How Will Magnesium Thixomolding Be In The Future.

 ``Aluminum and steel, they have muscle,'' Winandy said. As for magnesium, ``This is a small industry. The car industry is a large industry and they are used to working with other large industries, like aluminum and steel.'' In the Detroit area, car engineers drive to work past billboards proclaiming the benefits of steel, aluminum and plastics.

40 a pound, according to speakers (Magnesium Thixomolding). ``This makes it more competitive with steel and aluminum,'' Winandy said. But he said magnesium producers may have to sign long-term contracts to give automakers the pricing stability they crave.

Semi-solid metal casting (SSM) is a near net shape variant of die casting. The process is used today with non-ferrous metals, such as aluminium, copper, and magnesium, but also can work with higher temperature alloys for which no currently suitable die materials are available. The process combines the advantages of casting and forging.

Thixocasting[edit] Thixocasting utilizes a pre-cast billet with a non-dendritic microstructure that is normally produced by vigorously stirring the melt as the bar is being cast. Magnesium Thixomolding. Induction heating is normally used to re-heat the billets to the semi-solid temperature range, and die casting machines are used to inject the semi-solid material into hardened steel dies.

Thixomolding[edit] For magnesium alloys, thixomolding uses a machine similar to injection molding. In a single step process, room temperature magnesium alloy chips are fed into the back end of a heated barrel through a volumetric feeder. The barrel is maintained under an argon atmosphere to prevent oxidation of the magnesium chips.

After the solidus temperature is passed the grain boundaries melt to form the SSM microstructure - Magnesium Thixomolding. For this method to work the material should be extruded or cold rolled in the half-hard tempered state. This method is limited in size to bar diameters smaller than 37 mm (1. 5 in); because of this only smaller parts can be cast.

In recent years, thixomolding technology has also been introduced in China. In 2009, Yiz umi developed the first Chinese thixomolding machine, which attracted considerable media attention. In the same year, the products of the MG series were approved on the Chinese market. In 2014, Yizumi was one of the leading companies to develop the worldwide industry standards for the Thixomolding .

Thixomolding is a unique manufacturing process that allows manufacturers to design highly complex, light weight parts from magnesium alloys for medium to high volume applications. It is not new process and has been used in the automotive, consumer products, drone, telecom, etc. industries for many years - Magnesium Thixomolding. Thixomolding is high-pressure injection molding of a semi-molten magnesium alloy and MIM is a powdered/sintered metal process.

Tool Life The nature of semi solid processing magnesium is much gentler on tools/molds. Lower temperatures and better flow characteristics reduce the average wear and tear. We have tools with over 500,000 shots still in operation today, with very little maintenance required.

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The Mg chips are safely converted to a uniform, semisolid "thixotropic" state with a low but stable viscosity. After the material has accumulated to a predetermined shot size, it is injected with relatively high pressure and speed into the die cavity. Flow into the die cavity is laminar, unlike the extremely turbulent flow in diecasting.

Magnesium ThixomoldingMagnesium Thixomolding


002 mm/mm. The Dow Chemical Co. received the original patents for the process in 1987. In 1989, a consortium company called Thixomat Inc. (Ann Arbor, MI) was formed. It received the worldwide license to the patents. Thixomat is commercializing the process around the world with its partners and its shareholders.

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