What is metal brushing and how it works?
It is made by polishing the metal with a 120-180 grit belt or grinding wheel and then softening it with 80-120 grit oil-free compounds or medium non-woven belts or pads.
Typical brushed metals include stainless steel, aluminum and nickel. Brushed finishes are popular in small home appliances and white furniture, and they have characteristics in architecture and car design. The strength of the drawn finish is designated as the surface roughness.
The brushing gives the metal a unique appearance because it retains some metallic luster, but not all have a metallic luster and has a very fine line pattern parallel to the brushing direction.
Brushed finishes are vulnerable to damage. Brushed finishes also often have an adverse effect on corrosion resistance. In particular, the texture of the drawing limits the ability of the fluid to curl on the surface of the material. In the case of stainless steel, the finished groove can accumulate chloride ions, which decompose the chromium oxide passivation layer and cause rust to occur.
However, brushing is commonly used to get a smooth and perfect surface for some metal parts, for example, some aluminum parts need to be brushed before anodizing to remove the machining marks .
Pls feel free to contact us if you need custom aluminum parts with brushing process.