Abstract
This chapter deals with penetration welding of overlapped polypropylene (PP) sheets using a tunable CO2 laser with a transparent heat sink. The melt depth in the overlapped PP sheets can be controlled up to approximately 1mm by slight wavelength change in the tunable CO2 laser. Neither thermal damage nor surface melting occurred in the PP sheets. Both experiments and numerical simulations are carried out to clarify the effect of wavelength selection on controllability of the melt depth. The concept of penetration welding using tunable infrared lasers with transparent heat sinks lend itself to various types of materials and thickness of the plastics. Infrared laser welding of overlapped thermoplastics utilizes radiation penetration heating. The two parts are joined when the melt zone is produced at the contact interface.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Novel Materials Processing by Advanced Electromagnetic Energy Sources
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
