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Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005131
EISBN: 978-1-62708-186-3
... Abstract Springback refers to the elastically driven change of shape that occurs after deforming a body and then releasing it. This article presents an introduction to the concepts of springback simulation as well as recommendations for its practice in a metal forming setting of thin beams...
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Published: 01 January 1990
Fig. 29 Average springback from 90° bend of aluminum-lithium alloy 8090 and two conventional alloys. All three alloys were tested in the as-received condition. More
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Published: 01 January 1990
Fig. 6 Angular springback of heat-treatable and mill-hardened tempers of beryllium-copper C17200 and beryllium-nickel N03360 strip (90° V-block plane-strain bends) More
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Published: 01 August 2013
Fig. 10 Comparison of springback angle between Q&P 980 and DP 980 using the bending-under-tension test More
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Published: 01 January 2006
Fig. 3 Effect of various approximations ( Eq 9 , and 26 ) on simulated springback quantities. (a) Springback. (b) Springback ratio. R , radius of primary bending curvature; r , radius of curvature after springback; ε p , plastic strain; FEM, finite element modeling; t , thickness. CPS8 More
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Published: 01 January 2006
Fig. 10 Effect of sheet tension on springback for an elastic, perfectly plastic constitutive equation for low-strength steel. (a) Constant thickness. (b) Changing thickness. r , radius of curvature after springback; R , radius of primary bending curvature; t , sheet thickness; E , Young's More
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Published: 01 January 2006
Fig. 11 Role of normalized sheet tension and bend radius on springback for elastoplastic, hardening behavior ( Eq 58 and 59 ) of low-strength steel ( Eq 26 ). See Eq 7 , and 59 . r , radius of curvature after springback; R , radius of primary bending curvature; t , sheet thickness More
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Published: 01 January 2006
Fig. 13 Effect of strain approximation on springback calculation. See text for definition of variables. More
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Published: 01 January 2006
Fig. 17 Sensitivity of simulated draw-bend springback to mesh size ( N EL ) and number of through-thickness integration points ( N IP ). (a) Nonphysical springback predictions obtained using typical sheet-forming simulation parameters. (b) Accuracy of selected springback solutions depending More
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Published: 01 January 2006
Fig. 18 Fractional error of computed moment (or springback) using trapezoidal integration and 51 integration points ( N IP ) through the thickness. The limiting error (i.e., the assured maximum error in the vicinity of a set of conditions) is shown as smooth curves, and the maximum error More
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Published: 01 January 2006
Fig. 22 The role of finite element type on draw-bend springback prediction. (a) Results for various R / t (bend radius/sheet thickness). (b) Results for various F b (normalized back force). Δθ, springback angle; DQSK, drawing quality special killed; μ, friction coefficient More
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Published: 01 January 2006
Fig. 24 Simulated role of plasticity in springback for a draw-bend test. (a) Difference of springback angle (Δθ) for pure-elastic and elastoplastic springback simulations. (b) Differences in through-thickness stress distribution following pure-elastic and elastoplastic springback. R / t More
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Published: 01 January 2006
Fig. 26 The role of numerical procedures and constitutive modeling in springback accuracy as represented by standard error of fit,<σ>, to measurement. Springback angles (Δθ): (1) Plane stress, 5 integration points ( N IP ), 600 elements along length ( N EL ), von Mises yield More
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Published: 01 January 2006
Fig. 50 Boundary conditions for the springback analysis of the automotive underbody cross-member panel More
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Published: 01 January 2006
Fig. 51 Predicted displacement magnitude after springback of the automotive underbody cross-member panel More
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Published: 01 January 2006
Fig. 52 Predicted effective stress contour (a) before and (b) after springback of the automotive underbody cross-member panel More
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Published: 01 January 2006
Fig. 13 Tooling geometry and springback angle in a plane-strain channel forming (only half-model is shown) More
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Published: 01 January 2006
Fig. 7 Springback forces More
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Published: 01 January 2006
Fig. 8 Methods of overcoming springback More
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Published: 01 December 1998
Fig. 8 Effect of ratio of punch radius to work metal thickness on springback in the press-brake bending of Ti-6Al-4V at two temperatures More