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semisolid metalworking

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Series: ASM Technical Books
Publisher: ASM International
Published: 30 September 2023
DOI: 10.31399/asm.tb.stmflw.t59390100
EISBN: 978-1-62708-459-8
... Abstract This chapter describes the properties and attributes of various classes of metalworking lubricants, including mineral oils; natural oils, fats, derivatives, and soaps; synthetic fluids (olefins, esters, polyglycols, ionic liquids); compounded lubricants (oils, greases, fats); aqueous...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2021
DOI: 10.31399/asm.tb.tpsfwea.t59300391
EISBN: 978-1-62708-323-2
... Abstract This chapter covers the tribological properties of different types of oil, greases, solid lubricants, and metalworking and traction fluids. It explains how lubricants are made, how they work, and how they are applied and tested. It also discusses the fundamentals of lubrication...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 May 2018
DOI: 10.31399/asm.tb.hma.t59250001
EISBN: 978-1-62708-287-7
... to the ascendance of Abraham Darby III. Historians have seriously questioned whether or not England could have achieved its success in the Industrial Revolution without being, at the same time, a successful metalworking nation. We will never know because the Darbys and the little iron bridge at Coalbrookdale thrust...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 September 2023
DOI: 10.31399/asm.tb.stmflw.t59390064
EISBN: 978-1-62708-459-8
... before the properties of the base oil become evident. This helps a grease to build up a thicker initial film even in an EHD contact, especially at low speeds – a property that is valuable also in metalworking. On prolonged shearing and at increased shear rates, the properties of the base oil dominate...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060085
EISBN: 978-1-62708-261-7
... of complex shapes or thin sections, the alloys with compositions near eutectic points are often preferable. Nondendritic Solidification for Semisolid Processing Although nearly all commercial alloys solidify dendritically with either a columnar or an equiaxed dendritic structure, an important...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 September 2023
DOI: 10.31399/asm.tb.stmflw.9781627084598
EISBN: 978-1-62708-459-8
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 September 2023
DOI: 10.31399/asm.tb.stmflw.t59390019
EISBN: 978-1-62708-459-8
... Plastic deformation in the presence of a lubricant film results in surface roughening or smoothening, and irrespective of whether the lubricant is liquid, semisolid, or solid. Roughening involves the following: When the liquid film is thick enough to ensure complete die-workpiece separation (see...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 September 2023
DOI: 10.31399/asm.tb.stmflw.t59390325
EISBN: 978-1-62708-459-8
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 1998
DOI: 10.31399/asm.tb.ts5.t65900001
EISBN: 978-1-62708-358-4
... steel objects have been documented, but their microstructures are pearlitic, indicating that quenching was not yet mastered. The following quotation from Homer’s Odyssey ( Ref 8 ), relating to the blinding of the giant Cyclops by Odysseus and his men, shows that quenching and metalworking must have...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 September 2023
DOI: 10.31399/asm.tb.stmflw.t59390241
EISBN: 978-1-62708-459-8
... minimum friction. This so-called wet drawing practice is typical of all nonferrous metals and of steel wires less than 0.5 to 1 mm in diameter. A transition between the two techniques is sometimes employed, particularly in low-speed drawing of bar and tube: a high-viscosity liquid or semisolid...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610585
EISBN: 978-1-62708-303-4
... that are trapped by the solidifying metal as they try to escape from the liquid and semisolid metal Small crevices in the mold walls, which cause the metal to tear during the stripping operation Spatter during pouring, which produces globs of metal frozen on the mold walls because of the great difference...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 September 2023
DOI: 10.31399/asm.tb.stmflw.t59390284
EISBN: 978-1-62708-459-8
... of fluid have to be supplied and drained. Alternatively, a thick film of semisolid lubricant can be applied to the billet surface, which can be loaded as in usual cold extrusion but into a preheated container in which the lubricant melts to become the pressurized medium ( Fig. 10.12c ). If the clearance...
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
... pressure. Optional secondary processing is often used to obtain special properties or enhanced precision. The P/M process offers a number of advantages over other metalworking processes, including: Elimination or reduction of machining (near-net or net shape parts) High production rates...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2001
DOI: 10.31399/asm.tb.secwr.t68350043
EISBN: 978-1-62708-315-7
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 September 2023
DOI: 10.31399/asm.tb.stmflw.t59390389
EISBN: 978-1-62708-459-8
... Abstract This chapter covers the mechanics and tribology of sheet metalworking processes, including shearing, bending, spinning, stretching, deep drawing, ironing, and hydroforming. It explains how to determine friction, wear, and lubrication needs based on process forces, temperatures...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2012
DOI: 10.31399/asm.tb.lmub.t53550033
EISBN: 978-1-62708-307-2
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2001
DOI: 10.31399/asm.tb.aub.9781627082976
EISBN: 978-1-62708-297-6