Discussion on "Modern oxy-acetylene production welding" at the Western Section of the Institution

MR. WHITEHEAD (Section President): What advantages has acetylene welding over the metallic arc method of electric welding? In the "Lindeweld" installation. How were the joints tested? Welded joints on aeroplane fuselages were shown on the film. I am, however, under the impression that that is out of practice in England to-day, though a lot is done in that way on the Continent. I was in Amsterdam lately and saw quite a lot of it being done. The torch is also used for lining up the fuselage, if they are out they are just set straight by the use of the torch, but I was certainly of the opinion that as far as England is concerned welding is not much used now. With regard to exhaust manifolds, I agree that these are still welded in this country, and I might say I recognised the particular engine shown on the film as being of Bristol design. The exhaust manifolds on that engine to-day are partially welded and partially riveted, but I believe riveting is taking the place of the welding. With regard to aluminium welds, is it not true that at the point of the weld in aluminium, corrosion will take place afterwards?