Fig. 2892.
Fig. 2893.
Welds of this kind are obviously most suitable for cases in which the weld is required to influence the shape of the piece as little as possible. The figures above, which are taken from Mechanics, illustrate as an example the repairing of a broken strap for the beam of a river steamboat. The crack is at a, [Fig. 2889], and is held together by a clamp as shown; a V-recess is cut out as in [Fig. 2890], and this recess is fullered larger, as in [Fig. 2891]. A V-block is then welded in. The strap is then turned over a second V-groove, cut out and fullered out, and a second V-piece welded in. By thus welding one side at a time the welding is taken in detail as it were, and the blows can be less heavy than if a larger weld were made at one heat, as would be the case if but one V block were used. A similar form of weld may be employed to form a square corner, as is shown in [Fig. 2892], which is taken from “The Blacksmith and Wheelwright.” In this example the inside corner is shown to have a fillet, which greatly increases the difficulty of the job. The weld is made by first fullering the V-piece on the sides and on the rounded corner and then laying the piece on the anvil to forge down, the fullering leaving the finished job as in [Fig. 2893].
Fig. 2894.
