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automated defect recognition

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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
... Abstract The commonly used nondestructive testing of cast products include liquid penetrant inspection, radiographic inspection, fluoroscopic inspection and automated defect recognition, ultrasonic inspection, eddy current inspection, process-controlled resonant testing (PCRT), leak test, and...
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
... production of defective parts. Optical character recognition (OCR)/optical character verification (OCV) applications are in use to read alphanumeric characters and printed labels, as well as barcode readers, which facilitate identification of a part on a conveyer belt, for instance. The majority of...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005292
EISBN: 978-1-62708-187-0
.... , Machine Vision and Robotic Inspection Systems , Nondestructive Evaluation and Quality Control , Vol 17 , ASM Handbook , ASM International , 1989 28. Palanisamy S. , Automated Ultrasonic Classification of Defects in Al Die Castings , NADCA Trans. , 2003 29. Wiencek F...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003417
EISBN: 978-1-62708-195-5
... Abstract Pultrusion is a cost-effective automated process for manufacturing continuous, constant cross-section composite profiles. This article describes process characteristics and advantages of pultrusion. It provides information on the applications of pultrusion and discusses processing...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006463
EISBN: 978-1-62708-190-0
... intervals with the use of large rogue defect sizes accepted by the ASIP community. Automated eddy-current testing (ET) inspection systems were developed to attempt to improve POD over manual systems. This allowed the collection of ET signal magnitudes and corresponding crack sizes (known as “ a -hat,” or â...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006462
EISBN: 978-1-62708-190-0
... foundation for pulse-echo ultrasonic instruments. Thinking evolved from “no flaws can be tolerated” to the recognition that material imperfections nearly always exist at some (small) scale. The key questions for life assessment then become: Are the detected flaws actually defects (both words per their ASTM...
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006680
EISBN: 978-1-62708-213-6
... quantifying phase mixtures in powder samples. It provides information on typical sensitivity and experimental limits on precision of XRPD analysis and other systematic sources of errors that affect accuracy. Some of the factors pertinent to the estimation of crystallite size and defects are also presented...
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
... the structural test applications of acoustic emission inspection to find defects and to assess or ensure structural integrity. acoustic emission inspection nondestructive testing metal-matrix composites quality control defects structural integrity ACOUSTIC EMISSION (AE) is the...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004009
EISBN: 978-1-62708-185-6
... article analyzes the components of a computer controlled system for high-speed mills. Steels and nonferrous materials are also discussed. The article concludes with information on the defects in flat, bar, or shaped products due to heating and rolling practices. bars billets blooms caliber...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001479
EISBN: 978-1-62708-173-3
... structure may reveal defects that result from process- or material-related problems. Before the quality of a soldered joint can be evaluated, the components that are required for the formation of a good soldered joint should be reviewed. These components are the solder, applied heat, and a solderable...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006473
EISBN: 978-1-62708-190-0
... automated sizing to be applied to some specific well-defined inspections. However, the fundamental aspects of procedures and defect sizing discussed in this article remain unchanged. Most traditional practical ultrasonic NDT sizing has been to compare the ultrasonic response of a feature to that from a...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006336
EISBN: 978-1-62708-179-5
... currently very expensive, so it is typically used in prototype development. Automatic defect recognition is a technology where the combination of digital imaging and complex computer algorithms allows for the complete automation of pass/fail decisions to be made in a high-production environment with...
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
... – 309 80. Shepard S.M. and Ahmed T. , Characterization of Active Thermographic System Performance , Proc. SPIE Thermosense XXI , Vol 3700 , April 1999 , p 388 – 392 81. Shepard S.M. , Rubadeux B. , and Ahmed T. , Automated Thermographic Defect Recognition...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003436
EISBN: 978-1-62708-195-5
... S.M. , Rubadeux B , and Ahmed T. , Automated Thermographic Defect Recognition and Measurement , Nondestructive Characterization of Materials IX , American Institute of Physics Conf. Proc. 497 , Green R.E. , Ed., 1999 , p 373 – 378 82. Plotnikov Y.A. and Winfree...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006443
EISBN: 978-1-62708-190-0
... differentiated from unacceptable conditions by threshold discrimination from the electronic output or by pattern recognition and threshold discrimination by image analyses. Discrimination can be automated or performed by a human operator. Discrimination of threshold electronic signals can be automated or gated...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003515
EISBN: 978-1-62708-180-1
... techniques to gain information about defects and various properties of materials, components, and structures—information that is needed to determine their ability to perform their intended function and prevent failure. As defined by ASTM ( Ref 1 ), “NDT is the development and application of technical methods...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002479
EISBN: 978-1-62708-194-8
... activity involving a convoluted mix of people skills and disciplines, machines and equipment, tooling, computers, and automation working together to form a manufacturing system. A manufacturing system comprises a large number of distinct functions and activities ( Fig. 1 ) that interact in a variety of...
Series: ASM Handbook Archive
Volume: 10
Publisher: ASM International
Published: 01 January 1986
DOI: 10.31399/asm.hb.v10.a0001757
EISBN: 978-1-62708-178-8
.... Many modern automated powder diffractometers can provide further data reduction, including peak finding, a tabular listing of peak intensity versus interplanar spacing, search/match software, and other computer utilities. A powder pattern from a single-phase material will have maxima at positions...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006010
EISBN: 978-1-62708-172-6
... defects. Crosby's book Quality Is Free played a large role in launching the quality movement in the United States and Europe ( Ref 1 ). In the last few decades, quality management has moved beyond manufacturing into the service, construction, healthcare, education, and government sectors...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002430
EISBN: 978-1-62708-194-8
... finding that the product was defective in some way, and that the defect was related to the causation of the personal injury or property damage, then monetary damages may be assessed against the maker of that product. That is, the maker is liable for the resulting harm caused by that product. This is the...