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cutting force

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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c0006409
EISBN: 978-1-62708-217-4
... to two threads cut full depth ( Fig. 1e ). It was concluded that the pitostatic system connectors failed by SCC. The corrodent involved could not be conclusively determined. The stress was caused by forcing the improperly threaded female nut over its fully threaded male counterpart to effect a seal...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003560
EISBN: 978-1-62708-180-1
... dynamometer. When the cutting force deviates from the steady-state constant force condition, the bit must be resharpened or replaced. Feeds and speeds of the drilling operation in combination with changing the cutting angle of the drill bits may also lower the number of fractured bits. In this example...
Book Chapter

Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006790
EISBN: 978-1-62708-295-2
... an increase in cutting and tearing modes, associated with insufficient elastic recovery. The nominal force level may also determine the level of constraint experienced by abrasive particles. Under low-stress abrasive conditions, the abrasive particles can be free to rotate as they move across the surface...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001729
EISBN: 978-1-62708-217-4
... forced against a blunt metal edge by a motion upward and to the left. (The edge would have to be blunt because of the manner in which the aluminum has been pushed out of the way.) Also shown are grooves or scoring marks made by the cutting edge revealed when the cut was opened. These grooves indicate...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.machtools.c0091853
EISBN: 978-1-62708-223-5
... plastically deform under the compressive force of the quartz. The angle that the cutting edge of the particle makes with the wear surface is often referred to as the rake angle in cutting during machining operations. The plowing mechanism of material removal is illustrated in Fig. 5 . In this case...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001058
EISBN: 978-1-62708-214-3
...Abstract Abstract A white cast iron water-line plug in a fire sprinkler systems split during leak repair. Examination revealed no material flaws, fatigue, or excessive corrosion. The plug head exhibited signs of excessive loads used in attempts to force the plug farther into the pipe...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001575
EISBN: 978-1-62708-217-4
... forcely separated from the bushing. The gear teeth section was obtained by cutting along a plane normal to shaft axis and passing through the teeth (ref. as Section A). The lower bushing section was obtained by cutting along a plane normal to shaft axis. At the cutting, the bushing had fractured...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.conag.c0047570
EISBN: 978-1-62708-221-1
.... The composition specified for the pipe steel was 0.25C-0.98Mn-3.52Ni-1.34Cr-0.24Mo, which approximates a 9300 steel with high molybdenum. Investigation supported the conclusion that the conveyor pipe failed by brittle fracture, which was attributed to the stresses induced in forcing the circular flange over...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001838
EISBN: 978-1-62708-241-9
... could be found. One of the cracks was forced open in the laboratory by bending to 180° a strip cut from the pipe wall ( Fig. 7 ). Microfractographical studies by means of the SEM did not reveal evidence for LME-causing foreign heavy metals or other grain boundary irregularities, such as grain...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006765
EISBN: 978-1-62708-295-2
... specimens. Indeed, the initial sectioning operation may be quite a challenge. Bulk samples for subsequent laboratory sectioning may be removed from larger pieces using methods such as core drilling, band- or hacksawing, flame cutting, or similar methods. Flame or torch cutting may be the only recourse...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003532
EISBN: 978-1-62708-180-1
... preparation sequence must be repeated. Instead of doing this, most metallographers repeat the final step manually and then re-etch the specimen. Individual force machines have a holder that does not hold the specimen rigidly. Specimens are placed inside a hole cut into a holder, and a piston comes down...
Book Chapter

Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001412
EISBN: 978-1-62708-229-7
.... Non-metallic inclusions in the blade material playing a minor part. Cracking (fracturing) Loads (forces) Nonmetallic inclusions Stresses Turbine blades Vibration Ferritic stainless steel (Other, general, or unspecified) fracture The failure described occurred in a 45,000 kW, 3,000...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001091
EISBN: 978-1-62708-214-3
... . The fracture surface is, for the most part, normal to the axis of the shaft. his would be the plane of maximum tension due to tensile forces and the plane of maximum shear due to torsion. There is no shear lip around the periphery of the fracture, nor is there any evidence of necking. This indicates either...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006814
EISBN: 978-1-62708-329-4
... Fig. 1 (a) Welded assemblies may contain cracks not completely severed. (b) Selective cutting of the part may be needed to reveal the fracture surface to find the point of crack initiation. (c) The failure initiated as fatigue at the weld toe. Fig. 2 The stress distribution...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001273
EISBN: 978-1-62708-215-0
... of water The most extensive cracking was observed in the rod nuts and in the portions of the rod which were covered by the nuts. Cracking was transgranular with extensive branching, and some corrosion occurred along the crack paths. The clamping force from the nuts used on both sides of the supported...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001216
EISBN: 978-1-62708-217-4
...”. The flashes are the residual stamped surface. a). 4 × b) 30 × Figures 4 show a good stamping which however has been pressed out in the form of a cylindrical prominence. In this case the dimpling force was too great and the stamping cylinder force too low. The cladding was cut by the edge of the anvil...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001825
EISBN: 978-1-62708-241-9
... source of the stresses causing the fatigue fractures was bending forces on the tube. The failed tube section had numerous pits in the outer surface within a localized area on one side adjacent to the header weld. The pits were generally cup shaped with well-defined edges. The morphology of the pits...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c9001420
EISBN: 978-1-62708-220-4
...-Cr-Mo steel shell and two end plates. It was designed to spin at 2200 rpm, using centrifugal force to expel liquids through nearly 3000 drilled holes in the shell wall. Investigators found that the shell separated completely from the bottom plate. The top plate, though it cracked radially, remained...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001515
EISBN: 978-1-62708-229-7
... of the crack in the Bruce 2 N06 pressure tube. Fig. 3 Flap of material on the inside surface of the Bruce 2 N06 pressure tube, in he outlet rolled joint region. Residential Stress Measurements During assembly of a fuel channel, an internal tube expander/ roller forces the pressure tube...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.usage.c0046242
EISBN: 978-1-62708-236-5
... in the part. A gauss-meter probe was inserted into the cut, and a reading of 2000 G was obtained, which is a high residual flux density for steel (for comparison, magnetic steels have a flux density of about 9000 G). A field test around the boiler-feed pump indicated virtually no electric forces that could...