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Articles tagged with "gases"

Results: 11

	The life and times of plasma cutting: How the technology got where it is today By: Thierry Renault and Nakhleh Hussary Plasma cutting has become a process of choice for many because of its cost-effectiveness. However, this wasn't the case when the technology was introduced because of short consumable life. Technological innovations over the years, however, helped to change that. Publish date: November 6, 2007 Tech cell: Plasma Cutting
	Don't rule out plasma for cutting aluminum: Clearing up the misconceptions By: Michael Bishop, Contributing Writer In any discussion about how to cut metal, plasma cutting is right up there with laser and waterjet. The technology gets a bad rap, though, when the discussion turns to cutting aluminum. There are five preconceptions that many fabricators have about turning to plasma to cut aluminum. But according to three experts, new plasma cutting systems produce good results on aluminum. Publish date: January 27, 2009 Tech cell: Plasma Cutting
	Don't let your health go up in smoke: Learn about and prevent the effects of welding fumes By: Clifford Frey Although the health effects of welding exposures often are difficult to predict, components of welding fumes have a range of toxicities that, under the right conditions, can affect many parts of the body adversely. Knowing what situations and welding process components can negatively impact your health is the first step toward learning how to protect yourself from those health hazards. Publish date: October 11, 2005 Tech cell: Safety
	Preventing torch fires in welding and cutting operations: Following five safety tips can reduce hot-work dangers By: Michael Bishop, Contributing Writer Welding and cutting, which accounts for 1 percent of structure fires and 4 percent of nonhousehold property damage, is the most dangerous type of hot work, according to the National Fire Protection Association (NFPA). Companies that weld and cut should take specific steps to increase safety and minimize the risk of torch fires. Hot work, by its nature, has a lot of hazards. Companies and their hot-work operators can protect their safety and their facilities by keeping combustibles away from welding and cutting operations; using new safety features; staying aware of conditions; and knowing and following instructions provided on the precautionary labels and in OSHA, ANSI, and NFPA standards. Publish date: July 15, 2008 Tech cell: Safety
	Getting the SPA treatment: Using safety and performance audits to improve gas welding and fabricating Array Publish date: September 1, 2009 Tech cell: Shop Strategies
	Resolving the challenges of welding coated steels: How wire and shielding gas choices affect quality and productivity By: Kevin A. Lyttle, Contributing Writer The increased use of coated steels has resulted in an intensified search for solutions to the problems posed by joining these materials. High levels of spatter and welding fume, weld porosity, and poor bead shape are common. These problems lead to increased post-weld cleaning costs, reduced quality, greater rework, and an overall reduction in productivity. The right wire size and type, matched with the most appropriate shielding gas, can substantially improve gas metal arc welding (GMAW) performance on galvanized and coated steels. Publish date: September 13, 2005 Tech cell: Arc Welding
	7 effects of shielding gas: Blend composition makes a difference By: Garth Stapon and Kevin Lyttle, contributing writers Depending on your application, various components of your shielding gas blend can help or hurt you. Find out what effects shielding gas has on your weld and what you can do to get the best results. Publish date: January 9, 2007 Tech cell: Arc Welding
	Who you gonna call?: Tips for choosing a welding and gases distributor By: Steve Beckman Shopping around for a welding gases distributor involves several key issues critical to a successful long-term business-distributor relationship. Publish date: January 10, 2006 Tech cell: Consumables
	Do your welds pass muster?: Evaluating gas and equipment to deliver quality and performance By: Richard Green For a job shop or manufacturer, maintaining weld quality begins with consistent shielding gas in the gas metal arc welding (GMAW) process. Consistently delivering the correct blend ensures proper arc characteristics and weld quality. Mixing technology, supply gas density, and gas usage patterns can affect the on-site gas blending system's ability to deliver a consistent blend. Publish date: November 25, 2008 Tech cell: Consumables
	The importance of lasing gas purity: How to minimize impurities By: Jeremy Barr, Contributing Writer Here's some food for thought on lasing gases: How are they created? What are their potential impurities? Which impurities and how much of them are of concern? What lasing gases should be used? How do you protect yoiur high-quality lasing gases from contamination? Giving these items some attention could save you some trouble down the road. Publish date: February 14, 2002 Tech cell: Laser Cutting
	High-powered lasers take a bite out of plate: How wattage, mode, and assist gas work together By: Jason Hillenbrand CO2 lasers are available in wattages that can cut plate more than 1 in. thick. The wattage, however, isn't the only factor that affects total speed and power. The assist gas chosen and the mode of the laser also influence final results. Publish date: December 12, 2006 Tech cell: Laser Cutting