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power-drop hammers

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Published: 01 January 2006
Fig. 2 Schematic of an air-actuated power-drop hammer equipped for drop hammer forming More
Image
Published: 01 January 2005
Fig. 3 Principal components of a power-drop hammer More
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003973
EISBN: 978-1-62708-185-6
...Abstract Abstract Hammers and high-energy-rate forging machines are classified as energy-restricted machines as they deform the workpiece by the kinetic energy of the hammer ram. This article provides information on gravity-drop hammers, power-drop hammers, die forger hammers, counterblow...
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 Chapter

Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005128
EISBN: 978-1-62708-186-3
... by the progressive deformation of sheet metal in matched dies under the repetitive blows of a gravity-drop hammer or a power-drop hammer. The configurations most commonly formed by the process include shallow, smoothly contoured double-curvature parts; shallow-beaded parts; and parts with irregular and comparatively...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003177
EISBN: 978-1-62708-199-3
..., drop hammer forming, explosive forming, electromagnetic forming, and superplastic forming. auxiliary equipment blanking contour roll forming deep drawing die materials drop hammer forming electromagnetic forming explosive forming fine-edge blanking forming by multiple-slide machines...
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005146
EISBN: 978-1-62708-186-3
... (shear) spinning, rubber-pad forming, stretch forming, contour roll forming, creep forming, vacuum forming, drop hammer forming, joggling, and explosive forming. alpha alloys alpha-beta alloys Bauschinger effect cold forming contour roll forming creep forming diffusion bonding drop hammer...
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005144
EISBN: 978-1-62708-186-3
... and the lubricants used in the processes. It discusses the various forming processes of magnesium alloys. These include press-brake forming, deep drawing, manual and power spinning, rubber-pad forming, stretch forming, drop hammer forming, and precision forging. cold forming deep drawing drop hammer forming...
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005139
EISBN: 978-1-62708-186-3
..., namely, press-brake forming, press forming, multiple-slide forming, deep drawing, spinning, rubber-pad forming, drop hammer forming¸ three-roll forming, contour roll forming, stretch forming, and bending of tubing. bending blanking contour roll forming deep drawing drop hammer forming...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003974
EISBN: 978-1-62708-185-6
... equipment Forging machine Speed range Speed-stroke behavior ft/s m/s Hydraulic press 0.2–1.0 (a) 0.06–0.30 (a) Mechanical press 0.2–5 0.06–1.5 Screw press 2–4 0.6–1.2 Gravity-drop hammer 12–16 3.6–4.8 Power-drop hammer 10–30 3.0–9.0 Counterblow hammer 15...
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
.... Hammers Simple board-type gravity-drop hammers are not extensively used for the forging of stainless steel, because of their low capacity and because greater control is obtained with other types of equipment. Power-drop hammers (steam or air) are widely used for open-die forgings, as well as for all...
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 Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003566
EISBN: 978-1-62708-180-1
... to power-transmission gears. However, as pointed out by Lodge, spalling occurs in the hardened periphery of the striking face, with the core not playing any role in the process. Consequently, the use of high-hardenability steels for hammers should not pose any problems, and, in fact, as noted earlier...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003275
EISBN: 978-1-62708-176-4
... large specimens such as forged steel or wrought alloy steel rolls. In this procedure, a diamond-tipped hammer is dropped from a fixed height onto the surface of the material being tested. The height of rebound of the hammer is a measure of the hardness of the metal. The Scleroscope scale consists...
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
... at their optimum hot working temperatures. This does not imply that aluminum alloys are less adaptable to forging but rather that the equipment must be capable of applying pressures higher than those required to accomplish similar forging with many other metals. Hammers Gravity and power-drop hammers...
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
... of the equipment, forging design sophistication, desired forging process, and cost. Additional information on the types of equipment used in the manufacture of forgings is available in the Section “Forging Equipment and Dies” in this Volume. Hammers Gravity and power-drop hammers are used for both the open...
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
...” in this article. Hammers and Presses Because the length of the hammer ram stroke and the magnitude of the force must be controllable over a wide range throughout the forging cycle, gravity-drop hammers and most mechanical presses are not suitable for open-die forging. Power forging hammers (air or steam...
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.9781627081863
EISBN: 978-1-62708-186-3
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003180
EISBN: 978-1-62708-199-3
... Press forming Multiple-slide forming Deep drawing Spinning Drop hammer forming Contour roll forming Embossing Fatty oils and blends (a) C B C A C A C B B Soap-fat pastes (b) NR NR C A B B C B C Wax-base pastes (b) B B B A B B C B A Heavy-duty emulsions...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003308
EISBN: 978-1-62708-176-4
... on the instrumentation, standards and requirements, and limitations of instrumented Charpy impact test, which is carried out in specimens with induced fatigue precrack. The article concludes with a review of the requirements of drop weight testing and the specimens used in other notch-toughness tests. fracture...