Content tagged with "group"
Results: 30
Article
June 8, 2004
Plasma pleases plenty
In case you missed it, check out this excerpt from the article "National research programs explore plate welding for shipbuilding" in the March 2004 issue of The FABRICATOR®: One project objective is to introduce laser cutting technology—which is already being used to cut sheet... Read more...
Article
March 11, 2004
Flying high with orbital welding
The first machines developed were large, upright, stationary systems that could be used only for workshop applications. These systems also had to make several rotations to complete a joint because only single-level power supplies were available. To make consistent welds, they had to make... Read more...
Article
February 12, 2004
Cutting through five myths about modern lasers
The following five myths about modern laser cutting machines can help the experienced user stay on top of the game and give the prospective laser user a few things to keep in mind. Myth 1: Automated laser cutting systems are too complicated, expensive, and big for small and medium-sized... Read more...
Article
January 29, 2004
Managing environmental risk in tube, pipe production
Editor's Note: This article is adapted from a presentation made at the TPJ Symposium, March 16-18, 2003, Scottsdale, Ariz. The U.S. Congress and the states have created a complex scheme of environmental rules and regulations with which tube and pipe producers must comply.... Read more...
Article
December 11, 2003
Finding and creating value in your stamping operation
Their focus on time requires that material flow smoothly through the production processes in concert with sales orders, raw materials, and purchased parts. It also requires smaller production batch sizes. Most important, these companies have learned that the greatest waste and excess... Read more...
Article
October 23, 2003
Tube Hydroforming Design Flexibility—Part IV
Editor's Note: This article is Part IV in a series about tube hydroforming design flexibility. Please read Part I , Part II , Part III , and Part V .
Material selection is a very important aspect of design flexibility when striving to fulfill part functionality requirements.... Read more...
Article
September 25, 2003
Choosing a GMAW machine for occasional aluminum welding
I want to buy a small gas metal arc welding (GMAW) machine, preferably one that runs from 120-V input power. Most of my welding will be steel, but I would like to weld aluminum occasionally. Can these machines really weld aluminum? I've heard a lot of different opinions. Some companies claim... Read more...
Article
September 25, 2003
The wrinkle-wiper for tube bends
Figure 1 Here's a quick quiz for you to take: What "wipes" the wrinkles from the bend in a tube and is one of the five pieces of tooling in a die set? If you guessed wiper die, you're right. A piece of tooling used to keep the inside bend of a tube from wrinkling, a wiper die... Read more...
Article
July 24, 2003
Welding aluminum with inverter-based power supplies
Direct Current All welding power supplies transform relatively high-voltage, low-current incoming power to lower-voltage, high-current welding output using a transformer. In the past the transformer operated directly from 50- or 60-hertz incoming alternating current (AC). At these... Read more...
Article
July 24, 2003
Article
July 10, 2003
Article
July 10, 2003
Article
June 26, 2003
Taking an integrated build approach to stamping tool tryout
North American tool buyers are pushing to lower tool costs by: Seeking foreign suppliers with low-cost structures resulting from low labor costs and government subsidies. Aggressively advancing math-based tools, particularly in engineering, to improve design quality and reduce die rework.... Read more...
Article
June 12, 2003
What's that material?
An XRF system can be integrated at a detector station before final packaging. The tubes are held in place by a pneumatic clamp while the XRF detector is raised to make contact with the tube and perform the measurement. This process confirms the alloy grade of the material typically in two... Read more...
Article
April 10, 2003
How to recognize, minimize weld smut
When I weld any aluminum alloy, I see a covering, light gray to black in color, over the weld. I see it when I gas tungsten arc weld (GTAW), but it's worse when I gas metal arc weld (GMAW). What is it? Does it affect the mechanical properties of the weld? How do I get rid of it? A common... Read more...
Article
April 10, 2003
Using narrow-gap GTAW for power-generation equipment
The new shroud was welded with narrow-gap GTAW. The groove in this shroud was open by 6 degrees and 0.28 in. (7 mm) wide at the parallel section. This process allows uniform welding with first-layer penetration in all positions. The wire feed and base metal fusion rates can be... Read more...
Article
March 28, 2002
Taking a look at performance appraisals
As our work lives continue to become more complex, many managers are looking for assistance in the ongoing effort to achieve results—often with fewer resources. In the middle of all this, it may be helpful to develop a simpler strategy when attempting to communicate your expectations to... Read more...
Article
November 29, 2001
Ensuring a plant's electrical system safety
Many people work in buildings that were constructed more than 40 years ago. At the time they were built, no one could have imagined the power requirements of the 21st century. An older plant has much more equipment today than it did when it was built, and each piece of equipment pulls... Read more...
Article
November 29, 2001
Mobilizing equipment-saving time and talent
Think about the increased production that would be possible if one operator could manage two machines simultaneously. You could make it work simply by varying access to different pieces of equipment as needed anywhere in your facility.
Of course, some machines on the shop floor cannot be... Read more...
Article
November 15, 2001
Adaptive bending
In conventional press brake bending, the bend angle obtained often differs from the programmed angle even though it is produced on a CNC machine. To overcome this problem, the bend angle can be measured during the forming process and this information fed to the numerical control. This process... Read more...
Article
November 15, 2001
Assessing cutting and forming machine tool safety
During the past decade increasingly comprehensive machine tool safety standards have been adopted in many countries, including the U.S. The expanded breadth of recent standards typically includes the entire life expectancy of machines, the full scope of possible risks, the frequency and severity... Read more...
Article
October 25, 2001
To e, or not to e?
To e, or not to e? And the answer is complex. Electronic commerce was heavily hyped in the past half decade. The auto industry, it was proclaimed, was headed for a transformation. Everything from procurement to vehicle and component design was going online. OEMs were aglow at the prospect of... Read more...
Article
October 25, 2001
Article
September 13, 2001
Selecting the right materials for roll forming—Part 2
Alloyed Steel In addition to carbon, large varieties of metallic and nonmetallic elements are used to achieve the desired mechanical properties and corrosion resistance. The most frequently used alloying elements are manganese, cobalt, chromium, copper, molybdenum, vanadium, nickel, zirconium,... Read more...
Article
September 4, 2001
Robotic arc welding gets smart in real time
Though robots probably are best-known for their ability to accomplish repetitive manufacturing tasks, it's no secret that, by themselves, they are unintelligent and must be told what to do. They are silent, unable to talk over problems with their controller, power sources, the robot in... Read more...
Article
August 16, 2001
In search of the perfect bend
Press brake manufacturers have made tremendous advances in the art of machine design and manufacturing. Machine frame components are designed to use proven mechanical engineering principles combined with CAD technology to identify the areas most susceptible to stresses consistent with the metal... Read more...
Article
July 26, 2001
Article
July 12, 2001
Turning up the power
Industry trends indicate that metal fabricators increasingly are selecting higher-power lasers for cutting applications. Two years ago, the 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... Read more...
Article
June 18, 2001
Big steel on the ropes
The story of the U.S. steel industry as of late reads a lot like the book of Job, whose misfortunes at the hands of the devil made his name synonymous with pain and suffering. Indeed, Chapter 11 might be an appropriate place to start reading, because that's where many of Big Steel's main... Read more...
Article
February 19, 2001
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