| Customization: | Available |
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| Die Casting Machine Type: | Hot Chamber Die Casting Machine |
| Die Casting Method: | Precision Die Casting |
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Item Name:
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China Metal Casting Foundry Product Customized Aluminum Die Casting |
Material:
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Aluminum, stainless steel, copper, brass, galvinized etc. |
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Color:
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Natural Color
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Application:
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CNC MACHINING PARTS
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| Surface finish: | Hard Coating/Black Anodize/Clear Anodize/Hard Chrome/Clear Zinc/Plasma Niride |
Size:
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Customized Size
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Process:
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Turning, Milling, Lathing, Drilling, Honing, Grinding
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Testing Equipment:
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Projector, Pin Gauge, CMM
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Die casting is a type of metal casting that uses high pressure to force molten metal into a mold cavity formed by two dies. It shares traits with the plastic manufacturing process of injection molding.
Within the larger metal casting landscape, die casting is one of the most popular techniques due to its accuracy and level of detail. The broader category of metal casting, which has existed for thousands of years, contains many different processes that use a mold to form liquid metal. Historically, such a process usually involved pouring the liquid metal into the mold with the aid of gravity - and many metal casting processes still work this way. Die casting, however, is a relatively new form of metal casting, introduced in the 19th century, and it uses pressure instead of gravity to fill the mold cavity.
Die casting is sometimes called high-pressure die casting, due to the amount of pressure - typically 10-140 megapascals - used to force the metal into the mold cavity. The related process of low-pressure die casting (LPDC) is less common. Die casting typically falls into one of two categories: hot-chamber die casting and cold-chamber die casting, which are suitable for different types of metal. However, there are also other variants of the process, such as semi-solid metal casting (SSM)
Low-pressure die casting uses small pressure, typically around 20-100 kPa (2.9-14.5 psi), instead of gravity to fill a die. Unlike the traditional die casting process, it has a unique setup and uses several pieces of equipment. Below is an illustration of the setup and pieces of equipment that are needed.
The process begins with a melting furnace which melts the metal alloys and brings them to the casting temperature. For example, aluminum has a casting temperature of 710-7200C.
The molten metal will then go to a holding furnace below the mold, which functions as a container while maintaining the liquid at the casting temperature.
Low pressure forces the molten metal through a riser tube into the mold. The liquid metal moves under constant pressure until the molten metal solidifies in the die cavity.
On solidification, the pressure is released, and the remaining molten metal goes back through the riser tube to the holding furnace for recycling. Finally, the casting will be easily removed once the mold is cooled.
In simple terms, metal die casting works by using high pressure to force molten metal into a mold cavity, which is formed by two hardened steel dies. Once the cavity is filled, the molten metal cools and solidifies, and the dies open up so the parts can be removed. In practice, however, there are many steps in the process, and skilled engineers are required to operate die casting equipment.
Here we will divide the die casting process into three stages:
Die casting is a powerful, versatile process suitable for a range of parts, from engine components to electronics housings. Reasons for the versatility of die casting include its large build area, range of material options, and ability to make detailed, repeatable, thin-walled parts.
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