1-20 of 126 Search Results for

hot upset forgings

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
Image
Published: 01 September 2008
Fig. 16 Typical state of strain in hot upset forging of steel showing fracture criteria in MSC superforge simulation More
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
..., 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 and drawing...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040295
EISBN: 978-1-62708-300-3
... geometry changes on die wear can be rapidly investigated, again avoiding the high cost of experimental studies. 22.8.1 High-Speed Hot Upset Forging—A Case Study In hot upset forging, the temperature distributions at the top and bottom surfaces are not symmetric. Due to the free resting...
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...
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
... desireable [ 8 ]. Open-die forging is usually performed hot, as the process is characterized by large strains. The lubricant used, if any, consists of graphite or MoS 2 suspensions [ 9 ]. 11.1.1 Upsetting of a Cylinder In Sec. 2.5 , the upsetting of a cylinder was used to demonstrate the effects...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040007
EISBN: 978-1-62708-300-3
.... 2.3.3 Electro-Upsetting <xref ref-type="fig" rid="t51040007-f4">(Fig. 2.4)</xref> Fig. 2.4 Electro-upsetting. A, anvil electrode; B, gripping electrode; C, workpiece; D, upset end of workpiece Definition Electro-upsetting is the hot forging process of gathering a large amount...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040059
EISBN: 978-1-62708-300-3
.../asm.tb.chffa.t51040059 Copyright © 2005 ASM International® All rights reserved. www.asminternational.org 60 / Cold and Hot Forging: Fundamentals and Applications Fig. 6.1 Grid system for calculating velocity and temperature fields in cold upsetting of a cylinder. [Lahoti et al., 1975] Afr¯vFDF h (Eq 6.3)F cqqa where...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040141
EISBN: 978-1-62708-300-3
...-pitman mechanism. The operational 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...
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 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 processes...
Image
Published: 30 September 2023
Figure 11.16: Common test methods for evaluating lubricants and friction in hot forging. (a) Spike test; (b) double cup extrusion test; (c) backward can extrusion; (d) sliding-upsetting test; (e) upsetting-sliding test; (f) T-shaped compression test. More
Image
Published: 01 November 2013
Fig. 10 Open-die forging. Source: Ref 9 Definition Open-die forging is a hot forging process in which metal is shaped by hammering or pressing between flat or simple contoured dies. Equipment Hydraulic presses, hammers Materials Carbon and alloy steels, aluminum alloys More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040067
EISBN: 978-1-62708-300-3
... of the workpiece and the total upsetting force is greater than for the frictionless conditions. Fig. 7.1 Upsetting of cylindrical workpiece. (a) Frictionless. (b) With friction Cold and Hot Forging: Fundamentals and Applications Taylan Altan, Gracious Ngaile, Gangshu Shen, editors, p 67-81 DOI: 10.31399...
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.t51040091
EISBN: 978-1-62708-300-3
..., 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 The major process variables involved in forging can be summarized...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040107
EISBN: 978-1-62708-300-3
... The interaction between the principal machine and process variables is illustrated in Fig. 10.1 for hot forming processes conducted in presses. As can be seen in Fig. 10.1 , the flow stress, σ ¯ , the interface friction conditions, and the forging geometry (dimensions, shape) determine...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040083
EISBN: 978-1-62708-300-3
.../asm.tb.chffa.t51040083 Copyright © 2005 ASM International® All rights reserved. www.asminternational.org 84 / Cold and Hot Forging: Fundamentals and Applications Fig. 8.1 Direct (a) and inverse (b) problems any material test in which FEA can be done in- cluding the cylinder upset and ring compression tests, provided...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060117
EISBN: 978-1-62708-261-7
... external and/or internal contours. These parts can be forged efficiently to very close tolerances. Fig. 6.15 Range of products that can be produced with radial forging Hot Upset Forging Hot upset forging is essentially a process used for enlarging and reshaping part of the cross-sectional...
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
... forgeable alloys. Forging temperatures and relative forgeability ratings for some wrought superalloys Table 6.1 Forging temperatures and relative forgeability ratings for some wrought superalloys Alloy Forging temperature (a) Forgeability rating (b) Upset and breakdown Finish forging...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040193
EISBN: 978-1-62708-300-3
... accuracy using computational tools prior to committing the forging to shop trials. Some of the proven practical applications of process simulation in closed-die forging include: Design of forging sequences in cold, warm, and hot forging, including the prediction of forming forces, die stresses...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.tpmpa.t54480225
EISBN: 978-1-62708-318-8
... Abstract This chapter discusses the equipment and processes used to convert titanium billet and bar into useful shapes or more refined product forms. These secondary working operations include open-die, closed-die, hot-die and isothermal forging as well as ring rolling and extruding...