Method and apparatus for laser welding thermoplastic resin...

B - Operations – Transporting – 23 – K

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

B23K 26/18 (2006.01) B23K 20/02 (2006.01)

Patent

CA 2564571

A method and apparatus for welding members formed of thermoplastic resin material, with high welding strength and small strength variations. A laser welding apparatus 1 brings a first member 2 formed of a transmissive thermoplastic resin that transmits a laser beam into contact with a second member 3 formed of an absorptive thermoplastic resin that absorbs the laser beam, and joins the thermoplastic resin members by melting their contact surfaces 4 with the laser beam. The laser welding apparatus 1 further comprises a laser beam generator 10 for irradiating the contact surfaces with the laser beam shone from the side of the first member 3 so as to melt at least one of the contact surfaces of the first member and the second member. The apparatus also comprises a clamp mechanism 20 for pressing the first member and the second member together, a temperature sensor 31 as an adjusting means for adjusting the pressing force applied to the first member and the second member, and a personal computer 32 for calculating the pressing force based on the output of the temperature sensor. The clamp mechanism is controlled with the calculated pressing force.

Une méthode et un appareil de soudage d'éléments fait de résine thermoplastique, au moyen d'une force de soudage élevée et un faible degré de variation dans la force. Un appareil de soudage au laser 1 amène un premier élément 2 formé de résine thermoplastique transmissive qui transmet un faisceau laser en contact avec un deuxième élément 3 formé de résine thermoplastique absorptive qui absorbe le faisceau laser et joint par fusion les surfaces de contact 4 des éléments en résine thermoplastique au moyen d'un faisceau laser. L'appareil de soudage au laser 1 est en outre équipé d'un générateur de faisceau laser 10 qui irradie les surfaces de contact avec le faisceau laser depuis le côté du premier élément 3 pour fusionner au moins une des surfaces de contact du premier élément et du deuxième élément. L'appareil est aussi muni d'un mécanisme de retenue 20 qui comprime ensemble le premier élément et le deuxième élément, un capteur de température 31 servant de moyen de réglage de la pression de compression exercée sur le premier élément et le deuxième élément, ainsi qu'un ordinateur personnel 32 pour calculer la force de compression à partir de la valeur de sortie du capteur de température. Le mécanisme de retenue est contrôlé à l'aide de la force de compression calculée.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Method and apparatus for laser welding thermoplastic resin... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for laser welding thermoplastic resin..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for laser welding thermoplastic resin... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-2043661

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.