Process parameters, such as tool rotational speed and traversing speed, are tested in order to identify the envelope of the process in terms of weld quality and tool integrity. (W 35) (1)

Weld quality = Qualidade da soldadura

Each set of samples was assessed in terms of edge quality by measurement of Rz and squareness, in line with the European standard EN ISO 9013. (W 116) (2)

Edge quality = Alta qualidade

Even minor changes in the operating parameters of the electron beams generated by electron guns can make large enough variations in the beam quality that can result in poor welds. (W 4) (3)

Beam quality = Qualidade do raio / feixe de luz

(1) Numerical investigations of friction stir welding of high temperature materials.

A. Elbanhawy, E. Chevallier, K. Domin 

TWI Ltd, Structural Integrity Technology Group  

Presenter: Dr Amr Elbanhawy, Project Leader at TWI Ltd, Granta Park, Cambridge, CB21 6AL, UK 

NAFEMS world congress, Salzburg, Austria, 9-12 June 2013.

(2) Cutting Stainless Steel with Disc and CO2 Lasers

Paul Hilton  

TWI Ltd, Granta Park Great Abington, Cambridge, CB21 6AL, UK

Paper presented at Proceedings of LAMP2009 – the 5th International Congress on Laser Advanced Materials Processing.

(3) Characterization of high power electron beams using a two-slit probe and Wavelet transforms

Aman Kaur

TWI and Brunel University 

Colin Ribton 

TWI Ltd, Granta Park Great Abington, Cambridge, CB21 6AL, UK 

Professor W. Balachandaran 

Brunel University 

Paper presented at Intelligent Signal Processing Conference. ISP 2015, 1-2 December 2015, London, UK.