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pyramid-roll machine

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Image
Published: 01 January 2006
Fig. 8 Rolling a truncated cone in a three-roll pyramid-type machine from a blank with preformed ends More
Book Chapter

Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005125
EISBN: 978-1-62708-186-3
..., namely, the pinch-roll type and the pyramid-roll type. It also lists the advantages of the pinch-roll machine, as compared to the pyramid-roll machine. The article analyzes the hot forming and cold forming processes for carbon or low alloy steel. It explains the procedure for forming truncated cones...
Image
Published: 01 December 1998
Fig. 40 Arrangement of rolls in a pyramid-type machine. (a) Entrance of flat workpiece and shape of a nearly finished workpiece, including the flat areas on the leading and trailing ends. (b) Similar, except that the workpiece was prebent to minimize the flat areas on the ends. More
Image
Published: 01 January 2006
Fig. 4 Arrangement of rolls in a pyramid-type machine. (a) Entrance of flat workpiece and shape of a nearly finished workpiece, including the flat areas on the leading and trailing ends. (b) Similar, except that the workpiece was prebent to minimize the flat areas on the ends More
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003564
EISBN: 978-1-62708-180-1
... balls surfaces. It discusses the propagation of fatigue cracks involved in rolling contacts. The characteristics of various types of RCF test machines are summarized. The article concludes with a discussion on the various failure modes of silicon nitride in rolling contact. These include the spalling...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003282
EISBN: 978-1-62708-176-4
... dependent on the attack angle of the indenter, and to a lesser extent on indenter tip radius. Specific Energy of Abrasive Machining The scratch test, with a pyramid indenter or an abrasive particle, can be used to estimate the specific energy ( u ) in abrasive machining, that is, the energy required...
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
... straightening machines. Afterward, heat was applied during the forming process itself, using heatable tools and presses. Today (2006), deep drawing at elevated temperatures is only used in a few special applications. Deformation Mechanisms of Magnesium Conventional magnesium alloys have a hexagonal...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003177
EISBN: 978-1-62708-199-3
... or 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.a0003998
EISBN: 978-1-62708-185-6
... and finish machined conditions A comparison among the mechanical properties of typical magnesium, high-strength aluminum, and titanium forging alloys is shown in Table 1 . The specific stiffnesses (moduli/density) of the three alloy classes are similar; the specific yield strengths of magnesium...
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.a0003152
EISBN: 978-1-62708-199-3
... containing tungsten carbide, titanium carbide, and cobalt are used for machining applications. The article also provides an overview of cermets used in machining applications. cemented carbides cermets coating process corrosion resistance ISO classification machining applications manufacturing...
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005169
EISBN: 978-1-62708-186-3
... recrystallization A" ampere CCR computer-aided optimization Af angstrom CDA conventional controlled rolling DRV controlled rolling Al mean cross-sectional area Copper Development DRX dynamic recovery AA nal cross-sectional area CDRX DSC dynamic recrystallization ac subcritical annealing temperature Association dss...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003270
EISBN: 978-1-62708-176-4
... deformation and wear in bearing applications. A metallurgist would like to have lower hardness for cold rolling of metals, and a manufacturing engineer would prefer less hard materials for easy and faster machining and increased production. These considerations lead, during component design, to the selection...
Series: ASM Handbook
Volume: 5A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v05a.a0005749
EISBN: 978-1-62708-171-9
... CoCrAlY a cobalt (Co), chromium (Cr), aluminum (Al), yttrium (Y) alloy cos cosine of an angle cot cotangent of an angle CP commercially pure CRS cold rolled steel CRT cathode ray tube CTE coefficient of thermal expansion; see also ╬▒ (alpha) CVD chemical vapor...
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001104
EISBN: 978-1-62708-162-7
.... This article discusses the manufacture, microstructure, composition, classifications, and physical and mechanical properties of cemented carbides, as well as their machining and nonmachining applications. It examines the relationship between the workpiece material, cutting tool and operational parameters...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0006548
EISBN: 978-1-62708-180-1
... modulus or modulus of elasticity; energy E elastic or storage modulus E viscous or loss modulus EAC environmentally assisted cracking EBSP electron backscattered pattern ECT equicohesive temperature EDM electric discharge machining EDS energy dispersive spectroscopy EDX energy-dispersive x-ray (analysis...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.9781627081801
EISBN: 978-1-62708-180-1
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003271
EISBN: 978-1-62708-176-4
... Abstract This article describes the principal methods for macroindentation hardness testing by the Brinell, Vickers, and Rockwell methods. For each method, the test types and indenters, scale limitations, testing machines, calibration, indenter selection and geometry, load selection...
Series: ASM Handbook
Volume: 4E
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.hb.v04e.a0006282
EISBN: 978-1-62708-169-6
... The predominant mode of plastic deformation in titanium is slip. The most common crystallographic slip planes in hexagonal (alpha, or ╬▒) titanium are the basal, prismatic, and pyramidal. The planes operating during deformation depend on alloy composition, temperature, grain size, and crystal orientation...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004035
EISBN: 978-1-62708-185-6
... to simplify geometries while minimizing tolerance stack-ups. The method also facilitates inspection liaison between vendors and users because fixturing is easy to duplicate and tooling points are consistent from forging to finish-machined part. The article focuses on the most common dimensional tolerances...