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Articles tagged with "heat"

Results: 35

	Cutting exotic alloys: Circular saw helps shop land aircraft tubing project By: John Manchester, Contributing Writer Cutting tubing with a circular cutoff saw is a common metal fabrication operation. This type of saw can produce a smooth finish that requires little secondary finishing. Publish date: April 24, 2003 Tech cell: Sawing
	Choosing the right coated abrasive for plate finishing applications: A look at grain properties By: Mark Boudreau and Dave Jacoby, Contributing Writers Most plate fabricating companies need to select a coated abrasive to finish their parts. This selection process can be intimidating, as well as confusing, because so many types of coated abrasives are available. Publish date: January 29, 2004 Tech cell: Finishing
	Considering thermal processes for dissimilar metals: Joining steel to aluminum in heat-intensive applications By: Jürgen Bruckner, Contributing Writer Knowing how to weld dissimilar metals is becoming more and more important. One reason is that it's often impossible for one material to provide the optimum chemical, physical, and mechanical characteristics needed for an application. For this reason, as well as cost efficiency, technology specialists are experimenting with different joining processes to weld bimetal joints optimally. Publish date: August 28, 2003 Tech cell: Metals/Materials
	Carbon content, steel classifications, and alloy steels By: Bob Capudean, Contributing Writer Steel classification is important in understanding what types are used in certain applications and which are used for others. For example, most commercial steels are classified into one of three groups: plain carbon, low-alloy, and high-alloy. Steel classification systems are set up and updated frequently for this type of information. Publish date: August 28, 2003 Tech cell: Metals/Materials
	Combating plate corrosion: Improving corrosion resistance through welding, fabrication methods By: Hira Ahluwalia, Ph.D., Contributing Writer Publish date: October 9, 2003 Tech cell: Metals/Materials
	Making steels stronger By: Bob Capudean, Contributing Writer When it comes to modifying a steel's strength and hardness, it's important to not confuse hardness with hardenability and remember that hardenability characteristics are important because they help identify how much a specific steel will harden during welding. Publish date: October 9, 2003 Tech cell: Metals/Materials
	Welding's effect on strengthening steel By: Bob Capudean, Contributing Writer Welding can severely influence strengthened or hardened metals, depending on the hardening technique used. Because of this, post-weld heat treatment is often very helpful in maintaining weld joint strength because it softens or tempers any martensite or bainite that formed in the HAZ. Publish date: December 11, 2003 Tech cell: Metals/Materials
	Keeping pace with today's punching requirements: Advancements in tool design, metallurgy lead to more accurate holes, improved part quality By: Frank Baeumler, Contributing Writer This article provides the basics on how the punch, die, and stripper work; how to perform material thickness calculations on various materials; how different applications affect punching quality; how fully guided tooling counters lateral forces; and how metallurgy, coatings, and maintenance affect tooling. Publish date: December 13, 2001 Tech cell: Punching
	Selecting the right materials for roll forming—Part 2: How mechanical properties affect production By: George Halmos, Contributing Writer This is the second part of a two-part article. Read Part I. If you examine the mechanical properties of several materials, including carbon steel, alloyed steel, stainless steel, as they relate to roll forming, you'll gain an understanding of the influence of some primary metal processes on roll forming. Publish date: September 13, 2001 Tech cell: Roll Forming
	When sparks fly ... By: Kathie Leonard, Contributing Writer This article combines examples of fires caused by inadequate protection from welding with information on heat-resistant textiles and how they can be used to provide that protection. Publish date: December 13, 2001 Tech cell: Safety
	One system does not fit all: Ventilation equipment becomes more specific to improve the welding environment By: Stephanie Vaughan, Contributing Writer Ventilation systems come in a variety of types for different types of welding processes and varying fabrication facility setups. The emphasis on proper application of these systems and best use of the components used in them comes from an increased interest in cleaner air for the welder. Publish date: January 13, 2004 Tech cell: Safety
	Respirator selection as a business decision: How to choose the right equipment for your welders By: Clifford Frey, Contributing Writer Several technical articles have addressed respiratory diseases associated with welding activities and when a respirator should be used to help prevent these diseases. Once an employer concludes that respiratory protection is the appropriate option for a particular application, the next step is selecting the right respirator. Publish date: January 29, 2004 Tech cell: Safety
	It's the small things: Addressing areas that might be overlooked in safety programs By: Kelly Langdon, Contributing Writer Many times industrial safety programs focus solely on safe equipment operation and other obvious hazards while ignoring simpler concerns. Addressing these concerns can make an important difference in worker safety, morale, and productivity. This article provides examples of common concerns and how you might address them. Publish date: June 26, 2007 Tech cell: Safety
	Keep it clean: Selecting the right waste treatment option By: John Burke, Contributing Writer Are you having problems with wastewater discharges from your metalworking facility? Have you received a violation notice from your sewer use authority? Do your environmental experts speak a language you don't understand or continually reject new fluids you would like to use? Or perhaps you would like to use new or improved lubricants, cleaners, rust preventives, or detergents, but the products you've tried have failed the waste treatment tests. Publish date: August 14, 2003 Tech cell: For Engineers
	Exploring upgrades in stamping presses: The top 10 improvements in the past 50 years By: Bob Kotynski, Contributing Writer The years have brought a host of improvements to stamping presses as technology has made presses more efficient, safer, and easier to use. Publish date: April 24, 2001 Tech cell: Press Technology
