Simple understanding of aluminum alloy casting

Aluminum alloy casting is an aluminum alloy that fills molten metal in a mold to obtain parts of various shapes. It has the advantages of low density, high specific strength, good corrosion resistance and casting processability, and less restrictions on part structure design. Aluminum alloy casting can be divided into Al-Si and Al-Si-Mg-Cu-based medium-strength alloys; aluminum-copper-based high-strength alloys; aluminum-magnesium-based corrosion-resistant alloys; Al-Re-based thermal strength alloys. Most of the heat treatment is required to achieve the purpose of strengthening the alloy, eliminating the internal stress of the casting, and stabilizing the organization and size of the parts. Aluminum alloy casting is generally used to manufacture beams, gas turbine blades, pump bodies, towers, wheels

2021-10-20

A brief understanding of the heat treatment of aluminum alloy casting

Generally, the shape of aluminum alloy casting is more complex, the thickness is uneven, the structure is coarse, and the segregation is serious. Therefore, it can only be used normally after proper heat treatment. Typical heat treatment processes include annealing, quench aging, and stable tempering. The purpose of aluminum alloy casting heat treatment is to eliminate the internal stress of the casting. Eliminate the segregation of castings, change the shape of needle-like components in the alloy structure, improve the mechanical properties of aluminum alloy, stabilize the size, structure and performance of parts at high temperature, and improve the workability of castings. Here we introduce the process of aluminum alloy casting heat treatment.

2021-10-18

Surface treatment method for aluminum alloy processing

Aluminum alloy processing is usually used for the processing of many aluminum parts, and it is also very common in our lives. However, if the surface treatment is not good during processing, it will also have a great impact on product quality. Therefore, we need to pay attention to many problems when choosing this aluminum alloy casting. So what should we pay attention to? Do you know the surface treatment technology of aluminum alloy workpieces? Let's take a look.

2021-10-14

Why aluminum alloy processing will produce deformation

In the aircraft structure, in order to reduce its own weight, a large number of thin-walled parts made of aluminum alloy processing materials, but the thermal expansion coefficient of aluminum alloy parts is large, thin-walled aluminum alloy is easy to deform. The deformation in the process of aluminum alloy processing, especially when free forging is used, the processing workload is large, and the deformation problem is more serious. The following is an analysis of the causes and solutions of aluminum alloy processing deformation, hoping to help everyone.

2021-10-13

How to prevent deformation in aluminum alloy processing

Aluminum alloy is an important industrial raw material. Due to its low hardness and large thermal expansion coefficient, it is easy to deform when processing thin-walled and thin-plate parts. In addition to improving tool performance and pre-aging treatment to eliminate the internal stress of the material, from the perspective of aluminum alloy processing technology, some measures can be taken to minimize the processing deformation of the material. For aluminum alloy parts with large aluminum alloy machining allowance, in order to create better heat dissipation conditions and reduce thermal deformation, excessive heat concentration should be avoided as much as possible. A method that can be used is symmetry processing. For example, there is a 90mm thick aluminum alloy plate that needs to be milled to a thickness of 60mm. If in milling

2021-10-11

What are the surface treatment processes for aluminum alloy processing

Aluminum alloy processing is usually used for the processing of many aluminum parts, and it is also very common in our lives. However, if the surface treatment is not good during processing, it will also have a great impact on product quality. Therefore, we must pay attention to many aspects when choosing this aluminum alloy casting. So what should we pay attention to? Do you know the surface treatment technology of aluminum alloy workpieces? Let's take a look. The coating process of aluminum alloy processing can usually be divided into spraying, powder spraying and electrophoresis. After the surface treatment of the workpiece, according to the appearance and corrosion resistance requirements of different workpieces, select the appropriate spraying process and equipment, and pay attention to the control of leveling, drying and cooling

2021-09-24

Foundry: Operation flow of low pressure casting process

Low pressure casting is the casting plant will be placed in a closed holding furnace, the cavity is connected with the molten metal in the furnace through the riser. During operation, the foundry feeds pressurized air into the furnace and the molten metal flows into the cavity from the riser. After the molten metal solidifies, the compressed air in the furnace is released, and the unsolidified metal flows back into the furnace from the riser. Many parts are manufactured using low-pressure casting technology, such as aluminum wheels and blades in the core of the torque converter. The resulting castings are dense and have good mechanical properties; the low-pressure casting process has a high yield, and the same product as gravity casting, the yield can reach 70% to 80%. High production efficiency, the same product die-casting process production efficiency is heavy.

2021-09-08

What are the surface processing processes used by foundries in low pressure casting

Low pressure casting is often used in the processing of many aluminum parts by foundries, and it is also very common in our lives. However, if the surface treatment is not good during the processing, it will also have a greater impact on the quality of the product. Therefore, there are many aspects that need to be paid attention to when the foundry chooses this kind of low pressure casting. What should we pay attention to? Let's see.

2021-08-24

A simple understanding of aluminum alloy casting

Aluminum alloy casting is to fill molten metal in a mold to obtain aluminum alloys of various shapes of parts. It has the advantages of low density, high specific strength, good corrosion resistance and casting processability, and less restrictions on part structure design. Aluminum alloy casting can be divided into Al-Si and Al-Si-Mg-Cu-based medium-strength alloys, aluminum-copper-based high-strength alloys, aluminum-magnesium-based corrosion-resistant alloys, and Al-Re-based hot-strong alloys. Most of the heat treatment is required to achieve the purpose of strengthening the alloy, eliminating the internal stress of the casting, and stabilizing the organization and size of the parts. Aluminum alloy casting is generally used in the manufacture of beams, gas turbine blades, pump bodies, pylon, hub,

2021-08-09

Method of processing aluminum alloy without deformation

Aluminum alloy is an important industrial raw material. Due to its relatively small hardness and large thermal expansion coefficient, it is easy to deform when processing thin-walled and thin-plate parts. In addition to improving tool performance and pre-aging treatment to eliminate the internal stress of the material, from the perspective of aluminum alloy processing technology, some measures can be taken to minimize the processing deformation of the material. For aluminum alloy parts with large aluminum alloy machining allowance, in order to create better heat dissipation conditions and reduce thermal deformation, excessive heat concentration should be avoided as much as possible. A method that can be employed is a symmetric process. For example, there is a 90mm thick aluminum alloy plate that needs to be milled to a thickness of 60mm.

2021-07-26