Content tagged with "tube-bending"
Results: 22
Spanish
November 16, 2009
Doblando tubos no redondos
Aunque la redonda es la forma más común de tubo, abundan las oportunidades de tubos no redondos. Los tubos cuadrados y rectangulares, los cuales tienen más resistencia comparados con el tubo redondo, se usan comúnmente en aplicaciones arquitectónicas y estructurales. Los chasises... Read more...
Article
August 1, 2009
Bending nonround tubing
Although round is the most common tube shape, opportunities abound for nonround tubing. Square and rectangular tubes, which have more strength compared with round tube, commonly are used in architectural and structural applications. Automotive frames and furniture also are good candidates... Read more...
Article
September 16, 2008
Reflections on a perfectly symmetric ellipse
While many of BR Sculpture's projects involve casting, the company does quite a bit of fabrication work too. Like any fabricator, BR's owner, Brett Richards, occasionally is stumped by a daunting manufacturing problem such as this one-forming a perfectly symmetric frame for a mirror. A... Read more...
Article
June 15, 2008
Top 10 misconceptions about automation
The new norm is a larger-than-ever variety of high-quality parts in smaller-than-ever lot sizes-requiring frequent changeovers-with zero defects. Automation accommodates the new norm. Frequent changeovers, not volume, may be the motivation to consider automating your system. Consistency and... Read more...
Article
May 13, 2008
Custom or standard?
Contrary to a popular misconception, the output of durable goods in the U.S. has been on an upward trend for decades. This growth is interrupted by intermittent, short-term slowdowns, of course, but the fact is that the U.S. continues to be a productive nation, and its output continues to... Read more...
Article
March 11, 2008
Setup or cover-up?
Even though we are in the age of CNC machinery, the old phrase "the tools make the bend" is as relevant today as ever. As tube bending applications have become more ex-treme, tooling design, setup, and maintenance have returned to a position of central importance. In rotary draw bending, four... Read more...
Article
October 9, 2007
Fabricating: Employment or enjoyment?
He has a big, booming voice that matches his stature, a New Jersey accent, and a passion for motorcycles. No, you won't see him on television, he isn't Paul Teutul Sr., and he has nothing to do with Orange County. But he loves choppers. He has modified quite a few motorcycles over the... Read more...
Article
July 10, 2007
Top five questions about anodizing architectural tube
During anodizing, the aluminum oxide layer is made thicker by passing a direct current through a sulfuric acid solution, with the tube serving as the anode, the negative electrode. The current releases hydrogen at the cathode, the positive electrode, and oxygen at the surface of the aluminum... Read more...
Article
June 12, 2007
Bend process monitoring—small changes lead to big results
In many advanced fabrication shops, tube bending is a highly automated process that uses robotic and CNC bending machines to produce high volumes of complex tubes, each one formed to precise specifications. Robotic, automated operations are fascinating to watch as the steel tube... Read more...
Article
May 8, 2007
All-electric tube benders in control
New developments in all-electric tube bending technology have been in the areas of report generation and diagnostics. The PC controller with networking makes it possible to introduce many interesting diagnostics capabilities, such as a Web cam and a "black box" history file that automatically... Read more...
Article
April 10, 2007
High-speed cutting, end-finishing
Tube fabricator Leading Edge Hydraulics, Rockford, Ill., supplies hydraulic tube components to the off-road and construction industry segment. The family business grew rapidly since its decision in 2003 to concentrate on hydraulic tube fabrication, rather than on general-industry tube... Read more...
Article
March 13, 2007
Error-free tube fabrication
In addition to detecting the weld seam, some modern electronic sensors are sophisticated enough that, when properly programmed, they can differentiate between a good weld and a bad one. Picture the activity in a typical automotive assembly plant. Dozens of synchronous industrial processes... Read more...
Article
July 11, 2006
Tube and pipe bending trends
Photo courtesy of Lang Maschinenbau GmbH & Co. KG, Michelstadt, Germany. To many who have only a little experience in bending tube, the process can be mystifying at best. It often is referred to as a black art, as though it were part science and part voodoo. While bending tube isn't... Read more...
Article
June 13, 2006
The wiper die's feathered edge
In rotary draw tube bending, the tools make the bend. Indeed, this is why the process often is called mandrel bending. Despite the many advances in tube bending machinery, the rotary draw process itself has not changed since modern tube bending tools appeared a half century ago.... Read more...
Article
April 11, 2006
When a good tube bends bad - Part II
Editor's note: This is the second part of a two-part article that examines tube bending defects, possible causes, and suggested remedies. Part I discusses surface defects; Part II covers other defects, such as wall thinning, ovality, buckling, and fractures. When the stress on the... Read more...
Article
April 11, 2006
When a good tube bends bad
Editor's note: "When a good tube bends bad" is a two-part article that examines tube bending defects, possible causes, and suggested remedies. Part I discusses surface defects; Part II covers other defects, such as wall thinning, ovality, buckling, and fractures. Read more...
Article
March 7, 2006
When a good tube bends bad - Part I
The clamp used to bend this 16-gauge, 3-in.-OD aluminized steel tube slipped about 2 in. at about 75 degrees into the bend. The clamp continued to move forward, but the material did not, causing the slippage marks (horizontal lines) and wrinkles on the intrados. Editor's note:... Read more...
Article
March 7, 2006
Understanding how rotary tube and pipe cutting works
With rotary cutting, a two- or three-disk cutter head revolves around the circumference of a stationary pipe or tube while the cutters close in toward the center. The cutters penetrate only the wall thickness. Rotary pipe cutters are not new to the industry, but innovations and new... Read more...
Article
February 7, 2006
Imagination fabrication
Burke's signature play environment this year is a multievent treehouse designed to look like it is in a natural setting, complete with hollowed tree trunks and leaf climbers.
Founded in 1920, BCI Burke, Fond du Lac, Wis., is the oldest playground and park and recreation... Read more...
Article
January 10, 2006
Cutting to the chase - Integrating secondary operations
Many tube cutoff machines have evolved to integrate end forming and bending capabilities that normally are considered secondary operations. Considering the tube industry's need to reduce costs to stay competitive, the concept of integrating more operations may sound appealing. An inline system... Read more...
Article
June 13, 2002
Achieving success with rotary draw bending
Selecting a rotary draw tube bender can be a complex process. The large number of manufacturers in the marketplace and the variety of machines and options available make it difficult to make a well-informed choice. However, which machine to choose is not the only critical decision.... Read more...
Article
January 31, 2002
Using mandrels for bending tube
Tube bending applications range from very simple to very complex. Many of the more complex bends require that the tube be supported by an internal mandrel. A mandrel's purpose is to keep the tube from collapsing and wrinkling during the bending process.
An ideal bend doesn't require a... Read more...
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