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Gun drilling

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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c0046210
EISBN: 978-1-62708-235-8
... by gun drilling, giving rise to surface defects. The fracture surface was characteristic of fatigue in that it was flat, relatively shiny, and exhibited beach marks. The crack surface was at a 45 deg angle to the axis of the shaft, indicating dominant tensile stresses. The material was the French...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003505
EISBN: 978-1-62708-180-1
... of a metalworking machine known as an upsetter . A parallel vertical wall left a limited amount of space in which mechanics could work. A pilot hole was drilled with a 0.476 cm (0.19 in.) drill. The drill was held in a Jacobs chuck in a portable drill press that, in turn, was held to the workpiece...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003569
EISBN: 978-1-62708-180-1
... disks, vibrating devices, or venturi tubes to achieve the required fluid velocities ( Ref 56 ). Another device used to produce cavitation and erosion is the liquid gun, which projects short, discrete slugs of liquid out of a nozzle onto the specimen ( Ref 57 ). Details of other nonstandard test...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003573
EISBN: 978-1-62708-180-1
... as it deforms. Soft iron shot, on the other hand, is much harder than lead and does not deform significantly. More of the impact energy is absorbed by the barrel when iron shot is used, producing higher stresses. In this instance, had the gun barrel been of more uniform wall thickness around its...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006797
EISBN: 978-1-62708-295-2
... in any case. Methods for measurement and study of residual stress include hole drilling, x-ray diffraction, and neutron diffraction techniques (e.g., see the articles “Residual Stress Measurements” in Mechanical Testing and Evaluation , Volume 8 of ASM Handbook , 2000, and “X-Ray Diffraction Residual...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003522
EISBN: 978-1-62708-180-1
... dimples on the surface of a tensile fracture of a high-strength steel. The small carbide particles where local rupture and void formation initiated are apparent. Fig. 13 Fracture surface where a welded connection failed in a drill pipe connection. (a) General view of part of the fracture surface...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006757
EISBN: 978-1-62708-295-2
..., impinges on a surface, the secondary ions can be detected using a mass spectrometer. A quadrupole mass spectrometer can be installed on an existing Auger system fitted with an ion etching gun, and simultaneous AES and SIMS analyses can be made. Stand-alone SIMS systems can provide improved performance...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003508
EISBN: 978-1-62708-180-1