Ethan Bale Using the appropriate type and amount of shielding gas is an important way to prevent carbide precipitation when TIG welding stainless steel. Typically, pure argon provides the best results when welding thinner austenitic stainless steel, but the addition of small percentages of helium is not uncommon when better penetration and faster travel speeds are desired, … Read more
Pipe Welding : General The most commonly used processes for joining pipes are the manual oxyacetylene process and manual shielded metal-arc process. Automatic and semiautomatic submerged arc, inert gas metal-arc, and atomic hydrogen welding are also used. particularly in shop operations. The manual shielded metal-arc process may be used for welding all metals used in … Read more
When TIG welding aluminum, direct current straight polarity (DCSP) is the most commonly used. This article seeks to discuss welding techniques, joint designs, and types of aluminum alloys that can be welded, when TIG welding aluminum with DCEN (or direct current electrode negative). Note that DCEN and DCSP are same. Characteristic Of TIG Welding Aluminum … Read more
Characteristic Of TIG Welding Aluminum With Direct Current Straight Polarity In this process, using helium and thoriated tungsten electrodes is advantageous for many automatic welding operations, especially in the welding of heavy sections. Since there is less tendency to heat the electrode, smaller electrodes can be used for a given welding current. This will contribute … Read more
The following terms are used to describe the parts or sections of a weld: Fusion Zone (Filler Penetration) The fusion zone is the area of base metal melted as determined in the cross-section of a weld. Leg Of A Fillet Weld The leg of a fillet weld is the distance from the root of the joint … Read more
Miller 140 MIG Welder with Auto-Set Amperage Rating: 140 DC Input Voltage: 115 Phase: Single Duty Cycle: 90A/[email protected]% Width: 10-5/8 Height: 17-1/2 Automatically setting voltage and wire feed speed for your MIG process welding application, the Millermatic® 140 MIG welder with Auto-Set makes it easy to dial in the right welding parameters. Use Auto-Set when … Read more
Miller TIG Welder Diversion 165 AC/DC TIG Welder has an Easy-to-understand operator interface. The machine has only three switches with which the welder needs to operate the machine: Power switch Material selection switch Amperage control/material selection switch The power source is inverter-based, that works with AC and DC equally well. It has little down time. The … Read more
While aluminum has a melting point less than half that of steel, its conductivity is over three times as great, so we use a tip about the same size for this metal as we do for steel, and because of this conductivity, we should realize that the effects of expansion and contraction must be particularly guarded against, … Read more