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drop hammer forming

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Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003177
EISBN: 978-1-62708-199-3
... nonferrous metals. The article reviews the various types of forming processes such as blanking, piercing, fine-edge blanking, press bending, press forming, forming by multiple-slide machines, deep drawing, stretch forming, spinning, rubber-pad forming, three-roll forming, contour roll forming, drop hammer...
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 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 hammers, and...
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 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, screw...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003180
EISBN: 978-1-62708-199-3
... 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 (c) B...
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.a0003181
EISBN: 978-1-62708-199-3
... and hot forming of titanium alloys are given in Table 14 . Table 14 Tool materials and lubricants used for forming titanium alloys Operation(s) Tool materials Lubricants Cold forming Press forming, drawing, drop hammer forming Cast zinc die or lead punch with stainless steel...
Series: ASM Handbook
Volume: 4B
Publisher: ASM International
Published: 30 September 2014
DOI: 10.31399/asm.hb.v04b.a0005950
EISBN: 978-1-62708-166-5
... electromagnetic properties – (h) – – – (h) – (Austenite) grain size dependent transformation kinetics + (i) + (i) + (i) + (i) – Latent heat of transformation + (j) + + + + (j) Latent heat of dissolution – – – – – Temperature drop (thermoelastic) effect...
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
... forging of automotive connecting rods. See text for details. Ashok K. Khare, consultant, and Daniel Antos, Canton Drop Forge, reviewed and updated this article from Closed-Die Forging in Hammers and Presses, Forming and Forging , Vol 14, ASM Handbook , (formerly Metals Handbook , 9th ed.), 1988...
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
... Table 1 Speed-range and speed-stroke behavior of forging 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...
Book Chapter

Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003987
EISBN: 978-1-62708-185-6
..., such as drop hammers, cannot be readily overloaded, but presses (especially mechanical presses) can be severely overloaded. This is most likely to happen if more than one blank is fed to the coining dies at a time. Such overloading can break the press and the dies, and it will certainly shorten the...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003097
EISBN: 978-1-62708-199-3
... cost of dies and cost increases from processing difficulties in forging and trimming. Sharp steps or drops in the parting line should be limited to about 15° from the vertical in small parts and 25° in large forgings, to prevent a tearing instead of a cutting action in trimming off the flash. Locked...
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
... greater hardness can be used in inserts than would be safe or economical to use in solid dies. However, some commercial forge shops in which most of the forging units are gravity drop hammers make only limited use of die inserts. Inserts can contain the impression of only the portion of a forging that...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003065
EISBN: 978-1-62708-200-6
... glass products, including forming, grinding and polishing, and explores the advantages, disadvantages and steps involved in sol-gel process. It also discusses the types, processes and properties of annealed, laminated, and tempered glass, and presents the steps involved in glass decoration. The article...
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
...” and “Conventional Hot Extrusion” in this Volume. Gravity and power-drop hammers are used for both the open-die and closed-die forging of aluminum alloys because of the relatively low fabrication costs associated with such equipment, although the power requirements for forging aluminum alloys...
Book Chapter

Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003990
EISBN: 978-1-62708-185-6
... into the workpiece. Machines with three different combinations of these motions are illustrated in Fig. 3 . Rotary forging is generally considered to be a substitute for conventional drop-hammer or press forging. In addition, rotary forging can be used to produce parts that would otherwise have to...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003101
EISBN: 978-1-62708-199-3
... HP-9-4-30 steel is available as billet, bar, rod, plate, sheet, and strip. It has been used for aircraft structural components, pressure vessels, rotor shafts for metal forming equipment, drop hammer rods, and high-strength shock-absorbing automotive parts. The steel AF1410 was an outgrowth of...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003009
EISBN: 978-1-62708-200-6
... Abstract Advanced thermoplastics are stiff, moldable plastics that compete with traditional engineering thermoplastics and thermosets owing to their good tensile, compressive, impact, and shear strength, electrical properties, and corrosion resistance. This article discusses commercial forms...
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0000613
EISBN: 978-1-62708-181-8
... cracking of discs for circular saw blades. Parts were made of a martempered low-alloy tool steel similar to type 234. Fig. 752 : Woody fracture surface of saw disc that broke when dropped. 13×. Fig. 753 : Fine and coarse dimples near the blade surface, in the decarburized zone. SEM, 2600×. Fig. 754...
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
... Forging” in this article. 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 driven...
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
... provided in Fig. 7 . Fig. 7 Comparative dynamic hot hardness versus temperature (forgeability) for various ferrous alloys 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...