Aluminum die casting is a popular manufacturing process for precisely producing metal parts with complex geometries, smooth surfaces, and high dimensional accuracy. In die casting, molten aluminum is injected under high pressure into reusable molds, called dies, to form the desired part shape. The material used to make the die is crucial for achieving optimal quality, durability, and productivity in aluminum die casting. This article explores the most common and suitable die materials, properties required, critical considerations in die material selection, surface coatings and treatments used, and the steps involved in machining the dies. Die-casting molds, also called dies, must withstand high pressures, temperatures, and thermal fatigue cycles inherent to the die-casting process. Using materials with suitable properties is crucial for achieving good mold life and performance. This article explores common grades, mechanical properties, heat resistance, hardness, and expected mold lif
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