What are die-cast lighting parts?

Die cast lighting parts refer to metal or alloy parts manufactured using die casting molding technology, mainly used for structural support, heat dissipation, protection or decoration of various lighting equipment. The following are its core characteristics:

1. Characteristics of Manufacturing Process
High pressure injection molding: Molten metals (such as aluminum alloys and zinc alloys) are injected into precision molds under high pressure and rapidly cooled to form.
High precision and complex structure: parts with fine features such as threaded holes, heat dissipation fins, and buckles can be molded in one go, reducing subsequent processing.

2. Typical application scenarios
Structural parts: load-bearing parts such as lamp housings, brackets, bases, etc. (such as street lamp housings, mining lamp frames).
Heat dissipation parts: heat sink for LED module, thermal base (relying on high thermal conductivity of metal).
Protective parts: waterproof die-casting cover, explosion-proof lamp metal explosion-proof chamber.
Decorative parts: high-end lamp decorative rings and panels with surface electroplating or anodizing.

3. Core advantages
High strength: Metal die-casting parts are more capable of withstanding impacts, vibrations, or extreme temperatures than plastic injection molded parts.
Efficient heat dissipation: Metal (especially aluminum alloy) naturally conducts heat, avoiding LED light decay due to high temperature.
Economy of mass production: suitable for large-scale production, with a single piece cost lower than CNC machining.

4. Material selection affects performance
Aluminum alloy: the most commonly used, balancing cost, weight, and heat dissipation (such as ADC12).
Zinc alloy: higher strength, suitable for precision small parts (such as connectors), but heavier.
Magnesium alloy: extremely lightweight, used for aviation or portable lighting, but high cost and flammable.

5. Comparison with other processes
Compared to plastic injection molding, metal die casting is more resistant to high temperatures/UV, but has higher mold costs and lower design flexibility.
Compared to sheet metal stamping: Die casting can create complex three-dimensional structures, but its thickness uniformity is not as good as sheet metal.