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Articles tagged with "gas"
Results: 49
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Using a hand-held plasma cutter: Exploring techniques for cutting, gouging, & maintenanceNeed to learn some techniques for cutting, piercing, and gouging with a hand-held plasma cutter? Read on for six steps to follow when cutting; information about gouging; and tips on maintenance.
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How to avoid the top 10 problems in plasma cutting: Practical tips you can use right nowAttention to detail at the outset can save plasma cutting operators a load of trouble during production.
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What to know before selecting a manual plasma cutter: Understanding size, power, components, costThe first plasma arc cutting (PAC) systems, developed in the '60s, were 1,000-amp monsters designed to blast through 6-inch stainless steel.
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Using plasma arc cutting to clean-cut stainless steel sheet and plate: Variables to considerTo clean-cut stainless steel sheet and plate, fabricators first must choose the right CNC cutting equipment and then set the correct process-related variables. Precise machine motion controls, torch-to-material distance control, and the correct plasma and assist gases all are crucial to producing weld-ready plasma-cut edges on all stainless steel thicknesses.
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Plasma pleases plentyTechnological developments in lasers are positioning them as an attractive alternative to plasma. But fabricators are still sticking with plasma cutting for many applications where speed and cost-effective operation are concerns.
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Exploring complementary cutting methods: Comparing capabilities of laser, plasma, EDM to waterjet technologyThe various cutting methods available to fabrication shops today can be both a little daunting and very beneficial. Choice is good--learn how to make the most of the diversity all your choices offer to you.
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Thermal spray safety and OSHA compliance: Protecting operators from ultraviolet light, fumes, dust, compressed air, gasesOSHA has regulations for both facets of thermal spray environment, and shops should be aware of some practical safety tips for how to comply with those regulations.
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Dressing for success and other welding safety tipsWhether we are attending a social occasion or dressing for the job, we all give some thought about what we are going to wear.
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Escape the 'Silent Killer': How proper protection can help prevent respiratory diseaseIt was just a 20-minute welding job in a basement boiler-room, but it left the plumber feeling lightheaded and nauseated and gave him a headache that lasted until the next morning.
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Sick at Work?All employees have days at work when they don't feel well. Usually these days are intermittent and can be attributed to a cold or other illness or job-related stress.
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Changing the way they do business: Bridge, structural fabricators have to think about process choicesDealing with work loads, delivery schedules, and many other responsibilities doesn't leave managers with much time to consider factors that justify equipment improvements.
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Resisting cracking, deformation, and premature wear: Powder metallurgical steels provide an alternative to conventional tool steelsWant to know how powder metallurgical tool steels are produced and how their properties provide the material's toughness and wear resistance? Read on.
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Selecting a pressure system for a stamping dieAuthor's Note: Before I begin, I would like to take this opportunity to express my sincere thanks to thefabricator.com's readers. I hope you have enjoyed the stamping articles, and I am excited about writing for 2004. I also would like to wish all of you a great holiday season as well as a prosperous and successful year. Best holiday wishes!Art
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Selecting a stamping die pressure system, Part II |
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Orbital welding for space program applications: Producing welds that withstand the rigors of deep spaceWelding applications in the aerospace industries demand high precision, a quality that can be entirely as low as possible. Automatic orbital welding is being used to help meet these requirements.
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Low-tech system mechanizes pipe welding: Backing device allows GMAW on open rootWelding technology has changed dramatically over the last few decades. Although skilled welders always will be needed in manufacturing, mechanical welding devices can provide improvements over manual welding in terms of repeatability and throughput.
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Making seamless tubing with a floating mandrel mill |
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Al GMAW: CC or CV?For about 40 years, a great debate in welding is whether to use constant-current or constant-voltage power supplies when using gas metal arc welding on aluminum. Constant-current power supplies made sense 30 years ago and are still used in some applications today, but for most applications, constant-voltage power supplies are suitable for gas metal arc welding aluminum.
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Choosing a GMAW machine for occasional aluminum welding |
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GMAW vs. FCAW for beginners: Choose the best process for your small operationThere are several pros and cons to using the gas metal arc welding process versus the flux cored arc welding process in compact applications.
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Considering the benefits of pulse spray transfer GMAW |
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Advantages of plasma welding: Often-overlooked PAW offers speed and affordabilityPlasma arc welding sometimes offers greater welding speed than gas tungsten arc welding at lower cost than laser beam welding.
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Gun Control: GTAW torch design innovations enhance productivity, qualityThis article discusses improvements to the GTAW torch that should enhance the productivity and quality of welding operations. It specifically discusses the welding gun's affect on ergonomics and cooling capacity.
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Remote GTAW of spent fuel canisters: How this process reduces operator exposure to radiationThis off-the-beaten-path article defines a remote GTAW process that allows weld operators to minimize their exposure to radiation when welding spent fuel canisters used to contain nuclear fuel.
