Aluminum alloy precision castings are an important high-strength and lightweight material, widely used in aerospace, automotive, electronics, and other fields. This article will introduce the molding process and performance research of aluminum alloy precision castings.
1、 Forming Technology of Aluminum Alloy Precision Castings
Vacuum investment casting technology
This technology uses a ceramic mold to inject aluminum alloy melt into the mold under vacuum conditions, and after cooling and solidification, components are formed. This technology can produce high-precision, high-quality aluminum alloy precision castings, and can reduce problems such as oxidation and impurities.
Investment casting technology
This technology uses a metal mold to inject aluminum alloy melt into the mold under high temperature conditions, and then forms components after cooling and solidification. This technology can produce large and complex shaped components, but it is also prone to defects and deformation issues.
Low pressure investment casting technology
This technology involves injecting aluminum alloy melt into a pre prepared ceramic mold, and then compacting the aluminum alloy liquid under vacuum or pressure conditions. This technology can reduce problems such as oxidation and impurities, and can produce components with complex shapes, but it also has problems such as high manufacturing difficulty.
2、 Study on Properties of Aluminum Alloy Precision Castings
1. Strength and hardness
Aluminum alloy precision castings have good strength and hardness, which can meet the use requirements under complex stress environments. At the same time, the strength and hardness of aluminum alloy precision castings are also related to factors such as their composition, processing technology, and surface treatment.
2. Corrosion resistance
Aluminum alloy precision castings have excellent corrosion resistance and can be used for a long time in harsh environments. This is mainly due to the excellent oxidation and corrosion resistance of aluminum alloys themselves, and surface treatment can also be used to enhance their corrosion resistance.
3. Thermal stability
Aluminum alloy precision castings have good thermal stability and can be used for a long time in high temperature environments. This is mainly due to the good thermal conductivity and coefficient of thermal expansion of aluminum alloys, making them have better thermal stability.
4. Weldability
Aluminum alloy precision castings have good weldability and can be easily connected and assembled. This is mainly due to the good conductivity and melting point of aluminum alloys, making them more solderable.
3、 Research Direction of Aluminum Alloy Precision Castings
1. Basic material performance research
The performance of aluminum alloy precision castings is affected by multiple factors such as material composition and processing technology. Therefore, it is necessary to deeply study the basic material properties and interaction mechanisms for different materials and processing processes.
Post time: Mar-22-2023
