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Magnesium Alloy Manufacturing Process Method

Magnesium Alloys

In recent years, the demand for lightweight materials is increasing, magnesium alloy as a structural material because of its small specific gravity, high specific strength and stiffness, good thermal and electrical conductivity, good machinability, excellent damping and electromagnetic shielding, easy to process and shape and recycling, so widely used in automotive, electronics, communications and other industries, known as the “21st century green engineering materials”. It is widely used in automotive, electronics, communication and other industries.

in short, how many magnesium alloy manufacturing process method exist on industry? today let’s discuss more, keep reading.

Magnesium Alloy Manufacturing Process Method
Magnesium Alloy Manufacturing Process Method

Magnesium alloy material classification

According to the different forming process, magnesium alloy materials are mainly divided into two categories: cast magnesium alloy and deformed magnesium alloy. The former is mainly through casting to obtain magnesium alloy products. Including sand casting, permanent casting, investment casting, Investment casting, die casting, etc.. Among them, die-casting is the most mature and widely used technology. And the latter is to produce plate, bar, tube, profile and forging products of various sizes by deformation. And it can obtain higher strength, better ductility, better mechanical properties through the control of material organization and the application of heat treatment process, so as to meet the needs of more structural parts. In addition, the semi-solid forming of magnesium alloy as a new casting technology has also been widely studied and applied.

Magnesium Alloy Manufacturing Process Method
Magnesium Alloy Manufacturing Process Method
MaterialManufacturing Process Methods
Casting Magnesium AlloyDie Casting, Sand Casting, Investment Casting,Gravity Die Casting
Deform Magnesium AlloyFor plastic processing (rolling, forging, extrusion, stamping)
Magnesium alloy processing

Die Casting

Die casting is the main and most widely used forming process for magnesium alloy. Magnesium alloy has excellent die-casting process performance: magnesium alloy liquid viscosity is low, good fluidity, easy to fill the complex cavity. Here you can find Magnesium alloy die casting.

Lost Foat casting

  Lost Foam casting is a nearly no margin, precise molding of new casting technology, it has many advantages, such as, the sand does not need binder, castings and sand disposal system is very simple, easy to achieve clean production; castings without parting surface and draft angle, can make the structure of the casting high; processing and assembly time is reduced, casting costs can be reduced by 10%-30%, etc..

  Preliminary experimental research shows that the characteristics of magnesium alloy is very suitable for Lost Foam casting process, because the magnesium alloy Lost foam casting in addition to the above characteristics, but also has the following unique advantages.

  ① magnesium alloy in the pouring temperature, foam mold sample decomposition products are mainly hydrocarbons, benzene and styrene and other aerosol substances, they have a natural protective effect on the liquid magnesium alloy that is highly susceptible to oxidation during the punch molding;

  ②The use of dry sand negative pressure molding to avoid the contact between the magnesium alloy liquid and the moisture in the sand and the resulting casting defects;

  ③Compared with the currently commonly used magnesium alloy die-casting process, its investment costs are greatly reduced, dry sand good yielding to reduce the tendency of thermal cracking when the magnesium alloy solidification shrinkage; metal liquid slower and smooth filling speed to avoid the involvement of gas, so that the casting can be heat treatment to further improve its mechanical properties. Therefore, Lost foam casting of magnesium alloy has a great prospect of application.

Deformation magnesium alloy

  Transformation of magnesium alloy is different from the casting of magnesium alloy liquid forming, but through the temperature range of 300 ℃ -500 ℃ extrusion, rolling, forging method of solid state forming. As the deformation process eliminates the casting organization defects and refine the grain, so compared with the casting magnesium alloy, deformation magnesium alloy has higher strength, better ductility and better mechanical properties, while the production cost is lower.

At present, the plastic forming process of magnesium alloy is mainly forging and extrusion, a small number of roll forming, and all need to use hot processing method.

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