Zinc miniature die casting is the process of choice for small complex parts. Utilizing machines and dies specifically designed for high volume production of small parts, the ultra-fast cycling miniature zinc die casting process can produce castings at a rate of up to 1200 cycles per hour. While high-precision zinc miniature die casting is similar to the hot-chamber die casting CWM employs for larger parts, it is capable of holding tighter tolerances, often with zero draft, to net-shapes as-cast. Walls as thin as 0.020 in. (0.50 mm) and tolerances as tight as +–0.001 in. (0.03 mm) can be produced.
Major advantages of the miniature die casting process include:
• Ability to die cast complex net shape, flash-free parts with specified features and tolerances as-cast,
• No postcasting machining, with even gate removal eliminated by automated degating.