The Difference Between Machined Aluminum and Die-Cast Aluminum

The heat dissipation and aesthetic properties of aluminum alloy have surpassed those of current plastic materials, and the weight it brings due to its own mass is irreplaceable by plastic.

What are the differences between machined aluminum and die-cast aluminum?

1. Material Differences:

Die-cast aluminum alloys typically use ADC12 or ALsi9cu3. Machined aluminum generally uses 6063 or 6061.

2. Appearance Differences:

Die-cast aluminum is equivalent to the plastic injection molding process and can be made into any shape. The housings on street lights are usually made of die-cast aluminum. The cross-sectional shape of machined aluminum changes little, such as the heat sinks of bulb lamps and the aluminum profiles of doors and windows.

3. Thermal Conductivity:

The thermal conductivity of die-cast aluminum is generally about 80-90W/M.K, while that of machined aluminum is about 180-190W/M.K.

4. Cost:

The cost of die-cast and machined aluminum is relative, calculated by weight and machining. Costs are calculated based on real-time material prices and labor. Relatively speaking, the cost of die-cast aluminum is higher, but specific situations require specific analysis.

5. Production Efficiency:

The production efficiency of injection molding is definitely higher. Mass production generally produces more than 1000 pieces a day, with stable dimensions and a shrinkage rate of 0.5%. Machined aluminum involves more parts processing, as the name suggests, the efficiency is naturally lower.