Results 261 to 270 of about 47,683 (307)

Characteristics of welds formed by pressure welding incorporating stirring of the weld material (FSW)

Welding International, 2004
(2004). Characteristics of welds formed by pressure welding incorporating stirring of the weld material (FSW) Welding International: Vol. 18, No. 1, pp. 5-10.
A Pietras, L Zadroga, M Lomozik
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Wave Forming Mechanisms in Explosive Welding

Materials Science Forum, 2004
Experimental results of wavy metal interfaces obtained by explosive welding are presented and used to determine which wave forming mechanism occurred. It was found that for small collision angles (smaller than about 20°) the Von Karman or jet indentation mechanism occurs, while for large collision angles a straight metal interface is obtained. However,
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Weld strength of laser-welded hot-press-forming steel

Journal of Laser Applications, 2012
There is an increasing demand for ultrahigh-strength steel in automotive industries to facilitate the manufacture of lightweight vehicles without compromising their security features. Although transformation-induced plasticity and dual phase steels have strengths of under 1 GPa, boron-alloyed steel obtained after the hot-press process has a strength of
Minjung Kang, Cheolhee Kim, Jongsup Lee
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Estimation of Stress Concentration in a Welded Joint Formed by Explosive Welding

Journal of Applied Mechanics and Technical Physics, 2018
It is shown that a welded joint formed during explosion welding at a microlevel (at a wavelength of the order of several hundred micrometers) has wavy geometry. Stress concentration caused by local geometry of the joint is calculated for various shapes and amplitudes of the welded joint wave and combinations of welded materials.
A. G. Kolpakov, S. I. Rakin
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Hydro-forming of tailor-welded blanks

International Technology and Innovation Conference 2006 (ITIC 2006), 2006
Due to the requirements to save the energy and to reduce the tail gas in automobile, making good use of forming technologies in the tailor-welded blanks (TWBs) which can reduce the part weights significantly becomes more and more important. And, nowadays Hydro-forming techniques have been largely accepted by industries for the production of components ...
null Wang Jianmin, null Zhao Yan, null Jiang Yinfang, null Chen Dianjian   +3 more
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Study of weld form and weld bead in bottom position at semi-automatic underwater wet welding

Blanking productions in mechanical engineering (press forging, foundry and other productions), 2021
Some features of underwater mechanized and automatic wet welding with pulse feed of the electrode wire are considered. The conditions for experimental research to identify the parameters of forming of the weld metal at different parameters of pulse feed of the electrode wire are described.
V.A. Lebedev, D.N. Krazhanovsky
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Forming of Aluminum Tailor Welded Blanks

SAE Technical Paper Series, 2001
<div class="htmlview paragraph">Tailor welded blanks offer an excellent opportunity to reduce manufacturing costs, decrease vehicle weight, and improve the quality of sheet metal stampings. However, tearing near the weld seam is a concern in Tailor Welded Blanks due to material changes in the fusion and heat affected zones of the weld. Therefore,
Brad Kinsey, Vikram Viswanathan, Jian Cao   +2 more
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Analysis of forming titanium welded blanks

Computational Materials Science, 2014
Abstract Weight reduction of the structure is a priority issue in the transport industry, especially in aviation. The application of tailor welded blanks (TWB) seems to be the key to success. TWB technology has been successfully used in the automotive industry for steel and aluminium sheets.
Janina Adamus, Piotr Lacki
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Special features of the structure of aluminum alloy welds formed by friction welding

Metal Science and Heat Treatment, 2009
The structure of welds formed by friction welding of sheets of aluminum alloys 1201 and AMg5 with a thickness of 2, 4, and 5 mm is studied. The mechanical properties of the welds are determined. The differences in the structure and properties of the welds are described. Friction welding is shown to be more advantageous than fusion welding.
M. I. Silis, A. A. Eliseev, V. É. Silis, N. V. Makarov, G. V. Shillo, T. N. Smirnova   +5 more
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FORMING AND WELDING INNOVATIONS FOR ARMOR STEELS

SAE Technical Paper Series, 2018
<title>ABSTRACT</title> <p>This paper reviews research that has been conducted to develop inductively assisted localized hot forming bending technologies, and to use standardized welding tests to assess the practicality and potential benefits of adopting
John Lawmon, Boian Alexandrov, Matthew Duffey., Tiffany Ngan.   +3 more
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