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cogging

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Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280041
EISBN: 978-1-62708-267-9
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280339
EISBN: 978-1-62708-267-9
... of solidification of large ingots several feet (⅔ of a meter) in diameter to studies of aircraft gas turbine HPT airfoils, from cogging and forging to die filling and consolidation in P/M superalloys, process modeling has become an accepted tool. At this time, each modeling event is unique. Corporations...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2000
DOI: 10.31399/asm.tb.ttg2.t61120025
EISBN: 978-1-62708-269-3
... sufficient reduction to play a major role in establishing material properties. Reduction to Billet Generally, the first breakdown of production ingot is a press cogging operation done in the beta temperature range. However, working in the alpha region below the beta transus is essential to produce...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280365
EISBN: 978-1-62708-267-9
... , American Institute of Mining, Metallurgical and Petroleum Engineers , 1981 , p 603 – 619 Processing: Modeling • Antolovich B.F. and Evans M.D. , Predicting Grain Size Evolution of Udimet Alloy 718 During the “Cogging” Process Through Use of Numerical Analysis , Superalloys 2000...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060117
EISBN: 978-1-62708-261-7
...). Ingots are hot worked chiefly by forging, rolling, and extrusion. Cogging refers to the successive deformation of a round section along its length using an open-die forge ( Fig. 6.10 ). The process converts the rough cast structure to a recrystallized wrought structure (illustrated in Fig. 6.9...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240563
EISBN: 978-1-62708-251-8
... in Fig. 30.7 . Production starts with ingot melting, which can involve as many as three separate melting processes. Ingot melting is followed by homogenization and then cogging to break down the as-cast structure. Final forging is then used to produce the desired shape and refine the microstructure...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.9781627082679
EISBN: 978-1-62708-267-9
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2008
DOI: 10.31399/asm.tb.fahtsc.t51130133
EISBN: 978-1-62708-284-6
... to provide material to fill intersecting elements. Also, these types of problems are analyzed by a technique referred to as streamlining. The series of shapes are tracked backward from the finish shape to blocker and preblocker shapes to the cogged, rolled, or upset piece. A series of “part-way” downs...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2010
DOI: 10.31399/asm.tb.hss.t52790059
EISBN: 978-1-62708-356-0
.... It should be cogged down by easy stages, care being taken that the temperature does not fall below 1,650° F. If the steel is worked below these temperatures, it is liable to be ruptured or broken under the heavy blows of the hammer. A noticeable feature of this operation is the very inappreciable amount...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280135
EISBN: 978-1-62708-267-9
... hardened or not, generally require the application of heat for some period of time for purposes of preparing solid material for a subsequent processing step (ingot cogging, component forging, etc.). In addition, some chemical processing, such as coating, requires that heat and resultant high temperatures...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2010
DOI: 10.31399/asm.tb.hss.t52790033
EISBN: 978-1-62708-356-0
...% silicon (as noted by Dr. K.C. Barraclough in his account of the 75th anniversary of Brearley’s discovery). This was the first commercial cast of what came to be called stainless steel. An ingot was forge cogged to 3 inches square and rolled to a 1 1 2 inch diameter bar. Twelve sample gun...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240527
EISBN: 978-1-62708-251-8
..., the first breakdown of production ingot is a press cogging operation done in the beta-temperature range. Modern processes use substantial amounts of working below the beta transus to produce billets with refined structures. These processes are carried out at temperatures high in the alpha-beta region...
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
... are alike. This chapter focuses on wrought processing by forging, but the control of microstructure, shape and properties by rolling, extrusion, and so on is vitally important and has the same technical basis. Melting technology and the primary conversion process of cogging are playing an ever-increasing...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1999
DOI: 10.31399/asm.tb.cmp.t66770011
EISBN: 978-1-62708-337-9
... hardenability and is recommended for use in “driving pinions and high stressed cog wheels” ( Ref 25 ). The illustration indicates that even with a section equivalent to a 50 mm diameter bar, some bainite will form if the manganese and chromium are reduced to half of their original amount as a result of internal...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2013
DOI: 10.31399/asm.tb.mfub.t53740001
EISBN: 978-1-62708-308-9
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2001
DOI: 10.31399/asm.tb.secwr.t68350095
EISBN: 978-1-62708-315-7
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2012
DOI: 10.31399/asm.tb.lmub.t53550223
EISBN: 978-1-62708-307-2
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
... and ostensibly simple problem of the axial upsetting of a cylinder, and then these principles will be applied to other processes. 11.1 Open-die Forging Open-die forging involves large workpiece strains and simple tooling such as flat platens, punches or saddles. Cogging is the process of reducing...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2000
DOI: 10.31399/asm.tb.ttg2.9781627082693
EISBN: 978-1-62708-269-3
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.lmcs.t66560427
EISBN: 978-1-62708-291-4