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Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006439
EISBN: 978-1-62708-190-0
... Abstract Machine vision, also referred to as computer vision or intelligent vision, is a means of simulating the image recognition and analysis capabilities of the human eye and brain system with digital techniques. The machine vision functionality is extremely useful in inspection, supervision...
Book

Series: ASM Handbook
Volume: 16
Publisher: ASM International
Published: 01 January 1989
DOI: 10.31399/asm.hb.v16.9781627081887
EISBN: 978-1-62708-188-7
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003241
EISBN: 978-1-62708-199-3
... can be attained by the Brinell hardness test can be greatly influenced by the surface smoothness of the workpiece being tested. The surface of the workpiece on which the Brinell indentation is to be made must be filed, ground, machined, or polished with emery paper (3/0 emery paper is suitable) so...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003243
EISBN: 978-1-62708-199-3
... surface condition of the test specimens, particularly smooth specimens, has a significant effect on the test results. Smooth test specimens are often tested with a mechanically (machined or abraded) or (electro)chemically treated surface. It is very important to avoid or to remove machining marks or...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0009007
EISBN: 978-1-62708-185-6
... modification of the partial-width indentation test, imposes more severe strain in the rib for testing highly ductile materials. In this test, a hole or a slot is machined in the slab-type specimen adjacent to where the anvils indent the specimen. Preferred dimensions of the hole and slot are given in Fig. 13...
Book Chapter

By Peter J. Blau
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003242
EISBN: 978-1-62708-199-3
... sliding wear and impact wear in printing presses, or erosive wear and abrasive wear on extrusion machine screws for plastics. Sometimes wear can operate in the presence of corrosive or chemically-active environments, and synergistic chemo-mechanical effects are possible. Selection of appropriate wear test...
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
... Wedge test specimen. (a) As-machined specimen. (b) Specimen after deformation. Source: Ref 12 An important practical application of this test helps the process engineer determine the optimal reduction-anneal sequence for obtaining a recrystallized structure after breakdown of a cast ingot. In...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0009009
EISBN: 978-1-62708-185-6
... carried out in a servohydraulic machine such as that shown schematically in Fig. 1 . Because strain-rate effects are large in high-temperature testing, it is important to use an apparatus with high machine stiffness. The furnace that surrounds the specimen is usually of resistance, radiant-heating, or...
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
... =0.8 and ε ˙ =0.01 s −1 . Source: Ref 6 Another way to deal with barreling in the compression test is to physically remove it by machining at intervals of strain. Fig. 5 shows the true compressive stress-strain curve for a 4140 alloy steel specimen. The specimen was compressed about...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0009010
EISBN: 978-1-62708-185-6
... explains the cavitation mechanism and failure modes that occur during hot-tension testing. cavitation commercial alloys conventional isothermal hot-tension test ductility Gleeble machine Gleeble testing hot tension testing THE DEVELOPMENT of successful manufacturing techniques for metallic...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003025
EISBN: 978-1-62708-200-6
... within 0.5 to 5 min. Most testing machines are capable of measuring from 0.05 cm/min (0.02 in./min) to 50 cm/min (20 in./min). When measurement is taken at a high strain rate, the elongation at break tends to be shorter and the yield stress tends to increase ( Ref 21 ). The ultimate strength for most...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003057
EISBN: 978-1-62708-200-6
... Abstract This article describes testing and characterization methods of ceramics for chemical analysis, phase analysis, microstructural analysis, macroscopic property characterization, strength and proof testing, thermophysical property testing, and nondestructive evaluation techniques...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003191
EISBN: 978-1-62708-199-3
.... aluminum alloys Brinell hardness carbide size cast iron cutting speed free-machining additives graphite hardness testing inclusion machinability microstructures steels tool life THE MACHINABILITY OF IRON relates specifically to its microstructure. The shape of the graphite in the...
Series: ASM Handbook
Volume: 23
Publisher: ASM International
Published: 01 June 2012
DOI: 10.31399/asm.hb.v23.a0005683
EISBN: 978-1-62708-198-6
... Abstract The interaction of an implant with the human body environment may result in degradation of the implant, called corrosion. This article discusses the corrosion testing of metallic implants and implant materials. The corrosion environments for medical implants are the extracellular human...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003186
EISBN: 978-1-62708-199-3
... most significant practical constraints on machining operations, and in practice most tables of machinability ratings are based on tool life test results. For example, a reference material such as 1212 steel may be assigned a rating of 100, and ratings for other materials are computed from ratios of...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0009008
EISBN: 978-1-62708-185-6
... application of the grid marks. Normally, specimen aspect ratios range between 0.75 and 1.75. Tapered and flanged test specimens are machined cylinders with a section of the original surface remaining at midheight, as shown in comparison with the cylindrical compression-test specimen in Fig. 2 . The height...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003194
EISBN: 978-1-62708-199-3
...; however, a general-purpose machine tool is not regularly available. Each application is engineered to meet the requirements as found by sample test cuts made to determine the exact values for the key operating parameters. Equipment generating pressures up to 415 MPa (60 ksi) is commercially available with...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003044
EISBN: 978-1-62708-200-6
.... Overall specimen length is 229 mm (9 in.), with a test section of 152 mm (6 in.). Specimens should be precision machined from plates with tabs bonded on. The ASTM standard recommends 0°/90° cross-ply tabs made from unidirectional nonwoven E-glass. Other orientations and/or tab materials may prove...
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
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005341
EISBN: 978-1-62708-187-0
... have high intrinsic value or high safety value. It is generally reasonable to test these parts at 100%. PCRT works most efficiently as an on-the-floor factory test. Depending on the circumstances, it can be used with premachined parts or machined parts. The potential limitations to the use of PCRT...