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polymer pressure bars

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Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003178
EISBN: 978-1-62708-199-3
... 1 mm (0.02 to 0.04 in.) in diameter. BARS are bent by four basic methods: draw bending, compression bending, roll bending, and stretch bending. In draw bending, the workpiece is clamped to a rotating form and drawn by the form against a pressure die ( Fig. 7 ). The pressure die can be either...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003046
EISBN: 978-1-62708-200-6
... and relatively simple. If current density, heating time, and consolidation pressure are controlled, resistance heating can produce lap shear strengths above 20 MPa (3 ksi) in APC-2. Resistance heating is most adaptable for patching repair. Induction and resistance heating also allow control of the...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006478
EISBN: 978-1-62708-190-0
... Abstract This article introduces the principal methodologies and some advanced technologies that are being applied for nondestructive evaluation (NDE) of fiber-reinforced polymer-matrix composites. These include acoustic emission, ultrasonic, eddy-current, computed tomography, electromagnetic...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003023
EISBN: 978-1-62708-200-6
... final configuration and to establishing appropriate applications of the material (such as polymeric foams as insulating structures). In thermoplastic processing, heat energy is either transferred or exchanged in the material to effect sufficient fluidity such that the polymer can be shaped and/or...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003025
EISBN: 978-1-62708-200-6
... useful life of the specimen or the service item. These prefailure manifestations include crazes, cracks, and stress whitening. Crazes appear to be similar to cracks when viewed by the naked eye, but they differ in that the gap between the faces is bridged by fibers of drawn polymeric material. They are...
Series: ASM Handbook
Volume: 4B
Publisher: ASM International
Published: 30 September 2014
DOI: 10.31399/asm.hb.v04b.a0005932
EISBN: 978-1-62708-166-5
... polymer itself but to the introduction of nutrient contaminants. Microbiological treatment such as is employed with other aqueous metal working fluids generally will keep under control this foreign biological activity. Polyethyl oxazoline (PEOX) quenchants are synthesized from the polymerization of...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003024
EISBN: 978-1-62708-200-6
... Abstract This article discusses the deformation and viscoelastic characteristics of plastics as polymeric materials, focusing on the test methods used for the evaluation of their mechanical properties, methods available for analytically predicting the deformation response of polymers, and the...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003054
EISBN: 978-1-62708-200-6
... solution can lead to flocculation. Polymeric solutions have been used extensively to stabilize colloidal dispersions ( Ref 19 , 20 ). Solid bridges may be formed during drying in crystallizing salts. The adhesive strength of agglomerates bonded by these salt bridges depends on the strength of these salt...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003041
EISBN: 978-1-62708-200-6
... resin flow from edges Rubber neoprene cork tape with pressure-sensitive adhesive, silicone rubber, PTFE or metal bars Vacuum bag Applies autoclave pressure Various types for different cure temperatures, some semipermanent silicone rubber Fig. 1 Simple layup...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004005
EISBN: 978-1-62708-185-6
... and polymer lubricants. The article describes several procedures for extruding specific steel parts such as tubular parts and stepped shafts. It lists problems such as tool breakage and galling or scoring of tools and explains cold extrusion of aluminum, copper, and nickel alloy parts. The article...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003010
EISBN: 978-1-62708-200-6
... phthalate can be prepared by the direct esterification of allyl alcohol and phthalic anhydride ( Fig. 1 ) and then partially polymerized to a fusible resin or prepolymer by being heated with a free-radical initiator. This diallyl phthalate prepolymer, combined with a free-radical initiator and various...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006466
EISBN: 978-1-62708-190-0
... defects in metals, ceramics, glasses, polymers, and composites with examples. acoustic microscopy ceramics C-mode scanning acoustic microscopy composites glasses polymers scanning acoustic microscopy scanning laser acoustic microscopy polymers THE GENERAL TERM acoustic microscopy is...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003005
EISBN: 978-1-62708-200-6
... materials, including ferrous alloys, nonferrous alloys, ceramics, cermets and cemented carbides, engineering plastics, polymer-matrix composites, metal-matrix composites, ceramic-matrix and carbon-carbon composites, and reviews their general property characteristics and applications. It describes the...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003009
EISBN: 978-1-62708-200-6
... temperature range. Polyvinylidene fluoride resin is produced by emulsion or suspension polymerization of vinylidene fluoride. It can be extruded and injection molded on typical polyvinyl chloride (PVC) machines. It is available as dry powder, pellets, and as a solvent-base dispersion for coating...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003063
EISBN: 978-1-62708-200-6
.... In the mid-1970s, Japanese researchers produced SiC fibers by controlled pyrolysis of silicon-based polymeric precursors ( Ref 24 , 25 ). Their steps were to: Characterize the polymer (yield, molecular weight, purity, etc.) Melt spin the polymer into a precursor fiber Cure the precursor...
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006684
EISBN: 978-1-62708-213-6
... Abstract The reflected light microscope is the most commonly used tool to study the microstructure of metals, composites, ceramics, minerals, and polymers. For the study of the microstructure of metals and alloys, light microscopy is employed in the reflected-light mode using either bright...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003044
EISBN: 978-1-62708-200-6
... data has proved more difficult, and therefore it is often necessary to resort to characterization of laminate strength properties. Thus, basic tensile testing is divided into lamina and laminate testing. There also are specimen differences between polymeric-matrix and metal-matrix composites that...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003018
EISBN: 978-1-62708-200-6
... operations, clamp bars are necessary to secure the front and back ends of the sheet. There are two kinds of chain transport systems. One is the pressure transport chain system, common on older machines and widely used for foam. The other is the newer, more versatile pin chain feed system, which works well...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003999
EISBN: 978-1-62708-185-6
... microstructure mill product, such as billets or bars, and secondary working refers to further forging of mill product into final component configurations. billets deformation die materials forging grain structure heating heating practice lubricants microstructure nickel-base alloy NICKEL is...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004008
EISBN: 978-1-62708-185-6
... presents an overview of the processes, equipment, dies and die materials, and lubrication associated with drawing of rod, wire, bar, and tube. The article also provides a discussion on the design considerations and manufacturing of commercial superconducting multifilamentary conductors. bar drawing...