CO2 Laser CuttingThe laser has given manufacturing industry a new tool. When the laser beam is focused it can generate one of the world's most intense energy sources, more intense than flames and arcs, though similar to an electron beam. In fact the intensity is such that it can vaporise most known materials. The laser material processing industry has been growing swiftly as the quality, speed and new manufacturing possibilities become better understood. In the fore of these new technologies is the process of laser cutting. Laser cutting leads because it is a direct process substitu tion and the laser can usually do the job with greater flexibility, speed and quality than its competitors. However, to achieve these high speeds with high quality con siderable know how and experience is required. This information is usually carefully guarded by the businesses concerned and has to be gained by hard experience and technical understanding. Yet in this book John Powell explains in lucid and almost non technical language many of these process wrinkles concerning alignment, cornering, pulsing, water jets, material properties, cutting speeds as well as tricks with surface coating and much much more. It is a book which managers and technicians in laser job shops and laser processing facilities would be foolish not to read. |
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Burning | 35 |
Cutting Nonferrous Metals | 71 |
Cutting Nonmetals | 91 |
Copyright | |
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absorptivity acrylic acrylic sheet alignment alloys aluminium applications approximately axis beam print burning carbon centre Chap chemical chromium CO₂ CO2 laser CO2 laser cutting CO2 molecule copper cross section cut edge cut front cut quality cut zone cutting gas cutting head cutting process cutting speed damage diameter direction drilling effect energy density energy input excited focal length focused spot fumes gas jet gas mixture Gaussian heat helium HeNe beam hole increase kerf width laser beam laser cavity laser cutting laser light laser material laser power lasing lens losses material thickness maximum mechanism melt shearing metals method mild steel millimetres minimised mirror misalignment mode print nitrogen nozzle optical output power output window oxidation reaction oxidised oxygen jet photon plasma cutting polymers position possible produce reflectivity removed result Sect shown in Fig stainless steel steel cutting striations supply pressure surface temperature thermal conductivity titanium wavelength workpiece