Search results
Results from the WOW.Com Content Network
Nonconsumable electrode, slow, high quality welds Aerospace, Construction (piping), Tool and Die Plasma Arc Welding: 15: PAW Nonconsumable electrode, constricted arc Tubing, instrumentation Shielded Metal Arc Welding [5] 111: SMAW Consumable electrode covered in flux, can weld any metal as long as they have the right electrode
AWS D9.1: Sheet metal welding AWS D10.10: Heating practices for pipe and tube AWS D10.11: Root pass welding for pipe AWS D10.12: Pipe welding (mild steel) AWS D10.13: Tube brazing (copper) AWS D10.18: Pipe welding (stainless steel) AWS D11.2: Welding (cast iron) AWS D14.1: Industrial mill crane welding AWS D14.3: Earthmoving & agricultural ...
This wire normally has a thickness of 1.6 mm to 6 mm (1/16 in. to 1/4 in.). In certain circumstances, twisted wire can be used to give the arc an oscillating movement. This helps fuse the toe of the weld to the base metal. [4] The electrode composition depends upon the material being welded. Alloying elements may be added in the electrodes.
Shielded metal arc welding. Shielded metal arc welding (SMAW), also known as manual metal arc welding (MMA or MMAW), flux shielded arc welding [1] or informally as stick welding, is a manual arc welding process that uses a consumable electrode covered with a flux to lay the weld.
More than 5% oxygen makes the shielding gas oxidize the electrode, which can lead to porosity in the deposit if the electrode does not contain sufficient deoxidizers. O-2 (98% argon/2% oxygen) is used for spray arc on stainless steel, carbon steels, and low alloy steels. Better wetting than O-1. Weld is darker and more oxidized than with O-1.
English: Diagram of arc and weld area, in shielded metal arc welding, free for description for any language Coating Flow; Rod; Shield Gas; Fusion; Base metal; Weld metal; Solidified Slag; For a reference see File:SMAW weld area.svg (U.S. Army training circular 9-237, figure 5-31)
The voltage needed for welding depends on the resistance of the material to be welded, the sheet thickness and desired size of the nugget. When welding a common combination like 1.0 + 1.0 mm sheet steel, the voltage between the electrodes is only about 1.5 V at the start of the weld but can fall as low as 1 V at the end of the weld.
Date/Time Thumbnail Dimensions User Comment; current: 08:52, 14 January 2013: 486 × 594 (251 KB): Meisam {{Information |Description ={{en|1=Brazing and soldering processes classification chart}} |Source =AWS A3.0:2001, Standard Welding Terms and Definitions Including Terms for Adhesive Bonding, Brazing, Soldering, Thermal Cutting, and Thermal S...