Laser cutting

Ebook "Quantum dynamics and laser control for photochemistry" description of ultrafast dynamical processes in molecular systems of chemical interest and their control by laser pulses. This work encompasses different cutting-edge methods in quantum chemistry, quantum dynamics and for the rigorous description of the interaction of light and matter at the molecular level. It provides a general quantum mechanical framework for the description of chemical processes guided by laser pulses, in particular near conical intersections, i.e.

198p tracanhphuonghoa1007 22-04-2024 3 2   Download

Ebook "Bioprinting in regenerative medicine (Stem cell biology and regenerative medicine series)" presents the current state of laser-assisted bioprinting, a cutting edge tissue engineering technology. Nineteen chapters discuss the most recent developments in using this technology for engineering different types of tissue.

148p manmanthanhla0201 26-02-2024 3 1   Download

Part 1 book "The cutting EDGE 3 - Basic veterinary surgery techniques" includes content: Clinical problem solving in surgery; principles of asepsis, disinfection and sterilization; surgical instruments; electro, cryo, laser and endoscopic surgery; suture materials and suture techniques; surgical infections and antimicrobial prophylaxis; wound management and first aid; fracture repair and bone healing; the surgical tumor patient.

212p oursky09 12-11-2023 3 2   Download

Laser technology provides advantages in cutting complex geometries, stable quality and possibility to utilize fabric and leather materials in economically best way. Constant quality is important in industrial processes of laser technology cutting. Additionally, laser technology is very flexible in terms of geometries such as complex geometries, individual parts and small scale products.

5p vifriedrich 25-08-2023 6 2   Download

Microstructural, optical, AC dielectric impedance, and conductivity properties of pure PVA and PVA: NaSe SCF samples doped with various NaSe salt fillers were investigated. The XRD study confirmed the semicrystalline structure of the PolVA:NaSe SCF samples which explicated the semi-crystalline nature of the pure PolVA as a matrix.

10p viberbers 09-08-2023 4 4   Download

This paper presents the design of a compliant bio-inspired camera-positioning mechanism. The device combines human muscle actuation scheme and spherical mechanism with the aim of miniaturizing the orienting mechanism.

8p vidoctorstrange 06-05-2023 10 5   Download

In this paper, an attempt has been made to develop a mathematical model in order to study the relationship between laser cutting parameters such as laser power, cutting speed, assist gas pressure and focus position, and kerf taper angle obtained in CO2 laser cutting of AISI 304 stainless steel.

10p toritori 11-05-2020 4 0   Download

Selective laser sintering (SLS) is known as a cutting-edge technique to manufacture complex geometry products. Among various kinds of materials, Ti-6Al-4V is one of the most popular materials for the SLS process. The as-built Ti-6Al-4V products were widely applied in many applications such as aerospace, automobile, and especially in medical and implant parts.

9p vidonut2711 08-11-2019 9 0   Download

Forty-two ditch cutting samples of the KR-1 offshore well from depths of 9660 ft to 10,920 ft composited at 90-ft intervals were subjected to sedimentological, micropaleontological, and geochemical analyses using standard procedures and the laser ablationinduced coupled plasma mass spectrometry technique, respectively. Sedimentological analysis revealed the presence of glauconites and the rare occurrence of framboidal pyrites, indicative of deposition in a slightly anoxic marine environment.

19p viminotaur2711 30-10-2019 12 1   Download

This study aims to improve the reliability of laser cutting for such work and indicates guidelines to optimize the cutting procedure, in particular, nozzle combinations (standoff distance and focus position), to minimize waste material. The results obtained show the performance levels that can be reached with 10 kW fiber lasers, using which it is possible to obtain narrower kerfs than those found in published results obtained with other lasers. Nonetheless, fiber lasers appear to show the same effects as those of CO2 and ND:YAG lasers.

