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Hydroforming Tech Cell >
Hydroforming Article List
Hydroforming related articles
There are 54 articles related to hydroforming.
ASTM A513 (Standard Specification for Electric-Resistance-Welded Carbon and Alloy Steel Mechanical Tubing) is a conventional specification that governs tube for many uses, and hydroformers have been relying on tube made to this standard for many years. However, some hydroformers think that some aspe...
By: Klaus Hertell and Prashant Soman - www.thefabricator.com, 9/30/08
The energy sector is hot right now, and so is pipe production. Finding the optimum material for making pipe for this industry is tricky. Low-alloy carbon steels tend to be strong, but lack corrosion resistance. Stainless steels resist corrosion but lack strength. Cladding low-alloy carbon steel with...
By: Colin Macrae - www.thefabricator.com, 6/17/08
Attendees of the fifth Hydroforming Conference and Exhibition, organized by the Tube & Pipe Association, International, and the Society of Manufacturing Engineers, learned that hydroforming technology is not dead yet.
By: Dan Davis, Editor-in-Chief - The FABRICATOR®, 11/6/07
Tube traditionally is produced with a constant wall thickness, leaving design engineers stuck with designing tubular parts and unable to optimize them. A tube with variable wall thickness changes all that. This technology allows design engineers to specify the wall thickness in various areas of a tu...
By: Tanya Weber-Bateman and Scott Thibodeau - www.thefabricator.com, 9/11/07
More than a decade ago, tube hydroforming grew in two directions: low-pressure hydroforming (a patented process) and high-pressure hydroforming. Since then the industry has grown to include all manner of robots, laser cutting systems, punching operations, and so on. Manufacturing consultant Gary Mor...
By: Gary Morphy, Contributing Writer - www.thefabricator.com, 6/12/07
Sheet hydroforming has fewer restrictions when forming complicated parts, which gives styling designers and manufacturing engineersmore flexibility during the design process. To provide a stylish body shape for the Pontiac Solstice®, GM chose sheet hydroforming to manufacture its hood, door, deck li...
By: Trent Maki and Cam Walter - www.thefabricator.com, 5/8/07
Before you can hydroform tube, you bend it. Then it springs back. You can compensate by overbending it, but first you have to predict the amount of springback.
By: Dr. Ho-Kook Lee and C.J. Van Tyne - www.thefabricator.com, 4/10/07
The growth in hydroforming use has slowed as tube hydroformers, particularly in the automotive industry, are taking a step back to examine process options in an effort to determine the most efficient, cost-effective process. Some even have reverted to stamping and welding formerly hydroformed pa...
By: Gary Morphy, Contributing Writer - www.thefabricator.com, 10/10/06
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By: Yingyot Aue-u-lan, Jon Ander Esnaloa, David Guza, and Taylan Altan, Contributing Writers - The FABRICATOR®, 10/3/06
Under the right circumstances, hydroforming can be a viable, cost-effective manufacturing process. Tube hydroforming often produces stronger structural components than can be achieved with more conventional methods. This article explains tube hydroforming, describes its evolution, and discusses the ...
By: Gary Morphy, Contributing Writer - www.thefabricator.com, 6/13/06
Hydroforming has become a favored technology for automotive parts because it allows manufacturers to increase a component's strength, reduce its weight, and reduce the number of parts in an assembly. Another important benefit, one that is often overlooked, is the increase in design freedom this tech...
By: Paul Tauzer - www.thefabricator.com, 6/13/06
The use of high-strength steels (HSS) and ultrahigh-strength steels (UHSS) has made stamping complex structural automotive components increasingly difficult and capital-intensive. Changing from traditional stamping (at room temperature on a mechanical press) to hot stamping (at elevated temperatures...
By: Andreas Kinzyk - The FABRICATOR®, 5/9/06
Part three of a three-part series on sheet hydroforming, this article reviews the SHF-P and SHF-D processes.
www.thefabricator.com, 4/11/06
To make a complex heat exchanger shell, a company produces a prototype model using the hydroforming process, analyzing fatigue, thinning, and cycle times to decide if the process will prove to be cost-effective.
By: Tom Driggers - www.thefabricator.com, 3/7/06
In this last article in a nine-part series, Gary Morphy reviews high-pressure and pressure sequence hydroforming and discusses factors to consider when deciding which process is best for a particular application. The decision should be based in part on anticipating future needs.
By: Gary Morphy, Contributing Writer - www.thefabricator.com, 2/7/06
Whether they are producing automobiles or hydroforming press parts, designers, manufacturers, and assembly personnel are very concerned about dimensional stability. Surfaces and holes must be located in a specified range and smaller is better. Concern escalates as the drive to improve quality and re...
By: Gary Morphy, Contributing Writer - www.thefabricator.com, 6/14/05
Editor's Note: This article is Part VII in a series about design flexibility in tube hydroforming. Please read Part I, Part II, Part III, Part IV, Part V, and Part VI....
By: Gary Morphy, Contributing Writer - www.thefabricator.com, 2/8/05
The demand for lightweight components continues to be a primary driver in the automotive industry.
