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Articles tagged with "arc welding"
Results: 70
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Heading off health hazards: Guidelines for working injury freeEach year more than 700,000 Americans injure their eyes at work equating to more than 2,000 eye injuries each day. About 90 percent of which could have been prevented if proper eye protection were used. Safe work practices, along with properly selected and worn PPE can help reduce many of these potential health hazards and help you to make sure you don't become a statistic.
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Where is the welding management?Skilled, responsible welders can be expected to perform tasks to which they are accustomed very well. But when a brand-new project comes in, management should be careful not to give welders responsibilities they are not prepared to take. They need more than encouragement and sympathy.
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Welders to the rescue: Job shop specializes in repairs, cargo containersArray
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Editorial Advisory Board Roundtable: The education of the fabricating industryThe FABRICATOR invited the members of its Editorial Advisory Board together to discuss the state of skilled labor in North America and what the future looks like for tomorrow's fabricating and forming employees and employers.
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Documenting welds from an orbital welding power supply: Capturing data electronically for quality assuranceWeld inspection, weld logging, and weld recordkeeping always have been a part of quality assurance (QA) procedures for certain industries, particularly aerospace, nuclear power, semiconductor, and pharmaceutical.
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Innovation rides the waves: Aluminum Chambered Boats incorporates welding into patented designAs aluminum becomes more and more readily available for various manufacturing applications, the boat-building industry is taking notice. To build its patented vessel design, Aluminum Chambered Boats has found that arc welding - both GMAW and GTAW - is a critical technology.
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These aren't your grandparents' wheelchairs: Forget about transportation—these chairs are built for combatVesco Metal Craft, a manufacturer of rugby wheelchairs, makes specialized wheelchairs from 6061 seamless aluminum tubing. This violent, collision-oriented sport causes cracks in the welds' heat-affected zone, so the company sought better manufacturing methods. It added heat-treating to its process and switched to an inverter-based welding unit that gives the company's welders advanced waveform control.
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SMAW revisited—You can never know too muchNo matter how much you know about SMAW or any other type of welding, you always can learn more.
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Advanced variable-polarity plasma arc welding: Using the process for welding aluminum tailor-welded blanksThis article examines variable-plasma arc welding and its uses in the welding of tailor-welded blanks.
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How to Improve Your Welds: Helpful hints for GMAWA guide to the gas metal arc welding (GMAW) process. The benefits of the process include its high deposition rate, efficient use of filler matel, elimination of slag and flux removal, and the reduction of smoke and fumes.
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Set loose the juice: Electronics change how power gets to the gunAs in other facets of welding equipment technology, arc welding power sources are evolving as fabricators' needs change. Electronics is playing a large role in power source modernization as power source equipmentmakers begin to employ digital interfacing, Internet access, software control, and other innovations to these machines.
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Selecting a GTAW power source: Factors to considerThe author is an end-user of power sources who shares his knowledge of how to pick a GTAW power source for an application. He considers the application, materials to be welded, power requirements, usage, time constraints, and additional capacity.
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SMAW Basics—How much do you know? |
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Efficient use of compressed gases can increase productivity: Part I. Overview of compressed gases used in the metal fabrication industryThe metal fabrication industry has used compressed gases for more than one hundred years. Oxy-fuel cutting and welding have existed since the beginning of the 20th century. The more automatic welding processes, such as gas metal arc welding (GMAW) and gas tungsten arc welding (GTAW), began as early as 1920.
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Shipyard uses laser-GMAW hybrid welding to achieve one-sided welding: New system “reforms” prefabrication in shipbuildingThe Jos. L. Meyer GmbH shipyard in Papenburg, Germany, built its first wooden sailing ship in 1795. Today the six-generation, family-owned shipbuilding company designs and builds large metal cruise liners, gas tankers, and ferryboats. These floating behemoths can be as large as 162.5 by 975 feet (50 by 300 meters), and 162.5 ft. (50 m) high.
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MIG welding—The basics and then someWhether it's used in the shop, field, or the garage hobby shop, MIG is a great process.
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10 frequently asked GTAW questions: Answers and explanations for precision welding |
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Elements of success:: How air and water cooling may affect which equipment you purchaseTorches, cables, and cooling are three integral components in gas metal arc welding (GMAW) and gas tungsten arc welding (GTAW) equipment, and two cooling methods – air and water – are used in their cooling systems. Although GMAW and GTAW are different processes, the advantages and disadvantages of water- and air-cooled systems are the same. For that reason, you should consider similar factors when choosing a GMAW or GTAW system.
