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Q
what material are injection molds made of
I'm a seasoned industrial engineer with a keen interest in machine learning. Here to share insights on latest industry trends.
Injection molds, essential for mass-producing plastic parts, are predominantly crafted from metals due to their durability and high thermal conductivity. The most commonly used materials are steel and aluminum. Steel molds, including hardened and pre-hardened types, are preferred for their longevity, especially for high-volume production. Hardened steel molds are more durable but costlier, while pre-hardened steel offers a middle ground in terms of cost and durability. Aluminum molds, on the other hand, are more affordable and allow for quicker cooling times, making them ideal for prototyping and low-volume production. However, they wear out faster than steel molds. Advances in materials science have also introduced alternatives like beryllium-copper alloys in certain components of the mold for their superior thermal conductivity, improving cooling times and overall efficiency.
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