[f. FLANGE v. + -ING1.] The action of the vb. FLANGE.
1861. W. Fairbairn, Iron, 150. Iron containing from 1/4 to 1/2 per cent. of carbon, and capable of bearing from 90,0000 to 100,000 lbs. per square inch, is most suitable for general purposes, but it is especially so for steam boilers, as it will bear punching and flanging like a sheet of copper.
1869. Sir E. J. Reed, Shipbuild., vi. 105. Blows are struck on the flanges, by the workmen, at intervals, so as to facilitate the flanging.
b. attrib. and Comb., as flanging-hammer, -machine, -press.
1874. Knight, Dict. Mech., I. 876/1. Flanging-machine. (Sheet-metal.) A machine usually having two rollers so constructed and arranged as to bend over the edge of a piece of tin-plate which is passed between them. Ibid. (1884), 344/2. Flanging Hammer. A machine for turning flanges on sheet-metal for boilers, tanks, furnace-fronts, girders, parts of steam vessels, etc. Ibid., 345/2. Flanging Press.
