[China Aluminum Industry Network] (1) Aluminum exhibits lower strength and hardness compared to copper, but it offers better machinability. (2) During the machining process, the tool tends to stick to the material, leading to a rougher surface finish. (3) The material structure is not as dense as other metals, which can result in a less smooth surface. (4) Despite this, the tool life is generally longer due to the relatively soft nature of aluminum. (5) However, aluminum is prone to deformation during clamping and machining, which may cause scratches or damage on the workpiece surface. (6) Additionally, aluminum has a higher coefficient of thermal expansion, which can affect the dimensional accuracy of the finished product. These characteristics make aluminum a challenging material to machine, requiring careful selection of cutting tools and proper machining parameters to achieve optimal results.
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