LASER WORLD OF PHOTONICS
MULTI-LASER ADDITIVE SYSTEMS DISCUSSED AT LASER WORLD OF PHOTONICS
Matthew Dale reports from an additive manufacturing application panel at Laser World of Photonics, where high-end, multi-laser systems along with low-cost machines were discussed
A
dditive manufacturing system providers are exploring new approaches to increase productivity and scale to larger parts, according to work
presented at Laser World of Photonics in Munich at the end of June. During an AM application panel, systems with moveable build chambers and those that incorporate multiple lasers were introduced. For SMEs and universities that cannot
afford to invest in such advanced AM technology, an alternative affordable selective laser melting (SLM) system for a fraction of the price of standard commercial systems was also presented. Tiago Faro, CTO of Adira Metalforming
Solutions, explained to panel attendees how the requirements of the industry have led the company to design a new SLM concept that enables the fabrication of exceptionally large parts through a modular process known as tiled laser melting (TLM). ‘We have developed a concept SLM machine
comprising a moveable build chamber in which the necessary local atmospheric process conditions can be maintained while moving,’ Faro said. ‘With it we can fabricate parts much larger than those possible using conventional systems by first locally assembling part segments on individual tiles, and then joining these together to form a complete structure. Tis brings a lot of scalability to the additive manufacturing process.’
12 LASER SYSTEMS EUROPE ISSUE 36 • AUTUMN 2017
Trumpf’s dual 200W laser TruPrint 1000 laser metal fusion system Adira’s first concept machine, Version One,
which was presented last year at Euroblech in Hanover, features a working envelope of 1 x 1 x 0.2 metres and comprises a 1kW single-mode fibre laser. Currently intended mainly for R&D purposes, the machine operates with a scanning speed of up to 9m/s and achieves a minimum layer thickness of 25µm. ‘We see a trend towards larger and larger machines and therefore see this concept
playing a role in the future additive manufacturing market,’ commented Faro, who showed that with the new system the company was able to fabricate a 316L stainless steel conceptual cooling structure 0.9 metres in length from six separate tiles, bonding the modular parts together using a special type of stitching. Additionally, he explained that with a process called dynamic tiling, the machine is able to move the tiles both vertically and
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