Right: Fillamentum has launched its first 100% biodegradable filament for 3DP, called NonOilen

nologies. Infinam is the new brand name for all of its 3DP materials. The company has made several AM-connected announcements in recent months, the most recent one on the strengthened collabora- tion with Farsoon, China’s largest SLS (selective laser sintering) 3D printer manufacturer, on powder-based materials with high temperature resistance, with their eyes on large-scale industrial applications. Evonik says it has already successfully tested its

Infinam PA 6005 P, a polyamide 613 with a 213°C melting point, on Farsoon’s ST252P and HT403P series machines. “We used our synergies to develop a market-ready system solution,” says Wolfgang Diekmann, Director Research, Development & Innovation Additive Manufacturing at Evonik. “The development of new formulations is underway.” Infinam PA 6005 P is strong and has high chemical resistance; plus it has low water absorption for a polyamide, below 3%. This has a positive effect on process- ability as well as on part dimensional stability.

Farsoon’s machines can reach process

Above: Infinam TI 3100 L is an ultra-strong and tough light-curing resin

Below: Evonik has a new product line of photopolymers for 3D printing

chamber temperatures of up to 280°C (220°C on HT units). They have high-speed scanners and powerful lasers. “The high productivity of compo- nent production increasingly enables series applications,” says Evonik. Earlier, Evonik announced a new 3DP filament based on PEEK (polyether ether ketone), Infinam PEEK 9359 F, for industrial applications (it already offers PEEK filaments for medical components). Apart from very high temperature resistance (it resists heat peaks of over 300°C), it also has high mechanical strength, hydrolysis resistance, or inherent flame retardancy. Evonik is aiming at applications in aerospace, automotive, and oil & gas, especially for parts in place of metal. Apart from advantages in weight and toughness, Infinam

PEEK 9359 F also has very high wear resistance and low sliding friction. A third announcement related to two photopoly- mers for industrial applications, Infinam TI 3100 L and Infinam ST 6100 L. These are the first in a new line of materials for processing using vat polymeri- sation technologies such as SLA (stereolithogra- phy) or DLP (direct light processing). Evonik says Infinam TI 3100L can be used to make “ultra- strong” and tough parts, while Infinam ST 6100 L is for applications which need high temperature resistance combined with high flexural strength. DSM was one of the pioneers in AM, beginning with its Somos SLA resins. In fact, Somos resin was in the first stereolithography printer sold. Last June, DSM took over parts of Clariant’s 3DP business portfolio. It said the integration of the Clariant assets enabled it to strengthen its engineering grade filament, pellet and powder portfolio. Three months later, it sold its Resins & Functional Materi- als and associated businesses – which include DSM Additive Manufacturing – to Covestro. With the dust still settling around that deal,

Covestro, which has taken a strong line in sustain- ability in all of its businesses (principally polycar- bonate and polyurethanes), has launched a 3DP material in a glass-reinforced post-consumer recycled PET. ArniteAM2001 GF (G), which was developed by DSM prior to the acquisition, is for FGF. Covestro says it fits perfectly into its vision for a Circular Economy and “illustrates how comple- mentary the two organisations are in their ap- proach to adding more value to additive manufac- turing and industrial production overall.” FGF allows for fast and economically viable additive manufacturing of large parts, Covestro says. “Arnite AM2001 GF (G) rPET‘s mechanical

properties and broad processing window make it ideally suited for structural applications across a variety of industries, including pedestrian bridges,

32 INJECTION WORLD | June 2021




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