1. Material differences:

Die-cast aluminum alloys usually use ADC12 or ALsi9cu3, while aluminum cars usually use 6063 or 6061 (6061 aluminum sheets are sold).

2. The difference in appearance:

Die-cast aluminum is equivalent to the injection molding process and can be manufactured into any shape. Die-cast aluminum is generally used on the lamp housing. However, the cross-sectional shape used in automotive aluminum (aluminum coil 3004 for automotive parts) changes less, such as radiators for bulbs and aluminum profiles for doors and windows.
3. Thermal conductivity:

The general electrical conductivity of die-cast aluminum is about 80-90W/M.K, while the thermal conductivity of automotive aluminum is about 180-190W/M.K.

4. Cost:

The cost of die castings and automotive aluminum (aluminum coils for auto parts manufacturers) are relative and are calculated by weight and processing. Calculate costs based on real-time material prices and labor calculations. Relatively speaking, the cost of die-cast aluminum is higher, but the specific situation should be analyzed.

5. Production efficiency:

The production efficiency of injection molding is definitely relatively high, with mass production, usually more than 1,000 pieces per day, and stable dimensions, with a shrinkage rate of 0.5%. Automotive aluminum processing has more components. As the name suggests, it is automotive aluminum alloy, so the efficiency is naturally lower.

6. Application:

Die-cast aluminum is widely used in automobiles, street lights and now the mobile phone industry. Aluminum cars are widely used in downlights, ceiling lights and doors and windows.