Economy in Stud Welding Demonstrated to Engineers
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PAA DVANTAGES of the Nelson studwelding system were demonstrated recently by Cooke and Ferguson, Ltd., Openshaw, Manchester, 11, to a gathering of engineers. By the use of the Nelson welding pistol, studs can be fused to metal surfaces without the necessity of drilling or tapping. The saving in time is obvious.
The whole procedure is entirely automatic and lt is stated that welding workers can be trained in four hours to produce first-class results. The standard model will operate with studs from in. to in. in diameter and the equipment includes a control box which automatically fixes the complete welding cycle. 'l he pistol is linked to a D.C. welding generator and the timing adjustment for the applicable diameter of stud is quickly made. A flux-loaded stud is then placed in the gun, followed by a ferrule which contfols the arc. When ready, the stud is placed in contact with the surface to which it is to be attached, the control is pressed and the automatic welding action takes place.
During the .demonstration a number of engineers tested the apparatus and welded studs in position in less than a second. The method has many obvious advantages and further demonstrations are to be staged in London, Glasgow and Newcastle-upon-Tyne.