Get Audel Welding Pocket Reference PDF
By James E. Brumbaugh
That includes up-to-date charts facing the commonest events welding staff face at the task , this finished, pocket-sized reference relies on options from operating execs and covers welding symbols and definitions, forms of joints and welds, regular welding station configurations, oxygen cylinders, arc-welding charts, U.S metric measures, and extra.
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Additional resources for Audel Welding Pocket Reference
For acetylene and other fuel gases the outlet connections have left-hand threads. Both single-stage and two-stage regulators are available for use in welding systems. Many regulators are constructed with two gauges. One gauge (the high-pressure gauge) indicates the pressure of the gas in the cylinder, and the other (the low-pressure gauge) indicates the working pressure of the gas being delivered to the torch. A single-stage regulator requires torch adjustments to maintain a constant working pressure.
A narrower V-groove (30◦ bevel, or 60◦ included angle) is required than with the forehand welding method. As a result, backhand welding provides greater control and reduced welding costs. Adding Filler Metal The end of the welding rod should be melted by keeping it beneath the surface of the molten weld puddle. Never allow 40 2. Oxyacetylene Welding N CTIO DIRE ELDING W F O FOREHAND WELDING N CTIO DIRE ELDING OF W BACKHAND WELDING Fig. 2-8 Backhand welding method: The torch tip moves ahead of the welding rod.
Failure to dip the welding rod into the weld puddle fast enough. Adhesions. Brittle welds. Possible Cause a. Insufficient heat was directed to one side of the joint. b. Welding speed too high, causing the weld metal to break cleanly from the metal surface on one side. Caused by using a carburizing flame. It is important for the welder to use the correct flame when welding. Caused by moving the flame so slowly that too much heat is directed into the weld puddle. This results in the formation of excess metal icicle deposits on the bottom of the weld.
Audel Welding Pocket Reference by James E. Brumbaugh