Evaluation of molten zone in micro-welding of glass by picosecond pulsed laser

Okamoto Y, Miyamoto I, Cvecek K, Okada A, Takahashi K, Schmidt M (2013)


Publication Type: Journal article

Publication year: 2013

Journal

Book Volume: 8

Pages Range: 65-69

Journal Issue: 1

DOI: 10.2961/jlmn.2013.01.0013

Abstract

Glass materials have been widely used in optics, MEMS, electronics and biomedical applica-tions because of their excellent optical, mechanical and chemical properties. Fusion welding by ul-trashort pulsed laser has been proposed as a promising technique for glass joining, since joining can be accomplished without an intermediate layer and mechanical contact. However, to apply a fusion welding technique by ultrashort pulsed laser as a reliable joining method, it is important to under-stand the mechanical properties of the weld seam since glass materials are very sensitive to tempera-ture gradients. Therefore, a method of evaluating the weld seam in the fusion welding of glass by picosecond pulsed laser was discussed, and its mechanical strength was investigated. A larger opti-cal contact area had a great influence on the shear load of the weld seam, while a smaller optical contact area could reduce the influence of the contact area on the measurement of shear load. There-fore, it was important to reduce the optical contact area to accurately evaluate the shearing strength of weld seam. The mechanical strength of the weld seam reduced at a low pulse repetition rate. High bending strength and shear stress could be obtained at a proper pulse repetition rate.

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How to cite

APA:

Okamoto, Y., Miyamoto, I., Cvecek, K., Okada, A., Takahashi, K., & Schmidt, M. (2013). Evaluation of molten zone in micro-welding of glass by picosecond pulsed laser. Journal of Laser Micro Nanoengineering, 8(1), 65-69. https://doi.org/10.2961/jlmn.2013.01.0013

MLA:

Okamoto, Yasuhiro, et al. "Evaluation of molten zone in micro-welding of glass by picosecond pulsed laser." Journal of Laser Micro Nanoengineering 8.1 (2013): 65-69.

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