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hot die forging

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Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003985
EISBN: 978-1-62708-185-6
... Abstract Hot-die forging and isothermal forging are unique forging methods developed to forge materials that are difficult or impossible to forge by conventional means. This article presents a comparative study on hot-die forging and isothermal forging. It discusses forging parameters, process...
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Published: 01 January 2005
Fig. 1 Comparison of conventional and hot-die forging for a typical cross section of a structural part More
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Published: 01 January 2005
Fig. 6 Gas-fired infrared heating setup for hot-die forging More
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003975
EISBN: 978-1-62708-185-6
... Abstract This article addresses dies and die materials used for hot forging in vertical presses, hammers, and horizontal forging machines (upsetters). It reviews the properties of die materials for hot forging, including good hardenability, resistance to wear, plastic deformation, thermal...
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Published: 01 January 2005
Fig. 20 Hot-die forged Ti-6Al-4V engine mount with net surfaces More
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Published: 01 January 2005
Fig. 21 Hot-die forged engine mount made of Ti-10V-2Fe-3Al with net surfaces. Length, 170 mm (6.70 in.); width, 106 mm (4.17 in.) More
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003183
EISBN: 978-1-62708-199-3
... on computer-aided design in the forging industry. Additionally, the article reviews specific characteristics, process limitations, advantages, and disadvantages of the most common forging processes, namely hot upset forging, roll forging, radial forging, rotary forging, isothermal and hot-die forging...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004032
EISBN: 978-1-62708-185-6
... of aluminum, isothermal and hot die forging, and the extrusion of steel. cold forging forging hot die forging hot forging steels lubricants molybdenum disulfide superalloys hot forging titanium hot forging FORGING and related processes consist of cold, warm, and hot forging; roll forging...
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Published: 01 January 2005
Fig. 7 Examples of hot forging die surfaces plastically deformed. Source: Ref 3 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 December 1998
Fig. 28 Comparison of raw material saved in the production of a Ti-6Al-4V structural forging that was hot-die forged versus a conventionally forged part (see cross-sectional areas and legend) More
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Published: 01 January 2005
Fig. 23 Near-net-shape alloy 718 turbine disk produced by a multistep hot-die forging process More
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003184
EISBN: 978-1-62708-199-3
... forging, or hot-die forging. Often, two or more of these methods are used in sequence. Forging Alloys Table 6 lists the most commonly forged heat-resistant alloys and their forging temperatures and forgeability ratings. Forging temperatures and forgeability ratings for heat-resistant alloys...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003993
EISBN: 978-1-62708-185-6
... processed superalloys of the 1960s. Isothermal Forging and Hot-Die Forging The current trend in the forging of heat-resistant alloys is to lower the strain rate and to heat the dies. Faster strain rates lead to frictional heat buildup, nonuniform recrystallization, and metallurgical instabilities...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004000
EISBN: 978-1-62708-185-6
... °C (1000 °F) or less and moderate strain rates (slow-strain-rate hot-die and isothermal forging of titanium alloys are discussed in depth in the article “Isothermal and Hot-Die Forging” in this Volume). Figure 1 compares the flow stresses of several commonly forged titanium alloys at strain rate...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003999
EISBN: 978-1-62708-185-6
... alloys. They should be charged into a furnace at 870 °C (1600 °F) or colder and brought up to forging temperature at a controlled rate of 40 °C/h (100 °F/h) or thermal stress cracking may occur. Die Materials and Lubricants The die materials used to forge nickel-base alloys can be hot-work tool...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003992
EISBN: 978-1-62708-185-6
... are similar to those encountered in hot die forging. First, with a stainless steel, die wear in the upsetting of part 6 will be several times as great as in the upsetting of part 4. Second, die wear for the forming of any shape will increase as the elevated-temperature strength of the alloy increases...
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
... as related topics; including stress-induced fatigue failure, tolerances, machining allowances; and the fundamentals of hammer and press forgings, hot upset forgings, and hot extrusion forgings. closed-die forgings design stress calculations hot extrusion forgings hot upset forgings machining...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003971
EISBN: 978-1-62708-185-6
... limits on temperature for the process, therefore, hot-die forging coupled with finite-element modeling for process design have been utilized. As with nickel-base superalloys, special heat treatments have been developed to provide dual (and graded) microstructures in alpha-beta titanium alloys ( Ref...
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
... 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 and secondary tensile...