extruded aluminum rectangular tubing.A necessary choice when making high-precision aluminum alloy die casting parts

　　Now the aluminum alloy die-casting more and more precision, but the high-precision die-casting is not so good to do, although the casting performance of the die-casting aluminum alloy is very good, can die casting a variety of more precise die-casting, but in order to really achieve high precision, or need to carry out a variety of post-processing, cnc is to improve the dimensional accuracy of aluminum alloy die-casting parts must be selected processing technology.

　　When aluminum alloy die casting is engaged in cnc processing, due to the particularity of the material and process, several points need to be paid attention to, if we do not notice, then the aluminum alloy die casting is damaged. One is the control of the feed amount, which needs to be controlled as small as possible; The second is to choose the right cutting fluid; The third is to minimize the damage to the dense layer, the surface of the aluminum alloy die casting is a thin dense layer, the thickness is about 1 mm, and the dense layer below is a loose porous organizational structure, like bread.

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