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 ...
In parallel, Koch and Mazumder (26) demonstrated the possibility of building up aluminum walls, hollow cylinders and domes with various shapes and dimensions by overlapping tracks of material created by moving a substrate under a fixed laser cladding head. No machining steps were proposed, assuming...
vaporization, and plasma expansion occur. The plasma may be generated through several different mechanisms depending on laser parameters. For nanosecond laser irradiation with intensity < 108 W/cm2, the dominant mechanism of the laser-induced plasma is thermal vaporization, whereas for femtosecond ...
The same research group has developed an improved system involving two rakes with a circular cross-section to spread the powder [20,35]. Figs. 7(b)–(d) [20,33,34] show the different feature shapes that have been fabricated with this modified setup. The difference lies in the powder-re...
The study also demonstrated that the robots can revert to their original 2D shapes and be remodeled to suit different purposes. With varying 3D geometries and laser scanning patterns, they can bend, twist, jump and zigzag. The micro-bots, designed for mass production, have the potential to be...
However, by varying the angle of incidence of the LSP device, other shapes such as rectangular and elliptical can be obtained. To investigate how the spot size affects the residual stress in SLM components, Kalentics et al. [78] conducted a study considering three different spot sizes with ...
Optical refrigeration of RE-doped samples with different shapes and sizes was investigated in [27]. Three different approaches can be used to calculate the optical force applied to a particle. These approaches depend on the size of the particles compared to the wavelength of the laser beam. If...
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Comes in all shapes, sizes, and colors. Durability varies with type; some acrylics are less brittle than others. b. Delrin (acetal): Structurally, perhaps the best plastic. It is extremely strong, durable, more flexible than acrylic, and naturally lubricated. It also is one of the most ...
All shapes can be set to be cut or engraved by the laser cutter Send jobs to an Eplilog™ Zing™ over an Ethernet connection (USB not supported) Send jobs to a GRBL-based laser cutter with support for jogging position of laser head (experimental) ...