Today, I will mainly introduce you to the processing technology of forging aluminum alloy. It mainly includes aluminum alloy free forging technology, aluminum alloy die forging technology, aluminum alloy forging heat treatment, commonly used aluminum alloy forging equipment, new aluminum alloy forging technology and information technology. Forging is used in the process of aluminum alloy processing, so what is aluminum alloy forging?
All-aluminum light alloy aluminum alloy forging is to use the plasticity of the material to produce plastic deformation with the help of external force to obtain forgings with the required shape, size and certain structural properties. Advantages: Forgings are dense and uniform in structure, and their performance is higher than die-casting, cutting and welding parts. Disadvantages: requires a large deformation force. What everyone needs to pay attention to is the forging technology and classification, which are mainly divided into warm forging technology and cold forging technology.
Introduction to warm forging: warm forging is a plastic forming process with little chips and no chips developed on the basis of cold forging. The temperature is usually above room temperature and below the recrystallization temperature. Ferrous metals: 200~850C; Non-ferrous metals: room temperature~350C
The characteristics of warm forging: It combines the advantages of cold forging and hot forging, while reducing their respective shortcomings. Compared with cold forging
1. Warm forging blank has small deformation force and easy forming;
2. The large amount of deformation can reduce the number of processes, mold costs and press tonnage, and the life of the mold is higher than that of cold forging;
3. There is no need for pre-softening of blanks and annealing between procedures, which makes continuous production easier than cold forging.
Introduction to cold forging: cold forging technology belongs to the volume plastic forming of metals at room temperature. There are two main forming methods: cold extrusion and cold heading. For example, screws, rivets, etc. are cold heading. Difference: The maximum size of the cold extrusion part is basically the same as the outer diameter of the blank; the maximum size of the upsetting or upsetting workpiece is larger than the outer diameter of the blank
The characteristics of cold forging: material saving, high efficiency and high quality of parts, including high dimensional accuracy, low surface roughness, can reduce or eliminate machining and grinding procedures, and sometimes can omit heat treatment.