Aluminum based alloy in general. Alloys can be used in heat treatment to obtain the good can be made into the shape of complex parts, does not need to process huge equipment, and has the advantages of saving metal, reduce cost, less working hours, according to the main component elements outside of aluminum in silicon, copper, magnesium, zinc and aluminum deformation is divided into four categories the alloy has great mechanical properties, suitable for machining deformation. According to the performance and practical characteristics of different, can be divided into hard aluminum, aluminum, aluminium and aluminium four categories. Can only help you collect these knowledge, I hope to help you! The main alloying elements copper, silicon, magnesium, zinc and manganese. Minor alloying elements such as nickel, iron, chromium, titanium, lithium and so on. Aluminum Alloy is a kind of nonferrous metal structural materials widely used in industry, has been widely used in aviation, aerospace, automotive, machinery manufacturing, shipbuilding and chemical industry. In recent years, with the The rapid development of science and technology and industrial economic structure, increasing demand of Aluminum Alloy welding, the welding research of Aluminum Alloy is also widely used in depth. Aluminum Alloy promoted the development of welding technology Aluminum Alloy, the development of welding technology and expand the application field of aluminum alloy of gold, so the welding technology of aluminum the alloy is becoming one of the hotspots in the research. The pure aluminum density (P =2.7g/m3), iron is about 1/3, the low melting point (660 C), aluminum is face centered cubic structure, so it has high plasticity (delta psi: 32~40%, production practice and scientific experiments, people gradually to join the alloy the elements and the use of heat treatment to strengthen aluminum, which has been Aluminum Alloy. A series of high strength alloy, can add a certain elements in the form of the advantages of pure aluminum and sigma B respectively is 24 ~ 60kgf/mm2. The "strength" (strength and the ratio of the proportion of b/ sigma rho) more than a lot of steel structure become an ideal material, widely used in machinery manufacturing, transport machinery, power machinery and aviation industry, the aircraft fuselage, skin, often to Aluminum Alloy compressor manufacturing, in order to reduce weight. The welding of aluminum alloy instead of steel material, the structure can reduce the weight of more than 50%. Aluminum Alloy density is low, but the intensity is relatively high, close to or exceed the quality of steel, plastic, can be processed into various shapes, excellent electrical conductivity, thermal conductivity and corrosion resistance, widely used in industry, the use of the second steel. Good mechanical properties, physical properties and corrosion resistance. According to the chemical composition can be divided into Aluminum Alloy casting Al Si alloy, Al Cu alloy, aluminum magnesium alloy, aluminum zinc alloy and aluminum alloy, the aluminum silicon alloy and aluminum silicon alloy (not simple Heat treatment, low mechanical property, good casting properties), special aluminum silicon alloy (strengthened by heat treatment, high mechanical properties, good casting properties). Aluminum Alloy processing methods can be divided into deformation Aluminum Alloy and casting Aluminum Alloy. Mechanical properties of cast Aluminum Alloy as deformation Aluminum Alloy, but cast aluminum the alloy has good casting properties, Aluminum Alloy material of various forms and specifications. Mainly used in the manufacture of aviation equipment, building doors and windows. Aluminum Alloy processing methods can be divided into Aluminum Alloy deformation and deformation. Aluminum Alloy casting aluminum: 70~90%), easy processing, can be made into various sections and plates. The corrosion resistance performance is good; but the pure aluminum strength is very low, the annealed state sigma B is about 8kgf/mm2, it is not as a structural material. To achieve long-term through strengthening, it mainly includes the high pure aluminum, industrial high pure aluminum, pure aluminum and rust proof aluminum. Heat treatment strengthening aluminum alloy can be by means of quenching and aging heat treatment to improve the mechanical properties, it can be divided into aluminum, aluminum forging, super hard aluminum and special aluminum alloy etc.. Some aluminum alloy aluminum is divided into two categories: cast aluminum alloy, used in the as cast condition; deformation of aluminum alloy, withstand pressure processing,. Can be processed into alloy is not heat treatment strengthening type aluminum alloy and aluminum alloy strengthened by heat treatment. Heat treatment strengthening type not by heat treatment to improve the mechanical properties, only through the cold processing deformation