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spinning

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Image
Published: 01 December 2019
Fig. 1 Spinning system More
Image
Published: 01 December 2019
Fig. 2 Misaligned spinning system More
Image
Published: 01 December 2019
Fig. 8 Natural frequencies of studied spinning system More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c0048787
EISBN: 978-1-62708-235-8
... Abstract Leakage from the top of a fire-extinguisher case, made of 1541 steel tubing and closed by spinning was observed during testing. Three small folds were observed on the surface by visual examination and one was sectioned. A very fine transverse fissure through the section was revealed...
Image
Published: 01 December 1992
Fig. 14 Loading cycles used in spin-pit testing. (a) Constant-amplitude idle-max-idle duty cycle. (b) Variable-amplitude duty cycle. More
Image
Published: 01 December 1992
Fig. 15 Spin-pit crack growth history of bolt hole crack in disk 1 using idle-max-idle loading. More
Image
Published: 01 December 1992
Fig. 18 Spin-pitcrack growth history of bolt hole crack in disk 3 using variable-amplitude loading. More
Image
Published: 01 December 1992
Fig. 19 Typical striation patterns of crack propagated in spin pit in disk 3 using variable-amplitude loading. (a) 3.7mm (0.146in.) from crack initiation site. (b) 3.8 mm (1.50 in.) from crack initiation site. More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.design.c9001232
EISBN: 978-1-62708-233-4
... Abstract A bolt breaks along a change in cross section well below its rated capacity. An anchoring screw spins freely in place, having snapped at its first supporting thread. A motor unexpectedly disengages its load, its driveshaft having fractured near a keyway. Such failures – involving axles...
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
... 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 attached...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c0047632
EISBN: 978-1-62708-235-8
... boss on one side. After annealing, hot spinning, annealing a second time, and tack welding a port fitting, the assembly was torch preheated to 120 to 150 deg C (250 to 300 deg F). The port fitting was then welded in place. Final full heat treatment to the T62 temper was followed by machining, testing...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001081
EISBN: 978-1-62708-214-3
... of spin-pit cracks 2167 1300 Note: The SII value predicted by the engine manufacturer was 555 h ( Ref 1 ). Fig. 15 Spin-pit crack growth history of bolt hole crack in disk 1 using idle-max-idle loading. Fig. 16 Striations in typical pin-pit fracture area of bolt hole crack, 4.3...
Image
Published: 01 June 2019
Fig. 1 Fire-extinguisher case that failed because of ferrite streaks resulting from overheating during spinning. (a) Top of the case. Dimensions given in inches. (b) Micrograph showing ferrite streaks. 150× More
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001317
EISBN: 978-1-62708-215-0
... fabricated from 6.0 mm (0.24 in.) thick AISI type 316 stainless steel plate by cold spinning. Stress relieving of the dished ends was not specified. The dished ends were joined to the cylindrical shell portion by tungsten inert gas welding for the root pass and manual metal arc welding for the subsequent...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001851
EISBN: 978-1-62708-241-9
... Fig. 1 Spinning system Fig. 2 Misaligned spinning system Fig. 3 Cardan joint Fig. 4 Rotating shaft Fig. 6 Receptor shaft Fig. 5 Rotating flexible disi with rigid body motion Fig. 7 Bearing stiffness and damping Fig. 8...
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
... 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 and swaging) performed at Marquardt may have caused the softening, which in turn may have contributed to the two TOW failures. Metallographic work...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c9001395
EISBN: 978-1-62708-220-4
... Measurements The hardness at various points across the weld, was measured and the results are depicted in Fig. 7 . It was ascertained that the head had been formed by cold spinning and the heavy work hardening thereby introduced had not been relieved by subsequent heat treatment. The shell hardness...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001601
EISBN: 978-1-62708-235-8
... instability in cone spinning and concluded that wrinkling on the prespun flange of the cone is caused by relief of the residual compressive stress that arises in the traction-free flange. The cone spinning instability is similar to the wrinkling phenomenon in deep drawing operations. Gur and Tirosh 5...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c0046044
EISBN: 978-1-62708-235-8
... machined forgings. The five cylinders were made by cold shear spinning of forged, machined, spheroidized preforms. The cylinders were annealed after spinning and before welding. All the components were joined by girth welds using the automatic gas tungsten are process. There were no longitudinal seams...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c0089774
EISBN: 978-1-62708-235-8
... rpm and the platforms at a speed of 20 rpm. The accident occurred when one of the secondary shafts on the amusement ride broke, allowing the platform it supported to spin off the spider. The point of fracture was adjacent to a weld that attached the shaft to a 16 mm ( 5 8 in.) thick plate...