	Sharpening for a longer life: Maintaining the cutting edge on punch and die components By: Nick Tarkany, Contributing Writer Routine maintenance—grinding, using surface treatments, sharpening ejector pins, and minimizing potential grinding damage—can extend tool life and save you a lot of headaches. Publish date: August 16, 2001 Tech cell: Tool and Die
	Cutting die-related costs: Where to look to save money By: Michael Korneli, Contributing Writer Demands for cheaper, better, and faster tooling for stampings and the pace of business continue to escalate. This trend is not going to reverse itself. Publish date: February 19, 2001 Tech cell: Tool and Die
	Tooling tricks of the trade: A few tips for extending die life By: Steve Chamberlain and Rodney Hewitt, Contributing Writers Publish date: June 26, 2003 Tech cell: Tool and Die
	Low-tech system mechanizes pipe welding: Backing device allows GMAW on open root By: Helmut Hahn, Contributing Writer Welding 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. Publish date: March 11, 2004 Tech cell: Tube and Pipe Fabrication
	Flying high with orbital welding: Equipment, applications, and joint designs for aerospace components By: Steve Purnell, Contributing Writer Orbital welding first was developed in the late 1960s by a group of engineers from McDonnell Douglas to join aerospace tubes. These engineers were aware of the problems associated with producing repeatable welds for their critical applications. Publish date: March 11, 2004 Tech cell: Tube and Pipe Fabrication
	Laser welding of stainless pressure tubes By: Frank Fenton, Contributing Writer Not all laser welded tubes are created equal. Know what to look for in the final product to ensure that you're buying quality and not just an imposter. Publish date: July 12, 2001 Tech cell: Tube and Pipe Production
	Welding aluminum with inverter-based power supplies By: Frank Armao, Contributing Writer It's easy to look at such a long-established technology as welding and believe that little or no technology development is taking place. In truth, however, the capabilities of welding power supplies are changing constantly and rapidly, especially in the area of inverter technology. These power supplies are suitable for welding aluminum alloys, including thin aluminum alloys. Publish date: July 24, 2003 Tech cell: Aluminum Welding
	Considering the benefits of pulse spray transfer GMAW By: Paul Niskala, Contributing Writer Publish date: October 25, 2002 Tech cell: Arc Welding
	Secrets of Using GTAW for Tools and Dies: One retired fabricator share the basics of how he added this services to his shop By: Earl Durfee, Contributing Writer Tool and die welding can be a very lucrative service for a fab shop. However, tool and die welders are about as rare as brain surgeons because of a general lack of knowledge about the process and because of the extra expense it brings to a shop. This article offers a basic understanding of what's needed to add this service to your fab shop. Publish date: November 17, 2002 Tech cell: Arc Welding
	Gun Control: GTAW torch design innovations enhance productivity, quality By: Harshad Shah, Contributing Writer This 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. Publish date: November 15, 2001 Tech cell: Arc Welding
	Getting the best results in gas-shielded FCAW: Filler metals play a crucial role in the process By: Tex Ikeda and David Haynie, Contributing Writers Publish date: December 11, 2003 Tech cell: Arc Welding
	Designing for successful robotic arc welding automation By: Dan Crowe, Contributing Writer For 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. Publish date: February 19, 2001 Tech cell: Automation and Robotics
	Identifying the right cutting and welding tips: Understanding torch tip design and function By: John Uccellini, Contributing Writer Publish date: October 9, 2003 Tech cell: Consumables
	Selecting the right tungsten: How your choice affects AC GTAW By: Brent Williams, Contributing Writer Most welders used to agree that a pure tungsten electrode was crucial to obtaining the best results for gas tungsten arc welding (GTAW) aluminum, magnesium, and other alloys that required an AC arc. Publish date: February 26, 2004 Tech cell: Consumables
	Welders turn to induction heating for preheating, stress relieving By: Mike Roth, Contributing Writer This article discusses using induction heating for preheating and (postheating) stress relief of welds. It focuses on what this technology is, how it works, and how it can be used in an industrial setting. This article also gives several real-life examples of how the technology has been used in actual applications. Publish date: November 15, 2001 Tech cell: Cutting and Weld Prep
	Four factors to consider when purchasing a grinder: You get what you pay for By: David Smith, Contributing Writer Cost often is a deciding factor when you purchase a grinder. However, the saying "you get what you pay for" can be true when you're talking about tools. The price tag alone doesn't always reflect some of the more important factors--performance level, cost to operate, and tool life--that make a grinder worth its cost. Publish date: July 26, 2001 Tech cell: Cutting and Weld Prep
	Selecting the right abrasives for your operation By: Richard Lawson, Contributing Writer When it comes to weld preparation, choosing the right abrasive wheel for your grinder can make your job easier. Just grabbing your grinder and cleaning up the weld area can result in poorly prepared joints, cross-contaminated welds, and more wear and tear on the tool and the operator. Publish date: August 14, 2003 Tech cell: Cutting and Weld Prep
	Repair Brazing: Fixing Faulty Jobs and worn-out components By: W. Daniel Kay, Contributing Writer Brazing has myriad uses for shop repairs. Knowing what seperates a proper brazing job from a poop one can save you alot of headaches and produce some slick results in the process. Publish date: July 26, 2002 Tech cell: Repair and Field Welding
	The challenges of laser cutting: Overcoming some common obstacles By: Jim Wollenberger, Contributing Writer Lasers 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. Publish date: March 13, 2002 Tech cell: Laser Cutting
	Predicting the outcomes of laser thermal forming: How process simulation brought this technology to industry By: Jerry E. Jones, Michael Mossman, and Valerie Rhoades, Contributing Writers Publish date: April 24, 2001 Tech cell: Laser Cutting