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CHAPTER V WELDING——CONCLUDED. IN making a jump weld with stock as shown in Fig. 35, a short piece of l^-in. square iron is jumped onto a flat piece 1-1/4 in. The square piece is prepared by upsetting the end with a Fig. 35. Stock for a Jump Weld short heat and fullering a lip on it, as shown in the drawing, or the piece may be upset and then driven into a square heading tool, afterward fullering it so as not to have any sharp corners, for the reason that it is liable to crack while working it. The bottom part of this bar should be hammered slightly convex in order to let the slag work 64 |
Hand Forging by Thomas F. Googerty