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flaw detection

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Published: 01 April 2013
Fig. 5 Schematic of a typical rotating type ultrasonic flaw detection system. Source: Ref 2 More
Image
Published: 01 April 2013
Fig. 7 Principle of ultrasonic flaw detection for cold drawn wires using three detection mode probes. Source: Ref 2 More
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Published: 01 April 2013
Fig. 11 Eddy current flaw detection method for cold-drawn hexagonal bars. (a) Location of artificial flaws ranging from 0.5 to 19 mm (0.020 to ┬ż in.) below probe position. (b) Schematic of setup for standard voltage comparison (encircling coil) method (left) and plot of signals obtained More
Image
Published: 01 April 2013
Fig. 15 Schematic of eddy current flaw detection system used to inspect sheared bolt illustrated in Fig. 14 . Source: Ref 2 More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720183
EISBN: 978-1-62708-305-8
... Abstract Liquid penetrant, magnetic particle, and eddy current inspection are used to detect surface flaws. This chapter is a detailed account of the physical principles, process description, equipment requirements, selection criteria, advantages, limitations, and applications of these surface...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720393
EISBN: 978-1-62708-305-8
... evaluation methods to flaw detection in P/M parts. The nondestructive evaluation methods covered are mechanical proof testing, metallography, liquid penetrant crack detection, filtered particle crack detection, magnetic particle crack inspection, direct current resistivity testing, x-ray radiography...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720321
EISBN: 978-1-62708-305-8
... Abstract This chapter focuses on the inspection of steel bars for the detection and evaluation of flaws. The principles involved also apply, for the most part, to the inspection of steel wire. The nondestructive inspection methods discussed include magnetic particle inspection, liquid penetrant...
Image
Published: 01 April 2013
Fig. 4 Schematic showing position of probe relative to flaw inside of bar and resulting wave display obtained for two methods of ultrasonic flaw detection. (a) Normal beam method. (b) Angle beam method. Wave display nomenclature: T, transmit pulse; S, surface reflection echo; F 1 , flaw echo More
Image
Published: 01 April 2013
Fig. 23 Types and applications of coils used in eddy current inspection. (a) Probe type coil applied to a flat plate for crack detection. (b) Horseshoe shape, or U-shape, coil applied to a flat plate for laminar flaw detection. (c) Encircling coil applied to a tube. (d) Internal, or bobbin More
Image
Published: 01 April 2013
Fig. 10 Plot of eddy current signal output versus flaw depth to gage detectability of flaws in cold drawn bars. Source: Ref 2 More
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Published: 01 April 2013
Fig. 18 Coil assembly used for the simultaneous detection of flaws and of variation in composition, structure, and hardness in steel bars. Dimensions in inches. Source: Ref 1 More
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Published: 01 April 2013
Fig. 7 Schematic of flaws and their x-ray images. Defect types that can be detected by x-ray radiography are those that change the attenuation of the transmitted x-rays. Source: Ref 4 More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720345
EISBN: 978-1-62708-305-8
... applications of the nondestructive inspection of tubular products are: Detection and evaluation of flaws Sorting of mixed stock Measurement of dimensions Comparative measurement of specific physical and mechanical properties Of these, the primary application is the detection and evaluation...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720267
EISBN: 978-1-62708-305-8
... Abstract Ultrasonic inspection is a nondestructive method in which beams of high frequency acoustic energy are introduced into a material to detect surface and subsurface flaws, to measure the thickness of the material, and to measure the distance to a flaw. This chapter begins with an overview...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720365
EISBN: 978-1-62708-305-8
... Abstract In forgings of both ferrous and nonferrous metals, the flaws that most often occur are caused by conditions that exist in the ingot, by subsequent hot working of the ingot or the billet, and by hot or cold working during forging. The inspection methods most commonly used to detect...
Image
Published: 01 April 2013
Fig. 6 Dual set of six circumferentially mounted probes used to ultrasonically detect flaws in cold drawn hexagonal bars. (a) Normal beam method to detect flaws deep inside bar. (b) Angle beam method to detect surface and near-surface flaws. Source: Ref 2 More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 1997
DOI: 10.31399/asm.tb.wip.t65930085
EISBN: 978-1-62708-359-1
... of the inherent unreliability of many techniques, a wide tolerance between critical defect size and flaw detection threshold is needed in manufacturing. However, the incorporation of fitness-for-purpose philosophies into quality control is having the effect of reducing this tolerance and placing greater emphasis...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270019
EISBN: 978-1-62708-301-0
.... Nondestructive evaluation (NDE) is employed to detect at an early stage subsurface flaws and internal flaws in the component, their type, size, orientation, and location. In a failed component, there may still be flaws similar to the one that was primarily responsible for the failure. These flaws can be detected...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 1997
DOI: 10.31399/asm.tb.wip.t65930057
EISBN: 978-1-62708-359-1
... welded pipe and tubing because eddy currents are relatively insensitive to flaws that do not extend to the surface or into the near-surface layer. Magnetic particle inspection and liquid penetrant inspection are not suitable for detecting subsurface gas porosity. These methods are restricted...
Image
Published: 01 April 2013
Fig. 12 Plot of eddy current signal output versus flaw depth to measure detectability of flaw, specifically material flaws (open circles) and process induced cracks (closed circles), in cold drawn hexagonal bars. Source: Ref 2 More