Results 161 to 170 of about 365,605 (203)

Tube-hydroforming experiments on an Al 7003 extruded tube

Journal of Materials Processing Technology, 2006
Abstract Tube hydroforming (THF) is a valid alternative technique for the production of parts with enhanced performance in terms of resistance and feasibility of complex shapes. The present paper shows the results of the first tests conducted at the Brescia University Laboratory where experimental equipment, able to run THF experiments, is available.
CERETTI, Elisabetta, CONTRI, Carlo, GIARDINI, Claudio   +2 more
openaire   +2 more sources

Material Aspects of Tube-Hydroforming

SAE Technical Paper Series, 1999
<div class="htmlview paragraph">Tube hydroforming includes several aspects related to the manufacturing process in particular pre-bending, part design, press and tooling, and also naturally the material to be formed. This is regardless of whether the low pressure technique is applied resulting in a constant perimeter or the high-pressure ...
Jörg Gerlach, Klaus W. Blümel, Uwe Kneiphoff, Günter Eyl   +3 more
openaire   +1 more source

Hydroforming (Sheets and Tubes)

2014
Hydroforming is a soft tool forming process, where a liquid medium, generally water with a small percentage of added oil, is pressurized and controlled by means of a hydraulic circuit and used to deform the workpiece, either a tube or a sheet, into the final component shape.
CERETTI, Elisabetta, GIARDINI, Claudio, FIORENTINO, Antonio   +2 more
openaire   +4 more sources

Further Development on Tube Hydroforming

2015
Tube hydroforming is a technology of manufacturing tubular products, in which a tube set in a die is deformed by internal high pressure and axial feeding from both ends of the tube in accordance with the die shape. The origin of tube hydroforming is T-forming, by which a branch is formed in a tube by hydraulic bulging.
Ken-ichi Manabe, Sadakatsu Fuchizawa
openaire   +1 more source

Friction tests in tube hydroforming

Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture, 2005
The objective of this paper is to propose a friction test method to evaluate the performance of different kinds of lubricants and determine their coefficients of friction in tube hydroforming processes. A self-designed apparatus is used to conduct the experiments of friction tests.
Yeong-Maw Hwang, Li-Shan Huang
openaire   +1 more source

Tube Hydroforming: Efficiency and Effectiveness of Pressure Sequence Hydroforming

SAE Technical Paper Series, 1998
<div class="htmlview paragraph">Tube hydroforming is a technology that is new to many and proving it's merits as a viable and often superior alternative to welding tubular assemblies from stampings.</div> <div class="htmlview paragraph">This paper discusses how pressure sequence and high pressure hydroforming techniques work, how two ...
openaire   +1 more source

Collapse characteristics of hydroformed tubes

Metals and Materials International, 2002
Tube hydroforming technology (THF) has been extensively applied to auto-body structural members such as the engine cradle and side member in order to meet the urgent need for vehicle weight and cost reduction as well as high quality for collision accidents.
Kim, YS, Lee, YM, Kim, C, Hwang, SM
openaire   +2 more sources

Loading path optimization of tube hydroforming process

International Journal of Machine Tools and Manufacture, 2005
Optimization methods along with finite element simulations were utilized to determine the optimum loading paths for closed-die and T-joint tube hydroforming processes. The objective was to produce a part with minimum thickness variation while keeping the
Ghatu Subhash
exaly   +2 more sources

Theoretical Analysis of Hydroforming of Tubes

Academic Journal of Manufacturing Engineering, 2007
The tube hydroforming demands certain theoretical analysis verified with numerical analysis. In this paper is shown numerical simulation of tube hydroforming for different kind of materials and defined value of coefficient of friction. The obtained results are presented the change of tube thickness, as well as, stress and diagram of axial forces during
Karabegović, Edina, Jurković, Milan, Jurković, Zoran   +2 more
openaire   +3 more sources

The Bulge of Tubes and a Failure Criterion for Tube Hydroforming

SAE Technical Paper Series, 2001
<div class="htmlview paragraph">The bulge test in hydroforming is a simple fundamental experiment used to obtain basic knowledge in tube expansion. The results can be used to assist design and manufacturing of hydroformed automotive parts. It also can be used to develop a failure criterion for tubes in hydroforming.
openaire   +1 more source