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Niino H.,Japan National Institute of Advanced Industrial Science and Technology | Niino H.,Laser Process
ICALEO 2012 - 31st International Congress on Applications of Lasers and Electro-Optics | Year: 2012

This paper is discussed about Japanese-style of research structures and funding systems; technology transfer from research institutions (academic sites) to Industry in Japan.

Takahashi K.,Osaka University | Tsukamoto M.,Osaka University | Masuno S.,Osaka University | Sato Y.,Osaka University | And 6 more authors.
Journal of Materials Processing Technology | Year: 2015

An experimental investigation of carbon fiber reinforced plastic (CFRP) composite processing with a high-power pulsed fiber laser was conducted. A CFRP plate was irradiated with laser light from a pulsed fiber laser with an average power of 125 W, a repetition rate of 167 kHz and a pulse width of 10 ns. The wavelength of the laser light was 1064 nm. A galvanometer scanner was used as the processing head for high-speed scanning of the pulsed laser light. A hatching distance was introduced, and the processing rates were measured according to the parameters of hatching distance and scanning speed. The walls at the grooves irradiated by laser light were observed using scanning electron microscopy (SEM) and cross-sectional profiles of the processed CFRP were measured using confocal laser scanning microscopy (CLSM). The kerf width was measured by optical microscopy observation of the CFRP sample surface processed by laser irradiation. The growth mechanism of the kerf and heat affected zone (HAZ) structures was investigated based on cross-sectional SEM micrographs of the kerfs. The optimal hatching distance for the target groove depth is discussed, together with the importance of the hatching distance for high-speed and high-quality processing of CFRP. The results indicate that adjustment of the hatching distance and the scanning speed are important for obtaining both good cutting speed and quality. © 2015 The Authors.Published by Elsevier B.V.

Niino H.,Japan National Institute of Advanced Industrial Science and Technology | Niino H.,Laser Process | Kurosaki R.,Japan National Institute of Advanced Industrial Science and Technology
Proceedings of SPIE - The International Society for Optical Engineering | Year: 2011

In this paper, we report on a micro-cutting of carbon fiber reinforced plastics (CFRP) by nanosecond-pulsed laser ablation with a diode-pumped solid state UV laser (DPSS UV laser, λ= 355nm). A well-defined cutting of CFRP which were free of debris and thermal-damages around the grooves, were performed by the laser ablation with a multiple-scan-pass irradiation method. CFRP is a high strength composite material with a lightweight, and is increasingly being used various applications. UV pulsed laser ablation is suitable for laser cutting process of CFRP materials, which drastically reduces a thermal damage at cut regions.

Laser Process | Entity website

Accredited to: BS En ISO 9001:2008 Certificate number: 25210 Assessment body: NQA Scope of supply: The supply of laser cut parts and the provision of laser cutting and press brake services. LaserProcess is committed to providing a quality service, at the right time and at competitive prices ...

Laser Process | Entity website

Why not come and talk to Laser Process staff at one of the following exhibitions.Coming in 2015 - details to follow:Northern Manufacturing - Manchester, October2016Southern Manufacturing - Farnborough, FebSubcon - NEC, June

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