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forging machines

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040107
EISBN: 978-1-62708-300-3
...Abstract Abstract Forging machines vary based on factors such as the rate at which energy is applied to the workpiece and the means by which it is controlled. Each type has distinct advantages and disadvantages, depending on lot size, workpiece complexity, dimensional tolerances, and the alloy...
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 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...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040319
EISBN: 978-1-62708-300-3
...Abstract Abstract This chapter defines near-net shape forging as the process of forging parts close to their final dimensions such that little machining or only grinding is required as a final step. It then describes the causes of dimensional variations in forging, including die deflection...
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.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
... in roll forging. (b) Overhang-type roll forger that uses fully cylindrical dies. Source: Ref 10 Fig. 19 Three types of machines for high-energy-rate forging. (a) Ram-and-inner-frame machine. (b) Two-ram machine. (c) Controlled-energy-flow machine. Triggering and expansion of gas in the firing...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040115
EISBN: 978-1-62708-300-3
... conditions, and it determines the rate of production. The requirements of a given forging process must be compatible with the load, energy, time, and accuracy characteristics of a given forging machine. There are basically three types of presses: hydraulic, mechanical, and screw presses. These machines...
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
... themselves to cold rolling thin strip and foil to very close tolerances. Fig. 9.8 German Fabrication Machines’ radial precision forging machine. Courtesy of Timet Fig. 9.9 Two-high rolling mill. This type of mill lends itself to rolling titanium sheet and plate. Courtesy of Timet...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040007
EISBN: 978-1-62708-300-3
... properties and reliability than do those manufactured by casting or machining. Forging is an experience-oriented technology. Throughout the years, a great deal of know-how and experience has been accumulated in this field, largely by trial-and-error methods. Nevertheless, the forging industry has been...
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
... proprietary rotary forging machines) Ring rolling Two or more of these methods used in sequence The die forging categories can be subdivided into: Open-die forgings Open-die forgings formed with the aid of plugs and rings to impart certain shapes Closed-die blocker-type forgings...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060117
EISBN: 978-1-62708-261-7
... costs relative to machining. Hobbing A die making process using a hardened (58 to 62 HRC) punch that is pressed into an annealed, soft-die steel block that is hardened after the cavity has been produced. Major examples are coining dies and dies for hot and cold forging of knives, spoons, forks...
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 various materials and the basic requirements for cold forging dies. The chapter also covers die manufacturing processes, such as high-speed and hard machining, electrodischarge machining, and hobbing, and the use of surface treatments. die materials die manufacturing 21.1 Introduction 21.2...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2008
DOI: 10.31399/asm.tb.fahtsc.t51130133
EISBN: 978-1-62708-284-6
... of the crankshaft. The nature of the ready-for-assembly finish forging design for the incrementally forged crankshafts includes locations where material is provided for machining along with selected as-forged surfaces. During the forging of the flanges, there had been cases of small amounts of underfill...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040059
EISBN: 978-1-62708-300-3
... of forging equipment [ Altan et al., 1973 ]. These curves illustrate that, due to strain rate and temperature effects, for the same forging process, different forging loads and energies are required by different machines. For the hammer, the forging load is initially higher due to strain-rate effects...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230295
EISBN: 978-1-62708-298-3
...Abstract Abstract The vast majority of beryllium products are manufactured from blocks, forms, or billets of compacted powder that are machined or worked into shape. This chapter describes the metalworking processes used, including rolling, forming, forging, extrusion, drawing, and spinning...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2000
DOI: 10.31399/asm.tb.ttg2.t61120039
EISBN: 978-1-62708-269-3
.... Fig. 6.3 VAR furnace for melting titanium and centrifugal table for casting molten metal into the mold Fig. 6.7 Cost comparison for one titanium alloy aerospace design machined from blocks, forgings, and precision investment cast Fig. 6.4 Brake torque tubes, landing arrestor hook...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040211
EISBN: 978-1-62708-300-3
... ; and Altan et al., 1983 ]. These operations are usually performed in mechanical or hydraulic presses, which are discussed in Chapter 10, “Principles of Forging Machines,” and Chapter 11, “Presses and Hammers for Cold and Hot Forging.” Several forming steps are used to produce a final part or relatively...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040295
EISBN: 978-1-62708-300-3
... Manufacturing , Aug 1993 . In forging, die failure can be a significant portion of the overall production cost. The dies that fail must be either repaired or replaced. The cost to replace a die includes the basic cost of the die, which encompasses the costs of material, machining, coating, and surface...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2005
DOI: 10.31399/asm.tb.gmpm.t51250129
EISBN: 978-1-62708-345-4
..., and relatively low accuracy of transmitted motion ( Ref 1 ). When the application involves higher values of one or more of these characteristics, forged or cut/machined gears are used. Table 1 lists the tolerances in terms of American Gear Manufacturers Association (AGMA) quality numbers for various gear...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.sap.t53000111
EISBN: 978-1-62708-313-3
...Abstract Abstract This chapter discusses the effect of composition on environmental resistance, machinability, and casting and forging, factors that are often considered when selecting a superalloy. environmental resistance materials selection superalloys THE EFFECT OF COMPOSITION...