. Sheet metal workers' manual; a complete, practical instruction book on the sheet metal industry, machinery and tools, and related subjects, including the oxy-acetylen welding and cutting process . Figure 266.—Sheets Tacked Before Welding, to Prevent Spreading or Figure 267.—Wedge Inserted in Split Tube Ahead of Weld, to Prevent Overlapping. flame more on the angle than on the plate. This willtend to bring the parts to the fusion point at the sametime. Metal must be added as shown by the dotted line. When welding a flat end into a tube, prepare the endas shown in Figure 270, making
. Sheet metal workers' manual; a complete, practical instruction book on the sheet metal industry, machinery and tools, and related subjects, including the oxy-acetylen welding and cutting process . Figure 266.—Sheets Tacked Before Welding, to Prevent Spreading or Figure 267.—Wedge Inserted in Split Tube Ahead of Weld, to Prevent Overlapping. flame more on the angle than on the plate. This willtend to bring the parts to the fusion point at the sametime. Metal must be added as shown by the dotted line. When welding a flat end into a tube, prepare the endas shown in Figure 270, making a driving fit. The welding of flat flanges to tubes is an operation thatrequires care, as the flange is usually considerably thick-er than the tube and has to stand a good deal of strain. 332 SHEET METAL WORKERS MANUAL T7 V Figure 268.—Preparation of Angle Iron and Steel Cylinder of SameThickness Before Welding. 1 I Figure 269.—Dotted Line Shows How Filling Material Must Be When Welding Angle to Thinner Section Plate.
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