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finishing forging dies

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040159
EISBN: 978-1-62708-300-3
... the requirements of various forging alloys, the influence of machine operating parameters, and production challenges related to lot tolerances and shape complexity. The chapter also covers the design of finisher dies, the prediction of forging stresses and loads, and the design of preform dies for steel, aluminum...
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
..., mandrel forging, ring forging, upsetting between flat or curved dies, drawing out Applications Forging ingots, large and bulky forgings, preforms for finished forgings Fig. 11 Four types of die sets commonly used in open-die forging. Source: Ref 10 Fig. 12 Closed-die forging...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2008
DOI: 10.31399/asm.tb.fahtsc.t51130133
EISBN: 978-1-62708-284-6
... the die angle to create more shear stress, enabling full flow to the wings Trim tear Forge material tore at trimline when forging was trimmed immediately following finish forging Introduce a delay time after forge and prior to trim, allowing the forge material to cool and gain strength Upset...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060117
EISBN: 978-1-62708-261-7
... under pressured N 2 atmosphere or in powder bed. (d) Low temperatures for liquid phase sintering. (e) Low temperatures for highly active powders Forging processes Table 6.2 Forging processes Forging Open-die forging Open dies are primarily used for the forging of simple...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040007
EISBN: 978-1-62708-300-3
... and Manufacturers Engineering Handbook, Desk Edition (1989) , 4th ed. , Society of Manufacturing Engineers , 1989 , p 15 - 8 . In forging, an initially simple part—a billet, for example—is plastically deformed between two tools (or dies) to obtain the desired final configuration. Thus, a simple part...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040141
EISBN: 978-1-62708-300-3
... of these machines may also be used for finish forging. The principle of forging rolls, or reducer rolls, is illustrated schematically in Fig. 12.1 . This machine is generally used for volume distribution in long and thin parts, prior to closed-die forging. A typical operation on reducer rolls, such as those...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040277
EISBN: 978-1-62708-300-3
... of die cavities. The ball nose allows the machining of complex curves and surfaces in the die cavity. Using an appropriate step-over distance and computer-aided tool-path generation, most cavities can be machined with acceptable surface finish. In manufacturing cold forging dies from tool steels...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2005
DOI: 10.31399/asm.tb.gmpm.t51250129
EISBN: 978-1-62708-345-4
...-die forging, closed-die forging ( Fig. 7 ), and hot upset forging. During the past thirty-five years there has been considerable research and development aimed at producing near-net or net-shape gears by precision forging. Today precision forged gears requiring little or no finish machining...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240279
EISBN: 978-1-62708-251-8
... forging can be carried out by using a single pair of dies or with multiple impression dies. Hammers or presses are used to apply the forces to the workpiece, which is usually heated to above its recrystallization temperature, although cold forging is also used to produce finished shapes. Fig. 16.10...
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 February 2005
DOI: 10.31399/asm.tb.chffa.t51040193
EISBN: 978-1-62708-300-3
... heating them to 2200 °F (1200 °C). Next, a billet is placed in the busting dies and upset ( Fig. 16.10a ). It is then transferred to a blocker die and forged ( Fig. 16.10b ) and finally transferred to and forged in a finisher die ( Fig. 16.10c ). During initial forging trials, buckling flow in the blocker...
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
... is, with modern practice, highly dependent on the billet structure present at the start of the forging cycle. Forming, while related to forging, usually does not require finished components to possess as much ductility, strength, or toughness as forged parts. Much less information is available on forming...
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 February 2005
DOI: 10.31399/asm.tb.chffa.t51040319
EISBN: 978-1-62708-300-3
... . [Yoshimura et al., 1997] Yoshimura H. , and Wang C.C. , “ Manufacturing of Dies for Precision Forging, ” Nichidai Corporation, JSTP International Seminar of Precision Forging ( Osaka, Japan ), March 31 to April 1, 1997 . [Yoshimura et al., 2000] Yoshimura H. , Wang X...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040257
EISBN: 978-1-62708-300-3
... 20.20(a) shows Ti-6Al-4V hot-die forged F-15 bearing supports weighing 46.5 lb (21.1 kg) forged in Astroloy dies at 1700 °F (925 °C). This part was forged in three stages: Preblock and block, with conventional forging processes Finish forging as doubles in Astroloy hot dies Figure 20.20...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.tpmpa.t54480207
EISBN: 978-1-62708-318-8
... Fig. 9.1 Titanium ingot at the start of press forging. Ingot breakdown is done in a press with open flat dies so that the deformation rate can be controlled more closely and the as-cast ingot structure can be worked with less danger of cracking. Fig. 9.6 Typical rolling mill designs used...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040295
EISBN: 978-1-62708-300-3
... or no finishing, thereby reducing manufacturing costs. In order to achieve both accuracy and complexity in a forged part, the dies must be produced with higher accuracy and tighter tolerances than the part to be forged. As a consequence, the manufacturing time for the dies increases considerably, making the dies...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2000
DOI: 10.31399/asm.tb.ttg2.t61120033
EISBN: 978-1-62708-269-3
... in the aerospace field; this forging is accomplished largely by use of dies. Titanium alloys are difficult to forge but less so than refractory metals and superalloys. The working history and forging parameters used in titanium alloy forging have a great impact on the microstructure and properties of the finished...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2008
DOI: 10.31399/asm.tb.fahtsc.t51130311
EISBN: 978-1-62708-284-6
... (a) Forging tools for production of automotive engine valves; the analyzed die was painted in blue. (b) Forged valve and, in detail, the grooves produced when using worn dies. (c) Three analyzed regions, marked “A”, “B” and “C”. “A” is the main wear region, but “B” is where a large amount of thermal fatigue...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230295
EISBN: 978-1-62708-298-3
...–6030-C0 • Hayes A.F. , 1969 . “ Production of Forged Beryllium Conical Structural Shapes ,” Wright Patterson Air Force Base, Air Force Materials Laboratory, Report TR-69-1 68, Ladish Co. , Cudahy, WI 10.21236/AD0858125 • Hovis V.M. , 1966 . “ Machining and Finishing Fine...