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mechanical clamps

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.fdmht.t52060223
EISBN: 978-1-62708-343-0
... are significantly less dense and deform only elastically, fracturing with nil ductility. The fiber/matrix chemical bonding may be classed as S, W, or N (strong, weak, or no chemical bond). In the latter case, mechanical clamping forces substitute for bonding, and friction provides for interfacial shear strength...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.omfrc.t53030023
EISBN: 978-1-62708-349-2
... that allow easy mounting of the specimens by mechanical clamping or grips. The benefit is that after polishing, the specimens may be removed and directly viewed. Likewise, the original sample identifications are easier to discern. An automated polishing head having three 35 by 75 mm (1.38 by 2.95...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.mgppis.t60400169
EISBN: 978-1-62708-258-7
... in a ferrite matrix away from the cut surface. Fine pearlite (b) and martensitic (c) regions near the cut surface indicating heating due to the absence of water coolant. 4% picral etch. 500× Fig. 7.20 Typical mechanical clamps holding 20 sheet specimens (left) and a rod specimen (right). 1...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1984
DOI: 10.31399/asm.tb.mpp.t67850060
EISBN: 978-1-62708-260-0
... × magnification illustrating the degree of edge rete achievable with the epoxy sandwich mounting technique. (From Nelson and Slepian, Ref. 17, coi of Dr. Riederer-Verlag, GmbH.) Figure 2-5 a Example of excellent edge retention achievable with mechanical clamps. No spacers between sheet metal samples...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610263
EISBN: 978-1-62708-303-4
... from torque applied to a bolted assembly. Source: Ref 9 Fig. 8 Installation of fastener with breakaway nut to control clamp-up. Source: Ref 10 Fig. 1 Fatigue strength of carbon steel structural joints. Source: Ref 1 Fig. 2 Axial fatigue strength at 10 7 cycles...
Book Chapter

By Eren Billur
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smff.t53400181
EISBN: 978-1-62708-316-4
... (tank), electric motor, pump, valves, and cylinder ( Fig. 12.1 ). Hydraulic presses are more versatile than mechanical presses, because the force and stroke can be controlled easily. These presses are load-restricted machines; that is, their capability for carrying out a forming operation is limited...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870307
EISBN: 978-1-62708-314-0
... and 240- to 320-grit silicon carbide paper for finishing. In any mechanically fastened joint, high clamp-up forces are beneficial to both static and fatigue strength. High clamp-up produces friction in the joint, delays fastener cocking, and reduces joint movement or ratcheting during fatigue loading...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smff.t53400129
EISBN: 978-1-62708-316-4
... for attaching the bottom die to the press. A drive mechanism (3) that moves the slide (4) at a right angle to the bolster The gibs (5) that guide the reciprocating motion of the slide and ensure the parallelism of the slide to the bolster Fig. 9.2 Terminology used for (a) basic press...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290061
EISBN: 978-1-62708-306-5
... current Mechanical system, which consists of the frame, fixtures, and other devices that hold and clamp the workpiece and apply the welding force Specifications for resistance welding equipment have been standardized by the Resistance Welder Manufacturers Association, and specifications...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290207
EISBN: 978-1-62708-306-5
... on an internal screw mechanism to deform the head and pull it up tight against the structure, whereas the pull-type blind fastener uses a pure pulling action to form the backside head. Higher clamp-up forces and larger footprints are obtainable with the threaded-core bolt, leading to longer fatigue life. However...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smfpa.t53500179
EISBN: 978-1-62708-317-1
.... This chapter discusses the basic methods of tube hydroforming and the underlying process mechanics. It explains how to determine if a material is a viable candidate and whether it can withstand preforming or bending operations. It describes critical process parameters, such as interface pressure, surface...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2005
DOI: 10.31399/asm.tb.gmpm.t51250077
EISBN: 978-1-62708-345-4
.... Engineering plastics, which are viscoelastic, do not respond to mechanical stress in the linear, elastic manner for which most designers have developed an intuitive feel. In many applications, engineering plastics exhibit a more complex property mix than do metals. Because engineering plastics, as a family...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smfpa.t53500289
EISBN: 978-1-62708-317-1
... in Fig. 14.9 . Fig. 14.9 Tog-L-Loc mechanical clinching. Source: Ref 14.16 The Tog-L-Loc process is completed in the following stages: Pressure pad around the punch clamps the material (prevents upward extrusion of metal around punch) Punch draws metal into the die and upsets...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720085
EISBN: 978-1-62708-305-8
...Abstract Abstract This chapter discusses the operating mechanism, applications, advantages, and limitations of Brinell hardness testing, Rockwell hardness testing, Vickers hardness testing, Scleroscope hardness testing, and microhardness testing. In addition, the general precautions...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.tb.sfa.t52780171
EISBN: 978-1-62708-268-6
... refueling system includes a guillotine. The guillotine (located at the end of the aerial refueling system) surrounds the hose. Its purpose is to cut, clamp, and release the hose if the tanker aircraft pilot so commands. The reason is that if the hose fails to rewind, the guillotine mechanism allows...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870517
EISBN: 978-1-62708-314-0
..., mechanically, for example, with C-clamps, or with a vacuum bag. An autoclave is preferable because it can provide full pressure, for example, 100 psi (700 kPa), and the pressure application is isostatic; however, it does require drying of the entire assembly, usually in an oven, and either envelope bagging...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870285
EISBN: 978-1-62708-314-0
... of 3500 tons, 1500 oz (3200 metric tons, 40 kg). A typical laboratory-size injection molding machine is shown in Fig. 10.23 . The clamping mechanism must have sufficient locking force to resist the tendency of the molten polymer, in motion and under pressure, to force the mold halves apart. Since...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290279
EISBN: 978-1-62708-306-5
... small for laminate thickness, unshimmed gaps or excessive shimmed gaps in joint, or insufficient fastener clamp-up. Fig. 10.7 Composite mechanically fastened joint failure modes. Source: Ref 10.3 Like hole drilling, fastener installation in composites is more difficult and damage prone...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2005
DOI: 10.31399/asm.tb.mmfi.t69540391
EISBN: 978-1-62708-309-6
..., are empirically developed correction factors. Because every product has unique problems of its own, more correction factors of this sort may be needed. Vast amounts of such data, developed by computer or by mechanical testing, have been generated in the industry. These data usually are not available...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2000
DOI: 10.31399/asm.tb.aet.t68260055
EISBN: 978-1-62708-336-2
... and higher speeds to improve physical and mechanical properties of the extrusion. The press requires a rigid structure with a tie rod and platen to withstand the associated stresses. Modern presses use prestressed tie-rod construction with long die stacks to provide minimum deflection to improve...