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Examining the GTAW environment: Choosing the right electrode and booth for your applicationThe author outlines basic components of a welding booth suitable for GTAW, and offers possible solutions to a decline in availability of the thoriated tungsten used in a GTAW electrode. He also offers ideas for providing a clean air supply for the GTAW operator.
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Joining aluminum with GTAW: Advice for the noviceAluminum is a real challenge to weld, especially for beginners. A knowledge of the gas tungsten arc welding equipment that is available to do the job as well as required accessories, preparation tips, and proper techniques is a good thing to have before jumping in.
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The fundamentals of gas tungsten arc welding: Preparation, consumables, and equipment necessary for the processLearning the fundamentals of the GTAW process will increase the welder's ability to produce quality weldments. Knowing the correct consumables, equipment, and preweld preparation necessary will help the welder troubleshoot welding problems.
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Choosing the right oxyfuel gas and supply systemMixing oxygen with fuel gases for brazing, cutting, heating, and welding metal has been around since the early 1900s. Oxyfuel processes have remained in use over the years despite the introduction of other metal fabrication processes, such as arc welding, plasma cutting, and laser materials processing. Finding the most economical method for supplying oxyfuel gases requires a basic understanding of the process.
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Getting the best results in gas-shielded FCAW: Filler metals play a crucial role in the process |
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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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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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Designing for successful robotic arc welding automationFor a fabricator to enjoy the benefits afforded by a robotic welding system, the parts to be welded and the system itself must be designed properly.
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Robots and dials and knobs—oh my!: GMAW power sources have evolved over timeIn the late 1950s, the U.S. Navy wanted to find a way to join heavy aluminum structural sections used to fabricate motor torpedo boat hulls.
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Loading up on quality, productivity, safety: Skid steer manufacturer uses welding robots to meet customer requirements |
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Optimizing flow through robotic welding workcells: A 'Case' Study RevisitedRobotic welding systems can enhance a company's production and bottom line. However, using these systems requires careful thought and planning, building the right infrastructure, and achieving the right balance between robotic and manual operations. This article presents an overview of one company's successful implementation of robotic welding.
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Targeting gas cylinders to improve safety, reduce costs: One company's results with high-pressure, high-volume cylindersThis article tells the story of a specialty chemical company and how it handles cylinder-gas challenges.
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Shielding gas consumption efficiency-- Part I: Spend a penny, save a dollarInstalling a bulk delivery system in your welding shop is perhaps the best way to save money
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Don't be a hot dog with heating heads: Tips for safe useSome call them rosebuds, others call them multiflame heating heads, and a few call them heat sticks. No matter what you call torch attachments, this article is a frank discussion about these tools that use oxygen and a fuel gas to make a lot of heat quickly. When used properly, they can make quick work of many heating jobs.
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Which wire do you require?: How to select a gas-shielded welding electrodeAre you looking for ways to improve quality, raise productivity, and save costs in your current welding operations? If you haven't examined the various electrode choices, you could be missing an opportunity to take your production welding to the next level.
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Identifying the right cutting and welding tips: Understanding torch tip design and function |
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Selecting a shielding gas for joining stainless steel: The right choice is critical for success |
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Getting your assets in order: Choosing a gas delivery mode to improve efficiency |
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Site-based telemetry systems streamline gas supply |
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Simplifying shielding gas selection: How different gases and gas blends affect your welding application |
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Understanding weld discontinuities |
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Hot spots for U.S. metal fabricated exportsIncreased global competition for customers on their home turf has driven U.S. metal fabricators to throw their nets wider to international markets. With this in mind, fabricators should look at the lists of the countries purchasing the most U.S. metal fabricated tools, machinery, products, and partially assembled goods as a road map to export opportunities.
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The challenges of laser cutting: Overcoming some common obstaclesLasers can be used to process expensive alloys as well as traditional materials such as stainless steel. However, knowing the strengths and weaknesses of laser processing is the key to determining whether or not a laser is the right choice for cutting.
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Turning up the power: Using lasers to cut thick plateThe most common power levels ranged between 1,500 and 2,000 watts. However, a statistical survey conducted by the AMT Laser System Product Group indicates a steady increase during the last 12 months of installations for high-power 3,000- to 4,000-watt laser systems and a decline in sales of lasers with power levels less than 2,000 watts.
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Job shop reduces costs, improves laser's output: Laser regulator minimizes gas contaminationToday's job shop market is characterized by unrelenting competitive pressure for laser processing services. Job shops are expanding into niche services such as multiaxis laser processing and thick plate applications to differentiate themselves from their competitors. Others are performing additional services such as forming, welding, painting, and assembly to add value.
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