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Anglicky v odbornch pedmtech"Support of teaching technical subjects in EnglishTutorial: Engineering technology

Topic: Laser cutting

Prepared by: Ing. Josef Martink st.

Projekt Anglicky v odbornch pedmtech, CZ.1.07/1.3.09/04.0002je spolufinancovn Evropskm socilnm fondem a sttnm rozpotem esk republiky.

At fusible laser cutting, melted material is blown out of cutting by inert gas, mostly by nitrogen or argon.

Cutting jetCutting gasGas flowPointed laser jetCutting jointmateriallenseLaser jetPicture 1 Fusible laser jet cutting

Chart: Laser jet cuttingUsageMaterial thickness (examples)Cutting speedCutting gasAdvantagesDisadvantagesAll kinds of steel, aluminium alloys, plastics, ceramics10 mm for steel0,1 mm for plastic filmsFor steelFor plastic filmsNitrogen, argon, oxygenCutting of many different materials, high-quality cutting, high cutting speedNecessary precautions, expensive cutting machine

Laser cuts examples

Picture 2 Laser cut products

High alloyed steelsAluminium alloysSemiconductor materialsPlastics and other materialsCeramic materialsSuitable materials for flame cutting

Laser Trulaser 5030 ClasicTruamtic L3050 Both with CO2 and 5000 W outputCutting systems

Structural steels carbon and low alloyedAluminium alloysBrass

Metal materials cutting

Smooth cuttingCutting surface does not need to be machined additionallyIt is possible to cut very small holes and difficult forms Advantages of laser jet cutting

By laser cutting fume and irritant gases are producedThese must be extracted Necessary precautions

Describe laser jet cutting headWhat kinds of cutting gases do we use?Name disadvantages of laser jet cutting?Questions and revision

DILLINGER. KOLEKTIV. Modern strojrenstv pro kolu i praxi. ISBN 9788086706191. pro konkurenceschopnost, ESF 2007 2013.Translation:www.seznam.czwww.slovnik.czJANATA, Petr. Handy slovnk technick anglicko-esk a esko-anglick. Plze: Nakladatelstv Fraus, 2000. ISBN 80-7238-075-3Lingea LEXIKON 5, Technick slovnk anglicko-esk a esko-anglick. 2010.

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