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hydrostatic extrusion

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Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004007
EISBN: 978-1-62708-185-6
... Abstract This article begins with a general review of the effects of changes in stress state on processing of materials. It describes the fundamentals of hydrostatic extrusion and reviews the various issues and benefits associated with hydrostatic extrusion. The article discusses...
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Published: 01 January 2005
Fig. 4 Comparison of conventional extrusion and hydrostatic extrusion. Source: Ref 28 , 66 More
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Published: 30 September 2015
Fig. 16 Comparison of load profiles of simple hydrostatic extrusion and conventional extrusion. (a) Conventional. (b) Hydrostatic with conical die More
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Published: 30 November 2018
Fig. 6 Schematics of (a) conventional and (b) hydrostatic extrusion More
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Published: 01 January 2005
Fig. 5 Coextrusion billets for hydrostatic extrusion. (a) Insertion method. (b) Casting method. (c) Multifilament billet. Based on Ref 16 More
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Published: 01 January 2005
Fig. 13 The effect of die angle on the success of bimetal hydrostatic extrusion. (a) A large die angle causes core fracture, and (b) a small die angle avoids this failure in copper-core/solder clad composites. (c) A large die angle causes core fracture, and (d) a small die angle avoids More
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Published: 01 January 2005
Fig. 16 Processing map and flow behavior during hydrostatic extrusion. (a) A typical processing map. (b) Examples of core fracture. (c) Examples of sleeve failure. (d) Example of sound flow with proportional deformation. Based on Ref 48 More
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006385
EISBN: 978-1-62708-192-4
... Abstract This article discusses two basic forms of extrusion: cold and hot. It provides information on three types of extrusion processes, namely, direct extrusion, reverse extrusion, and hydrostatic extrusion. The article also discusses the mechanics, analysis, tooling and die design...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004013
EISBN: 978-1-62708-185-6
... formed. Coextrusion can also be carried out using hydrostatic pressure, as was first demonstrated by the ASEA Quintus process used for the commercial production of bimetallic wire for electrical conductors ( Ref 5 , 6 ). Further discussions on extrusion equipment is provided in the articles “Cold...
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Published: 01 January 2005
Fig. 1 Schematic illustrations showing the major difference between (a) nonlubricated extrusion, (b) lubricated extrusion, and (c) hydrostatic extrusion processes. Source: Ref 1 More
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Published: 31 December 2017
Fig. 1 Types of extrusion processes. (a) Direct extrusion. (b) Reverse extrusion. (c) Hydrostatic extrusion. Source: Ref 1 . S. Kalpakjian and S. Schmid, Manufacturing Processes for Engineering Materials , 6th ed., ©2017. Reprinted by permission of Pearson Education, Inc., New York, New York More
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Published: 01 December 1998
Fig. 37 Schematics of the (a) nonlubricated, (b) lubricated, and (c) hydrostatic extrusion processes More
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001110
EISBN: 978-1-62708-162-7
...-temperature hydrostatic extrusion that minimizes the mechanical dissimilarities Addition of the aluminum stabilizer, by extrusion cladding or soldering, after the NbTi alloy has been coprocessed in a copper matrix Extrusion and cladding techniques will be discussed in the section “Processing...
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
... pressures can be attributed to the force required in moving the billet through the container against the frictional force. Fig. 5 Variation of load or pressure with ram travel for direct and indirect extrusion Another less-common variation of the direct extrusion process is hydrostatic...
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
... shapes extrusion dies extrusion speed hot extrusion hydrostatic hot extrusion indirect extrusion lubricant lubricated hot extrusion nonlubricated hot extrusion presses HOT EXTRUSION is a process in which wrought parts are formed by forcing a heated billet through a shaped die opening...
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Published: 01 January 1990
at ambient temperature in a conventional extrusion press converted for dual hydrostatic/conventional use. Courtesy of Supercon, Inc. More
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Published: 01 January 2005
Fig. 10 Processing maps showing deformation modes during hydrostatic coextrusion. The ordinate is the friction factor m ′ at the core/clad interface, and the abscissa is the ratio of the yield strengths of the core and the clad (based on Ref 30 ). (a) For closed-end extrusion. (b) For open More
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006085
EISBN: 978-1-62708-175-7
..., this will be the minimum value for R , the extrusion reduction ratio. Fig. 15 Stress distribution along embedded fiber caused by uniaxial loading Hydrostatic Extrusion Hydrostatic extrusion is a variant of the process that involves extrusion by the action of a liquid medium surrounding the billet being...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003258
EISBN: 978-1-62708-176-4
... subjected to high levels of triaxial (hydrostatic) tensile stresses. Center-burst (chevron) cracking of solid rods in drawing and extrusion, plane-strain drawing of sheet or plate, and tube drawing or spinning are due to the high hydrostatic tensile stress component at the centerline of the workpiece during...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0009004
EISBN: 978-1-62708-185-6
... in the material during processing. In the spectrum of processes (extrusion, rolling, forging, and wire drawing), the average hydrostatic stress becomes increasingly tensile, and the strain to fracture progressively decreases. Within each of these processes, however, the stress and strain states can be considered...