Diode Laser Assisted Filament Winding of Thermoplastic Matrix Composites

Materials

Fabrizio Quadrini¹  Erica Anna Squeo² 

[1] Department of Mechanical Engineering, University of Rome Tor Vergata, Via del Politecnico 1, 00133 Rome, Italy;

关键词: diode laser;    laser processing;    thermoplastic prepreg;    filament winding;    composite material;    thermoplastic matrix composites;   

DOI  :  10.3390/ma3010563

来源: mdpi

【 摘 要 】

A new consolidation method for the laser-assisted filament winding of thermoplastic prepregs is discussed: for the first time a diode laser is used, as well as long glass fiber reinforced polypropylene prepregs. A consolidation apparatus was built by means of a CNC motion table, a stepper motor and a simple tensioner. Preliminary tests were performed in a hoop winding configuration: only the winding speed was changed, and all the other process parameters (laser power, distance from the laser focus, consolidation force) were kept constant. Small wound rings with an internal diameter of 25 mm were produced and compression tests were carried out to evaluate the composite agglomeration in dependence of the winding speed. At lower winding speeds, a strong interpenetration of adjacent layers was observed.

【 授权许可】

CC BY   
© 2010 by the authors; licensee MDPI, Basel, Switzerland.