1 show differences in surface morphology of PLLA scanned by laser with different wavelength and overlapping of pulses where the labels of samples e.g. IR_30 indicates laser wavelength 1030 nm and distance between centres of following pulses 30 μm referred as pulse spacing. When the samples ...
Desired pulse shapes, such as multiple-step, square, parabolic, and Gaussian pulses, were achieved, with a high peak power level of 41.6 kW and a narrow linewidth less than 0.06 nm. In addition, through second harmonic generation (SHG), a green laser with different pulse shapes was obtained...
Stellite12 cobalt base alloys with different WC content were deposited on SK3-carbon tool steel by laser cladding. The behavior of WC particulates, including the dissolution, distribution, and microstructures of WC–Co–Cr–C composite coatings with rapidly solidifying were investigated using scanning ...
Best quality metal sheet & pipe fiber laser cutter is a type of automatic CNC laser metal cutting system not only for metal sheets and metal plates with different thickness, but also for metal sheet and metal tubes with different shapes. ...
Three typical double-pulse shapes are presented below: 1) two closely conjoint pulses with same pulse duration and same repetition-rate but different pulse energy; 2) two closely conjoint pulses with same pulse duration but different repetition-rate and different pulse energy; 3) two conjoint ...
Fig. 13 shows the SEM micrographs of the wear scars of laser-cladded FeNiCoAlCu high-entropy alloy coating at different temperature. From Fig. 13a, c, e and g, it seems to show that the breadth of wear scar appears a decrease trend with the increase of temperature. however when the tem...
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shapes by laser melting with a large spot, the quality of the parts and the maximum size of the parts. To recreate the solar concentrated light in this study, a CO2laser with a maximum power of 12 kW and spot diameter up to 100 mm was used. A lunar regolith simulant was used as ...
Solution of inverse problem in nonlinear laser fluorimetry of organic compounds with the use of artificial neural networks / S. Dolenko, T. Dolenko, V. Fadeev et al. // .— 1999. — Vol. 9, no. 3. — P. 510–515. Artificial neural networ... SA Dolenko,TA Dolenko,VV Fadeev,.....
The microstructures of the deposited metal at a gas flow rate of 10 L/min were composed of the coarse lath α phase in upper region and the acicular martensite α′ with different size scales in middle and bottom regions. With increasing the gas flow rate to 20 L/min, the ...