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.
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.
May 15, 2009
The good news about a worldwide recession is that steel prices are back down from their record highs of 2008. The Producer Price Index for hot-rolled bars, plates, and structural shapes, which includes a lot of bridge steel, dropped 7.5 percent from February 2008 to February 2009."The extreme...
March 24, 2009
Q: I am confused about the various specifications for seismic applications. How can I know if I have the right filler metal for the job?A: Your confusion is understandable. The documents overseeing seismic applications are ongoing and constantly revised. To fully understand this issue, we need to...