Because of light weight aluminum, plasticity, widely used in household items and industrial supplies. With customers reflect, aluminum products processing often less than the original design requirements, Caixin aluminum past experiences and found that in addition to aluminum products processing factors into the design itself on the quality of the pieces have a great impact.

Affect one, because the low melting point alloy can be produced using a variety of casting aluminum alloy castings. Therefore, in the design of their structure, the first in what should be considered the castings foundry casting methods, in order to consider the appropriate process of the structure.

Impact 2008, aluminum alloy castings should be adopted in thin-walled structures, and strive to uniform thickness, which prevents Shrinkage, improve the strength of the metal casting is beneficial to both. But for uneven wall thickness needs to be set riser feeding of aluminum alloy castings, we can use thicker certain parts in order to achieve favorable feeding solidification to ensure quality.

Affect three suction easily oxidized aluminum, density (less than steel, cast iron small 2/3 to 3/4) so ​​that the molten metal static pressure is small, difficult to exhaust. Thus, the aluminum alloy casting is easy to produce oxidized slag pores and reduce the mechanical properties and air tightness in the casting structure should be designed to avoid the horizontal plane, the transition to be flat, without causing turbulence in the liquid metal.

Affect four, because the low melting point alloy, there is a certain air tightness requirements for castings, casting structure design, special attention should be considered to avoid the use of chaplets fixed core, or chaplets and casting body does not fused, will drain oil leak.

V. Policy aluminum alloy wire since large shrinkage, low elastic modulus, the local stress concentration sensitive, so the casting and the use of deformation and cracks easily, for structural design of the casting should also be noted:

① The moment of inertia of larger-shaped, trough and box-shaped cross-sectional shape to enhance the casting wall.

② structure and shape of the ribs should be appropriate, otherwise the edge of the rib is easy to produce a large stress concentration, in addition, the ribs should not be too thick, or in connection with the wall is easy to produce shrinkage shrinkage.

③ To avoid generated at the edge of the hole should concentrate should be strengthened, such as the use knurled strengthened.

④ The wheel-shaped castings used to enhance the reinforcing rib plate hub and spoke connection is often used between the casting wall thickened wall with a tapered connection.

⑤ For thin-walled castings can be ribbed or stepped cross-section to enhance; mutual avoid using distance and large diameter bolts aluminum alloy castings, otherwise due to localized excessive force arising Zhai shadow. More reasonable casting design should be using a larger number of small-diameter bolts to fasten the castings, so that each bolt tightening force dragonfly: does not cause a softer deformed aluminum alloy castings, in addition you can also use a larger nut washer to reduce Piao mother right bosses pressure.

⑥ try to make castings suffered