The innovative processing technique overcomes the well-known problems of weldline weakness, porosities and undefined fibre and polymer orientation in conventional injection moulding products. Because of their insufficient properties these have been rejected from high performance applications.
The "push-pull" technique inducing counter flow in the IM process combined with gas pressing which blows residual melt out of the inner volume yields a new class of thin walled lightweight structures with exceptional mechanical and thermal properties and allows a wide range of complex geometries. Currently the quality of thermoplastic prototypes has not reached the optimal level and severely suffers from lacking knowledge about material properties due to insufficient performance of non destructive testing methods and/or exhaustive analytical methods. In the field of duroplastic composites it is well known that the equivalent problem and their restriction to simple geometries has limited their implementation into modern technologies during the last decade.
This project tries to avoid such a development in the emerging technology of Push-Pull IM components by providing the necessary precompetetive knowledge to European industries in time. Prototypes of "high tec" part for aviation and aerospace and "mid tec" parts for automotive technology will be developed. Among their advantages are high strength to weight ratio, low costs compared to other high performance composites and mass production potential.
Key tasks of the project are : Optimising processing parameters, developing in-process monitoring by ultrasonic transducers and adapting advanced non destructive testing (DT).
SDA : 1993-12-01
EDA : 1996-11-30
DUR : 36 months
PJS : Execution
POR : FORCE INSTITUTES
PAD : PARK ALLE 345
PPC : 2605
PTO : BROENDBY
PRC : Kobenhavns amt
PCY : DENMARK (DK)
CPJ : Name: NIELSEN L. (Mr.) Tel: +45-43968800 Fax: +45-43962636
Project Partners:
FED. INST FOR MAT. RESEARCH & TESTING, D-Berlin
LOCKNER FERROMATIK DESMA GmbH, D-Freiburg
SAVOY MOULAGE, F- Cluses
FACHHOCHSCHULE OSNABRUCK, D-Osnabrueck
EUROCOPTER FRANCE
F - MARIGNANE, F- CEDEX
Language: English.
Quelle: Cordis
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Rolf Diederichs 1. May 1996, info@ndt.net