MENU
Logo Made in Germany Photonics West 2018

Additive manufacturing of metal mirrors reduces weight by 75%

Scanner mirrors and space-born telescope mirrors have one thing in common: every gram counts. Consequently, light-weight structures are typically used. Conventional techniques with back pockets and drilled structures allow for weight reductions of more than 30%. Combining a dedicated design with an additive manufacturing process enables weight reductions of more than 65%.
 
The team from Fraunhofer IOF uses selective laser melting to manufacture metal mirrors. Due to the lightweight design with stochastic or symmetric structures, a mass reduction of up to 75% has been achieved. Several materials have been qualified, such as AlSi12, AlSi40, and Al6061. Mirrors of 150-mm diameter exhibit high stability and stiffness along with a surface roughness of <1 nm RMS and form a deviation of <150 nm PV after post finishing.

www.iof.fraunhofer.de/en/business-fields/precision-e...

Exhibitor: Fraunhofer Institute for Applied Optics and Precision Engineering IOF

Your personal organizer

Your personal organizer

Print list  |  Save as PDF
Aixtooling GmbH
Booth number: 4529-66