By: Maarten Kelder and Kevin Edgar, Contributing Writers - www.thefabricator.com, 12/7/04
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By: Gary Morphy, Contributing Writer - www.thefabricator.com, 9/14/04
Hydroforming often results in localized thinning. Using engineered tubes--tubes that have a thicker wall where the tube is most prone to thinning--can result in a stronger finished component.
By: Yingyot Aue-u-lan, Prashant Soman, Serhat Kaya, Chuck Smith, and Dr. Taylan Altan, Contributing Writers - www.thefabricator.com, 6/8/04
Commentary from the people interviewed at the International Conference on Hydroforming (Oct. 2003) indicate that trends include an increasing interest in forming aluminum and other lightweight materials; more use of tailored tubes; and that sheet hydroforming is expected to grow faster than tube hyd...
By: Dr. Stefan Wagner, Contributing Writer - www.thefabricator.com, 3/25/04
Tube hydroforming technology continues to develop in ways that improve part utility, economy, or process robustness. Auto parts that have recently been produced by hydroforming include roof rails, radiator enclosures, a front-end structural module, and roof rails.
By: Gary Morphy, Contributing Writer - www.thefabricator.com, 3/25/04
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By: Gary Morphy, Contributing Writer - www.thefabricator.com, 2/26/04
Hydroforming was one of the fastest-growing metal forming technologies during the 1990s. Most of U.S. industry cooled down during and after the recession of 2001, but things have been heating up lately, and the world of hydroforming is no exception. The North American Hydroforming Conference and Exh...
By: Eric Lundin, Editor, TPJ-The Tube & Pipe Journal® - www.thefabricator.com, 1/13/04
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By: Gary Morphy, Contributing Writer - www.thefabricator.com, 10/23/03
Hydroforming is one of the most important fields in production manufacturing. In recent years many single presses, groups of presses, and entire production plants for internal high-pressure (IHP) hydroforming of tubes and extrusions have been installed, especially in the Americas and in Europe. The ...
By: Klaus Siegert and Matthias Aust, Contributing Writer - www.thefabricator.com, 10/9/03
The most common way to establish tube length after hydroforming is by cutting or shearing the tube to a specified dimension; however, cutting out this step can reduce scrap. A new method designed to eliminate this step combines forming the end of a tube to resemble its final form with using a hydrof...
By: Donald Godfrey, Scott Huth, and Murray Mason, Contributing Writers - www.thefabricator.com, 10/9/03
Hydroforming has become a competitive metal forming method and has succeeded in many applications because of its weight- and cost-saving attributes, elimination of joining operations, and ability to offer part design for confined spaces.
By: Klaus Heimerl and Ulrich Lücke, Contributing Writers - www.thefabricator.com, 9/25/03
F & P Manufacturing Inc., a tier-one automotive components supplier, focused on four areas when it developed a hydroforming line for manufacturing Honda Accord engine cradles. These areas were eliminating end scrap, decoupling the bending machines from the manufacturing line, reducing cycle time, an...
By: Eric Lundin, Editor, TPJ-The Tube & Pipe Journal® - www.thefabricator.com, 7/24/03
It is well-known that tube has become an important material for hydroforming hollow components. The increasing complexity of product structures, particularly in the automotive industry, often requires one or more forming operations before a tube actually is hydroformed. Prebending is one of these fo...
By: Ghafoor Khodayari Ph.D., and Michael Worswick, Ph.D., Contributing Writers - www.thefabricator.com, 7/10/03
For hydraulic tube bulging, direct pressure control is the most commonly used process. Pressure control allows engineers to determine the correct capacity hydraulic system and, more importantly, prevent tube rupture. However, inflow control, or control of the volume of fluid inside the tube, theoret...
By: Atsushi Shirayori, Contributing Writer - www.thefabricator.com, 6/12/03
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By: Gary Morphy, Contributing Writer - www.thefabricator.com, 4/24/03
Hydroforming is gaining ground in the manufacture of many automotive components,such as pillars, frame rails, and engine cradles. Automakers are finding hydroforming advantageous for forming many smaller parts also. The process is useful for manufacturing an automobile fuel filler tube, which is th...
By: Thomas Driggers, Contributing Writer - www.thefabricator.com, 3/27/03
Passenger car fuel tanks have for many years been made out of plastic. To reduce MTBE leaks in the groundwater, the Department of Energy, The State of California, and the Western States Petroleum Association are studying material alternatives such as high-strength steel, stainless steel and aluminum...
By: Taylan Altan, Contributing Writer - www.thefabricator.com, 10/24/02
Comparing and correlating two tests, a common bench test (twist compression) and a straight-tube corner-fill test simulate hydroforming to find the coefficient of friction.
By: Ghafoor Khodayari Ph.D., Jean Reid Ph.D., and Mark Garnett, Contributing Writers - www.thefabricator.com, 10/10/02
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By: Gary Morphy, Contributing Writer - www.thefabricator.com, 10/10/02
As tubular hydroforming becomes a competitive process for the mass production of automotive parts, a tube's material properties must be consistent. To predict variations in material properties, many tube producers use the uniaxial tensile test. Because the specimens for the tensile test are collecte...
