How to choose the best alloy for Aluminium Die Casting?

 The alloy used in your casting impacts your die-cast tool's final characteristics, functionality, cost, and life.

 Here Xielifeng will discuss choosing the best alloy for aluminium die casting. 

  • B390 alloy is a great option if your casting is exposed to high temperatures and utilized in a wear application. B390 manufactures engine parts, including cylinders, pistons, pumps, pulleys, and brake systems. Because it contains 16–18% silicon, B390 alloy is categorized as a hypereutectoid alloy. At 13%, silicon becomes saturated in molten aluminium. The extra silicon in the metal structure crystallizes to reinforce the casting at high temperatures and serve as hard-bearing material for wear.

  • Copper decreases corrosion resistance in an alloy for aluminium die-casting. This criterion makes 360 alloy, which contains.6% copper, a fantastic casting option. It is why 360 alloys are widely used in producing marine components and pumps.

  • Al-Si eutectic alloy 413 is what it is called. It indicates that of all the die-casting alloys, it solidifies across the smallest range. Castings made of aluminium solidify at the die surface and move steadily inward toward the casting's thermal centre. The solidification front creates a sound, pressure-tight skin. Because of how quickly this alloy forms, its pressure-tight skin extends significantly further into the casting than other alloys.

Die casting can now be used for structural components thanks to the development of new alloys. Examples of structural parts are automotive body pieces like shock mounts, door panels, and engine cradles. In frames for the marine and off-road leisure industries, structural alloys are very often used. High mechanical loads will be placed on structural castings during use and can be assembled via welding or riveting.

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