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hot hydrostatic extrusion

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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 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...
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...
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
... types of hot extrusion are nonlubricated, lubricated, and hydrostatic ( Fig. 16.17 ). In nonlubricated hot extrusion, the material flows by internal shear, and a dead-metal zone is formed in front of the extrusion die. Lubricated extrusion, as the name implies, uses a suitable lubricant, usually glass...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040067
EISBN: 978-1-62708-300-3
... to 0.3 in hot forming of titanium and high-temperature alloys with glass lubricants. m = 0.7 to 1.0 when no lubricant is used, e.g., in hot rolling of plates or slabs and in nonlubricated extrusion of aluminum alloys. There are numerous parameters that influence the friction and lubrication...
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
..., lubricated, and hydrostatic ( Fig. 32 ). As the name implies, the nonlubricated hot extrusion method uses no lubrication on the billet, container, and die. When used with ductile metals, it can produce very complex sections with mirror surface finishes and close dimensional tolerances. Generally, aluminum...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2006
DOI: 10.31399/asm.tb.ex2.t69980195
EISBN: 978-1-62708-342-3
...Abstract Abstract Compared with other deformation processes used to produce semifinished products, the hot-working extrusion process has the advantage of applying pure compressive forces in all three force directions, enhancing workability. The available variations in the extrusion process...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.tpmpa.t54480207
EISBN: 978-1-62708-318-8
.... Cold extrusion of titanium including hydrostatic extrusion has been performed, but it is not a commercial process. Hot extrusion is used to produce long sections. Shapes can also be made by rolling, but the process is practical only if sufficient quantities are produced to justify the high cost...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2020
DOI: 10.31399/asm.tb.bpapp.t59290111
EISBN: 978-1-62708-319-5
...–10,000 Low >3 >0.12 Slow, moderate tolerances, flexible mold Die compaction 0.1–4000 Limited to pressing direction >2 >0.08 Very productive, fast forming, hard tooling Extrusion 10–1000 Long, constant cross section 1–10 0.04–0.4 Very productive, hard die Injection...
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.t69980141
EISBN: 978-1-62708-342-3
... cracking, depending on the alloy system. The hot cracks usually form in the center of extrusion billets. Cold cracks, on the other hand, can occur over the full cross section. Alloys of the type AlMgSi are sensitive to hot cracking, whereas cold cracks are more likely to develop in AlCuMg and AlZnMgCu...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030338
EISBN: 978-1-62708-282-2
... Differential Cell Corrosion Microbiologically Influenced Corrosion Stray Current Corrosion Stress-Corrosion Cracking Prevention and Mitigation of Corrosion and SCC Detection of Corrosion and SCC Assessment and Repair of Corrosion and SCC Stages of SCC Conditions for SCC Hydrostatic...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2013
DOI: 10.31399/asm.tb.mfub.t53740373
EISBN: 978-1-62708-308-9
... formation due to sintering. The spheres (33 μm diam) were sintered at 1030 °C for 30 min in vacuum. Courtesy of Randall M. German, The Pennsylvania State University. Source: Ref 11 Fig. 26 Schematic of the metal injection molding process. Source: Ref 5 Fig. 27 Hot extrusion methods...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230295
EISBN: 978-1-62708-298-3
... B.D. , Meyer G.E. , Uy J.C. , Fiorentino R.F. , and Sabroff A.M. , 1970 . “ Prototype Production Process for the Fabrication of Wire and Tubing by Hydrostatic Extrusion Drawing ,” Report AFML TR-70-82, Battelle Memorial Institute , Columbus, OH Sawyer C.B. , Beaver...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230267
EISBN: 978-1-62708-298-3
..., Nuclear Metals Inc. , West Concord, MA Reeves G.L. , and Keeley R.L. , 1961 . “ The Pressureless Sintering of Beryllium Powder to Billets for Hot Extrusion ,” Paper 11, Institute of Metals Conference on the Metallurgy of Beryllium ( London ) Siergiej J.M. , 1965...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2007
DOI: 10.31399/asm.tb.pmsspmp.t52000039
EISBN: 978-1-62708-312-6
... rigid die compaction, metal injection molding, extrusion, and hot isostatic pressing. It explains where each process is used and how processing parameters, such as temperature and pressure, and powder characteristics, such as particle size and shape, influence the quality of manufactured parts...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2020
DOI: 10.31399/asm.tb.bpapp.t59290067
EISBN: 978-1-62708-319-5
... Binder = ammonium polyacrylate + polyacrylate emulsion (4 wt%) Dispersant = ammonium hydroxide (trace, adjust pH to 8.2) Solvent = water + glycerin (8:1 ratio, 96 wt%) Binders for injection molding and extrusion Table 4.3 Binders for injection molding and extrusion Example...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.tb.tt2.t51060209
EISBN: 978-1-62708-355-3
... development of tensile strains by employing special dies for deforming under a strain state that more nearly approaches hydrostatic compression (e.g., extrusion). It should be emphasized that the hot tensile test reflects the inherent hot ductility of a material, that is, its natural ability to deform...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230209
EISBN: 978-1-62708-298-3
... of chemical composition, impurities, and grain size and the use of hydrostatic testing. beryllium creep properties fatigue properties fracture toughness tensile properties THE EFFECT of the many variables of the material, in the processing and in testing (such as temperature, grain size...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.9781627083003
EISBN: 978-1-62708-300-3
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 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...