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mechanical fine-blanking presses

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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: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.9781627081764
EISBN: 978-1-62708-176-4
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003157
EISBN: 978-1-62708-199-3
..., 0.03 to 0.06% Ag (10 to 20 oz per ton), or small amounts of finely dispersed metal oxides, such as Al 2 O 3 , with little loss of conductivity. Conversely, improved spring properties are obtained only at the expense of electrical conductivity. Precipitation-hardened alloys, dispersion-hardened alloys...
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 November 1995
DOI: 10.31399/asm.hb.emde.a0003053
EISBN: 978-1-62708-200-6
... carriers, or cutting tools can be produced at rates up to several thousand per minute. Pressing pressures in the range of 20 to 300 MPa (3 to 45 ksi) are used. Low pressures are common for clay-based materials, whereas higher pressures are required for fine technical ceramics. Because of its flexibility...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003112
EISBN: 978-1-62708-199-3
... stream is disintegrated into fine droplets by the high-velocity atomizing medium. The liquid metal droplets cool and solidify (quench) as they settle to the bottom of the water-filled atomizing tank. Fig. 4 Schematic of the water atomization process After magnetic separation, dewatering...
Book Chapter

By Erhard Klar
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003185
EISBN: 978-1-62708-199-3
..., the manufacture of large part numbers, at least 1,000 to 10,000, is usually essential if competition with alternate manufacturing processes, such as machining, die and investment casting, die forging, fine blanking, and stamping, is to be successful. This explains the preferred use of P/M in...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003988
EISBN: 978-1-62708-185-6
... forging presses commonly used in conventional forging ( Ref 35 , Ref 36 , Ref 37 , Ref 38 ) are used for powder forging. Tests have been conducted on many types of equipment, including hammers, high-energy rate forming (HERF) machines, mechanical presses, hydraulic presses, and screw presses ( Ref 8...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003097
EISBN: 978-1-62708-199-3
... direction (or equivalent) of grain flow, and the maximum load-carrying ability in the finished part is attained by providing a grain-flow pattern parallel to the direction of the major applied service loads when, in addition, sound, dense, good-quality metal of sufficiently fine grain size has been produced...
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
... ends or sides so that the dies can be handled more easily. The rough blocks are then moved to a planer or planer mill where they are paired as upper and lower die blocks of a die set. Die faces are often ground to a fine finish to obtain a smooth surface for layout work. After the material has been...
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.a0003181
EISBN: 978-1-62708-199-3
... the platinum metals are those resulting from surface contamination derived from rolls, swaging dies, and other tools. Base-metal impurities such as iron, which may be smeared on the surface or picked up as slivers or fine dust during hot working or annealing, will alloy with the surface layers and...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003113
EISBN: 978-1-62708-199-3
... robotics, and to secondary operations, in order to obtain the process conditions that are most efficient. This efficiency is maintained by optimizing the process line layout. Depending on the fineness of the starting powder and the sintering temperature, densities of 93 to 98% of full density are...
Series: ASM Handbook
Volume: 4E
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.hb.v04e.a0006281
EISBN: 978-1-62708-169-6
... reheating the supersaturated alloy to a lower temperature, where the solid solubility of the solutes is low in α-phase) to form uniformly dispersed fine precipitates, whereby the strength of the alloy increases and, simultaneously, the amount of dissolved solutes in primary α-phase copper decreases, which...
Book Chapter

By Robert Bolin
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003982
EISBN: 978-1-62708-185-6
... formed using only a fraction of the force that would be required if the entire part were formed under a die. The input blank for the ring rolling process is a donut-shaped preform that is usually formed in a hydraulic press, mechanical press, or forging hammer. Recently...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003152
EISBN: 978-1-62708-199-3
... Heading dies (severe impact), hot-forming dies, swaging dies 11–25 Medium to coarse 84 Back extrusion punches, hot-forming punches 11–15 Medium 88 Back extrusion punches, blanking punches, and dies for high shear strength steel 10–12 Fine to medium 89 Powder compacting dies, Sendzimir...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001232
EISBN: 978-1-62708-170-2
... finish ( Table 1 ). In rough grinding processes, material removal occurs at a rapid rate, with less emphasis on surface roughness/tolerances. In contrast, high-precision methods emphasize the attainment of fine surface finish and close tolerances at the expense of material removal rates. In precision...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003976
EISBN: 978-1-62708-185-6
..., or catastrophic die failure, is a limiting condition from a die-life standpoint. Failure occurs quickly (in a few cycles) because of high applied stress or low toughness of the die material. As in the case of mechanical fatigue, high stresses may result from poor die design, improper press fitting or...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003167
EISBN: 978-1-62708-199-3
... suitable casting conditions, the arsenical lead babbitts—for example, SAE 15 (ASTM grade 15)—develop remarkably fine and uniform structures. They also have better fatigue strength than arsenic-free alloys. Pouring temperature and rate of cooling markedly influence the microstructures and properties of...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003059
EISBN: 978-1-62708-200-6
... structure, density, mechanical properties, physical properties, electrical properties, thermal properties, and magnetic properties. ceramics crystallographic data diamond electrical properties engineering data graphite magnetic properties mechanical properties physical properties thermal...