5052 aluminum alloy has high strength, especially tensile strength and fatigue strength, while maintaining good plasticity and toughness. The yield strength is between 180-230MPa and the tensile strength is up to 275MPa.
Due to the presence of magnesium, 5052 aluminum alloy has good corrosion resistance, especially to seawater and atmospheric environment, so it is commonly used in marine and aviation fields.
5052 aluminum alloy is widely used in aircraft fuel tanks, ship structures, pressure vessels, automobile bodies, pipelines, can lids, electronic equipment housings, food and beverage packaging, and furniture components.
Machining process:
1. Cold working
Cold working refers to the processing of materials at room temperature or below the recrystallization temperature, including stretching, bending and rolling processes.
Tensile: 5052 aluminum alloy has good tensile properties, can be larger deformation of the tensile processing, suitable for the manufacture of thin plate and foil.
Bending: It is suitable for bending process, the bending radius should be selected according to the thickness and strength of the material to avoid cracking of the material due to too small radius.
Rolling: 5052 aluminum alloy can be processed into plates and strips of different thicknesses by rolling process, which is suitable for mass production.
2. Hot working
Hot working refers to the processing of materials under conditions higher than the recrystallization temperature, including forging and extrusion processes.
Forging: hot forging temperature is generally between 300-400°C. After forging, cooling and heat treatment are required to ensure the mechanical properties of the material.
Extrusion: Extrusion molding process is applicable to produce a variety of complex cross-section profiles, such as pipes, bars and profiles.
3. Welding
5052 aluminum alloy has good welding performance and can be connected by various welding methods.
Gas welding: It is suitable for welding of thin plates and small structural parts, and should be cleaned and treated before welding to avoid the effect of oxide film.
Argon arc welding: widely used in 5052 aluminum alloy welding, high welding quality, suitable for thick plate and large size structural parts.
Resistance welding: applicable to the welding of thin plates, fast welding speed, high productivity.
4. Machining
5052 aluminum alloy is easy to carry out various machining processes, such as drilling, cutting and milling.
Drilling: suitable for making various holes and openings, lubrication treatment should be carried out before drilling to reduce friction and heat.
Cutting: can use mechanical cutting and laser cutting and other methods, high quality cutting, cutting edge neat.
Milling: applicable to the manufacture of a variety of complex shapes of parts, milling process should control the cutting speed and feed to ensure machining accuracy.
5. Surface treatment
Surface treatment can improve the corrosion resistance and aesthetics of 5052 aluminum alloy, common surface treatment methods include anodic oxidation and spraying.
Anodic oxidation: Through electrolytic reaction, an oxide film is formed on the surface of aluminum alloy, which improves corrosion resistance and abrasion resistance, and at the same time, it can obtain various colors of decorative effect.
Spraying: A protective layer is coated on the surface of aluminum alloy through spraying process to provide additional protection and decorative effect.
6. Heat treatment
Heat treatment can improve the mechanical and technological properties of 5052 aluminum alloy. Common heat treatment methods include annealing and solution treatment.
Annealing: Eliminate the internal stresses of the material by heating and slow cooling to improve the plasticity and toughness of the material.
Solution treatment: Improves the strength and hardness of the material through high temperature heating and rapid cooling, suitable for applications requiring high strength.