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shear cutting

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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.conag.c9001449
EISBN: 978-1-62708-221-1
... dimensions. The plates were given a slight set after flame-cutting to provide a more direct line of pull for the ropes. The fracture surface was bounded by narrow lips, indicative of shear failure. Failure of the anchorage plate was attributed to cracks present at the junctions of the fillet welds...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.auto.c9001498
EISBN: 978-1-62708-218-1
... time.” Only the pinion head had been returned. The shaft portion had been torch-cut away. Chemical analysis along with the microstructure confirmed the specified material was SAE 43BV12 Ni-Cr-Mo alloy steel. The mode of failure was surface contact fatigue through the shear plane subsurface...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001285
EISBN: 978-1-62708-215-0
... of the fracture surfaces and the condition of the individual wires revealed that 59% of the wires failed by shear, 39% failed in tension, and 2% had been cut. In addition, 87% of the wires showed some degree of crushing damage, ranging from mild to severe. The failure was attributed to improper installation...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.conag.c9001723
EISBN: 978-1-62708-221-1
... at the time of the mishap. Initially, a bend test was carried on a strip, B 1, Fig. 8 , cut to include the sheared edge of the plate at which the fracture originated. This edge was placed on the tension side during the test and the specimen cracked in a brittle manner after bending through only 3°. The crack...
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
... conclusions that an explosion was responsible. Previously, studies by one of the authors [1] had established that aluminum alloys of the type used in aircraft exhibited a “reversing shear” fracture surface ( Fig. 1 ) when exposed close to an explosion center. When we examined fracture surfaces of sections...
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
... to the OD surface, indicative of ductile torsional shear failure, were observed. Examination of a metallographic sample cut from the fracture at point B ( Fig. 2 ) showed the general microstructure to be tempered martensite from surface to core. A small secondary crack, 4.8 mm ( 3 16 in.) long...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.conag.c9001460
EISBN: 978-1-62708-221-1
... of the welds seen in Figure 2 showed a coarse texture, but evidence of fatigue cracking was present at the locations marked by the short arrows. The unwelded region on the fracture in Figure 1 showed that the bar section had been sheared to length, while that seen in Figure 2 was flame-cut. Macro...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001100
EISBN: 978-1-62708-214-3
... of as-fractured anchor bolt, showing narrow shear lip and dark thumbnail regions. Fig. 5 Fracture surface of longleg of saw cut anchor bolt, showing narrow shear lip and gray thumbnail regions. The thumbnail regions on the fracture surfaces of the as-fractured and sawcut bolts exhibited deposits...
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
... and increases hole size, a direct result of a change in bit diameter due to thermal expansion. The buildup of wear debris also rounds the cutting edge. Thus, in order to maintain cutting efficiency, the cutting force must be increased, which leads to increased shear stress on the drill bit shank. When...
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
.... , Tang X. , and Wang Y. , Microstructures of Surface White Layer and Internal White Adiabatic Shear Band , Wear , Vol 211 , 1997 , p 164 – 168 10.1016/S0043-1648(97)00099-9 34. Yang Y.-Y. , Fang H.-S. , Zheng Y.-K. , Yang Z.-G. , and Jiang Z.-L...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001491
EISBN: 978-1-62708-217-4
... to that shown in Figure 3 , but polished for precise viewing, failed to detect wrinkles. However, another kind of defect was found and appears as a line in Figure 3 . Actually this kind of defect is a secondary shear plane and lies generally parallel with the nozzle surface while cutting across...
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
... outward from the center are six cutting flutes that are used to shear and fracture the quartz particles. The 32 mm (1.25 in.) wear ring on the outside of the plate grinds the broken rock fragments to their final size. The procedure used to grind quartz in the disk attrition mill included: (1) setting...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001477
EISBN: 978-1-62708-229-7
... of the vessel, fortunately did not take place. The occurrence is unique in our experience and as such merits inclusion in this report. History Cracking Examination of Sample Cut from Drum Chemical Analysis of Deposit Metallurgical Examination Discussion Selected References Selected...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001583
EISBN: 978-1-62708-217-4
... in shear angle of the overload region. The two specimens from “C” had shear angles of approximately 40–45 degrees, whereas the specimens fabricated by “A” had shear angles around 75–80 degrees. The regions of fatigue fracture were noticeably smaller on the “A” specimens, accounting for only approximately...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001271
EISBN: 978-1-62708-215-0
...Abstract Abstract A carbon steel ball-peen hammer ejected a chip that struck the user's eye. Failure occurred when two hammers were struck together during an attempt to free a universal joint from an automotive drive shaft. Two samples were cut from the face of the hammer one through...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003530
EISBN: 978-1-62708-180-1
... in equilibrium. (b) Internal force, F i , on cut surface. (c) Components of Δ F on Δ A If the force Δ F is resolved into mutually perpendicular components such that Δ N is a component normal to the area, Δ A , and Δ V is parallel to Δ A , then the normal component of stress, σ, and shear component...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006767
EISBN: 978-1-62708-295-2
... a critical level, at least at one critical location. Or it may be that fracture did not occur. It should be remembered that some parts are designed to fracture under certain circumstances. Not doing so may constitute the failure. Shear pins, for example, are commonly used to protect valuable equipment...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001670
EISBN: 978-1-62708-217-4
... TOW flight case at Marquardt). On 11 March 1981, personnel from ARDEC visited MTL to discuss their findings, which included a significant amount of inner wall softening and a different microstructure at the mid versus outer wall of the case. They thought that the fabrication procedure (shear spinning...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.marine.c9001141
EISBN: 978-1-62708-227-3
... examination of sections cut from the cracked area identified lamellar tearing as the principle cause of the cracking. This was surprising in 6 mm thick hull plates. Corrosion fatigue and general corrosion also contributed to hull plate perforation. Although it is probable that more lamellar tears exist near...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001808
EISBN: 978-1-62708-180-1
..., can be better distinguished with macroscopic examination. A magnifying glass or binocular microscope can be used to study the unique vestigial marks left on tensile-fracture surfaces in the form of fibrous, radial, and shear-lip zones from which the relative amounts of ductility and toughness...