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Ralph S. Shoberg
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Joel W. House, Peter P. Gillis
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Gary R. Halford, Bradley A. Lerch, Michael A. McGaw
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Specimen for the wedge-forging test. (a) as-machined specimen. (b) Specimen...
Available to Purchase
in Bulk Formability of Steels
> Properties and Selection: Irons, Steels, and High-Performance Alloys
Published: 01 January 1990
Fig. 6 Specimen for the wedge-forging test. (a) as-machined specimen. (b) Specimen after forging
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Image
Wedge test specimen. (a) As-machined specimen. (b) Specimen after deformati...
Available to PurchasePublished: 01 January 2005
Fig. 8 Wedge test specimen. (a) As-machined specimen. (b) Specimen after deformation. Source: Ref 12
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Image
Specimens for the wedge test. (a) As-machined specimen. (b) Specimen after ...
Available to PurchasePublished: 01 January 2005
Image
Specimens for the wedge test. (Top) As-machined specimen. (Bottom) Specimen...
Available to PurchasePublished: 01 January 2005
Fig. 2 Specimens for the wedge test. (Top) As-machined specimen. (Bottom) Specimen after forging
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Details of the ASTM E 618 machinability test specimen and the relative posi...
Available to PurchasePublished: 01 January 1989
Fig. 32 Details of the ASTM E 618 machinability test specimen and the relative positions of the form tools
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Book Chapter
Mechanical Testing of Threaded Fasteners and Bolted Joints
Available to PurchaseSeries: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003323
EISBN: 978-1-62708-176-4
... fasteners include product hardness, proof load, axial and wedge tension testing of full-sized products, tension testing of machined test specimens, and total extension at fracture testing. Product hardness, proof load, and cone proof-load test are the test methods for internally threaded fasteners...
Abstract
This article provides an overview of the relationships between torque, angle-of-turn, tension, and friction and explains how they are measured and evaluated. It focuses on the principle, test equipment, procedure, evaluation, and test report of various testing methods, namely, friction coefficient testing, torque tension testing, locknut testing, and angular ductility and rotational capacity tests. The article reviews the basic methods and fundamental principles for mechanical testing of externally and internally threaded fasteners and bolted joints. The test methods for externally threaded fasteners include product hardness, proof load, axial and wedge tension testing of full-sized products, tension testing of machined test specimens, and total extension at fracture testing. Product hardness, proof load, and cone proof-load test are the test methods for internally threaded fasteners. The article concludes with a description of torque-angle signature analysis and the specification of measurement accuracy for torque and clamp force.
Image
Setup for producing a tungsten test specimen by electrical discharge machin...
Available to PurchasePublished: 01 January 1989
Fig. 8 Setup for producing a tungsten test specimen by electrical discharge machining Operations Saw 12.5 mm (0.50 in.) thick tungsten plate into blanks, using a diamond-edge band saw Load blank into fixture and close components of assembly Electrical discharge machine contour
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Image
Use of tongs to place a specimen in a Charpy impact testing machine for tes...
Available to PurchasePublished: 01 January 2000
Image
Reciprocating-bending fatigue-testing machine, and typical specimen (at low...
Available to PurchasePublished: 01 December 1998
Fig. 40 Reciprocating-bending fatigue-testing machine, and typical specimen (at lower left) for testing of sheet
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Book Chapter
Testing Machines and Strain Sensors
Available to PurchaseSeries: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003259
EISBN: 978-1-62708-176-4
... and describes gripping techniques of test specimens. It analyzes test diagnostics and reviews the use of computers for gathering and reducing data. Emphasis is placed on universal testing machines with separate discussions of equipment factors for tensile testing and compressing testing. The influence...
Abstract
The article provides an overview of the various types of testing machines: gear-driven or screw-driven machines and servohydraulic machines. It examines force application systems, force measurement, and strain measurement. The article discusses important instrument considerations and describes gripping techniques of test specimens. It analyzes test diagnostics and reviews the use of computers for gathering and reducing data. Emphasis is placed on universal testing machines with separate discussions of equipment factors for tensile testing and compressing testing. The influence of the machine stiffness on the test results is also described, along with a general assessment of test accuracy, precision, and repeatability of modern equipment.
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003320
EISBN: 978-1-62708-176-4
... twisting moment is applied through the axis of the specimen. In this type of machine, the normal stress in the rotating test piece is continuously varied between positive and negative stress of equal magnitudes. Furthermore, the steady shearing stress is simultaneously induced in the specimen by connecting...
Abstract
The main objective for the study of combined-stress fatigue is to obtain fatigue data for axles and to find the criterion for fatigue limit under combined stress. This article begins with a description of the stress states of combined stress and stress fields near crack tips. It provides an account of the various biaxial and multiaxial fatigue testing methods, specimen geometries, and stress intensity factors important in the study multiaxial fatigue. Widely used test methods are the torsion-rotating bending fatigue test and biaxial and triaxial fatigue tests. Common specimen geometries include rectangular plate specimens, cruciform specimens, compact tension shear specimens, compact shear specimens, mode II crack growth specimen, circumferentially notched cylindrical specimens, tubular specimens containing a slit, and solid cylindrical specimens containing a small hole or initial crack.
Book Chapter
Fatigue, Creep Fatigue, and Thermomechanical Fatigue Life Testing
Available to PurchaseSeries: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003314
EISBN: 978-1-62708-176-4
... Abstract This article describes the phenomena of crack initiation and early growth. It examines specimen design and preparation as well as the apparatus used in crack initiation testing. The article provides descriptions of the various commercially available fatigue testing machines: axial...
