[China Aluminum Industry Network] (1) Aluminum exhibits lower strength and hardness compared to copper, but it offers better machinability. This makes it more suitable for certain cutting and shaping processes. (2) During machining, the tool tends to stick to the material, which can lead to a rougher surface finish on the cutter. (3) The internal structure of aluminum is not as dense as that of other metals, which may result in a slightly rougher surface after processing. (4) Despite these challenges, aluminum typically allows for a longer tool life due to its relatively soft nature, reducing the frequency of tool changes. (5) However, aluminum is prone to deformation during clamping and machining, which can cause scratches or imperfections on the workpiece surface. (6) Additionally, aluminum has a higher coefficient of thermal expansion, meaning it expands more when heated, which can affect the dimensional accuracy of the final product. These characteristics require careful handling and precise control during the manufacturing process to ensure high-quality results.
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