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cold open-die

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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.t51040007
EISBN: 978-1-62708-300-3
... forging Open-die forging 10 / Cold and Hot Forging: Fundamentals and Applications Fig. 2.2 Closed-die forging with flash. (a) Schematic diagram with flash terminology. (b) Forging sequence in closed-die forging of connecting rods Orbital forging Powder metal (P/M) forging Upsetting Nosing...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040211
EISBN: 978-1-62708-300-3
... in frequent downtime for maintenance and repairs [ Altan et al., 1996 ]. The tooling used in this process is shown in Fig. 17.8 . It consists of a flat-faced punch and a simple round die cavity. At the beginning of the stroke, the billet is cylindrical and undergoes a process similar to an open upset until...
Image
Published: 01 December 2006
Fig. 3.59 Development of the deformation zone with different die opening angles for cold indirect extrusion with lubrication and without a shell of Al99.5 More
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
... the properties and homogeneity of the microstructure; therefore, forging is often used to prepare cast ingots for other bulk deformation processes, such as hot rolling; and (2) forging is also a major method of producing semifinished or near-net shapes. Forging processes can be described as open-die forging...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060117
EISBN: 978-1-62708-261-7
.... The material is gripped and handled by manipulators, and reductions are obtained by deforming localized areas of the workpiece. Open-die forging is most commonly done in the hot working temperature range ( Table 6.4 ), although open-die forging of wrought (recrystallized) workpieces can be done cold...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2007
DOI: 10.31399/asm.tb.pmsspmp.t52000223
EISBN: 978-1-62708-312-6
... cavity to minimize die-wall friction and to facilitate pressing and ejection demixing. (1) The undesirable separation of one of the compact. or more constituents of a powder mixture. (2) Segregation due to overmixing. die opening. Entrance to the die cavity. die plate. The base plate of a press...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040141
EISBN: 978-1-62708-300-3
... or as a preforming step, solid shafts with varying or constant diameter along the length and tubes with internal or external varying diameter. All these parts require symmetrical reduction of cross sections. For some of these applications, open-die forging presses cannot be used economically because they are limited...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.tb.ems.t53730139
EISBN: 978-1-62708-283-9
.... Aluminum may be cast into sand or iron molds. Low-melting-point metals (aluminum, magnesium, and zinc) may be die cast. In die casting, metal is forced into a metal mold that automatically opens and ejects the part as soon as it is frozen. The production rate is high but so are capital costs. In recent...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smff.t53400233
EISBN: 978-1-62708-316-4
... without striking the bottom of the die. Metal contact is made at only three points in the cross section: the nose of the male die and the two edges of a V-shaped die opening. air cushion An air-actuated die cushion. air draw A draw operation performed in a single-action press with the blank holder...
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 September 2008
DOI: 10.31399/asm.tb.fahtsc.t51130133
EISBN: 978-1-62708-284-6
... (roll), open-die tooling Hot forging —temperature, strain and strain rate, forge center cell, loading and transfer device, lubrication, parts collection, and inspection Trimming —trimmer unit and capacity, flash removal, temperature trace of product flashline Causes of defects during hot...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2006
DOI: 10.31399/asm.tb.ex2.t69980059
EISBN: 978-1-62708-342-3
... of the billet in the container. The process stops when the discard length l R is reached. The container then opens a short distance so that the discard can be separated from the die and the extrusion by a shear blade. The extrusion can then be pulled from the die. The container and the stem (with a loose...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040295
EISBN: 978-1-62708-300-3
... Die opening angle (2α), degrees Transition radius (R) Experimental die life, parts Predicted die life, parts in. mm I AISI M2 61 120 0.04 1 50–400 280 II AISI D2 60 120 0.04 1 65–200 210 III AISI D2 60 90 0.04 1 900–1000 950 IV AISI D2 60 90 0.10 2.5...
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
... components. Forming is the primary way in which shapes derived from plate or sheet are prepared. Forging General Aspects Titanium alloy forgings are produced by all the forging methods currently available. These methods include open-die, closed-die, rotary forging, and others. Selection...
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.t51040067
EISBN: 978-1-62708-300-3
... systems for cold forging of steel Process Deformation Lubricant Upsetting Light None Mi + EP + FA Severe Ph + SP Ironing and open-die extrusion Light Ph + Mi + EP + FA Severe Ph + SP Extrusion Light Ph + Mi + EP + FA Severe Ph + SP Ph + MoS 2 Ph + MoS 2 + SP...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2005
DOI: 10.31399/asm.tb.gmpm.t51250129
EISBN: 978-1-62708-345-4
... of gear blanks which would subsequently be cut/machined into the final desired configuration. Gear blanks have been produced by open-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...
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
... components are produced by: Die forging Upsetting Extrusion forging Roll forging Swaging (or versions using 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...
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
... before it enters the annealing chamber. At these thin gages, the number of rolling-annealing cycles becomes relatively large in reducing the thickness. Extrusion In extrusion, a billet is forced under compression to flow through a die opening to form a product of smaller, uniform cross section...