1-20 of 192 Search Results for

forging dies

Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
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 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...
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.t51040295
EISBN: 978-1-62708-300-3
.... , “ A Further Consideration of Factors Affecting the Life of Drop Forging Dies, ” J. Iron Steel Inst. , Vol 210 ( No. 7 ), July 1969 , p 520 – 526 . [Bay, 2002] Bay N. , class notes , Technical University of Denmark , 2002 . [Bobke, 1991] Bobke T. , “ Phenomenon of Edge Layer...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040141
EISBN: 978-1-62708-300-3
... is discharged from the machine. Fig. 12.13 Principle of semiautomatic ring-rolling machine for manufacturing of bearing races. [ Beseler, 1969 ] The horizontal forging machines are essentially horizontal mechanical presses. As seen in Fig. 12.14 , these machines employ two gripper dies, one...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2008
DOI: 10.31399/asm.tb.fahtsc.t51130133
EISBN: 978-1-62708-284-6
... stresses/distortion —Most materials (especially steels) will have residual stresses after cold forging; distortion occurs when the stresses are not symmetrical. Lubrication—dies and workpiece —viscosity and flow, hydrodynamics of lubrication, friction, heat generation and power losses, coefficients...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.tpmpa.t54480225
EISBN: 978-1-62708-318-8
... forged from the beta field at a temperature of 1150 °C (2100 °F). Right: workpiece forged from the alpha-beta field at 955 °C (1750 °F). The piece on the left is filed. Dies were designed originally for forging aluminum. Fig. 10.22 Flat-track forging. Originally of aluminum design, this 18 kg...
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 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 February 2005
DOI: 10.31399/asm.tb.chffa.t51040059
EISBN: 978-1-62708-300-3
... of Temperature Transients in Forging Dies, ” in Temperature, Its Measurement and Control , Vol 3 , Part 2, Reinhold , 1961 , p 625 . In metal forming processes, both plastic deformation and friction contribute to heat generation. Approximately 90 to 95% of the mechanical energy involved...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2021
DOI: 10.31399/asm.tb.tpsfwea.t59300199
EISBN: 978-1-62708-323-2
..., and large forged shapes. In the United States, they are mostly made by specialty steel suppliers, and tool steel suppliers often offer large blocks of various tool steels for dies and molds. The difference between an alloy steel and a tool steel is not that straightforward, but a practical definition...
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
..., a trend developed to lower the strain rate and to heat the dies. Faster strain rates lead to frictional heat buildup, nonuniform recrystallization, and metallurgical instabilities, and are also likely to cause radial-type ruptures, especially in high γ′ alloys. Superalloys can be forged by a variety...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.pnfn.t65900153
EISBN: 978-1-62708-350-8
... by their principal alloying element. All can be readily processed via gas nitriding, salt bath nitriding, or ion nitriding. Forging Dies Aluminum Extrusion Dies Enhancing the surface hardness of high-speed steel cutters via the nitriding process offers many advantages. However, once again, a deep case...
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
... Fig. 35 Drawing of (a) rod or wire and (b) tube. Source: Ref 12 Fig. 14 Typical multiple-impression hammer dies for closed-die forging. Source: Ref 10 Fig. 26 Die setup used to produce sterling silver medallions by coining and restriking. Dimension given in inches. Source...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240411
EISBN: 978-1-62708-251-8
... in high-speed cutting tools such as drill bits and end mills. Hot work tool steels are used in operations that utilize dies for punching, shearing, and forming materials at elevated temperatures, while cold work steels are used in similar operations at room temperature. 22.1 Water-Hardening Steels...
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 December 2003
DOI: 10.31399/asm.tb.pnfn.t65900201
EISBN: 978-1-62708-350-8
.... The SBN treatment also benefits die casting and forging dies by reducing heat checking, soldering, diffusion, and wear from molten metals ( Fig. 14 ). Cycle times for hot-work die steels may require 2 h to achieve the desired properties. The performance of stamping dies is also increased by reducing...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040193
EISBN: 978-1-62708-300-3
... with or without chamfers. The diameter and the height of the cylinder are defined in the preprocessing stage. A lot of closed-die forgings are axisymmetric, which need a two-dimensional geometry handling. Boundary conditions on specific segments of the workpiece and dies that relate to deformation and heat...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040257
EISBN: 978-1-62708-300-3
... Superalloy Dies for Isothermal Forging of Titanium Alloys, ” Transactions of American Foundrymen’s Society , Vol. 77 , May 5–9 , 1969 , p 289 – 296 . [Rosenberg, 1978] Rosenberg H.W. , “ Ti-10V-2Fe-3Al—A Forging Alloy Development, ” Proceedings of the Metal Society Conference on Forging...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040067
EISBN: 978-1-62708-300-3
... . 10.1016/0924-0136(92)90314-I In forging, the flow of metal is caused by the pressure transmitted from the dies to the deforming workpiece. Therefore, the frictional conditions at the die/workpiece interface greatly influence metal flow, formation of surface and internal defects, stresses acting...