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punch

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Published: 01 August 2012
Fig. 8.18 Bulge formation in sheet hydroforming with punch. (a) Bulge at punch/blank holder interface and at inclined/tapered punch locations. (b) Due to uneven contact between sheet and tool, skid marks can occur because of sheet rubbing at sharp punch corners. Source: Ref 8.20 More
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Published: 01 August 2012
Fig. 8.25 Warm sheet hydroforming. (a) With punch using cylindrical punch. Source: Ref 8.25 . (b) With die. Source: Ref 8.26 More
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Published: 01 August 2012
Fig. 2.27 Schematic of punch force/punch displacement curve during V-die bending More
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Published: 01 August 2012
Fig. 2.29 Schematic of punch force/punch displacement curve during U-die bending More
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Published: 01 August 2012
Fig. 8.9 Punch force/punch stroke diagram: ironing process combined with forming. Source: Ref 8.3 More
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Published: 01 August 2012
Fig. 8.18 Punch force/punch stroke curves obtained from finite element model (FEM) simulations and experiment (Exp) with lubricant (Lub A). COF, coefficient of friction. Source: Ref 8.15 More
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Published: 01 August 2012
Fig. 8.19 Punch force/punch stroke curves for different K -values More
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Published: 01 August 2012
Fig. 8.20 Punch force/punch stroke curves for different n -values More
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Published: 01 August 2012
Fig. 8.21 Punch force/punch stroke curves for different blank thickness values obtained in experiment (Exp) and finite element model (FEM) simulations More
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Published: 01 August 2012
Fig. 8.22 Punch force/punch stroke curves for different blank diameters in experiment (Exp) and finite element model (FEM) simulations More
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Published: 01 August 2012
Fig. 8.23 Punch force/punch stroke curves for different coefficients of friction, μ, obtained in experiment (Exp) and finite element model (FEM) simulations More
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Published: 01 August 2012
Fig. 11.11 Example punch motions of constant and variable punch speeds. Source: Ref 11.13 More
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Published: 01 February 2005
Fig. 17.11 Schematic illustration of punch load versus punch displacement curves in forward rod and backward cup extrusion processes More
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Published: 30 April 2020
Fig. 6.10 A step in the component height requires splitting of the punch to deliver equivalent levels of densification. Otherwise, the compact will have high- and low-density regions that cause cracking or warpage. More
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Published: 01 July 2009
Fig. 20.7 Cross-sectional view of a simple, single-action punch and draw ring used for deep drawing beryllium. Source: Blakeslee 1979 More
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Published: 01 October 2005
Fig. 5.2 Typical load-displacement curves in small punch tests for ductile and brittle behavior. Small punch energy is measured as the area under the curve up to the peak load. Source: Ref 3 . With kind permission of Springer Science and Business Media More
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Published: 01 August 2012
Fig. 4.6 Variation of punch diameter and wall thinning in progressive forming stages (part A). Source: Ref 4.6 More
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Published: 01 August 2012
Fig. 4.11 Comparison of punch diameters predicted by experience-based and finite-element method (FEM)-assisted methods More
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Published: 01 August 2012
Fig. 4.13 Comparison of punch corner radii predicted by experience-based and finite-element method (FEM)-assisted methods More
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Published: 01 August 2012
Fig. 5.19 In nonisothermal warm forming, cooling the die corner and the punch increases drawability. More