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

Topic: Beam welding

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.

Beam welding

Energy is transferred by laser or electron beamMelted material creates weld joint after cooling down Weld is narrow, additional material is not necessary Welding is usually done under protective gas

Beam welding

Beam focusing to point of 1 mm diameter will heat it up to 20.000 CDepth of weld depends on beams diameter speed of feed and laser efficiency Welding by laser beam

Steering spindle welded by laser beam

Welds all weld-able materials High speedNarrow welding width Small temperature deformationHigh tensile strength Advantages of laser beam weldingDisadvantage of laser beam weldingVelk investin nkladyOdstnn pracovit proti uniknut laserovho paprsku

Welding by electron beam

Electron beam achieves narrower and deeper welds It is an advantage to weld layer melt able metals (high melting temperature) Alloys covered by layer of difficult melt able oxide (aluminum) Field of using aircraft building

Electron beam welding

Welding of difficult weld able metals, for example: titanium and its alloys High precision of beams guidance and high weld strength

Advantage of electrode beam welding

High investment and operation costs Difficult preparation of welding partsNecessity of work place shielding against roentgen radiation Disadvantages of electron beam welding

What are the advantages of electron beam welding?Question and rerun

DILLINGER, Josef. A KOL. Modern strojrenstv pro kolu i praxi. 1. Praha: Europa-Sobotles, 2007. ISBN 978-80-86706-19-1. M. HLUCH, J. KOLOUCH, R. PAK. Strojrensk technologie II

Used literature