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Hanging it upIn his farewell article for thefabricator.com, reader-favorite author and welding instructor Marty Rice reflects on his life, his welding career, writing for the Web site, and his appreciation for the readers who have contacted him throughout the years. He also expresses his view about the decline of welding training programs.
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Head of her class: Female state welding champion ponders her futureAt a time when it's becoming more and more difficult to find skilled workers, it's encouraging to read about people like 18-year-old Jessica Jelinski who are studying and pursuing careers in metalworking. Jelinski is putting her welding training to good use winning competitions and working on interesting projects.
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Starting a portable GTAW business: ArrayArray
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Arc welding discontinuitiesWelding discontinuities can affect product performance and longevity. Thoroughly understanding the various defects, their causes, severity, and remedies can help ensure high-quality and superior performance. This article presents an overview of welding defects and discusses design strategies to help prevent them.
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Joining GMAW and GTAW: Hybrid welding takes on a whole new meaning with new technology developmentsOne form of hybrid welding combines both GMAW with a GTAW process in a welding torch. An electronic interface unit containing a plasma power supply controls the hybrid process. Research has indicated that such an approach to welding leads to faster welding times, deep penetration, and cleaner welds when compared with conventional GMAW technology.
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Arc Welding 101: ArrayI am building a 400-gallon paint tank and I'm having trouble with leaks when using gas metal arc welding (GMAW).
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Welding shop economicsThe prices of materials consumed in your welding shop aren't the only materials-related economic considerations. How you use those materials affects the bottom line. Monitoring compressed-gas usage and looking for areas of waste can improve your shop's financial picture. This article offers practical suggestions for reducing waste.
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Let 'er rip: College students learn real-world skills in vehicle fabrication competitionBob Hollingsworth, a member of Practical Welding Today's advisory board, details the journey of the 2006 Western Washington University Mini Baja vehicle fabrication team and their quest to build a winning off-road, student-designed racing machine.
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Stuck on SMAW?: Easy answers to 8 common electrode questionsUsing SMAW can be just as complicated for the hobbyist as it is for the professional welder. Answering common questions about electrode classification, capability, and how each differs from one another can help ensure success.
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Extreme weld makeover: Fabricator rebuilds company and welding operationsA Memphis, Tenn., custom fabricator completed the redesign of its welding operations by purchasing and integrating new welding equipment and software to help increase productivity and to diversify its capabilities.
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Fabricator finds new opportunities in energy sector: Green applications for advanced pulsed GMAW |
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Great welds need the right gasUsing an inappropriate gas mixture and consumables for a particular GMAW application can cause porosity and excessive spatter, factors that diminish weld quality. Which gases work best with which materials? Why is nozzle selection important? This article addresses these and other questions about GMAW gas and consumables.
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No hay nada más sano que una bocanada de aire fresco: Cómo controlar los riesgos para la salud por vapores de soldaduraAlgunos riesgos para la salud relacionados con soldar, especialmente la soldadura por arco, son obvios. Por ejemplo, un soldador sabe que no debe ver el arco. Este artculo ayudar a los soldadores a reconocer y a controlar los riesgos para la salud relacionados con los vapores de soldadura.
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Orbital welding of stainless steel pipe for water systems: Productivity and quality improved over manual weldingNeeding to provide a product line with standard, repeatable, and interchangeable components, American Water Technology, a manufacturer of water treatment systems, integrated stainless steel tubing and orbital welding.
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Ensure good feeding with FCAW electrodes |
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The whats, whys, and whens of GTAWMore difficult to learn than some welding processes, gas tungsten arc welding (GTAW) can be used to weld a greater range of materials than most other processes. This article explains GTAW, examines its advantages and disadvantages, describes appropriate and inappropriate applications, and discusses how important cleanliness is in GTAW
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Holding up under 'pier' pressure: Metal pier manufacturer banks on durability, service to stay afloatA manufacturer and installer of steel docks in Ontario, Canada, purchased new welding equipment that gave the company increased reliability in adverse weather conditions.
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Start with the basics: Understanding flux-cored wiresArming yourself with basic information about flux-cored wires can help you decide if these consumables are right for your welding application. Available in gas-shielded and self-shielded, flux-cored wires require less skill to use than other filler metals and commonly are used for general fabrication, pressure vessels, petrochemical piping, and heavy-equipment manufacturing
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Why in the heck would you want to weld?Two years ago, welding expert and reader-favorite author Marty Rice took a hiatus from writing for thefabricator.com. Marty has returned, and in this, his first article for 2008, he discusses why he welds and offers insights that may help others decide if welding is a viable career choice.
