Introduction of 5 common processes for aluminum alloy parts processing

Aluminum alloy is obtained by adding other metal elements to metal aluminum to obtain a metal alloy, such as silicon, iron, copper, aluminum, etc. The aluminum alloy obtained by adding other metals has the characteristics of low density, high strength, and corrosion resistance. It is light and portable. The characteristics of aluminum alloy and strength have made aluminum alloys widely used in the processing and manufacturing of various parts. For example, it is not difficult to see the existence of aluminum alloy parts in technology and life such as automobile wheels and aviation parts. What are the common processes for processing aluminum alloy parts? 1. Machining of aluminum alloy parts, also known as CNC processing, automatic lathe processing, CNC lathe processing, etc. (1) Machining mold parts with general machine tools such as turning, milling, planing, drilling, and grinding, and then performing necessary fitter repairs and assembly Into various molds. (2) For mold parts with high precision requirements, it is difficult to guarantee high machining accuracy only with ordinary machine tools, so precision machine tools are required for processing. (3) In order to make mold parts, especially punches with complex shapes, the processing of concave model holes and cavities more automated, the triangular iron core winding machine reduces the workload of fitter repair and requires the use of CNC machine tools (such as three-axis CNC milling machines) , Machining centers, CNC grinders and other equipment) processing mold parts. 2. Stamping of aluminum alloy parts. Stamping relies on presses and dies to apply external force to plates, strips, pipes and profiles, causing them to be plastically deformed or separated, so as to obtain the required shape and size of the workpiece (stamping). processing methods. Stamping is a production technology that uses the power of conventional or special stamping equipment to directly subject the sheet to the deformation force and deform in the mold, so as to obtain product parts with a certain shape, size and performance. Sheet materials, molds and equipment are the three elements of stamping processing. Stamping is a metal cold deformation processing method, so it is called cold stamping or sheet stamping, or stamping for short. It is one of the main methods of metal plastic processing. 3. Precision casting of aluminum alloy parts. Precision casting belongs to special casting. The parts obtained by this method generally do not need to be machined. Such as investment casting, pressure casting, etc. Precision casting is a casting method compared to the traditional casting process. It can obtain relatively accurate shapes and high casting accuracy. The more common method is: first design and make a mold according to product requirements (with very small margin or no margin), use casting method to cast wax to obtain the original wax mold; repeat coating and sanding on the wax mold Process, harden the shell and dry; then melt the wax mold inside to dewax and obtain a cavity; roast the shell to obtain sufficient strength; cast the required metal materials; clear the sand after shelling to obtain High-precision finished product. According to product needs or heat treatment and cold processing. 4. Powder metallurgy of aluminum alloy parts. Powder metallurgy is a technology for manufacturing metal powders, and using metal powders (sometimes with a small amount of non-metal powders) as raw materials, through mixing, forming and sintering, to manufacture materials or products. It includes two parts, namely: (1) Manufacturing metal powder (also includes alloy powder, hereinafter collectively referred to as 'metal powder'). (2) Using metal powder (sometimes also adding a small amount of non-metal powder) as raw materials, after mixing, forming and sintering, manufacturing materials (called 'powder metallurgy materials') or products (called 'powder metallurgy products'). 5. Injection molding of aluminum alloy parts uniformly mix the solid powder with the organic binder. After granulating, it is injected into the mold cavity with an injection molding machine under the state of heating and plasticization (~150℃) to be solidified, and then chemically or thermally The decomposition method removes the binder in the formed blank, and finally sinters and densifies the final product. Compared with traditional technology, it has the characteristics of high precision, uniform organization, excellent performance, and low production cost. Its products are widely used in electronic information engineering, biomedical equipment, office equipment, automobiles, machinery, hardware, sports equipment, clocks and watches, Industrial fields such as weapons and aerospace. Of course, in addition to the five common aluminum alloy parts processing methods introduced above, there are special processing, laser processing, electric discharge processing, ultrasonic processing, electrochemical processing, particle beam processing, and ultra-high-speed processing. I will not list them one by one here. In addition to the process of forming aluminum alloy parts mentioned above, the processing of aluminum alloy parts also involves surface treatment processes, including anodizing, electroplating, etching and so on. Related news: The characteristics of the main materials of stamping parts, the treatment of common problems of stamping parts, the characteristics of scaffolding stamping parts and the importance of inspections