Motorcycle magnesium alloy forging is an important material for motorcycle engine and other key components. Its material selection and ratio optimization play an important role in ensuring the performance and safety of motorcycle. In this paper, the material selection and ratio optimization of motorcycle magnesium alloy forgings will be discussed in detail.
First, material selection:
- Tensile strength: Motorcycle magnesium alloy forgings need to have sufficient tensile strength to withstand the huge stress under the high temperature and high pressure environment when the engine is working. Commonly used materials are AZ31, AZ61, AZ80 and ZK60, among which AZ series alloys have high tensile strength.
- Heat resistance: The working temperature of the motorcycle engine is high, so the material of magnesium alloy forgings needs to have good heat resistance. ZK60 alloy is widely used in the manufacture of motorcycle engine parts because of its good high temperature resistance.
- Corrosion resistance: In the process of motorcycle driving, parts are easy to contact with water, oil, salt spray and other corrosive media, so the material of magnesium alloy forgings needs to have good corrosion resistance. Adding a certain proportion of aluminum, zinc, manganese and other elements to commonly used magnesium alloys can improve the corrosion resistance of the materials.
- Processing performance: The processing performance of the material directly affects the forming effect and dimensional accuracy of the forging. Choosing magnesium alloy material with good plasticity and malleability can make the forging process more smooth.
- Ratio optimization:
- Aluminum content: Aluminum is one of the commonly used magnesium alloy strengthening elements, and a moderate increase in aluminum content can improve the strength and hardness of magnesium alloy. However, too high aluminum content will lead to a reduction in the plasticity of the alloy, so the aluminum content should be balanced according to the specific requirements of use when the ratio is optimized.
- Zinc content: Zinc is one of the commonly used magnesium alloy strengthening elements, and appropriate zinc content can improve the tensile strength and corrosion resistance of magnesium alloy. However, excessive zinc content will reduce the thermal stability of magnesium alloy, so it is necessary to control the zinc content when the ratio is optimized.
- Other alloying elements: In addition to aluminum and zinc, an appropriate amount of manganese, titanium, chromium and other elements can be added to further improve the performance of magnesium alloys. These elements can improve the corrosion resistance, thermal stability and mechanical properties of the material.
Through the above discussion on the material selection and ratio optimization of motorcycle magnesium alloy forgings, we can better understand how to choose the right material and optimize the ratio to ensure that magnesium alloy forgings have good tensile strength, heat resistance and corrosion resistance. In actual production, we should according to the specific motorcycle model and the use of the environment, comprehensive consideration of various factors, accurate selection of materials, and the necessary ratio optimization, in order to meet the motorcycle magnesium alloy forging in the high temperature and high pressure environment working requirements, to ensure the performance and safety of the motorcycle.