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GMAW 101: Setting the correct parametersAre you producing quality weld beads? If not, perhaps your parameters need tweaking. This article presents guidelines that can help you identify which parameters to adjust and how to adjust them. It also offers a good buddy-system tip for achieving correct settings.
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Go! Brennan: Putting the pedal to the metal and taking the metal to the classroomWho can inspire a young person to pursue a welding career better than a peer who welds? How about a peer who also is a stock car driver? Racer and welder Brennan Palmiter has teamed up with the Fabricators & Manufacturers Association (FMA) Foundation and Practical Welding Today® magazine to introduce more young people to manufacturing careers.
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Virtually welding: Training in a virtual environment gives welding students a leg upToday several companies offer technologies that help beginning welders get that hand motion just right. None claims that the technology will replace the real thing, of course, but they do say that training in the virtual world can give students a significant leg up by the time they weld for the first time. It helps teach students what really happens between the welding arc and workpiece, why certain hand motions produce good beads while other motions don't. And it also may help introduce welding to students who wouldn't have given the trade a second thought.
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Learning TIGThink you want to learn TIG welding, also known as GTAW? To master the craft and avoid injury, it's imperative that you receive proper instruction. TIG is not a process that lends itself to self-teaching. This overview compares TIG with other welding processes and outlines some important steps of the process.
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What do companies want from their workers?In his extensive career as a welder and welding instructor, Marty Rice has learned a thing or two about the qualities companies look for in their employees beyond skill proficiency. This anecdotal article discusses these qualities and their importance from Rice's perspective.
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See Brennan go: 16-year-old finds passion is racing and weldingBrennan Palmiter may look like an ordinary teenager, but behind the youthful grin is an incredibly driven16-year-old who has his sights set on a career in racing and welding.
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Troubleshooting welding conductivityWhen MIG welding, are you experiencing an erratic, sputtering arc; a gradual need to increase voltage at the power source; discoloration of copper cable strands or the liner; increased contact tip burnbacks; or inconsistent weld appearance? If so, your problem could be poor conductivity caused by electrical resistance.
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20,000 welds under the sea: Maintaining and repairing the world's largest shipsA Florida company specializing in underwater inspection, maintenance, and repair of deep sea vessels needs reliable, safe, and portable equipment to ensure that the job can be done anywhere in the world.
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Becoming the best danged welder on the block"Welder wanted" signs abound in many areas of the U.S., and welding instructor Marty Rice believes there's never been a better time to pursue a welding career. How do you make your welding career the best it can be? Following certain guidelines can help.
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Submerged arc welding : then and now: It's not your father's sub-arc process |
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TIG for titanium tubing: Success hinges on filler metal selection, cleanness, gas coverageAlthough titanium has a reputation for being difficult to weld, it doesn't have to be problematic. Paying close attention to filler metal selection, cleanness, and use of the shielding gas are three steps to successful GTAW on titanium tube and pipe.
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GTAW common joint designsUnderstanding common gas tungsten arc weld (GTAW) joints, knowing when to use them, and mastering the proper method for each can help you achieve better welds. This article focuses on butt, corner, and T joints and discusses considerations such as material type and thickness.
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Think females can't weld? Think againDuring World War II, many females filled work force roles in traditionally male occupations. After the war, most left these jobs, but that doesn't mean women are any less able to fill them. Experience has taught welding instructor Marty Rice that females make danged good welders.
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Focus, passion, integrity: Winners of Be True To Your School contest get visit from Palmiter, race carBe True To Your School winner Lebanon Technology & Career Center gets visit from 17-year-old welding and racing phenom Brennan Palmiter.
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Learn your trade, pay your dues: Advice for new weldersWelding jobs may not be as plentiful as they once were, but welding instructor Marty Rice believes a lot of welding work is "waiting to bust loose once the economy straightens out, and there's always work in welding, if you're willing to pack a suitcase." Rice has some advice for those embarking on a welding journey.
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A streetcar to desire [again]: Welder/fabricator gets century-old trolleys back on trackWelder/fabricator Bernie Bisnette takes the corroded, worn-down,and skeletal remains of trolley cars and restores them to their originalappearance for the Seashore Trolley Museum, Kennebunkport, Maine.
