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hot upset forgings

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2013
DOI: 10.31399/asm.tb.mfub.t53740103
EISBN: 978-1-62708-308-9
... methods, 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...
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 hot forging failures Table 3 Factors in analysis of hot forging failures Preforge factors Raw material —chemistry, microstructure, mechanical properties, size, surface finish, and cleanliness Shape sequencing —shape nature, temperature, strain and strain rate, upset tooling, fuller...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040295
EISBN: 978-1-62708-300-3
... of Material Processing Technology , Vol. 140 , 2003 , p 43 – 48 . 10.1016/S0924-0136(03)00723-4 [Liou et al., 1988] Liou M. , and Hsiao H. , “ Prediction of Die Wear in High Speed Hot Upset Forging, ” Report No. ERC/NSM-88-33, Engineering Research Center for Net Shape Manufacturing...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060117
EISBN: 978-1-62708-261-7
... Forging Hot Upset Forging Cold Forging Coining Drawing and extrusion are based, respectively, on the pulling and pushing of sections through dies. In the drawing process, the cross-sectional area and/or shape of a rod, bar, tube, or wire is reduced by pulling it through a die...
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.t51040007
EISBN: 978-1-62708-300-3
..., copper alloys. Core forging, precision forging, cold and warm forging, P/M forging. Precision forgings, hollow forgings, fittings, elbows, tees, etc. Electro-upsetting is the hot forging process of gathering a large amount of material at one end of a round bar by heating the bar end...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040059
EISBN: 978-1-62708-300-3
...–1819 °F (560–990 °C); temperature range of the dies at the end of upsetting, 298–723 °F (145–385 °C). Often it is desirable to measure the temperatures at the die/material interface in hot forging operations. A thermocouple for measuring interface temperatures in hot forging must exhibit very...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040211
EISBN: 978-1-62708-300-3
...Abstract Abstract This chapter discusses the process of cold forging and its effect on various materials. It describes billet preparation and lubrication procedures, cold upsetting techniques, and the use of slab analysis for estimating cold forging loads. It likewise describes extrusion...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040141
EISBN: 978-1-62708-300-3
... sequence of a horizontal forging machine is illustrated in Fig. 12.15 for the upsetting process: (a) the hot end of the bar is placed into the stationary gripper die against a stop, (b) the moving gripper die closes and the stop retracts, (c) the heading tool begins to deform the bar, and (d) completes...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040091
EISBN: 978-1-62708-300-3
... methods, covering basic principles, implementation, and advantages and disadvantages in various applications. axisymmetric upsetting finite element method forging plane-strain slab method upperbound method 9.1 Introduction 9.2 Slab Method of Analysis 9.3 Upper Bound Method and Its...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040067
EISBN: 978-1-62708-300-3
... processes. The chapter also describes several test methods for evaluating lubricants and explains how to interpret associated test data. cold forging friction hot forging lubrication 7.1 Introduction 7.2 Lubrication Mechanisms in Metal Forming 7.3 Friction Laws and Their Validity...
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
... as a Science Some Forging Problems Process Modeling Isothermal Forging and Hot-Die Forging Ingot Composition and Microstructure Control Is Critical Aspects of Forgeability and Forging Reductions Process Control and Modeling Required Iron-Nickel-Base Superalloys Nickel-Base Superalloys...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040083
EISBN: 978-1-62708-300-3
... for forging simulation is the cylinder upset test as discussed in Chapter 4 because (a) during the test the deformation is done in a state of compressive stress, which represents well the true stress state of most forging processes and (b) the test can be done for a large strain. However, even...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040107
EISBN: 978-1-62708-300-3
.... However, in principle, most of the same relationships apply also in other hot forming processes such as hot extrusion and hot rolling. It is useful to consider forming load and energy as related to forming equipment. For a given material, a specific forming operation (such as closed-die forging...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290137
EISBN: 978-1-62708-306-5
... temperature), forge welding is typically conducted at temperatures in the range of 0.8 to 0.9 T m . The forge welding temperature is generally selected to be as high as possible with due consideration to avoiding such metallurgical problems as hot shortness, embrittlement, sensitization, and excessive grain...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.tpmpa.t54480225
EISBN: 978-1-62708-318-8
... symmetrical cylindrical or conical shapes. A preformed heavy-walled ring is heated for conventional forging and deformed between a driver and idler roll. Fig. 10.8 Fan blade forging sequence. From top to bottom: first upset, second upset, third upset, blocker, and finish Fig. 10.6 Effect...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040193
EISBN: 978-1-62708-300-3
... Laboratories , 1972 . [Brucelle et al., 1999] Brucelle O. , and Bernhart G. ,” Methodology for Service Life Increase of Hot Forging Tools, ” Journal of Materials Processing Technology , Vol. 87 , 1999 , p 237 . 10.1016/S0924-0136(98)00357-4 [Hardwicke et al., 2000] Hardwicke C...
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
...Abstract Abstract In forgings of both ferrous and nonferrous metals, the flaws that most often occur are caused by conditions that exist in the ingot, by subsequent hot working of the ingot or the billet, and by hot or cold working during forging. The inspection methods most commonly used...
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
...–1950) 955–980 (1750–1800) Beta Ti-13V-11Cr-3Al 720 (1325) 1120–1175 (2050–2150) 1010–1065 (1850–1950) 925–980 (1700–1800) Fig. 9.2 Effect of forging temperature on forging pressure. Lower forging pressures are required in hot working titanium alloys at higher temperatures...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230295
EISBN: 978-1-62708-298-3
.... , and Craik R.L. , 1963 . Fabrication of Beryllium Sheet by Upset Forging , The Metallurgy of Beryllium , Institute of Metals Monograph 28, Chapman and Hall Ltd. , London , p 743 Beaver W.W. , and Wikle K.G. , 1954 . Mechanical Properties of Beryllium Fabricated by Powder...