Software for filament winding SEIFERT AND Skinner & Associates Inc (SS&A) is introducing ComposicaD™ software, which generates winding patterns for any ﬁlament winding machine. Modules and packages in the ComposicaD lineup allow ﬁlament winding for: pipes and tubes; tanks and vessels; any ﬁgure of revolution; pipe tees and elbows; spars; and other geometric shapes. According to Seifert and Skinner & Associates, the software was designed to be completely user friendly, making it quick for the part programmer to make parts. The software is focused at the part level, not at the individual layer level, where much of today’s existing software is focused. Many ﬁlament winders make a range of pipes or tanks that vary only in the overall length or diameter. Using ComposicaD, the part programmer builds the desired laminate table – the diﬀerent layers of circumferential, helical and transition winding – and then can produce a range of parts, simply by varying the part length and/or diameter. ComposicaD automatically
recalculates all of the layers to produce the new part. ComposicaD software uses many improved algorithms for calculating the ﬁbre paths and machine motions. It maintains a database of materials – commonly used ﬁbre band setups – which include the band width, band thickness, maximum slip potential, band density, cost and other parameters. These parameters are used to calculate laminate weights, length of ﬁbre consumed, and costs, as well as the winding time, both on a total part basis and for the individual lamina. The software produces machine output for up to six axes of motion – spindle, carriage, cross carriage, rotating eye, yaw axis and perpendicular axis. It automatically calculates the thickness buildup and adjusts the winding contour. Winding speeds are controlled by the machine accelerations and velocities, including the ﬁbre speed, and can be varied up to the limits, which are speciﬁc for the target winding machine. ComposicaD; www.composicad.com
High temperature tooling resin TOOLFUSION® 3 from Airtech Advanced Materials is a two part, low viscosity epoxy infusion resin for use in producing prepreg quality, composite moulds. Toolfusion 3 has a low initial cure temperature of 49ºC and can be post cured to achieve a high glass transition temperature (Tg) of 218ºC. Airtech says that void contents of less than 1% are achievable. The product can be used in various resin transfer moulding (RTM) and vacuum assisted RTM (VARTM) processes to produce autoclave quality laminates. The low viscosity of the resin allows
The following stories can be found in full on our website www.reinforcedplastics.com ■ Advanced Composites Group Ltd (ACG) has VTM®260 Series prepregs have been recertified by Lloyd’s Register. ACG says its VTM260 Series is the first and only prepreg system to have received Lloyd’s approval and has been widely accepted in the marine industry, particularly for racing yachts. ■ 3M has partnered with Rope
■ Applied NanoStructured
infusion of thicker and more complex laminates with fewer resin feed lines. Toolfusion composite tools weigh less than metal tools for easier manual handing, and they have faster heat up and cool down rates for reduced production costs. Airtech; www.airtech.lu
Partner to conduct an in-field study on the effects of leading edge wind turbine blade damage. The purpose of the year long study is to quantify the reduction in overall wind turbine output due to leading edge erosion. 3M aims to target the issue with its polyurethane tape technology.
A tapered vessel mandrel showing a helical winding, the transition and a circumferential winding. Band colours indicate the winding angle.
Airtech’s new infusion resin is said to deliver high quality laminates with low manufacturing costs, no refrigeration costs, and no autoclave running costs.
Solutions LLC (ANS), a subsidiary of Lockheed Martin Corp, and glass fibre reinforcements supplier Owens Corning have signed a joint development agreement to support the commercialisation of carbon-enhanced reinforcements. The companies plan to combine
ANS’ carbon infusion technology with Owens Corning’s reinforcements to create ‘next generation’ composite materials. ■ GKN Aerospace has purchased
VISTAGY Inc’s SyncroFIT® software for developing airframe assemblies, for use in conjunction with FiberSIM® composites engineering software in developing an optimised winglet for Bombardier’s CSeries aircraft programme. ■ Hunan ZKenergy Wind Power
Industrial Technology Co Ltd of China is using a very long glass fibre reinforced thermoplastic composite from RTP Company to injection mould the blades for its small-scale wind turbines. ■ Vacmobiles.com Ltd has
upgraded its Vacmobile 20/2 mobile vacuum system. The machine is used for composite manufacturing processes such as resin infusion and vacuum bagging. Vacmobile users implementing good moulding practices typically achieve more than 98% air removal from the laminate, often significantly better than previously achieved by larger and more expensive vacuum systems, reports Vacmobiles.com.