Dieffenbacher Industriemarketing GmbH (Eppingen, Germany) reported on May 19 that in March 2011, the first Dieffenbacher high-pressure resin transfer molding (RTM) press, COMPRESS ECO, entered service at Audi Lightweight Construction Center in Neckarsulm, Germany. Among other activities, the Audi Lightweight Construction Center is working on manufacturing structural components from carbon fiber for lightweight concepts.
Dieffenbacher says two factors set the new high-pressure RTM press apart: the congruent bending line of the moving bolser and ram, as well as the high-precision parallel motion even with off-center forces. The press also has special press programs for IMC and RTM with flow-front control. Flow-front control presses the injected resin into specific component areas within the closed tool, for example where the material is needed for reinforcements. The press supplies force up to 10,000 kN and comes with a table of 2800 mm by 1800 mm (110 inches by 71 inches), and is designed both for developing new technologies and for undertaking small batch production.
Dieffenbacher's partners in this RTM technology effort are Fraunhofer ICT and KraussMaffei.
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