materials | 3D printing
Comparison of properties of FFF 3D printing grades of ABS and PLA
HEAT RESISTANCE IMPACT STRENGTH
Source: NatureWorks
1 Annealed for 10-20 min @ 110-120ºC
2 Values from literature The materials will be based on food waste or
agricultural by-products (from corn) and must, AITIIP says, “possess specific mechanical, thermal, aestheti- cal, optical and antimicrobial properties to make them suitable for their industrial use.” Pointing out that PLA is already widely used in 3D printing, but mainly by hobbyists, it says the challenge is now to employ it at an industrial level “while taking into account the require- ments which manufactured pieces need to meet from the very early stage when engineering materials and enriching additives are formulated.” Barbara aims to develop demonstrator prototypes
Below: Cross section of a carpet agitator made using Carbon’s AM technology
such as car door handles and dashboard fascia for the automotive sector, and moulds for truss joints and structures used in the building sector. AITIIP is also coordinating another EU-sponsored
project called Kraken, which will integrate various key technologies, such as 3D printing, robotics, 7-DoF (Degrees of Freedom) real time control, complex monitoring and advanced control algorithms, supported by an innovative CAM software, in one machine.
“This will make Kraken the largest 3D printer and subtractive system in the world, both for metal and non-metal- lic materials, able to print high performance industrial products up to 20 metres long, with improved accuracy and better final quality,” says Jose Antonio Dieste, head of mechatronics and advanced processes at AITIIP. Meanwhile, NatureWorks earlier this year introduced Ingeo 3D870 PLA, which it
52 INJECTION WORLD | May/June 2017
3 All test bars were 3D printed at 100% infill
describes as “a cost-effective grade for 3D filament manufacturers looking for innovative means of expand- ing sales into the industrial prototyping and additive manufacturing market.” It says it developed the grade to meet the growing demand by industrial companies for a material that combines the properties of ABS and the printability of Ingeo PLA. Parts produced with the formulation are said to exceed ABS 3D printed parts in impact strength and, with post-print annealing, they rival ABS heat resistance (see bar charts above). Algix 3D, which makes FFF filaments based on
algae, last year introduced the Omni filament, which it says is an all-purpose filament that provides the performance and material property benefits of ABS, but it prints like PLA and is also compostable.
Click on the links for more information: ❙
www.solvay.com ❙
www.aschulman.com ❙
www.albis.com ❙
www.trinseo.com ❙
www.covestro.com ❙
www.dupont.com ❙
www.elix-polymers.com ❙
www.ineos-styrolution.com ❙
www.topas.com ❙
www.dolomite-microfluidics.com ❙
www.stratasys.com ❙
www.dsm.com ❙
www.arburg.com ❙
www.carbon3d.com ❙
www.aitiip.com ❙
www.natureworksllc.com ❙
www.algix3d.com
www.injectionworld.com
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