Process knowledge of aluminum processing

Aluminum is the most widely used metal material among non-ferrous metals. There are many types of aluminum products. According to statistics, there are more than 700,000 types of aluminum products, which are in demand from various industries such as construction, transportation, and aerospace.

Features and advantages of aluminum

  • Low density
  • High plasticity
  • Preservative
  • Easy surface treatment
  • Strong electrical conductivity, easy to recycle

Processing of aluminum products

  • Stamping of aluminum products
  1. Cold stamping

Use material aluminum pellets. The extrusion machine and the mold are used for forming at one time, which is suitable for columnar products or product shapes that are difficult to achieve by the stretching process, such as oval, square, and rectangular products.

  1. Drawing

Use material aluminum skin. The continuous mold machine and the mold are used for multiple deformations to meet the requirements of the shape, which is suitable for non-cylindrical bodies.

Surface treatment of aluminum products

  • Surface Finish
  1. Sandblasting

The process of using the impact of high-speed sand flow to clean and roughen the metal surface. The surface treatment of aluminum parts in this method can make the surface of the workpiece obtain a certain degree of cleanliness and different roughness, and improve the mechanical properties of the workpiece surface, thus improving the fatigue resistance of the workpiece and increasing the gap between it and the coating. The adhesion force extends the durability of the coating film and is also conducive to the leveling and decoration of the coating.

  1. Polishing

The use of mechanical, chemical, or electrochemical effects to reduce the surface roughness of the workpiece to obtain a bright, smooth surface processing method. The polishing process is mainly divided into Buffing, chemical polishing, electropolishing.

  1. Superficial wiredrawing

Metal wire drawing is the manufacturing process of repeatedly scraping aluminum plates out of lines with sandpaper. Wire drawing can be divided into straight wire drawing, chaotic wire drawing, swirling wire drawing, and thread drawing. The metal wire drawing process can clearly show every minute wire mark so that the metal matte shine with fine hair luster.

  1. anodic oxidation

Anodization refers to the electrochemical oxidation of metals or alloys. Aluminum and its alloys form an oxide film on the aluminum product (anode) under the action of an external current under the corresponding electrolyte and specific process conditions. Anodizing can not only solve the defects of aluminum surface hardness and wear resistance but also extend the service life of aluminum and enhance its aesthetics. It has become an indispensable part of aluminum surface treatment and is currently the most widely used and very successful process.

What we can do

CNC machining is one of the major business scopes in RJC. We have a professional technical service team. The team leader Julie has extraordinary communication skills and years of rapid manufacturing industry experience. She can immediately understand the process of manufacturing parts according to your drawings. She can work with the engineering team to solve all your concerns and meet 100% expectations. As a member of RJC, she can provide you with the best service.