TECHNOLOGY | 3D PRINTING
fibre reinforced version of the 3F PAHT 9825 NT grade offering even lower water uptake and continuous service up to 150°), and Luvocom 3F PET CF 9780 BK carbon fibre reinforced PET (offering temperature resistance up to 120°C). All are semi-crystalline materials optimised for the FFF process. “The MakerBot Method and Method X machines
offer unique heated chamber capabilities which allow semi-crystalline materials to have their full properties out of the printer, avoiding the need of post-processes,” says Thiago Medeiros Araujo, Global Product Manager Luvocom 3F at LehVoss.
Above: Makerbot has extended its Method qualified material list with three engineering grades from LehVoss
Right: The Stratasys H350 is the first production system to use selective absorption fusion (SAF) powder
technology
be used, while our new glass-fibre reinforced PP has added strength and durability which makes it a great solution for automotive, aerospace, medical, robotic, and industrial applications.” The FL500PP-GF glass fibre-reinforced PP filament is based on a co-polymer specifically developed for additive manufacturing. The formulation is designed to maximise printability, dimensional stability, and surface finish, while minimising warpage and bed adhesion issues. It is intended for automotive, aerospace, medical and robotic applications and is available in 1.75mm and 2.85mm diameters. Glass fibre-reinforced PP filaments have a lower density than traditional FFF plastics; they are claimed to be 30% lighter than PLA and up to three times stiffer than ABS. In addition, PP filaments do not require drying before printing (unlike materials such as PA), which makes it more efficient to work with. Braskem says these properties, combined with PP’s recyclability, make it an attractive material for a wide range of 3D printing applications. PE filaments have historically been difficult to print due to warpage and shrinkage. Braskem says its 100% HDPE FL300PE filament has been specifi- cally engineered for 3D printing applications. It offers easy printing and lightweight together with good chemical and moisture resistance. The company says it is well suited for packaging and prototyping, and for any industrial and consumer goods applications where HDPE resins are typically required. This year, Stratasys group company Makerbot added three new high performance filament materials from LehVoss Group to its list of qualified materials for use with the LABS GEN 2 Experimen- tal Extruder option on its Method and Method X 3D printers. The new materials include Luvocom 3F PA HT 9825 NT high-temperature reduced water uptake PA (suitable for continuous service at up to 100°C), Luvocom 3F PAHTCF 9891 BK (a carbon
60 COMPOUNDING WORLD | May 2022
Powder alternative Last year, Stratasys took full control of 3D print technology company Xaar 3D. The company, the 3D-printing spin-off of industrial inkjet printhead maker Xaar, was working on finessing the process of selective absorption fusion (SAF) invented by Xaar’s Professor Neil Hopkinson. Stratasys had previously held a 45% stake in the company and had announced its intention to launch a family of machines using the technology. The first of these is the recently announced H350 Printer. SAF aims to speed up 3D printing by using a
powder-based technology that is more like conven- tional 2D printing. While there are companies using inkjet-style technology to extrude molten polymer onto a plate, SAF takes a different approach. It uses a series of printheads spanning the entire width of a bed of powdered polymer and which scan across it, depositing an “ink” that is actually an infrared sensitive liquid — a HAF (high absorbing fluid). The printhead path is followed by an infrared light and where the HAF has been deposited, the powdered polymer is fused. A new layer of powder is then added and the process repeated until the three
www.compoundingworld.com
IMAGE: STRATASYS/MAKERBOT
IMAGE: STRATASYS
Page 1 |
Page 2 |
Page 3 |
Page 4 |
Page 5 |
Page 6 |
Page 7 |
Page 8 |
Page 9 |
Page 10 |
Page 11 |
Page 12 |
Page 13 |
Page 14 |
Page 15 |
Page 16 |
Page 17 |
Page 18 |
Page 19 |
Page 20 |
Page 21 |
Page 22 |
Page 23 |
Page 24 |
Page 25 |
Page 26 |
Page 27 |
Page 28 |
Page 29 |
Page 30 |
Page 31 |
Page 32 |
Page 33 |
Page 34 |
Page 35 |
Page 36 |
Page 37 |
Page 38 |
Page 39 |
Page 40 |
Page 41 |
Page 42 |
Page 43 |
Page 44 |
Page 45 |
Page 46 |
Page 47 |
Page 48 |
Page 49 |
Page 50 |
Page 51 |
Page 52 |
Page 53 |
Page 54 |
Page 55 |
Page 56 |
Page 57 |
Page 58 |
Page 59 |
Page 60 |
Page 61 |
Page 62 |
Page 63 |
Page 64 |
Page 65 |
Page 66 |
Page 67 |
Page 68 |
Page 69 |
Page 70 |
Page 71 |
Page 72
