1. The high temperature deformation resistance of various aluminum alloys varies greatly. The deformation resistance (also known as flow stress) of aluminum alloys varies significantly with different components. Some low-strength aluminum alloys and medium-strength aluminum alloys, such as 6000 series aluminum alloys, have low high-temperature deformation resistance, while high-strength aluminum alloys, especially ai-zn -mg-cu aluminum alloy, such as 7000 series aluminum alloy, has high high temperature deformation resistance, for example, the strength limit of wrought aluminum 2a50 aluminum alloy at 500 degrees Celsius is 20mpa, while the strength limit of duralumin 2a12 aluminum alloy at 500 degrees Celsius is 40mpa. The forging deformation load is about 2 times different.



2. Most commonly used deformed aluminum alloys have lower room temperature deformation resistance than carbon steel, but there are three types of high temperature deformation resistance: lower than carbon steel, equivalent to carbon steel, and higher than carbon steel.


3. The deformation resistance of aluminum alloy is very sensitive to temperature (changes rapidly with the increase or decrease of temperature): as the temperature decreases, its high temperature deformation resistance increases rapidly, faster than carbon steel. The growth rate of the high temperature strength limit is faster than that of the alloy structural steel when the carbon steel is dry. The temperature of the carbon steel and the low alloy structural steel decreases by 100 degrees Celsius, and the strength limit increases by about 50%. While the temperature of the aluminum alloy drops by 50 degrees Celsius, the strength limit increases by 50% to 300%. Therefore, the aluminum alloy, Jiahang aluminum alloy forging means that the aluminum alloy with a high degree of alloying cannot be forged at the low temperature, so the aluminum alloy forging temperature The range is narrow and the operation should be quick. The deformation resistance of aluminum alloy die forging determines the strength limit of the material itself, the processing conditions and the complexity of the forging.