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Aluminum density, light weight. The plasticity of pure aluminum is Gao, various pressures can be processed, but the strength of aluminum is low, can not do structural material, it was discovered that the aluminum alloy by adding an appropriate amount of certain elements, and then made of aluminum alloy by cold or heat, can be large magnitude to mention Gao strength. Intensity limit can be increased to 50 to 60 kg / mm, equivalent to the intensity of low-alloy steel with aluminum for light weight, strength Gao, good electrical and thermal conductivity, ease of processing distortion, non-toxic and environmentally friendly features such as excellent, and the aluminum-rich, and therefore the use of aluminum and its alloys is quite extensive. Study with high strength, high toughness aluminum-copper alloy aluminum is currently a hot research field. Aluminum is the most common alloying elements added to copper (Cu), magnesium (Mg), silicon (Si), manganese (Mn>, zinc (Zn), in a variety of aluminum alloys, Al-Cu alloys with more Gao's potential toughening by melting aluminum casting foundry process has been due to low gas content, can be cast through the full solution treatment to achieve solid solution strengthening of alloying elements, to mention Gao alloy mechanical properties after solution treatment they can be time-enhanced, and further enhance the strength and hardness of the casting Gao. In this experiment, aluminum-copper alloy for the study by melting Al-50% Cu alloy and pure aluminum to be 5% of the copper alloy, the casting will be through different times of the solid solution and aging treatment, by observing the microstructure, heat treatment time to get the organization and performance of the alloy the influence of the words: aluminum-copper alloy, melting, solution treatment, aging treatment.

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Aluminum density is small, light quality. The plasticity of the pure aluminum cover can be very different pressure, processing, but the pure aluminum of low intensity, and can't do structural material, people found to join the amount of some of the aluminum alloy elements, then through processing or heat treatment is made of aluminum alloy, can greatly carry high strength. Intensity limit can raise to 50 ~ 60 kg/square millimeter, equivalent to the strength of the low alloy steel
Aluminum alloy because of its cover is qualitative light, intensity, good thermal conductivity of conductive, easy machining deformation, avirulent environmental protection and characteristic of good, and rich resources, thus aluminum and aluminum alloy use is quite extensive. Research has high strength, high toughness of aluminum alloy copper alloy is the research field of the popular.
The most often join of aluminum alloy element is (Cu), copper magnesium (Mg), silicon (Si), manganese (Mn >, zinc (Zn), in all kinds of aluminum alloy, Al-Cu alloy with a cover of the potential of fortitude. Through the smelting casting process get aluminum alloy castings, due to the low gas content, can pass on casting full solid solution treatment to realize the alloy element solid solution strengthening, carry high alloy mechanics performance. Solid solution treatment and through the time after strengthening, further carry high strength and hardness of the casting. The experiments to aluminum copper alloy as the research object, by melting Al-50% Cu alloy and pure aluminum get 5% of the aluminum alloy contain copper, will get through the different time of the castings of solid solution and aging heat treatment, through the observation, time to get heat treatment metallographic organization and performance of the alloy of the influence law.
Keywords: aluminum alloy, copper smelting, solid solution treatment, aging treatment.

Aluminium is small in density with light quality. Pure aluminium possesses high plasticity thus could be fabricated under pressures, yet is low in intensity, which makes it unable to be served as a structure material. It is discovered that mixture with some alloying elements in appropriate amount following with cold/hot machining to be made into alufer(或：aluminium alloy) may improve its density significantly. Thereon the density extreme of it could be raised to 50 to 60 kilograms per square millimeter, equaling to high-intensity aluminum alloy made from low alloy steel.
With superiorities as light quality, high intensity, good electrical/temperature conductivity, easiness to be fabricated/transformed, innocuity besides environment friendliness, etc, and being abundant in resource, applications of aluminium as well as its alloy cover a large range. Therefore, it is, as for research on aluminium alloy at present, a major topic to study aluminium-copper alloy with high intensity plus good tenacity.
Those alloying elements mostly added are copper(Cu), magnesium(Mg), silicon(Si), manganese(Mn) and zinc(Zn). Among alufers, Al-Cu system alloys have high potential of toughness. Aluminium alloy foundries are made with smelting and casting techniques and, considering gas content at low level, solution strengthening for alloy elements can be achieved while mechanical properties of the alloy could be improved by sufficient solution treatment for the foundries. Then intensity and rigidity of the foundries may be further improved with aging strengthening after solution treatment. This study does get aluminium alloy contained with 5% of copper through smelting Al-50%Cu alloy and pure aluminium, taking as aluminium-copper alloy as subjects and, reach to impact regulations of hot-machining time(或：period) on the texture and properties of the alloy through observation for metallographic phase.
Keywords: aluminum-copper alloy, smelting, solution treatment, aging strengthening

供参。

Aluminum density, quality of light. Plasticity of pure aluminium is Gao, can be processed in all kinds of pressure, but the low strength of pure aluminium, cannot do the structural materials, aluminum in the was found to add appropriate amount of some alloying elements, then made aluminum alloy with cold or heat treatment, can be substantial Gao strength. Strength limit value can be increased to 50 towns of 60 kg/square millimeter, equivalent to the strength of low alloy steel
Aluminum alloys for Gao has a light, strength, good electric conductivity thermal conductivity, ease of machining deformation, non-toxic environmental protection and other excellent features, and aluminum is rich in resources, which is the use of a wide range of aluminum and its alloys. Study on aluminum-copper alloy with high strength, high toughness is one of today's field of study on aluminum alloy hot.
Aluminium alloying element is most often join in copper (Cu), magnesium (Mg), Silicon (Si), manganese (Mn, Zn (Zn), in a variety of aluminum, of Al-Cu alloy with a toughening of Gao potential. By melting-casting process of aluminum alloy castings, due to low gas content, you can by full casting solution to implement elements of solid solution strengthening, Gao alloy's mechanical properties. After solution treatment and through the strengthening of limitation, Gao further strength and hardness of the castings. This experiment for the study of aluminum-copper alloy, received from melting Al-50%Cu alloy and aluminum 5% aluminum alloy containing copper, will be cast solid solution and aging at different time after heat treatment, by observing the metallographic, get time of heat treatment on microstructure and properties of alloy influence.
Key words: aluminum-copper alloy, smelting and solid-solution treatment and aging.

Aluminum density is small, light quality. The plasticity of the pure aluminum cover can be very different pressure, processing, but the pure aluminum of low intensity, and can't do structural material, people found to join the amount of some of the aluminum alloy elements, then through processing or heat treatment is made of aluminum alloy, can greatly carry high strength. Intensity limit can raise to 50 ~ 60 kg/square millimeter, equivalent to the strength of the low alloy steel
Aluminum alloy because of its cover is qualitative light, intensity, good thermal conductivity of conductive, easy machining deformation, avirulent environmental protection and characteristic of good, and rich resources, thus aluminum and aluminum alloy use is quite extensive. Research has high strength, high toughness of aluminum alloy copper alloy is the research field of the popular.
The most often join of aluminum alloy element is (Cu), copper magnesium (Mg) ?