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nonlubricated hot extrusion

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Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004006
EISBN: 978-1-62708-185-6
...Abstract Abstract Hot extrusion is a process in which wrought parts are formed by forcing a heated billet through a shaped die opening. This article discusses nonlubricated and lubricated hot extrusion. The two nonlubricated hot extrusion methods are forward or direct extrusion and backward...
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006534
EISBN: 978-1-62708-207-5
... finds its way into the container. In nonlubricated hot extrusion of aluminum alloys, a flat-faced (shear-faced) die is often used. The main problem in extrusion with sticking friction is the die, designed and made so that optimal material flow is ensured and a defect-free extrusion is produced...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003971
EISBN: 978-1-62708-185-6
... Roll forging Cross rolling Surface rolling Shear forming Tube reducing Radial roll forming Extrusion Nonlubricated hot extrusion Lubricated direct hot extrusion Hydrostatic extrusion Co-extrusion Equal channel angular extrusion Drawing Drawing Drawing...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003183
EISBN: 978-1-62708-199-3
... or reverse extrusion. Lack of flash at the parting line decreases stress-corrosion cracking in forging alloys susceptible to this type of failure. Multidirectional hot working, characteristic of this process, decreases adverse directional effects on mechanical properties. Die Design and Materials...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0009007
EISBN: 978-1-62708-185-6
...(a) ). Fig. 4 Deformation patterns in nonlubricated, non-isothermal hot forging. (a) Initial barreling. (b) Barreling and folding over. (c) Beginning of end face expansion. Source: 5 As deformation proceeds, severe inhomogeneity develops, and the growth of the end faces is attributed entirely...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004017
EISBN: 978-1-62708-185-6
... a metal can be shaped through plastic deformation. This article restricts its consideration to the shaping of materials by such bulk deformation processes as forging, extrusion, and rolling. The evaluation of workability of a material involves both the measurement of the resistance to deformation...
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006392
EISBN: 978-1-62708-192-4
...Abstract Abstract This article discusses the classification of wear based on the presence or absence of effective lubricants, namely, lubricated and nonlubricated wear. Variations in ambient temperature, atmosphere, load, and sliding speed, as well as variations in material bulk composition...
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006431
EISBN: 978-1-62708-192-4
... ) is a very common ceramic used in tribological applications. It is produced via the sintering of the powder at high temperature, using sintering aids such as MgO or Y 2 O 3 . To achieve the highest density and the best mechanical properties, hot isostatic pressing (HIP) is used. The best HIP material...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003009
EISBN: 978-1-62708-200-6
...-performance resins, which would include fluoropolymers, ionomers, polybenzimidazole, and ultrahigh molecular weight polyethylenes. Most fluoropolymers are not melt processed, even though most other thermoplastics, including engineering grades, are typically melt processed by injection molding, extrusion...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001308
EISBN: 978-1-62708-170-2
... the work in a nonlubricating compound that contains abrasives. In most instances, media also are used to cushion the workpieces and increase the abrasive action. Synthetic detergents mixed with granite fines or limestone chips are usually preferred as the compound for deburring aluminum; aluminum oxide...
Series: ASM Handbook
Volume: 5A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v05a.a0005707
EISBN: 978-1-62708-171-9
... harden High stress, heavy impact Martensitic and high-speed steels Good combination of abrasion and impact resistance.Abrasion resistance increases with carbon and chromium content at expense of impact resistance. Nonlubricated metal-to-metal wear Nickel- and cobalt-base alloys Wear, corrosion...
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006517
EISBN: 978-1-62708-207-5
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.9781627081993
EISBN: 978-1-62708-199-3
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001264
EISBN: 978-1-62708-170-2
... and now is an established industrial process. Currently, hot acid hypophosphite-reduced baths are most frequently used to plate steel and other metals, whereas warm alkaline hypophosphite baths are used for plating plastics and nonmetals. Borohydride-reduced baths are also used to plate iron and copper...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001304
EISBN: 978-1-62708-170-2
... coatings, hot-dip coating processes, electrogalvanizing, electroplating, metal cladding, organic coatings, zinc-rich coatings, porcelain enameling, thermal spraying, hardfacing, vapor-deposited coatings, surface modification, and surface hardening via heat treatment. alloy steel cadmium plating...