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SMAW: A welder's guide: Advice and troubleshooting tips for beginnersArray
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Newbie mistakes made, experience gainedAll welders are newbies at some time in their careers. Following Marty Rice's advice for newbies can help you with more than your welding career. Learn from the man who's been there, done that, and has the scars to prove it.
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Common technical mistakes new welders make and how to avoid themDid you hear the one about the welder who was tired of bending over to weld and made the fatal mistake of using a 55-gallon drum as a welding table? In this article, welding instructor Marty Rice discusses this mistake and describes some common technical mistakes new welders make, some more serious than others. All can be avoided.
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Starting a portable GTAW business Part II: Know your customers: Part II: Know your customersThinking about starting your own portable GTAW business? This installment in a series about this topic focuses on the potential customer base and the welding repair needs of specific segments. It also offers pricing tips for various jobs.
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Starting a portable GTAW business Part III: Dos and Don'ts: Part III: Dos and Don'tsThis article is part of a four-part series about establishing a portable GTAW business. It covers the dos and don'ts of business practices, safety, and welding, and includes tips that can help you retain customers and grow your business. Following these practical guidelines can help your business succeed.
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Starting a portable GTAW business Part IV: Stainless steel, aluminum tips: Part IV: Stainless steel, aluminum tipsThis article, the last of a four-part series about establishing a portable GTAW business, covers helpful tips for working with stainless steel and aluminum, including weld prep and the proper welding techniques. It also offers advice about hiring help and purchasing liability insurance for your business.
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Arc Welding 101 - Paint tank troubles: Paint tank troublesI am building a 400-gallon paint tank and I'm having trouble with leaks when using gas metal arc welding (GMAW).
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Tons of reasons for a new welding positioner: A new positioning table is helping P&H Mining Equipment keep up with its large fabricationsP&H Mining equipment, Milwaukee, Wis., makes very large equipment, such as its largest electric shovel that weighs 1,200 tons. Shovel components keep getting larger, and to keep up with the market trends, the company needed a new welding positioner. That's a "big" deal in every sense of the word. Luckily, Koike Aronson Inc./Ransome was able to help.
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SMAW: A welder's guide - Advice and troubleshooting tips for beginnersShielded metal arc welding (SMAW) is the most common form of arc welding. However, creating a good weld is not always easy, especially for a beginner. Following a few simple tips as well as learning the common weld defect and how to fix them will have you on your way to laying quality SMAW welds.
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Magical, mystical metal: The art of Richard WilsonRichard Wilson's metal art reflects his appreciation for metal's lesser-known intrinsic qualities. This article explains how Wilson became a welder and metal artist and describes the materials and processes he uses. It details one project from start to finish. It also offers insight into the future of the welding labor force from Wilson's perspective as a welding instructor and manufacturing consultant.
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Eagles, dragons: Stainless steel takes on many forms: Artist uses GTAW to create 'shock and awe' artMetal fabricator Kevin Stone uses gas tungsten arc welding (GTAW) to sculpt massive pieces of art from stainless steel. Read about Stone's creative and technical processes and discover important tips that can improve your stainless steel welding.
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How to keep automated welding from going around in circles: Laser-based seam tracking proves to be the answer at A.O. Smith's American Water Heater Div. facilityThe move from manual welding to some form of machine or automated welding has been going on in all industries--including water heater manufacturing--for years. It's part of a desire to improve productivity and quality. A.O. Smith's American Water Heater Div. in Johnson City, Tenn., learned that first-hand.
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Analyze your arc welding cost |
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Keeping welding costs from spiraling out of control: Skyline Steel sees laser seam tracking as the answerSkyline Steel, a subsidiary of ArcelorMittal, recognized in 2001 that for it to win contracts for high-end projects requiring high-pressure and high-strength steel spiral pipe, it would need to become more competitive in price. That's why the company turned to Servo-Robot Corp. and its AUTO-TRAC laser vision seam tracking for pipe welding.
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Do your welds pass muster?: Evaluating gas and equipment to deliver quality and performanceFor 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.
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Don't forget the fixturing: Consistent fixturing ensures consistent robotic weldingDon't forget a component of the system sometimes can dictatewhether a robotic welding integration succeeds or fails: the fixturing.
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Pipe fabricator saves big time with big bends: 4 lessons to learn from Universal Pipe and Steel Supply and its four-roll benderUniversal Pipe and Steel Supply, Fort Myers, Fla., needed a roll bender with greater capacity to capitalize on the market for larger pipe sections. The company found its answer with a four-roll bender from Bertsch.
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