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- de Graaf, G. (author), Bartek, M. (author), Xiao, Z. (author), van Mullem, C.J. (author), Wolffenbuttel, R.F. (author) journal article 2001
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Aendenroomer, A.J. (author), Den Ouden, G. (author), Xiao, Y.H. (author), Brabander, W.A.J. (author)Described is a method of automatically welding pipes, comprising welding with a pulsation welding current and monitoring, by means of a sensor, the variations occurring in the arc voltage caused by weld pool oscillations. The occurrence of voltage variations with only frequency components below 100 Hz indicates excessive welding through; the...patent 1995
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- Xiao, Y.H. (author) doctoral thesis 1992