The devil is in the details, especially when it comes to welding processes. This technology area has information on consumables, including cutting tips, electrodes and wire, spatter prevention compounds, temporary purge dams, and welding torch components.
May 11, 2011
Flux-cored welding is growing in popularity, yet its dependence on high concentrations of CO2 has prevented fabrication shops that employ a bulk gas delivery system from using the process. Recently wires have been developed that utilize a higher content of argon and a lower content of CO2. The result is a wire that provides low spatter, less welding fumes, and higher out-of-position deposition rates, as well as excellent weld characteristics in the vertical and overhead positions.
March 14, 2011
Even though metal-cored wires have been gaining popularity in recent years, there seems to be some mystery and misconceptions surrounding this filler metal. To better understand these wires it helps to consider the technology behind them and the applications for which they are best suited. Additionally, it is important to know the general characteristics of metal-cored wires, along with the ways they can provide potential improvements in the welding operation.
November 23, 2010
Selecting the appropriate hardfacing alloy can be an intimidating experience due to the variety of applications, service conditions, and base metals. Learning to ask the right questions will help you make the decision that best fits your application.
September 8, 2010
Welding chrome-moly tube and pipe conventionally is done with shielded metal arc welding (SMAW) or submerged arc welding (SAW). Flux-cored arc welding (FCAW) has been tried, but the wires had some drawbacks that prevented widespread acceptance. Recent developments have reduced some of these disadvantages, so GMAW deserves a fresh look. The switch might lead to improvements in the weld's characteristics or welding productivity.
May 4, 2010
The X-factor, also known as the Bruscato factor, is an important equation for anyone welding with chrome-moly steel. The equation will help you test your filler metals for levels of phosphorus, antimony, tin, and arsenic that could make a weldment susceptible to temper embrittlement.
March 1, 2010
All plasma systems use consumables that have an expected life. In high-use environments the cost of consumables can become considerable over time. Familiarizing yourself with what causes premature consumable wear and how to prevent it can help extend the life of your consumables, and in turn, cut down on the cost of continuous consumable replacement.
November 3, 2009
Progressive Pipeline Inc., Meridian, Miss., found that a new low-hydrogen vertical electrode made a real difference in a pipeline project the company worked on in 2008.
September 1, 2009
Alloys comprise 1 to 5 percent of a particular steels content and are added to provide the steel with a specific attribute. Knowing the type of low-alloy steel you have will help you to choose the right filler metal and achieve good weld quality.
May 18, 2009
FEMA, AWS, and AISC have all released documentation andspecification guidance for structural steel construction projects.Determining which to follow, however, can be a source of confusionfor architects, contract engineers, welding engineers, and weldingmanufacturers.