Welding of aluminium tailored blanks by Nd: YAG lasers

Use of lasers in the treatment of various types of glaucomas is an important aspect in ophthalmic practice. Both Argon and Yag lasers are now-a-days commonly used in the treatment of angleclosure and open-angle glaucomas. Besides this, more recently, Diode lasers are being used for the treatment of the glaucomas. Lasers are also being used in the management of intractable glaucomas which are not controlled by medication alone. In this review article, all these features have been highlighted. Keywords: Lasers; glaucoma DOI: 10.3126/nepjoph.v2i1.3705 Nep J Oph 2010;2(1) 51-58

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High repetition rate electrooptic Q-switching of Nd<sup>3+</sup>:YAG lasers showing strong optical birefringence

IEEE Journal of Quantum Electronics ◽

10.1109/jqe.1980.1070508 ◽

1980 ◽

Vol 16 (4) ◽

pp. 439-445 ◽

Cited By ~ 4

Author(s):

Chen-Hsi Chang ◽

K. Hirsch ◽

H. Salzmann

Keyword(s):

Repetition Rate ◽

High Repetition Rate ◽

Optical Birefringence ◽

High Repetition ◽

Yag Lasers ◽

Q Switching

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Investigations on the Mechanical Properties and Formability of Friction Stir Welded Tailored Blanks

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.344.143 ◽

2007 ◽

Vol 344 ◽

pp. 143-150 ◽

Cited By ~ 6

Author(s):

Gianluca Buffa ◽

Livan Fratini ◽

Marion Merklein ◽

Detlev Staud

Keyword(s):

Mechanical Properties ◽

Stress Condition ◽

Research Effort ◽

High Strength Steels ◽

High Strength ◽

Tensile Tests ◽

Friction Stir ◽

Tailored Blanks ◽

Sheet Stamping ◽

Wide Range

Tight competition characterizing automotive industries in the last decades has determined a strong research effort aimed to improve utilized processes and materials in sheet stamping. As far as the latter are regarded light weight alloys, high strength steels and tailored blanks have been increasingly utilized with the aim to reduce parts weight and fuel consumptions. In the paper the mechanical properties and formability of tailored welded blanks made of a precipitation hardenable aluminum alloy but with different sheet thicknesses, have been investigated: both laser welding and friction stir welding have been developed to obtain the tailored blanks. For both welding operations a wide range of the thickness ratios has been considered. The formability of the obtained blanks has been characterized through tensile tests and cup deep drawing tests, in order to show the formability in dependency of the stress condition; what is more mechanical and metallurgical investigations have been made on the welded joints.

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BICOLOR OPTICAL TREATMENT OF MULTI-LAYERS FILM SAMPLES

International Journal of Modern Physics B ◽

10.1142/s0217979210054993 ◽

2010 ◽

Vol 24 (08) ◽

pp. 937-942 ◽

Cited By ~ 1

Author(s):

K. OZGA ◽

J. EBOTHÉ ◽

H. NGUYEN CONG ◽

D. MARTEL ◽

W. GRUHN ◽

...

Keyword(s):

Electric Field ◽

Power Density ◽

Local Heating ◽

Independent Measurement ◽

Yag Lasers ◽

Optical Susceptibility ◽

Dc Electric Field ◽

Optical Treatment ◽

532 Nm ◽

Multi Layer Film

In the present paper, we study the influence of simultaneous polarized optical treatment (10 ns Nd: YAG lasers with wavelengths 1064 nm and 532 nm with power density 0.6 GW/cm2) together with electrostatic dc electric field (up to 8 kV/cm) on self-assembled multi-layer film samples. The second-order optical susceptibility (SOS) achieves the maximal values after one minute simultaneous dc electrical-optical treatment. Further treatment will not enhance the values and even leads to the decrease of SOS. The independent measurement of the local temperature shows that local heating does not exceed 10.1 K.

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Development of High-Power Micro-Thickness-Slab Yb: YAG Lasers

The Review of Laser Engineering ◽

10.2184/lsj.33.236 ◽

2005 ◽

Vol 33 (4) ◽

pp. 236-242 ◽

Cited By ~ 1

Author(s):

Sakae KAWATO ◽

Keiichi SUEDA ◽

Takao KOBAYASHI

Keyword(s):

High Power ◽

Yag Lasers

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