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Surface Machining Technologies For Aluminum And Aluminum Alloys
Jun 08, 2018

Three major surface machining technologies for aluminum and aluminum alloys.

 

1. Sandblasting (blasting)

Use the impact of high-speed sand flow to clean and roughen the metal surface. This method of aluminum surface treatment enables the workpiece surface to obtain a certain degree of cleanliness and different roughness, so that the mechanical properties of the workpiece surface is improved, thus improving the fatigue resistance of the workpiece, increasing the adhesion of between it and the coating, prolongs the durability of the coating, and also contributes to the leveling and decoration of the coating. This process we often see in Apple's various products, as well as more and more used by the existing TV face or middle frame.

 

2. Polishing

The use of mechanical, chemical or electrochemical methods to reduce the surface roughness of the workpiece to obtain a bright, smooth surface processing methods. The polishing process is mainly divided into mechanical polishing, chemical polishing and electrolytic polishing. The aluminum parts adopt mechanical polishing and electrolytic polishing to approach the effect of stainless steel mirrors, giving the impression of high-end simplicity and fashion (of course, easy to leave fingerprints but also more care).

 

3. Brushed

Metal wire drawing is a manufacturing process in which aluminum plates are repeatedly scraped off with sandpaper. Drawing can be divided into straight drawing, chaotic drawing, spiral drawing, thread drawing. Metal processing WeChat, content is good, worthy of attention. The metal wire drawing process can clearly show every tiny silk mark, so that the matt hair in the metal matt gives off a fine hair gloss. The product has a sense of fashion and technology.