Technologies and Machinery

Find out our Technologies

CNC Milling

The milling machine is a machine tool used for the processing of complex shapes of metallic parts.

The latest CNC milling machines are fitted with automated systems for the substitution of utensils. They make the productive process entirely automated: this allows us to obtain a finished product without human intervention and to make the process quicker and cheaper.

Electro-discharge process

Electro-discharge process is a processing technology that takes advantage of the erosive potentials of electrical discharges. It is possible to use it only on good conductors, mainly metals.

The process consists on approaching the cutting tool (also known as electrode) to the material we want to treat (workpiece-electrode). Everything happens in a dielectric liquid. The two are subject to an electric voltage. When the voltage between the two electrodes is increased, the intensity of the electric field in the volume between the electrodes becomes greater than the strength of the dielectric liquid, which breaks down, allowing current to flow between the two electrodes. The electrodes generate a plasma-channel which melts the surface of the material.

Die-casting

Zamak ingots are smelted in an oven at about 420° C (788° F) next to the press, and the zamak alloy is injected in a mold.

Thanks to the high fluidity level and the low melting point, the zamak alloy allows us to obtain low-tolerance level articles and complex shapes.

The die-casting technology is an industrial production process that consists in injecting liquid metal at high pressure in a special mold in order to obtain products of complex shapes, cheaper prices and mechanical features suitable for several uses.

The process is done through an automatic or semi-automatic plant composed by a press that has the task to open and close the mold. It’s a system of injection that conveys the metal in the mold with adjustable time-speed parameters and handling systems for the charging of smelted metal and cooling and lubrification of the mold. The whole process is subject to a high number of parameters controlled by a processor.

Tumble finishing

It is a technique for the mechanical removal of substrate remnants, due to the previous molding and smelting processing.

Giving a superficial finish to a high number of pieces of small dimension is the aim of this technique. It is done through rotation and collision of pieces in a barrel, possibly of abrasive material shaped accordingly, which accelerates the process.

The processing can also be done through immersion in a liquid, in the aim of preventing chemical attacks.

Why Zamak alloys?

Zamak alloys were first developed in 1929 by the New Jersey Zinc Company.

The name ZAMAK comes from the German initial letters of the elements that compose the alloy, that is: Z (zinc), A (aluminum), MA (magnesium), K (Kupfer - copper)

The use of zamak in the die-casting process has many advantages:

1- Resistance to impacts, wear and corrosion. Zamak articles produced thanks to the die-casting process offer a higher resistance to impacts, wear and corrosion if compared to articles produced with other alloys or in plastic, because zamak is almost as hard as cast iron and brass. Moreover, the corrosion resistance, which is already high, is further increased if zamak articles are subject to processes of galvanization like zinc coating, chromium plating, nickel-plating and satin finishing.

2- Versatility in the finish of articles. The high precision of zamak die-cast articles simplifies the satin finishing and painting processes as well as the polishing or the chromium plating and even the silver and gold plating.

3- High jets precision. The peculiar zamak ductility, together with it good resistance, allows us to obtain a high flexibility level in the designing of small details. Comparing it to other alloys commonly used in the die-casting process, like aluminum and magnesium, zinc alloys are perfect to obtain more restricted tolerance levels and better finishes.

4- Saving. Zamak articles realized through the die-casting process are cheaper than those created with other alloys.

5- Low environmental impact of the production cycle. During the treatment process, the zamak alloy does not spread in the air substances that cause pollution, since it is a zinc alloy. Furthermore, since its melting point is 410/420° C (770/788°F), zamak offers significant energy savings.

6- Recyclability. All the articles realized with the die-casting technology are recyclable.

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