The difference between machined aluminum and die-cast aluminum
1, the difference in materials:
Die-cast aluminum alloy generally adopts ADC12 or ALsi9cu3. The two-car aluminum generally adopts 6063 or 6061.
2, the difference in appearance:
Die-cast aluminum is equivalent to plastic injection molding process, and can be manufactured in any shape. The outer casing of the street lamp is generally made of die-cast aluminum. The shape of the equal section of the two-car aluminum has a small change, such as the heat sink of the bulb, the aluminum profile of the door and window.
3, thermal conductivity:
The general conductivity of die-cast aluminum is about 80-90W/M.K, while the thermal conductivity of aluminum is about 180-190W/M.K.
The cost of die castings and aluminum is relatively high, calculated by weight and machining. Calculate costs based on real-time material prices and labor. 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 higher. In batch production, it is generally produced more than 1,000 a day, and the size is stable, and the shrinkage rate is 0.5%. There are more components in the aluminum machine processing, as the name suggests is the car aluminum. The efficiency is naturally lower.
Die-cast aluminum is widely used in automobiles, street lamps and the current mobile phone industry. The aluminum is widely used in downlights, ceiling lamps, doors and windows.