Die-cast Housing Manufacturers Introduce The Requirements Of Die-casting Workpiece Processing


The melting point of aluminum alloy is lower, and the p […]

The melting point of aluminum alloy is lower, and the plasticity increases with the increase in temperature. Under the action of high temperature and high pressure, the friction of the cutting interface is large, and it is easy to stick to the knife. During processing, the cutting speed should be flexibly selected according to the material to improve the finish of the workpiece. Below, Die-cast Housing Manufacturers introduces the characteristics of aluminum alloy parts for processing die-casting workpieces:

1. Aluminum alloy parts have good plasticity, good toughness, and strong adhesion, and the chips are not easy to separate, and it is easy to adhere to the edge of the cutting edge to produce burrs during cutting.

2. Generally, the strength of the aluminum alloy is relatively low, and the workpiece is easily deformed during processing.

3. The coefficient of linear expansion of aluminum is 0.0000238, which is nearly 2.4 times larger than that of steel, which is 0.0000100. Due to the large thermal deformation, the dimensions measured during the cutting process are often not the actual dimensions of the workpiece at room temperature.

4. The hardness of the aluminum alloy material is low, and it is easy to scratch and damage the surface of the workpiece during loading, unloading, and handling.

5. Thin-walled aluminum alloy parts have higher surface roughness requirements, which are usually realized directly by finishing, while aluminum alloys are not dense, and it is difficult to meet the surface roughness requirements after milling.

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