Aluminum Die Casting, Zinc Die Casting

/Aluminum Die Casting, Zinc Die Casting
Aluminum Die Casting, Zinc Die Casting 2018-01-26T19:53:56+00:00

Aluminum Die Casting and Zinc Die Casting

What Is Die Casting?

Die casting is a metal casting process characterized by pressuring molten metal into the mold cavity. The mold cavity is created using two hardened tool steel molds that are machined during processing and work similarly to injection molds. Most die-castings are made from non-ferrous metals, especially zinc, copper, aluminum, magnesium, lead, tin and tin-based alloys. Depending on the type of metal being cast, thermal or cold machines are used.

aluminum die casting zinc die casting parts

How are Die Castings Made?

Steel dies capable of producing tens of thousands of castings in quick succession must be made in at least two sections to allow the castings to be removed. These parts are firmly mounted in the machine and are arranged so that one is stationary (fixed die half) and the other one is movable (syringe half-mold). To begin the casting cycle, the two mold halves are clamped together by a die-casting machine. Molten metal is injected into the mold cavity and rapidly solidified. The mold half is opened and the casting is ejected. Die-casting molds can be simple or complicated, with moveable slides, cores or other parts, depending on the complexity of the casting.

To date, the complete cycle of die casting has been the fastest cycle to produce precision nonferrous metal parts. This is in stark contrast to sand casting, which requires new sand molds for each casting. Although the permanent mold process uses iron or steel molds instead of sand, it is much slower and less precise than die castings.

Advantages of Aluminum Die Casting and Zinc Die Casting

  • Simple or complex shapes
  • Thin wall thickness
  • Light weight
  • High rates of production
  • Corrosion resistance
  • Monolithic – combine multiple functions in one
  • Efficient and economical alternative to other processes
aluminum die casting parts

 

Material Tensile Strength (Mpa) Thermal Conductivity (W/mK) Features
Aluminum A380 325 96
  • Best combination of mechanical, casting, and the thermal properties.
  • Excellent fluidity, pressure tightness, and resistance to hot cracking.
  • Widely used for engine brackets, hand tools, electronic equipment chassis, gearbox cases, and household furniture.
Aluminum A360 317 113
  • Excellent pressure tightness and fluidity.
  • High corrosion resistance.
  • High strength in elevated temperatures.
Aluminum 413 295 121
  • Good combination of casting, mechanical, and thermal properties.
  • Excellent fluidity, pressure tightness, and resistance to hot cracking.
Aluminum 383 310 96
  • Often used for highly intricate components.
  • Good corrosion resistance, lightweight. 
  • Good combination of casting, mechanical, and dimension stability. 
Aluminum B390 317 134
  • High hardness and good wear resistance.
  • Suitable for internal combustion engine pistons, cylinder bodies for compressors, and brakes.
Aluminum A413 290 121
  • Excellent pressure tightness.
  • Good choice for hydraulic cylinders. 
  • Suitable for die casting intricate components.

Secondary Operations of Aluminum Die Castings and Zinc Die Castings

  • Milling, drilling, tapping, e-coating, anodizing
  • Painting, sanding, shot blasting, powder coating, chrome plating

Aluminum Die Casting Parts and Zinc Die Casting Parts