I D
× COMMENTARYCOVER STORYIN THE NEWSCHEMENTATOR + Show More BUSINESS NEWSTECHNICAL & PRACTICALFEATURE REPORTFACTS AT YOUR FINGERTIPSTECHNOLOGY PROFILESOLIDS PROCESSINGENGINEERING PRACTICEENVIRONMENTAL MANAGEREQUIPMENT & SERVICESFOCUS
Focus on Valves
    A new motorized control valve for the semiconductor…
NEW PRODUCTS + Show More

Comment

Making complex silicone parts by 3-D printing

By Gerald Ondrey |

The field of additive manufacturing (AM) — often referred to as 3-D printing — has seen explosive growth in recent years (Chem. Eng., February 2015, pp. 20–23; www.chemengonline.com/3-d-printing-accelerates-creating-cpi-opportunities). In AM, no tools or molds are required to shape the desired part; instead, the workpiece is built up in successive layers. While the technology has evolved over the last 25 years, the main materials used have been photopolymers and thermoplastics, says Bernd Pachaly, vice president, Innovation Silicones at Wacker Silicones (Berghausen, Germany; www.wacker.com). “Up to now, there is no full-stop [3-D printing] technology for elastomers, and in particular, silicones,” he says. Because of silicones unique properties, such as thermal resistance, flexibility (also at low temperatures), transparency, biocompatibility and more, Wacker — together with a local prototyping specialist — began a development project for silicone 3-D printing in the second quarter of 2014, taking a holistic approach to develop material, hardware and software. This year, Wacker plans to commercialize its 3-D technology under the tradename, ACEO. The company already has second-generation prototype systems capable of “printing”…
Related Content

Chemical Engineering publishes FREE eletters that bring our original content to our readers in an easily accessible email format about once a week.
Subscribe Now
Metering gas in biogas plants
Wet process analyzer for FPD and solar cell manufacturing for semi-conductors
Fluidized bed drying and cooling for temperature-sensitive polymers and plastics
CoriolisMaster: The SmartSensor solution
The Big 6 flowmeter technologies: Where to use them and why

View More