesthetics. Usually, the electroplating including the process listed as below:

1. Zinc plating

2. Tin plating

3. Nickel plating

4. Silver plating

5. Gold plating

6. Chrome plating

7. Customized plating

Coating

Coating is a kind of surface treatment, it can also be understood as oxidation treatment of various colors. such as:

1. Blackening

2. Bluing

3. Electrophoresis

Painting

Painting is a very flexible way to create a different surface appearance. We can achieve:

1. Matte

2. Texture

3. Other painting

Surface marking

There are various ways to create a logo, symbol, and text on your prototypes or production parts. We can offer:

1. Laser Engraving

2. Silk-Screen

3. Pad Printing

Alodizing

The most popular way to create a decent surface for electronic products. It improves corrosion protection, surface hardness, wear resistance, aesthetic appearance and the adhesion of paints and primers. It also reduces electrical conductivity, helps to dissipate heat and reduces surface reflection. We are offering:

Anodized Type 1 (oxide film thickness ＜5µm)

Anodized Type 2 (5µm＜oxide film thickness ＜30µm)

Anodized Type 3 (30µm＜Oxide film thickness ＜120µm)

Surface brushing

Surface brushing is a post-processing method, which achieves decorative effect by grinding, and forms a rope pattern on the surface of the item, which can reflect the texture of the metal material. This process is usually used in the production of home appliance panels, peripherals and panels of various digital products, and various logos on notebook panels.

Commonly used materials have thicknesses of 0.125, 0.175, 0.254, 0.38, 0.5, 0.8 or 1.0mm with a transmittance of 90%.

Polishing

Polishing is a processing method to reduce the surface roughness of pieces with mechanical, chemical or electrochemical effects to obtain a bright and smooth surface. The workpieces are generally finished and processed with polishing wheel and abrasive particles or other polishing media for the purpose of smooth surface or objective gloss.

Sandblasting

Sandblasting is a process for surface treatment of workpieces. Using compressed air as power, the spray material is sprayed onto the surface of the workpiece at high speed, so that the appearance or shape of the workpiece surface changes, and a certain degree of cleanliness and different roughness are obtained. Improve the fatigue resistance of the workpiece, increase the adhesion between it and the coating, prolong the durability of the coating film, It is also beneficial for the leveling and decoration of paints.

Tinting

Tinting is another option for color plastic prototypes besides painting. for example , It is a good solution for turn signal, tail lamp. Material suit for tinting:

1. ABS

2. PMMA

3. PC

4. PS

Surface heat treatment

Heat treatment is a metal thermal working process in which the material is heated, insulated and cooled in a solid state to obtain the desired structure and properties. we can offer that：

1. Partial surface quenching parts

2. Whole surface quenching parts