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ring rolling

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.tpmpa.t54480225
EISBN: 978-1-62708-318-8
... Abstract This chapter discusses the equipment and processes used to convert titanium billet and bar into useful shapes or more refined product forms. These secondary working operations include open-die, closed-die, hot-die and isothermal forging as well as ring rolling and extruding...
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
..., 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 and drawing...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040141
EISBN: 978-1-62708-300-3
... Abstract Prior to forging, it is often necessary to preform billet stock to achieve adequate material distribution. This chapter discusses the equipment used for such operations, including transverse rolling machines, electric upsetters, ring-rolling mills, horizontal presses, and rotary...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720365
EISBN: 978-1-62708-305-8
... of the lap (if present). The condition can be eliminated with corrections in blocker die design. Discontinuities in forgings produced by ring-rolling can either be inherited from the ingot or mechanically induced during forging, much the same as for forgings produced by hammers or presses. Inherited...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280091
EISBN: 978-1-62708-267-9
... and in subsequent heat treatment of the component. Forged superalloy components are produced by: Die forging Upsetting Extrusion forging Roll forging Swaging (or versions using proprietary rotary forging machines) Ring rolling Two or more of these methods used in sequence The die...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230295
EISBN: 978-1-62708-298-3
... are obtained with presses. Related processes include radial forging, ring rolling, roll forging, rotary forging, and swaging. (Swaging refers to a progressive reduction in cross-sectional area, and corresponding lengthening, by the rapid impact of a revolving pair of mating dies in a swaging machine...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040319
EISBN: 978-1-62708-300-3
... , Vol. 98 , 2000 , p 155 – 161 . 10.1016/S0924-0136(99)00192-2 [Husmann, 1999] Husmann J. , “ High Speed Ring Rolling and Closed-Die Rolling, ” presented at the FIA Conference ( Reno, NV ), May 1999 . [Ishinaga, 1996] Ishinaga N. , “ An Advanced Press Design for Cold...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.tb.msisep.t59220353
EISBN: 978-1-62708-259-4
..., qualification should not be overlooked, since the calculated deformation may be misleading, due to heterogeneous distribution of deformation in the part, for instance, in the case for rolled rings ( Fig. 11.39 and 11.40 ). Fig. 11.38 The evolution of the mechanical properties of a Ni-Cr-Mo-V steel...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040107
EISBN: 978-1-62708-300-3
... and shapes Machines for profile rolling from strip Ring rolling machines Thread rolling and surface rolling machines Magnetic and explosive forming machines Draw benches for tube and rod; wire and rod drawing machines Machines for pressing-type operations, i.e., presses Among those...
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 August 2005
DOI: 10.31399/asm.tb.horfi.t51180061
EISBN: 978-1-62708-256-3
... to NASA and accepted. And two, because the specific physical cause for the failure had been identified, and examination of other turbopumps revealed no cracks in similar components, the problem was not deemed systemic to the fleet. Another example concerns flaws in large 7050 aluminum ring-rolled...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2021
DOI: 10.31399/asm.tb.tpsfwea.t59300271
EISBN: 978-1-62708-323-2
.... These strands are guided by tensioning devices to make tows (bundles of strands), and these strings go all over the factory at high speeds and tensions. They are guided by alumina or other rings and shapes of all types that can last for years, while metal devices doing the same job may cut through in days...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280117
EISBN: 978-1-62708-267-9
... the solidus of the alloy. The improvement is attributed to the elimination of grain boundaries, which are coincident with PPBs. As a result, conventional forging and ring rolling of P/M billet is deemed practical. Powder metallurgy forging also exploits the improved forgeability deriving from the higher...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040025
EISBN: 978-1-62708-300-3
... Abstract This chapter explains how to determine flow stress and forgeability using data from tensile tests, compression tests, ring tests, and torsion tests. It describes sample preparation, tooling and equipment, test procedures, error sources, and data plotting techniques. It also provides...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.tb.ems.t53730121
EISBN: 978-1-62708-283-9
... is composed of hollow cells, which trees use to transport sap. Annual growth rings are evident in the cross section of a tree trunk ( Fig. 11.1 ). They are easily seen because faster growth in the spring results in larger cells ( Fig. 11.2 ). The percentage of growth rings in the sapwood, the portion...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2021
DOI: 10.31399/asm.tb.tpsfwea.t59300121
EISBN: 978-1-62708-323-2
... on rotors and the like have to pass about 40 screening tests before they can be actually used in an engine. The bearings similarly are tested, but the oils must withstand bench tests at an elevated temperature and 10,000 rpm in a rolling element bearing with heavy contact stresses, near the compressive...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smff.9781627083164
EISBN: 978-1-62708-316-4
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.caaa.t67870265
EISBN: 978-1-62708-299-0
... Rolled or cold-finished rod and bar 1–3 Extruded rod, bar, profiles (shapes), and tube 1–3 Drawn tube ½–3 Die or ring forgings and rolled rings 1–5 Stress relieved by stretching includes the following. T x 51 applies specifically to plate, to rolled or cold-finished rod...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270197
EISBN: 978-1-62708-301-0
... Abstract One of the rotor bearings in an electric motor failed, producing excessive vibrate. The bearing was removed and disassembled, revealing craters and bruises on the inner ring raceway and balls along with evidence of melting and burning of metal. Scanning electron microscopy revealed...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1988
DOI: 10.31399/asm.tb.eihdca.t65220253
EISBN: 978-1-62708-341-6
... or pneumatic charge cylinders, walking beams, and drive rolls Discharging: extractor forks, power rolls, vee rolls, gravity chutes, and robots. Fig. 10.5 Typical methods of material handling in automated induction heating operations Source: TOCCO Brochure DB-2032-8-80, Ferro Corp. In most...