By: Shrinivas Patil, Yingyot Aue-u-lan, and Taylan Altan, Contributing Writers - www.thefabricator.com, 10/10/02
A new type of hydroforming press was recently developed for sheet applications. The new press incorporates data acquisition and control features for research purposes. Current press frame designs for tube and sheet forming are uneconomic for large forces. This press achieves a clamping force of 100 ...
By: Markus Erras, Contributing Writer - www.thefabricator.com, 9/12/02
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By: Gary Morphy, Contributing Writer - www.thefabricator.com, 5/16/02
This article discusses an approach to predicting failure in hydroforming prebent aluminum tubes. While strains are well researched for stamping sheet, this type of knowledge is lacking for hydroforming tubular components. Because the strains are different—prebent hydroformed tubular parts experience...
By: Nathan Dwyer, Contributing Writer - www.thefabricator.com, 3/14/02
This article discusses tests that are used to evaluate flow stress in tube and why the uniaxial test is not suitable for this application. It discusses a bulge test, which stresses the tube biaxially, including tooling, software, and analysis tools for evaluating stresses.
By: Srikanth Kulukuru, Yingyot Aue-ul-lan, and Taylan Altan, Contributing Writers - www.thefabricator.com, 3/14/02
This article examines hydroforming in Germany, focusing on the advancement of the technology. It specifically discusses growing automotive uses, a new type of hydroforming press, material quality requirements, cost factors, new testing methods, and simulation software.
By: Klaus Vollrath, Contributing Writer - The FABRICATOR®, 1/24/02
This article relates how a Florida-based company used hydroforming to produce titanium housings for implantable pumps for a Massachusetts-based manufacturer.
By: T.R. Balmer, Contributing Writer - www.thefabricator.com, 1/10/02
The bending characteristics of a tube depend on the material it is made of. Exceeding the allowable limits of this deformation results in unusable parts. The author relates his company's examination and comparison of the bending of two different seamless, extruded tubes: aluminum alloy and steel.
By: Ghafoor Khodayari Ph.D., Contributing Writer - www.thefabricator.com, 1/10/02
T-shapes and Y-shapes are the most commonly hydroformed exhaust system components for automobiles. This article reports on the investigation into the metal flow in Y-shape hydroforming by the Engineering Research Center for Net Shape Manufacturing (ERC/NSM) at The Ohio State University, which conduc...
By: Suwat Jirathearanat, Christph Hartl, and Taylan Altan, Contributing Writers - www.thefabricator.com, 11/29/01
This article examines two transitions that are occurring in the automotive industry—the change from stamping to hydroforming, and the substitution of aluminum where steel was used previously.
By: Daniel Hunter, Contributing Writer - www.thefabricator.com, 11/15/01
Hydroforming the parts in a vehicle structure can be of immense benefit on several counts, as a review of a recent project at the author's company can attest.
By: Gary Morphy, Contributing Writer - www.thefabricator.com, 10/25/01
The list of applications for hydroforming with end feeding is growing all the time. Maybe you should check into how this technology could benefit your operation.
By: Harry Singh, Contributing Writer - www.thefabricator.com, 8/16/01
You can use several strategies for starting a hydroforming operation on a limited budget. Review your alternatives for selecting a press, fluid intensification system, and developing the tooling necessary for your operation before you take the plunge.
By: Kevin Webb, Contributing Writer - www.thefabricator.com, 7/12/01
A typical tube hydroforming system is shown in Figure 1. Within this system, a host of factors must be taken into account, from starting tube geometry and material properties to the quality of the final part (such as thickness distribution and dimensional accuracy).
By: Taylan Altan and Suwat Jirathearanat, Contributing Writer - www.thefabricator.com, 6/15/01
Recent advances at the University of Stuttgart and acfross the industry have opened doors for hydroforming all kinds of materials and shapes.
By: Klaus Siegert, Markus Haeussermann, and Bruno Losch, Contributing Writer - www.thefabricator.com, 5/15/01
Many factors come into play when attempting to execute a production hydroforming operation, among them material selection, friction and lubricants, tube bending and preforming, and equipment. Many companies in the automotive sector are experiencing great success with the process, which can reduce we...
By: Mustafa Ahmetoglu, Contributing Writer - The FABRICATOR®, 3/5/01
Simulation is used in the hydroforming process to replace the experimental investigation and tests required in a real tryout process.
By: Reimund Neugebauer, Matthias Putz,Jörg Leihkauf, and B. Schulze, Contributing Writers - www.thefabricator.com, 2/19/01
Pressure-sequence hydroforming can form complex parts as well as forming most ductile metals, including high-strength, low-alloy, and stainless steels with sharper corners, thick-walled tube, and other difficult features.
By: Gary Morphy, Contributing Writer - www.thefabricator.com, 2/19/01
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