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hot extrusion

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2006
DOI: 10.31399/asm.tb.ex2.t69980323
EISBN: 978-1-62708-342-3
... Abstract The machinery and equipment required for rod and tube extrusion is determined by the specific extrusion process. This chapter provides a detailed description of the design requirements and principles of machinery and equipment for direct and indirect hot extrusion. It then covers...
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Published: 01 December 2006
Fig. 3.47 Material flow (extrusion stages) in indirect hot extrusion without a shell and without lubrication of CuZn42 billets with container diam D 0 = 110 mm More
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Published: 01 November 2013
Fig. 27 Hot extrusion methods for metal powders. Source: Ref 12 More
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Published: 01 December 2006
Fig. 3.2 Process sequence of direct hot extrusion without lubrication and without a shell, with loose dummy block. a, platen; b, die holder; c, die; d, container; e, billet; f, dummy block or pressure pad; g, extrusion stem More
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Published: 01 December 2006
Fig. 3.3 Process sequence of direct hot extrusion without lubrication and without a shell, with dummy block fixed to the stem. a, platen; b, die holder; c, die; d, container; e, billet; f, dummy block or pressure pad; g, extrusion stem More
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Published: 01 December 2006
Fig. 3.4 Billet-on-billet direct hot extrusion without lubrication and without a shell, with dummy block fixed to the stem. a, platen; b, die holder; c, die; d, container; e, billet; f, dummy block; g, extrusion stem; h, discard from the previous extrusion More
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Published: 01 December 2006
Fig. 3.9 Material flow zones in direct hot extrusion without lubrication and without a shell. A, primary deformation zone; B, secondary deformation zone; C, friction affected peripheral zone; D, dead metal zone; E, billet core; a, container; b, die; c, die holder; d, dummy block; e, stem; f More
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Published: 01 December 2006
Fig. 3.25 Process sequence in direct hot extrusion without lubrication and with a shell of copper alloys. a, platen; b, die holder; c, die; d, container; e, billet; f, dummy block; g, extrusion stem; h, cleaning billet; i, discard tube; k, shell; l, discard More
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Published: 01 December 2006
Fig. 3.27 Stages in the direct hot extrusion with a shell of the alloy CuCo 2 Be (Source: K. Müller, Srangpreβzentrum Berlin) More
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Published: 01 December 2006
Fig. 3.31 Principal material flow in direct hot extrusion with lubrication without a shell More
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Published: 01 December 2006
Fig. 3.32 Principal variation in the exit temperature ϑ S for direct hot extrusion with lubrication and without a shell for the initial billet temperature ϑ B that is much higher than the container temperature ϑ R (e.g., the direct hot extrusion with lubrication and without a shell of steel) More
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Published: 01 December 2006
Fig. 3.38 Process sequence in indirect hot extrusion without a shell. a, press platen; b, hollow stem holder; c, hollow stem; d, die; e, billet; f, container; g, sealing stem. See [ Bis 73 ]. More
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Published: 01 December 2006
Fig. 3.48 Material flow in indirect hot extrusion without a shell and without lubrication. (a) Material AlMg3; extrusion ratio V ges = 50; initial billet length l b = 500 mm; container diam D 0 = 140 mm. (b) Principal depiction of billet zones in indirect extrusion without lubrication More
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Published: 01 December 2006
Fig. 3.49 Removed aluminum shell in indirect hot extrusion with a shell and without lubrication. (a) Upset in the container on removal. (b) Partly upset [ Zie 73 ] More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2006
DOI: 10.31399/asm.tb.ex2.t69980417
EISBN: 978-1-62708-342-3
... Abstract This chapter begins with a description of the requirements of tooling and tooling material for hot extrusion. It covers the processes of designing tool and die sets for direct and indirect extrusion. Next, the chapter provides information on extrusion tooling and die sets for direct...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2013
DOI: 10.31399/asm.tb.mfub.t53740103
EISBN: 978-1-62708-308-9
..., including open-die and closed-die forging, hot upset and roll forging, high-energy-rate forging, ring rolling, rotary swaging, radial and orbital forging, isothermal and hot-die forging, precision forging, and cold forging. The chapter also includes information on cold and hot extrusion and drawing...
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Published: 01 December 2006
Fig. 3.8 Stage in hot direct extrusion of AlMg3 without lubrication and without a shell (container diam = 140 mm; extrusion ratio V = 50; initial billet length = 450 mm; initial billet temperature = container temperature = 450 °C) More
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Published: 01 December 2006
Fig. 3.89 Process sequence for direct hot tube extrusion without a shell over a fixed mandrel [ Bis 75 ] More
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Published: 01 December 2006
Fig. 3.90 Process sequence for direct hot tube extrusion with a shell over a moving mandrel [ Zil 77 , Bis 75 , Bis 77] More
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Published: 01 December 2006
Fig. 3.91 Direct hot tube extrusion over a fixed mandrel (e.g., of aluminum) without lubrication. D 0 , container diam; D DS , mandrel bar diam; D a , tube external diam; D i , tube internal diam; F St , stem load; F D , mandrel load; l 0 , upset billet length; l R , discard More