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cold open-die

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Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0009005
EISBN: 978-1-62708-185-6
... some common workability tests and illustrates their application in practical forging situations. Workability tests for open-die forging of cast structures, hot and cold open-die forging of recrystallized structures, fracture-controlled defect formation, establishing effects of process variables...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005268
EISBN: 978-1-62708-187-0
... die casting machine Clamp End The functions of the clamp end of the machine include opening and closing the die, developing clamping force, and providing power for sliding cores and for ejecting the casting from the die cavity. The machine must open and close the die on a straight line...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003183
EISBN: 978-1-62708-199-3
...Abstract Abstract Forging machines use a wide variety of hammers, presses, and dies to produce products with the desired shape, size, and geometry. This article discusses the major types of hammers (gravity-drop, power-drop, high speed, and open-die forging), and presses (mechanical, hydraulic...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005267
EISBN: 978-1-62708-187-0
..., ensuring repeatable opening and closing operations. A cover plate, bolted onto the top of the tool, holds all the components together. Distinctions Between Hot and Cold Chamber Processes Beyond the injection section, a conventional hot chamber die casting machine closely resembles a cold chamber...
Image
Published: 01 January 2005
Fig. 24 Typical tolerances for cold formed parts. (a) Head produced by open heading. (b) Head produced by partial containment in the die. Source: Ref 144 More
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004004
EISBN: 978-1-62708-185-6
... under the head. Some extruding can also be done in these machines. Because of their versatility over single-stroke cold headers, double-stroke solid-die headers are extensively used in the production of fasteners. Single-Stroke Open-Die Headers Single-stroke open-die headers are made for smaller...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004005
EISBN: 978-1-62708-185-6
...-pressure applications. Fig. 7 Tooling for forward extrusion Fig. 8 Measurement of die angle in dies for forward extrusion Fig. 9 Chevrons in forward extrusion. Source: Ref 2 Process Limits Free (open-die) forward extrusion of solid bars is limited to 30 to 35...
Book Chapter

By H.W. Sizek
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003984
EISBN: 978-1-62708-185-6
... or a cold-working operation. Primary metals producers use hot-work radial forging to produce billet or bar. Starting stock can be ingots or cogs from ingots that have been forged to an intermediate size with an open-die forging operation. (See the article “Practical Aspects of Converting Ingot to Billet...
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006385
EISBN: 978-1-62708-192-4
... process ( Fig. 1 ), developed in the late 1700s for producing lead pipe, a billet is placed in a chamber and forced through a die opening by a ram. The die may be round or of various shapes. Extrusion may be carried out cold or at elevated temperatures. Because a chamber with a specific volume is involved...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003996
EISBN: 978-1-62708-185-6
... for the forging of aluminum alloys Forging process/equipment Die temperature °C °F Open-die forging Ring rolling 95–205 200–400 Mandrel forging 95–205 200–400 Closed-die forging Hammers 95–150 200–300 Upsetters 150–260 300–500 Mechanical presses 150–260 300–500...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006074
EISBN: 978-1-62708-175-7
... with intermediate annealing for conversion to final form. Forging Preforms Forging preforms have a shape related to the final forging shape depending on whether it is a closed-die or open-die forging. The preform must have sufficient total mass to fill the closed-die cavity or finish the open-die part...
Book Chapter

Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003978
EISBN: 978-1-62708-185-6
... manipulators include both manned and unmanned operations. Unmanned operations are frequently controlled by the press operator and incorporate programmable positioning and manipulating sequences. Production and Practice Stock for smaller open-die forgings is usually prepared by cold sawing to a length...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003980
EISBN: 978-1-62708-185-6
... precisely for this kind of forging. Fig. 1 Upset forging process using split dies. 1, stationary die; 2, moving die; 3, upsetting punch. (a) Inserting bar in open dies. (b) Closed dies gripping bar. (c) Upset forging. (d) Upsetting punch withdrawn. (e) Ejection of the forging Hot upset forging...
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006493
EISBN: 978-1-62708-207-5
...Abstract Abstract This article examines aluminum forging processes, including open-die, closed-die, upset, roll, orbital, spin, and mandrel forging, and compares and contrasts their capabilities and the associated design requirements for forged parts. It discusses the effect of key process...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003983
EISBN: 978-1-62708-185-6
..., stationary-spindle, creeping-spindle, alternate-blow, and die-closing types. All these machines are equipped with dies that open and close rapidly to provide the impact action that shapes the workpiece. The five principal machine concepts for swaging are shown in Fig. 4 . Fig. 4 Principal machine...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003132
EISBN: 978-1-62708-199-3
... and other alloys. With either type of machine, the metal is cold worked by pulling the tube through a die that reduces the diameter. Concurrently, wall thickness is reduced by drawing over a plug or mandrel that can be either fixed or floating. Cold drawing increases the strength of the material...
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006525
EISBN: 978-1-62708-207-5
... by circulating cold water through cooling vents in the dies. Typical tool steels for die components are listed in Table 3 . The die cavity is machined into hot work die steel inserts (1) that are fitted into the two halves of the die block (2). The location of the parting line must ensure that, on opening...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.9781627081856
EISBN: 978-1-62708-185-6
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003979
EISBN: 978-1-62708-185-6