BULK METALLIC GLASS. ANY THICKNESS.ANY SHAPE. ANY ALLOY.

For fifty years the commercial successof amorphous metals has been held backby inadequate manufacturing methods.

Now that changes.

Exmet AB is working with industrial partners on several applications. In one application, the ability of the material to store large amounts of elastic energy (x10 compared to high quality crystalline steel) is exploited, and in another application we exploit the soft magnetic properties of the material. Exmet AB is currently seek-ing additional corporate partners to help bring this disruptive new technol-ogy to more markets.

Contact Please contact us to learn more about our patented technology for additive manufacturing of amorphous metal alloys, and how it can be applied to your products and accelerate your business.

Mattias Unossonmattias.unosson@exmet.se+46 70 493 45 36

Swedish research based company Exmet AB has developed and patented technology for additive manufactur-ing (also known as 3D printing) of amorphous alloys. Amorphous alloys (also known as bulk metallic glasses, BMG, and glassy alloys) lacks crys-talline microstructure, which gives them a number of unique mechanical, chemical, magnetic and functional properties such as high strength, high elasticity, high corrosion resistance and low magnetization loss. The key to achieving an amorphous microstruc-ture is rapid cooling. Sufficiently high cooling rates are difficult to attain in normal manufacturing methods, e.g. casting.

Exmet AB has managed to manufac-ture amorphous net shape compo-nents by additive manufacturing using either laser or electron beam based systems. We consider our technology to be unique.

Exmet AB has successfully processed components in amorphous iron based alloys in commercially available industrial additive layer manufactur-ing systems, based on electron beam melting (EBM) or on selective laser melting (SLM). We choose to start with iron based alloys, not because they are easy, but because they are hard.

The DSC curve for one alloy, Fe74Mo4P10C7.5B2.5Si2 (at.%), is shown

in the first figure. In the second figure a AM processed sample is shown. The critical casting diameter for this particular alloy is approximately 5 mm (0.2’’), and we have thus far manufac-tured samples with thickness 20 mm (0.8’’). The shown XRD curve and pic-tures from optical microscopy proves that the sample is indeed amorphous.

The following list is a compilation of potential applications of amorphous alloys. However, with the introduction of our technology the number of possible applications will increase, since additive manufacturing inher-ently opens up new design possibili-ties. Especially when combined with topology optimization:

• Lowweightstructuralcomponents• Sportinggoods• Mechanicalsprings• Electricalcomponents• Knives• Gears• Nozzles• Medicalinstruments• Pressuresensors• Biomedicalmaterials• Fuelcells• Antennas• Warheadcomponents• Peeningshots• Opticalmirrors• Jewelleryandwatches• Electronicdevicecasings

Sample 50x50x5mm3

© 2013 ExMET AB. ExMET AB IS A rESEArCH BASEd COMPANY wITHIN THE ArEA Of MATErIALS TECHNOLOGY. THE COMPANY wAS fOrMEd 2009 ANd THE fOUNdATION Of THE COMPANY IS BUILT ON OUr PATENTEd TECHNOLOGY.ExMET AB IS BASEd IN STOCKHOLM, SwEdEN.

Amorphous metals without limitations.

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