1-20 of 95 Search Results for

ring rolling

Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c0059924
EISBN: 978-1-62708-235-8
...Abstract Abstract The large steel ring produced for a nuclear application from a billet of 8822 steel was inspected. The large billet was first forged into a doughnut preform in a large press, and then formed into the ring by ring rolling. A straight-beam ultrasonic inspection was instituted...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.steel.c9001149
EISBN: 978-1-62708-232-7
... lengths of rolled and welded COR-TEN steel plate which were butt welded together on site. As seen on Fig. 2 , the duct was supported by thirty-seven saddles numbered consecutively from the baghouse (cool) end of the duct. Welded to each saddle was a stiffening ring which in turn was welded...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001831
EISBN: 978-1-62708-241-9
...Abstract Abstract An air blower in an electric power plant failed unexpectedly when a roller bearing in the drive motor fractured along its outer ring. Both rings, as well as the 18 rolling elements, were made from GCr15 bearing steel. The bearing also included a machined brass (MA/C3) cage...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.mech.c0047968
EISBN: 978-1-62708-225-9
... of the microdrum, which rotated at 3600 rpm, a spring washer that applied a 22.6-kg (50-lb) axial load on the smaller bearing was installed in contact with the inner ring. Investigation Conclusions Corrective Measures Selected Reference Selected Reference • Ahmed R. , Rolling Contact...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001300
EISBN: 978-1-62708-215-0
...Abstract Abstract A bull gear from a coal pulverizer at a utility failed by rolling-contact fatigue as the result of continual overloading of the gear and a nonuniform, case-hardened surface of the gear teeth. The gear consisted of an AISI 4140 Cr-Mo steel gear ring that was shrunk fit...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.matlhand.c0089338
EISBN: 978-1-62708-224-2
...Abstract Abstract A steel lifting eye, manufactured from grade 1144 steel, failed during service. The eye ring fractured in two places, adjacent to the threaded shank and diametrically opposite to this region. Woody overload features, typical for resulfurized steels were revealed by SEM...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.steel.c9001513
EISBN: 978-1-62708-232-7
...Abstract Abstract While in the stationary mode, capillary action at the contact line between roller and race in a steel rolling mill taper bearing caused a concentration of lubricant and moisture to occur. This lead to lines of corrosion pits at roller intervals. During subsequent operation...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001258
EISBN: 978-1-62708-235-8
... on both sides of the fracture of 300 mm each. Missing in the lamellar surface structure, with the exception of the remnants of a coarse network, were the pre-eutectically precipitated carbides to be expected in this steel. Surrounding the ferritic region in the surface structure, a ring of lamellar...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006792
EISBN: 978-1-62708-295-2
.... , Tsushima N. , and Muro H. , Observations of the Peeling Mode of Failure and Surface-Originated Flaking from a Ring-to-Ring Rolling Contact Fatigue Test , Rolling Contact Fatigue Testing of Bearing Steels , Hoo J.J.C. , Ed., American Society for Testing and Materials , West Conshohocken...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001810
EISBN: 978-1-62708-180-1
... for a radial rolling-element bearing is the calculated constant radial load that 90% of a group of apparently identical bearings with stationary outer rings can theoretically endure for one million revolutions of the inner ring. The basic load rating is a reference value only because, as a load, it usually...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003564
EISBN: 978-1-62708-180-1
... of Silicon Nitride Rolling Elements with Ring Crack Defects , Ceram. Int. , Vol 24 , 1998 , p 379 – 386 42. Carter T.L. and Zaretsky E.V. , “Rolling Contact Fatigue Life of a Crystallized Glass Ceramic,” NASA TN D-259, National Aeronautics and Space Administration , 1960 43...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001796
EISBN: 978-1-62708-241-9
... often used in bearings to minimize the effects of orbital slippage and rolling-contact fatigue. The damaged areas were examined under a scanning electron microscope, which revealed a high density of microcraters, characteristic of local melting and material removal associated with bearing currents...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001712
EISBN: 978-1-62708-234-1
... furnace rolls were received for analysis in Q4 1996. The rings had been taken from the rolls according to the sketch shown in Figure 1 . The rolls were reported to be MO-RE 1, a nickel-chromium-iron alloy with a long history and good record in table roll applications. The customer indicated...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001795
EISBN: 978-1-62708-241-9
... in Fig. 1 . Fig. 1 The outer ring of the ball bearing. The damaged location is indicated, and its close-up view is given The rolling elements of the ball bearing are shown in Fig. 2a . Flaking type of damage was observed on the surface of the balls of the bearing. The damage on the surface...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.mech.c9001191
EISBN: 978-1-62708-225-9
...) spread in steps which finally led to the breaking off of parts from the middle flange and complete failure of the rings. Bearing steel Roller bearings Scouring Stress cracking 100CrMn 6 Fatigue fracture Rolling-contact wear Inner rings of spherical roller bearings out of the full...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.mech.c0047975
EISBN: 978-1-62708-225-9
... (arrow B). Both areas had a convex texture in relation to the axial origin. Fig. 1 Inner-ring raceway of an aircraft-transmission ball bearing that failed by rolling-contact fatigue because of subsurface nonmetallic inclusions. (a) Macrograph of inner-ring raceway showing fine-texture flaking...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001842
EISBN: 978-1-62708-241-9
... concentration carbon steel heat affected zone metallurgical notch ring test cyclic bending stress fatigue limit ASTM A106 (seamless carbon steel pipe) UNS K02501 Introduction Description of the Fractured Roll Roll Balance Condition and Critical Speed Analysis of the As-Manufactured Condition...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.mech.c0047998
EISBN: 978-1-62708-225-9
... • Ahmed R. , Rolling Contact Fatigue , Failure Analysis and Prevention , Vol 11 , ASM Handbook , ASM International , 2002 , p 941 – 956 10.31399/asm.hb.v11.a0003563 Examination of the failed bearings revealed that the rings were blackened, deformed, and smeared. The balls were...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003563
EISBN: 978-1-62708-180-1
... retaining rings; accelerometer coupled with a shutdown device; drip-feed lubrication; stress per ball typically 6 GPa (870 ksi) Ref 26 (e) Cylinder-to-ball testing apparatus Symmetrical arrangement of two 19 mm ( 3 4 in.) balls rolling on a 12.5 mm ( 1 2 in.) outside diameter...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001691
EISBN: 978-1-62708-234-1
... in Figure 2 . Fig. 1 The APS storage ring vacuum chamber. Three small round cooling holes are seen here. Fig. 2 Transition assemblies made from 3003 aluminum roll-bonded to stainless steel (top). SEM and x-ray EDS was used to survey the corrosion regions ( Figs. 3 and 4 ). Fig...