Results 231 to 240 of about 71,352 (265)

Research on the Forming Limit Diagram Based on Laser Shock Forming

Applied Mechanics and Materials, 2010
Laser shock forming (LSF) of sheet metal is a novel technology in plastic deformation. It is necessary to correctly predict the Forming Limit Diagram (FLD) based on LSF. New failure maximum thickness reduction rate criterion is used to determine the forming limit based on the numerical system during LSF. The relationship model between maximum thickness
Yin Fang Jiang, Zhen Zhou Tang, Zhi Fei Li, Lei Fang   +3 more
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Investigation of lubrication effects in the right side of the forming limit diagrams

AIP Conference Proceedings, 2014
In the present work, effect of lubrications was investigated in the right side of the forming limit diagram (FLD) by using the out-of-plane formability test. Interstitial-free steel (IF) sheet was used in this study. Primarily, mechanical properties of material like yield, tensile strengths, strain hardening coefficient (n), normal and planar ...
Kayali, Eyup Sabri, Şener, Bora
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Forming‐limit diagram numerical predictions: yield criteria studies

Communications in Numerical Methods in Engineering, 2002
AbstractIn this work, it is shown the numerical formulation for prediction of the right‐hand side of forming limit diagram (FLD). Five different yield criterias were used: Von Mises', Hill's (1948), Hill's (1979), Logan and Hosford's and Hill's (1993).
Ávila, Antonio F., Vieira, Evânio L. S.   +1 more
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Influence of Pre-Forming on the Forming Limit Diagram of Aluminum and Steel Sheets

Key Engineering Materials, 2007
This paper presents a method for the experimental determination of forming limit diagrams under non linear strain paths. The method consists in pre-forming the sheets under two different strain conditions: uniaxial and biaxial, and then stretching the samples, cut out of the preformed sheets, using a Nakajima testing setup.
Massimo Tolazzi, Marion Merklein
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Forming limit diagram of DP600 steel sheets during electrohydraulic forming

The International Journal of Advanced Manufacturing Technology, 2019
Electrohydraulic forming is a typical high-speed forming which can significantly improve the formability of sheet metal. The objectives of this paper are to explore the influence of preset wire length and lifting height on the equi-biaxial stretching forming limit of DP600 steel sheets during electrohydraulic forming.
Haiping Yu, Qiuli Zheng
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Forming limit diagrams for single-point incremental forming of aluminium sheet

Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture, 2005
The single-point incremental forming (SPIF) process is described. The maximum draw angle for SPIF is defined and specific values are given for 3003-0 and 5754-0 aluminium. Forming limit diagrams (FLDs) are developed for incremental forming of aluminium sheet, using SPIF.
J Jeswiet, D Young
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Generalised forming limit diagrams showing increased forming limits with non-planar stress states

International Journal of Plasticity, 2009
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Allwood, Julian M., Shouler, Daniel R.
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Methods of Establishing Forming Limit Diagram of Tube Hydroforming

Advanced Materials Research, 2012
Forming severity is one of the significant indexes to assess formability of tube hydroforming. The state of strain can be accurately reflected when tube reaches forming limit, mechanical rules during forming processes can be revealed as well by using the forming limit diagram (FLD).
Guo Lin Hu, Lian Fa Yang, Jian Wei Liu
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Determination and use of the forming limit stress diagrams in sheet metal forming

Journal of Materials Processing Technology, 1995
In this text we take stock of the determination of the forming limit stress diagrams for thin sheets and we propose methods to use these diagrams as stop tests at the time of the numeric simulation of deep drawing operations by means of the finite element method.
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Investigation of the effect of anisotropy on Generalized Forming Limit Diagram

The Journal of Strain Analysis for Engineering Design
In contemporary industrial practices, various methods are employed to subject raw metal sheets to deformation in order to fabricate requisite components. These sheets exhibit a defined capacity for deformation during the forming process. Over recent decades, a plethora of experimental and numerical methodologies have emerged to ascertain these forming ...
Mohammad Mehdi Ghane Shalmani, Ali Basti, Abolfazl Taherkhani   +2 more
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