Abstract
This article describes the phenomena of crack initiation and early growth. It examines specimen design and preparation as well as the apparatus used in crack initiation testing. The article provides descriptions of the various commercially available fatigue testing machines: axial fatigue testing machines and bending fatigue machines. Load cells, grips and alignment devices, extensometry and strain measuring devices, environmental chambers, graphic recorders, furnaces, and heating systems of ancillary equipment are discussed. The article presents technologies available to accomplish closed loop control of materials testing systems in performing standard materials tests and for the development of custom testing applications. It explores the advanced software tools for materials testing. The article includes a description of baseline isothermal fatigue testing, creep-fatigue interaction, and thermomechanical fatigue. The effects of various variables on fatigue resistance and guidelines for fatigue testing are also presented.
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003242
EISBN: 978-1-62708-199-3
... dynamometer stand), (3) machine subassembly test stand trials (e.g., the transmission of the truck on a dynamometer), (4) sub-scale tests (e.g., a small version of the transmission on a dynamometer), (5) component tests (e.g., a gear-testing machine), and (6) simple specimen tests (e.g., a simple curved...
Abstract
Wear is mechanically-induced surface damage that results in the progressive removal of material. Because different types of wear occur in machinery, many different types of wear tests have been developed to evaluate its effects on materials and surface treatments. This article provides an explanation on mechanisms, forms (sliding, impact, and rolling) and the causes of wear. It describes the wear measuring methods, including the mass loss method, wear width method, and scar depth method. The units used to report wear vary with type of wear and with the purpose for which the data are to be used. Listing the considerations of tribosystem analysis, the article provides information on selection of ASTM wear test methods grouped by wear type. The article concludes by tabulating the testing geometries and parameters that are commonly controlled and reported when conducting wear tests.
Book Chapter
Impact Toughness Testing
Available to PurchaseSeries: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003308
EISBN: 978-1-62708-176-4
.... It reviews the requirements of test specimens, test machine, testing procedure and machine verification, application, and determination of fracture appearance and lateral expansion according to ASTM A370, E 23, and A 593 specifications. In addition, the article includes information on the instrumentation...
Abstract
Measurement and analysis of fracture behavior under high loading rates is carried out by different test methods. This article provides a discussion on the history and types of notch-toughness tests and focuses exclusively on notch-toughness tests with emphasis on the Charpy impact test. It reviews the requirements of test specimens, test machine, testing procedure and machine verification, application, and determination of fracture appearance and lateral expansion according to ASTM A370, E 23, and A 593 specifications. In addition, the article includes information on the instrumentation, standards and requirements, and limitations of instrumented Charpy impact test, which is carried out in specimens with induced fatigue precrack. The article concludes with a review of the requirements of drop weight testing and the specimens used in other notch-toughness tests.
Image
Published: 01 November 1995
Fig. 4 Tension test specimens for sheet, plate, and molded plastics. Source: Ref 14 Specimen dimensions for thickness T , mm (in.) (a) Dimensions (see drawings) 7 (0.28) or under Over 7 to 14 (0.28 to 0.55) 4 (0.16) or under Tolerances Type I Type II Type III Type IV
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Image
Published: 01 November 1995
Fig. 4 Tension test specimens for sheet, plate, and molded plastics. Source: Ref 14 Specimen dimensions for thickness T , mm (in.) (a) Dimensions (see drawings) 7 (0.28) or under Over 7 to 14 (0.28 to 0.55) 4 (0.16) or under Tolerances Type I Type II Type III Type IV
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Image
Typical fatigue life test specimens. (a) Torsional specimen. (b) Rotating c...
Available to PurchasePublished: 01 January 1996
Fig. 9 Typical fatigue life test specimens. (a) Torsional specimen. (b) Rotating cantilever beam specimen. (c) Rotating beam specimen. (d) Plate specimen for cantilever reverse bending. (e) Axial loading specimen. The design and type of specimen used depend on the fatigue testing machine used
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Image
Typical fatigue life test specimens. (a) Torsional specimen. (b) Rotating c...
Available to PurchasePublished: 01 December 1998
Fig. 37 Typical fatigue life test specimens. (a) Torsional specimen. (b) Rotating cantilever beam specimen. (c) Rotating beam specimen. (d) Plate specimen for cantilever reverse bending. (e) Axial loading specimen. The design and type of specimen used depend on the fatigue testing machine used
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Image
Comparison of test results from two Charpy impact machines manufactured by ...
Available to PurchasePublished: 01 January 1990
Fig. 40 Comparison of test results from two Charpy impact machines manufactured by two companies. All 1200 specimens were made from a single heat of aircraft quality 4340 steel. Specimens were hardened and tempered to three hardness levels: 43 to 46, 32.5 to 36.5, and 26 to 29 HRC. On each
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Book Chapter
7076 High-Strength Forging Alloy
Available to PurchaseSeries: ASM Handbook
Volume: 2B
Publisher: ASM International
Published: 15 June 2019
DOI: 10.31399/asm.hb.v02b.a0006738
EISBN: 978-1-62708-210-5
... properties of 7076-T61 Minimum tensile properties of 7076-T61 Tensile strength 480 MPa (70 ksi) Yield strength, 0.2% 413 MPa (60 ksi) Elongation, % in 50 mm (2 in.) 14.0% Brinell hardness, 500 Kg 140 Elongation is 14% from standard ½-inch diameter test specimens machined from...
Abstract
This datasheet provides information on composition limits, processing effects on physical and mechanical properties, and fabrication characteristics of high-strength forging alloy 7076.
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