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Schmelzen von thermoplastischen Kunststoffen mit IR-Laserstrahlung

Melting of thermoplastic plastics with iIF-laser radiation
: Kreutz, E.W.; Pütz, H.; Rest, H.; Klein, R.

Waidelich, W.:
Laser '89. Laser/Optoelektronik in der Technik
Berlin/West: Springer, 1990
ISBN: 3-540-51433-3
Internationaler Kongreß Laser <9, 1989, München>
Fraunhofer ILT ()
faserverstärkter Thermoplast; filament winding; IF-laser radiation; IR-Laserstrahlung; melting; Schmelzen; thermoplastic plastic; thermoplastischer Kunststoff

The melting of thermoplastic plastics with and without fibre reinforcement is investigated during the influence of Nd:YAG and CO sub 2 laser radiation. Absorption measurements as a function of temperature are presented. By means of a model of heat conduction with a term of a source corresponding to the optical penetration depth and at a given surface temperature, penetration depths are evaluated and compared to the processing parameters of the experiments. On the basis of these results, possible technical applications concerning the welding of thermoplastic plastics and winding of fibre-reinforced thermoplasts (filament winding) is discussed.