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closed die forging

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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
... Abstract This article provides an overview of the capabilities of closed-die forging. One of the most important aspects of closed-die forging is proper design of preforming operations and of blocker dies to achieve adequate metal distribution. The article describes the effects of friction...
Series: ASM Handbook
Volume: 1
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v01.a0001021
EISBN: 978-1-62708-161-0
... Abstract Forgings are classified in various ways, beginning with the general classifications open die and closed die. They are also classified according to how they are made; such as hammer upset forgings, ring-rolled forgings, and multiple-ram press forgings; and in terms of the close...
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Published: 01 January 2005
Fig. 1 Types of draft, as illustrated on the surfaces of a closed-die forging More
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Published: 01 December 1998
Fig. 4 Flow lines in a closed-die forging of AISI 4340 alloy steel. ∼0.75× More
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Published: 01 December 1998
Fig. 6 Components of a four-post hydraulic press for closed-die forging More
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Published: 01 December 1998
Fig. 18 Typical multiple-impression hammer dies for closed-die forging More
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Published: 01 December 1998
Fig. 19 Metal flow and load-stroke curve in closed-die forging. (a) Upsetting. (b) Filling. (c) End. (d) Load-stroke curve More
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Published: 01 January 2005
Fig. 20 Flow lines in a closed-die forging of AISI 4340 alloy steel. Hot 50% HCl. Original magnification approximately 0.75× More
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Published: 01 January 2005
Fig. 31 Typical deformation sequence in closed-die forging of a rib-web part, showing how laps can be generated if preform geometry is selected improperly. Source: Ref 2 More
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Published: 01 January 2005
Fig. 16 Principal components of a four-post hydraulic press for closed-die forging More
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Published: 01 January 2005
Fig. 3 Load-versus-displacement curves obtained in closed-die forging an axisymmetric steel part at 1100 °C (2012 °F) in three different machines with different initial velocities ( V pi ) More
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Published: 01 January 2005
Fig. 2 Typical multiple-impression dies for closed-die forging. See text for discussion. More
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Published: 01 January 2005
Fig. 13 Cross section of a closed-die forging test setup. Source: Ref 28 More
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Published: 01 January 2005
Fig. 7 Metal flow (a) to (c) and load-stroke curve (d) in closed-die forging. (a) Upsetting. (b) Filling. (c) End More
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Published: 01 January 2005
Fig. 8 Typical load-stroke curve for a closed-die forging showing three distinct stages More
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Published: 01 January 2005
Fig. 12 Steps involved in the closed-die forging of automotive connecting rods. See text for details. More
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Published: 01 December 1998
Fig. 14 Types of aluminum closed-die forgings and tolerances for each. (a) Blocker-type. (b) Conventional. (c) High-definition. (d) Precision Characteristic Tolerance, mm (in.) Blocker-type Conventional High-definition Precision Die closure +2.3, −1.5 (+0.09, −0.06) +1.5 More
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Published: 01 January 2005
Fig. 5 Types of aluminum closed-die forgings and tolerances for each. (a) Blocker-type. (b) Conventional. (c) High-definition. (d) Precision Characteristic Tolerance, mm (in.) Blocker-type Conventional High-definition Precision Die closure +2.3, −1.5 (+0.09, −0.06) +1.5 More
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Published: 01 January 2005
Fig. 1 Examples of copper alloy closed-die forgings. Courtesy of Mueller Brass Company More
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Published: 01 December 2004
Fig. 7 Flow lines in closed-die-forged UNS G41400 steering knuckle revealed by cold deep-acid etching with 10% aqueous HNO 3 (0.5×) and enhanced with inking More