Results 181 to 190 of about 4,097 (222)
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Robust springback compensation
AIP Conference Proceedings, 2013Springback simulation and springback compensation are more and more applied in productive use of die engineering. In order to successfully compensate a tool accurate springback results are needed as well as an effective compensation approach. In this paper a methodology has been introduce in order to effectively compensate tools. First step is the full
Bart Carleer, Peter Grimm
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A Springback Compensation System Based on Springback Mechanics and Design Parameter Optimization
Volume 2: 32nd Computers and Information in Engineering Conference, Parts A and B, 2012A new springback compensation system based on springback mechanics is developed. The cause of springback is the bending moment before springback. To compensate the tool shape, it is necessary to satisfy the springback mechanical equation which is expressed by curvature and bending moment. In this system, the bending moment before springback is designed
Naoyuki Doke, Tetsuo Oya
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AIP Conference Proceedings, 2005
The number of through‐thickness integration points (NIP) required for accurate springback analysis following sheet forming simulation is the subject of confusion and controversy. Li and Wagoner recommended, in 1999, based on a finite element analysis (FEA) of draw‐bending springback, the use of 25 integration points (IP).
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The number of through‐thickness integration points (NIP) required for accurate springback analysis following sheet forming simulation is the subject of confusion and controversy. Li and Wagoner recommended, in 1999, based on a finite element analysis (FEA) of draw‐bending springback, the use of 25 integration points (IP).
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Time Dependent Springback of a Magnesium Alloy
Materials & Design, 2014A time dependent springback was observed in a Mg-Al-Zn (AZ31) rolled sheet after three-point bending at room temperature (RT). The springback increased nonlinearly with time at RT. After bending, specimens were held in the bent state for up to five months, and the springback dramatically decreased after being held for one month compared with specimens ...
B. Li +5 more
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Non‐linear finite element analysis of springback
Communications in Numerical Methods in Engineering, 1999Summary: The nonlinear finite element method is employed to investigate the springback behaviour of doubly curved, titanium, sheet metal parts that are formed with reconfigurable tooling. The results of laboratory experiments confirm the predicted phenomena and the accuracy of the finite element simulations.
Kutt, Lembit M. +4 more
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Springback and time-dependent springback of 1Cr18Ni9Ti stainless steel tubes under bending
Materials & Design, 2010In this paper, the springback and time-dependent springback of 1Cr18Ni9Ti stainless steel tubes subject to bending is explored. Rotary draw bending tests have been carried out and marked time-dependent springback has been observed. A novel model in which time-dependent springback is associated with strain hardening is presented as an attempt to analyze
null Daxin E, Yafei Liu
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Design Optimization of Springback in a Deepdrawing Process
AIAA Journal, 2002The design optimization of springback in a deepdrawing process is proposed to control the e nal shape of the workpiece. The manufacturing process design problem is formulated to minimize the difference between the shape of the desired workpiece geometry and the e nal analysis result after elastic springback.
K. Choi, N. H. Kim
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Inelastic effects on springback in metals
International Journal of Plasticity, 2002zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Cleveland, R. M., Ghosh, A. K.
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Creep and anelasticity in the springback of aluminum
International Journal of Plasticity, 2004zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Wang, J. F. +4 more
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An Investigation of Springback in Wire Products
Journal of Engineering for Industry, 1972This paper attempts to develop a simple expression for springback in which material properties are considered through the use of the Ramberg–Osgood stress-strain equation. Since work has been carried out using wire specimens, two dimensional properties are assumed negligible.
J. B. Kruger, A. N. Palazotto
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