3D printing copper and gold by green laser tech is what TRUMPF do

3D Printing metals to the next level


TRUMP; a German machine tool manufacturer is seeking to expand the versatility of metal materials for their additive manufacturing technology. The company’s TruPrint 5000 machine has now enabled to print high-carbon steel or titanium alloys, on the other hand a new green laser with pulse product enables the printing od pure copper and other precious metals.

Green light on

A new green laser with pulse function is introduced by TRUMPF last week in Frankfurt. It demonstrates its capacity to 3D print pure copper and other critical metals. According to what company believes, this notable ability could have important implications in mechanical and plant engineering application, since copper is used for producing conductive inductors and heat exchangers.

3D printing copper and gold by green laser tech | TRUMPF
3D printing copper and gold by green laser tech | TRUMPF

The technology we talked about has also applications in the jewelry industry as it could be used to print high precision pieces from gold or other expensive materials.
Thomas Fehn; TRUMPF’s general manager Additive Manufacturing for sales comments:

The 3D printer doesn’t waste expensive gold and silver. In other words, jewelry makers could actually save money by reducing material waste.

To show how it works to print copper, TRUMPF connected the TruDisk 1020 laser to the TruPrint 1000 Machine. The green laser, instead of traditional infrared laser has the right wavelength to melt and weld precious metals. As Fehn notes:

Conventional systems use an infrared laser as the beam source, but its wavelength is too long and it can’t weld highly reflective materials such as copper and gold. This can be done with laser light in the green wavelength spectrum.

Preheating the printer to 500 degrees (Celsius)

Demonstrating how TruPrint 5000 3D printer heats up is what TRUMPF did at Formnext. It was actually done to show how high-carbon steel and titanium alloys get heat without the risk of cracking or wrapping. It is a new achievement since it can open doors for manufacturers to create forming tools, punches and dies, something that has been challenge in Additive Manufacturing.

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[Image/Source]: 3DPMN

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