8p minhxaminhyeu4 26-06-2019 13 0   Download

We present the design and development of folded four-mirror resonators for diode end-pumped solid-state Cr:LiSAF lasers. The astigmatic effects due to the Brewster-cut laser crystal and two curved mirrors used at oblique incidence were taken into consideration. The obtained results showed the stability regions of resonator, the beam parameters in the resonator and within the laser crystal as well as other sensitive parameters and their variation ranges. Furthermore, the designed folded four-mirror resonators for diode end-pumped Cr:LiSAF laser were experimentally evaluated.

12p thuyliebe 09-10-2018 33 0   Download

Often practitioners of testing, accelerated testing, reliability testing, computer modeling and other validation tools focus on the science and math of the tool: what is innovative and cutting edge (which means “cool and fun to work on”), instead of the reason for using the tools. In this sense, testing and computer modeling engineers are a lot like kids—if you give a kid a hammer, everything will need pounding; give an engineer some neat new test method, math algorithm, or computer tool and every project will need it....

253p nguyenthai_thinh 14-03-2013 46 8   Download

Tungsten Carbide - Processing and Applications, provides fundamental and practical information of tungsten carbide from powder processing to machining technologies for industry to explore more potential applications. Tungsten carbide has attracted great interest to both engineers and academics for the sake of its excellent properties such as hard and wear-resistance, high melting point and chemically inert. It has been applied in numerous important industries including aerospace, oil and gas, automotive, semiconductor and marine as mining and cutting tools, mould and die, wear parts, etc.

146p crius75 02-01-2013 79 6   Download

Bronchoscopy has become an essential part of modern medicine. Recent advances in technology have allowed integration of ultrasound with this tool. The use of lasers along with bronchoscopes has increased the therapeutic utility of this device. Globally an increasing number of pulmonary specialists, anaesthesiologists and thoracic surgeons are using the bronchoscope to expedite diagnosis and treatment. The current volume on bronchoscopy adds to the vast body of knowledge on this topic.

250p bachduong1311 10-12-2012 60 4   Download

We describe two projects that explore this territory of easy-to-use domain-oriented tools that help naïve users design three-dimensional models. Using the Furniture Factory users sketch, model, and produce a class of furniture models. The Designosaur enables its users to make models of dinosaurs, both real and imaginary. Both projects enable users to begin by sketching a design and both employ a laser cutter as the output medium, to cut model materials from flat material such as wood or plastic sheets.

28p connhobinh 09-12-2012 64 2   Download

Several techniques for fabrication of through-wafer vias in silicon have been compared in terms of achievable via diameter, shape and geometry and their influence on mechanical strength of silicon dies/wafers. Assessed techniques are: powder blasting, laser melt cutting, laser ablation, and deep reactive ion etching. The resolution of each method and influence on geometry was evaluated by fabrication through-wafer holes and slots in 240µm-thick silicon wafers. The mechanical strength is measured using ring-on-ring (RoR) and four-point bending methods.

17p quynho77 13-11-2012 34 0   Download

This book covers a wide range of topics relating to advanced industrial robotics, sensors and automation technologies. Although being highly technical and complex in nature, the papers presented in this book represent some of the latest cutting edge technologies and advancements in industrial robotics technology.

350p kimngan_1 05-11-2012 45 12   Download

I like playing around with words and letters. You probably know that LASER is an artificial word derived from “Light Amplification by Stimulated Emission of Radiation”. When starting my lecture on “Laser–Tissue Interactions” I tend to write this derivation on the board. I continue with “LIGHT: Lasers Irradiate Germinated and Healthy Tissues”. Why? Lasers cut everything, if appropriate laser parameters are selected. There is no shield around healthy tissue. And there is no laser that fits all sizes as some clothes do. Lasers never have been some kind of wonder instruments.

316p chuyenphimbuon 21-07-2012 86 18   Download

Invention of the solid-state laser has initiated the beginning of the laser era. Performance of solid-state lasers improved amazingly during five decades. Nowadays, solid-state lasers remain one of the most rapidly developing branches of laser science and become an increasingly important tool for modern technology. This book represents a selection of chapters exhibiting various investigation directions in the field of solid-state lasers and the cutting edge of related applications.

288p 123859674 02-07-2012 54 6   Download