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cold extrusion

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Published: 01 February 2005
Fig. 2.5 Forward and backward extrusion processes. (a) Common cold extrusion processes (P, punch; W, workpiece; C, container; E, ejector). [ Feldman, 1977 ]. (b) Example of a component produced using forward rod and backward extrusion. Left to right: sheared blank, simultaneous forward rod More
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Published: 01 February 2005
Fig. 17.15 General designs for punches used in cold extrusion [ ICFG, 1992 ] More
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Published: 01 November 2013
Fig. 29 Displacement of metal in cold extrusion. (a) Backward. (b) Forward. (c and d) Combined backward and forward. Source: Ref 10 More
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Published: 01 December 2006
Fig. 3.33 Process sequence in direct cold extrusion with lubrication and without a shell. a, platen; b, die holder; c, die; d, container; e, billet; f, stem with fixed dummy block; g, manipulator; h, saw More
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Published: 01 December 2006
Fig. 3.35 Geometry of the deformation zone in the direct cold extrusion with lubrication without a shell and with a conical die More
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Published: 01 December 2006
Fig. 3.55 Principal depiction of indirect cold extrusion with lubrication and without a shell [ Sie 77 ] More
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Published: 01 December 2006
Fig. 3.57 Process sequence for indirect cold extrusion with lubrication and without a shell. a, platen; b, die holder; c, hollow stem; d, die; e, billet; f, container; g, sealing stem; h, lubricant film; i, separator; j, manipulator More
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Published: 01 December 2006
Fig. 3.58 Stages in indirect cold extrusion with lubrication and without a shell of Al99.5 More
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Published: 30 September 2023
Figure 10.16: Typical defects observed in cold extrusion of aluminum alloys. (a) Scratching or scoring due to die pickup; (b) roughening associated with lubrication (see orange peel , Sec. 3.2.1 ); (c) bambooing, see also Fig. 10.18 ; (d) surface cracking due to shear stresses; (e More
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Published: 01 February 2005
Fig. 17.2 Various types of cold forging (extrusion) techniques (P, punch; C, container; W, workpiece; E, ejector) [ Feldmann, 1977 ] More
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Published: 01 February 2005
Fig. 17.14 Tooling setup for cold forging. (a) Can extrusion. (b) Upsetting. (c) Forward extrusion [ ICFG, 1992 ] More
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Published: 30 September 2023
Figure 10.8: The equal channel angular extrusion (ECAE) process, used to cold work a material without reducing its cross-section. More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040211
EISBN: 978-1-62708-300-3
... Abstract This chapter discusses the process of cold forging and its effect on various materials. It describes billet preparation and lubrication procedures, cold upsetting techniques, and the use of slab analysis for estimating cold forging loads. It likewise describes extrusion processes...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2006
DOI: 10.31399/asm.tb.ex2.t69980059
EISBN: 978-1-62708-342-3
... Abstract This chapter opens with a discussion of the classification of rod and tube extrusion processes. The standard processes involve hot working (extrusion at temperatures above room temperature), but some specialized cold working processes are also used for rod and tube extrusion. The next...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 June 2023
DOI: 10.31399/asm.tb.atia.t59340143
EISBN: 978-1-62708-427-7
... the general types of aluminum extrusion alloys. An overview of free-machining alloys and products, and weldable 6xxx and 7xxx high-strength structural alloys is also provided. aluminum alloys aluminum extrusion cold extrusion free-machining alloys hot extrusion wire drawing wire production...
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Published: 01 December 2006
Fig. 3.36 Principal representation of the variation of the axial compressive stress p x and the radial compressive stress p r in direct cold extrusion with lubrication without a shell. l 0 , upset billet length; s St , stem displacement; D 0 , container diam; D S , extrusion diam More
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240279
EISBN: 978-1-62708-251-8
... hot. Secondary processes, which are used to produce the final product shape, are conducted either hot or cold. The chapter discusses the primary objectives, principal types, advantages, and disadvantages of both primary and secondary metalworking processes. They are rolling, forging, extrusion, sheet...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040237
EISBN: 978-1-62708-300-3
.... 18.4.1 Prediction and Elimination of Defects in Cold Extrusion <xref ref-type="bibr" rid="t51040237-ref6">[Hannan et al., 2000]</xref> In the automotive industry, many shaft and shaftlike components, including fasteners, are produced by forward extrusion. Some of these components are critical...
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Published: 01 December 2006
Fig. 3.34 Principal variation in the axial force F M , F R , and F St over the stem displacement for direct cold extrusion with lubrication and without a shell More
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Published: 01 December 2006
Fig. 3.37 Calculated variation of the stem load over the stem displacement in direct cold extrusion of aluminum with lubrication and without a shell. D 0 = 85 mm; V = 50; l B = 450 mm + tip; μ = 0.02; R eH = 120 N/mm 2 More