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Laser Resources opens up new possibilities in polymer joining technology

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article image Polymer Welding

Seams can now be welded near sensitive electronic components to create aesthetic bonds and invisible bonds with high-quality surfaces without debris and pores after the welding process.

It is possible to weld all thermal polymers as well as some thermo-plastic elastomers in principle. The common method for polymer welding is overlap welding. The upper layer must be transparent to the laser beam and the laser radiation is absorbed by the lower layer. Since the welding process takes place within the component, there are no heat stress sensitive components, contamination or vibration.

To suit requirements, ROFIN offers diode lasers with direct beam (SWD, DL-R Series) or fiber coupling (SWD) and diode-pumped YAG lasers with scanner heads (SWD-Y Series, SW Disc). These lasers offer the required range of laser wavelengths (808, 940, 1030, 1064 nm) and weld path widths. Maximum flexibility is offered by this range with respect to choice of welding method and colored polymers, for instance, contour or quasi-simultaneous welding.

Besides the above range of lasers, the StarShape C (CO2 laser with scanner) is available from Laser Resources . It is a suitable tool for welding of thin polymer foils. Moreover, the company also offers complete system solutions such as PolyScan.

For almost all requirements, ROFIN offers a laser solution, and a team of application engineers is ready to support the manufacturing process.

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