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punch testing

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Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003241
EISBN: 978-1-62708-199-3
... Abstract This article reviews the various types of mechanical testing methods, including hardness testing; tension testing; compression testing; dynamic fracture testing; fracture toughness testing; fatigue life testing; fatigue crack growth testing; and creep, stress-rupture, and stress...
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 Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0009013
EISBN: 978-1-62708-185-6
... inhomogeneous deformation) Boundary layer lubrication studies Sheet metal forming Tearing (localized necking), wrinkling and earring, Lüders bands, orange peel, fracture Limiting dome height, tensile ( R , n values), punch (forming-limit diagram) Note: Besides thermomechanical testing, a number of...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004017
EISBN: 978-1-62708-185-6
... indentation by flat punches into a metal ( Ref 26 ). The boundaries of the deformation zone change as the aspect ratio h / b (workpiece thickness-to-punch width) increases. For h / b >1, the slip-line field meets the centerline at a point, and for h / b <1 the field is spread over an area nearly as...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004004
EISBN: 978-1-62708-185-6
... size, machining, descaling, cutting to length, and lubricating. It lists the advantages of the cold heading over machining. Materials selection criteria for dies and punches in cold heading are also described. The article provides examples that demonstrate tolerance capabilities and show dimensional...
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
... designed for cold extrusion with high rigidity, accurate alignment, and long working strokes are described. The article details the factors that are critical in cold extrusion: punch design, die design, and tool design. It summarizes the role of lubricants during extrusion of steel, such as soap lubricant...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006445
EISBN: 978-1-62708-190-0
... transformation Even in the simplest PM part geometry—a solid circular cylinder—uniaxial die compaction results in a density distribution in the part if it is over 25 mm (1 in.) in length. Powders do not behave like liquids, and the greater the distance the powder particles are from the moving punch face...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003237
EISBN: 978-1-62708-199-3
... bonding, and forming operations, such as shaft straightening and punch press operations. In general, AE inspection can be considered whenever the process stresses the material and produces permanent deformation. In structural testing, AE inspection is used on pressure vessels, storage tanks, pipelines...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0009004
EISBN: 978-1-62708-185-6
... plasticity analysis methods such as slip-line fields or finite-element analysis. One result of slip-line field analysis that has wide application in workability studies is discussed here. Double indentation by flat punches is a classical problem in slip-line field analysis ( Fig. 20 ). The boundaries of...
Series: ASM Handbook
Volume: 4B
Publisher: ASM International
Published: 30 September 2014
DOI: 10.31399/asm.hb.v04b.a0005940
EISBN: 978-1-62708-166-5
... symmetric die (sketch in Fig. 39 ) in order to produce a symmetric internal material flow. The center hole was drilled instead of forging and punching it. Figure 39 shows the change of the dish slope as a function of the cutting strategy for these eight symmetrically forged disks. The smallest average...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005197
EISBN: 978-1-62708-187-0
... proportions can be used. Steel turnings are more impractical because they are so thin that they readily oxidize high up in the cupola stack. Thin sheet steel has a very low density as received from the source and cannot be used without being compressed into bundles. Compact punchings tend to clog interstitial...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006454
EISBN: 978-1-62708-190-0
... emissivity. In production testing, AE inspection is used to check and control welds ( Ref 1 ), brazed joints ( Ref 2 ), thermocompression bonding ( Ref 3 ), and forming operations such as shaft straightening ( Ref 4 ) and punch-press operations. In general, AE inspection can be considered when the process...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006791
EISBN: 978-1-62708-295-2
... modes of adhesive wear including scoring, scuffing, seizure, and galling, and describes the processes involved in classic laboratory-type and standardized tests for the evaluation of adhesive wear. It includes information on standardized galling tests, twist compression, slider-on-flat-surface, load...
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
... around the upper punch radius. This occurs because the deforming preform is expanding in diameter as the metal flows around the punch corner, even though there is axial compression to help compensate for the circumferential tension. This type of cracking can be avoided by using a preform that fills the...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005417
EISBN: 978-1-62708-196-2
... ( Ref 32 ), extrusion, drawing, and rolling ( Ref 33 ). The methods involving measurement of deformation include uniaxial compression with a tapered punch ( Ref 34 ), measuring the forward slip or the bite angle in rolling ( Ref 35 ), monitoring the foldover in plane-strain compression ( Ref 36 ), or...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003234
EISBN: 978-1-62708-199-3
... oscillograph, and a strip-chart recorder; or recording of signals on paper punch tape and magnetic tape Handling of the part being inspected and support of inspection-coil assembly Elements of a typical inspection system are shown schematically in Fig. 3 . The particular elements in Fig. 3 are for...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001279
EISBN: 978-1-62708-170-2
... of punched holes, the holes may be extruded inward, allowing maximum coverage on the face side but intensifying the burnoff on the reverse side. Fasteners should be provided with flexible washers or gaskets to distribute stresses and prevent crazing of the enamel. Processing requires some means...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003063
EISBN: 978-1-62708-200-6
... Abstract Ceramic-matrix composites (CMCs) are being developed for a number of high-temperature and high-performance applications in industrial, aerospace, and energy conservation sectors. This article focuses on processing, fabrication, testing, and characterization methods of CMCs, namely...
Series: ASM Handbook
Volume: 13B
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v13b.a0003812
EISBN: 978-1-62708-183-2
... of composition, processing, design, fabrication, and external treatments on the corrosion of stainless steels. Various forms of corrosion, namely, general, galvanic, pitting, crevice, intergranular, stress-corrosion cracking, erosion-corrosion, and oxidation, are reviewed. Corrosion testing for...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003104
EISBN: 978-1-62708-199-3
... Abstract Wear of metals occurs by plastic displacement of surface and near-surface material, and by detachment of particles that form wear debris. This article presents a table that contains the classification of wear. It describes the testing and evaluation of wear and talks about the abrasive...