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indirect 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
... Equipment for indirect extrusion with equipment for the different operations Table 6.7 Equipment for indirect extrusion with equipment for the different operations Indirect extrusion (a) Equipment Light metal Heavy Metal Special Case Standard Special case Press...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2006
DOI: 10.31399/asm.tb.ex2.t69980059
EISBN: 978-1-62708-342-3
... Fig. 3.1 (a) Direct extrusion processes. (b) Indirect extrusion processes. (c) Hydrostatic extrusion processes. (d) Special extrusion processes Fig. 3.2 Process sequence of direct hot extrusion without lubrication and without a shell, with loose dummy block. a, platen; b, die holder...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2006
DOI: 10.31399/asm.tb.ex2.t69980417
EISBN: 978-1-62708-342-3
... of the direct and indirect extrusion tools for indirect shape forming Table 7.5(a) Overview of the direct and indirect extrusion tools for indirect shape forming (a) Resistance heating in container holder. Source: Groos Overview of the direct and indirect extrusion tools for indirect...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2006
DOI: 10.31399/asm.tb.ex2.t69980001
EISBN: 978-1-62708-342-3
...Abstract Abstract This chapter provides an overview of the basic principles and historic development of metal extrusion processes. It starts by illustrating the two major process categories: direct extrusion and indirect extrusion. It then briefly defines hydrostatic extrusion and the conform...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2000
DOI: 10.31399/asm.tb.aet.t68260001
EISBN: 978-1-62708-336-2
...Abstract Abstract This chapter discusses the basic differences between direct and indirect extrusion, the application of plastic theory, the significance of strain and strain rate, friction, and pressure, and factors such as alloy flow stress and extrusion ratio, which influence the quality...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2000
DOI: 10.31399/asm.tb.aet.t68260055
EISBN: 978-1-62708-336-2
.... Laue K. and Stenger H. , Extrusion , American Society for Metals , 1981 4. Larson W.F. and Bland R.A. , Developments in Indirect Extrusion Presses , Light Met. Age , 1977 5. Berezhnoy V.L. , Extrusion with Active Friction Forces as an Innovation in Light...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2006
DOI: 10.31399/asm.tb.ex2.9781627083423
EISBN: 978-1-62708-342-3
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2006
DOI: 10.31399/asm.tb.ex2.t69980195
EISBN: 978-1-62708-342-3
... alloys are sometimes extruded on old vertical indirect extrusion presses over mandrels and charged with liquid metal. These extrusion presses can have loads between 5000 and 15,000 kN. Cable sheathing with lead alloys is carried out on special cable sheathing presses as shown in Table 5.1 (see...
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
... produce very complex sections with mirror-surface finishes and close dimensional tolerances that are considered to be net extrusions. There are basically two methods of hot extruding materials without lubrication: (1) forward, or direct, extrusion; and (2) backward, or indirect, extrusion ( Fig. 16.18...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2000
DOI: 10.31399/asm.tb.aet.t68260087
EISBN: 978-1-62708-336-2
...(98)00210-5 Direct Extrusion Indirect Extrusion Die design and die making are the most important and demanding aspects of the entire extrusion process. Die design is influenced by many factors including press procedure and maintenance, understanding of the section or profile and its...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2000
DOI: 10.31399/asm.tb.aet.t68260119
EISBN: 978-1-62708-336-2
... is shown in Fig. 14 . AirSlip casting technology offers an important advantage to produce both small and large diameter billets. The shallow liquation (oxide) zone on the billet outer surface means that less material needs to be scalped on an indirect extrusion billet. The inverse segregation zone...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2000
DOI: 10.31399/asm.tb.aet.t68260187
EISBN: 978-1-62708-336-2
... and the die holder should be at a minimum to ensure maximum strength Fig. 15 Typical insert die with backer and recommended insert details. Source: Ref 22 Like regular aluminum alloys, direct or indirect extrusion processes are used to extrude aluminum-base MMCs. Because the flow stress...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2006
DOI: 10.31399/asm.tb.ex2.t69980141
EISBN: 978-1-62708-342-3
... in the production of aluminum hollow sections. (a) Meeting under the leg. (b) Breaking apart. (c) Clean longitudinal weld [ Ake 92 ] Fig. 4.55 Extrusion weld in aluminum. (a) Different etchant attack. (b) Full recrystallization across the weld [ Ake 92 ] Fig. 4.53 Cracked surface of a CuZn28Sn...
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
... methods, 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...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smfpa.t53500157
EISBN: 978-1-62708-317-1
... Rosen H. , Schwarz S. , Birkert A. , and Schneider S. , Hydroforming for the Automobile Industry , Hydroforming of Tubes, Extrusions and Sheet Metals , Vol 2 , Siegert K. , Ed., IFU-Stuttgart , 2001 , p 135 – 157 8.2 Altan T. , Oh S. , and Gegel H.L...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780164
EISBN: 978-1-62708-281-5
..., although the final change may eventually be greater. Resistivity or conductivity can be used to predict, indirectly, the low-frequency dielectric breakdown and dissipation factor properties of some materials. Resistivity or conductivity is often used as an indirect measure of moisture content, degree...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060117
EISBN: 978-1-62708-261-7
... region. The main difference is that extrusion involves either pushing the workpiece through the die ( direct extrusion ) or pushing a die over a stationary workpiece ( indirect extrusion ). Extrusion dies and profiles can be more complex than the reduced profiles generated by drawing. Drawing also...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.tpmpa.t54480225
EISBN: 978-1-62708-318-8
... Blank for processing in the ring mill is first pierced (blank piercing). Fig. 10.10 Dog-boning operation for preparing a blank for the ring mill Fig. 10.11 Extruded ring blank. Ring blanks can be made by indirect, or back, extrusion. Fig. 10.12 Ring roller setup to produce...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780105
EISBN: 978-1-62708-281-5
... Standards , American Society for Testing and Materials 2. “ Specification for Nylon Injection Molding and Extrusion of Materials ,” D789-98, Plastics (I) , Vol 8.01 , Annual Book of ASTM Standards , American Society for Testing and Materials 3. “ Recommended Practice for Determining...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.caaa.t67870191
EISBN: 978-1-62708-299-0
... Corrosion state and indirect indication of rate Fast Probe or plant in general Electrolyte General or localized Normally relatively easy, but requires knowledge of corrosion. Can need expert Relatively simple Galvanic measurements (zero-resistance ammeter) Instantaneous Corrosion state...