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grinding processes

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Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001814
EISBN: 978-1-62708-180-1
... helpful in categorizing problems, will not necessarily deduce the cause ofa particular failure. For example, a failure due to one of the above factors may have been caused by other problems earlier in the processing sequence. To illustrate, the majority of cracking problems attributed to abusive grinding...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c0047813
EISBN: 978-1-62708-229-7
...Abstract Abstract After being in service for ten years the ball-and-race coal pulverizer was investigated after noises were noted in it. Its lower grinding ring was attached to the 6150 normalized steel outer main shaft while the upper grinding ring was suspended by springs from a spider...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001084
EISBN: 978-1-62708-214-3
... that appear in Fig. 4(a) indicate that subsurface porosity was partially exposed by the grinding process. Fig. 4 SEM micrographs of sample SEM 2. (a) Overview of the surface defects in group 2. The vertical lines are grinding marks. (b) Higher-magnification view of the dendritic structure af the pore...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001002
EISBN: 978-1-62708-229-7
.... It was not possible to prepare metallographic sections through the cracks as the cracked areas were to be ground away and built up with weld metal if considered necessary. Thus, examination was made by replication at different stages during the grinding process conducted on the 68 mm thick shell. The maximum crack...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001056
EISBN: 978-1-62708-214-3
... of a weld near the flange. Sometimes the cracks ran along coarse marks produced during the grinding process ( Fig. 1 ). The frequency of this type of failure caused concern, because such failures could lead to catastrophic rupture. Surface Examination Metallography Chemical Analysis/Identification...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006818
EISBN: 978-1-62708-329-4
... Steels during Heat Treatment , Trans. ASM , Vol 62 , 1969 , p 130 – 139 Grinding • Harwick W.R. , Grinding Hazards , Metallurgia , Vol 49 , Jan 1954 , p 21 – 25 • Littmann W.E. and Wulff J. , The Influence of the Grinding Process on the Structure of Hardened...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003510
EISBN: 978-1-62708-180-1
...Abstract Abstract This article provides an overview of the effects of various material- and process-related parameters on residual stress, distortion control, cracking, and microstructure/property relationships as they relate to various types of failure. It discusses phase transformations...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003567
EISBN: 978-1-62708-180-1
... the two processes. This article focuses on the corrosion-wear synergism in aqueous slurry and grinding environments. Examples of corrosive wear problems encountered in industry are provided, and the effects of environmental factors on corrosive wear are discussed. Experimental measurement of corrosive...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001661
EISBN: 978-1-62708-229-7
... accepted by the dye penetrant test (PT) examinations. The slightly subsurface detection capabilities of the MT procedure provides a more effective examination of as-ground surface that PT, due to the possibility of metal being smeared over the discontinuity by the grinding process. Fig. 4 Procedure...
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
... 4.5 kg (10 lb) of the 75 μm product was deposited in the collection tray. The product was removed from the collection tray and the process repeated. Eventually, the machine failed due to grinding plate wear. Fig. 2 Macrographs of new (left) and worn (right) attrition mill wear plates...
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 three-body abrasion, sliding abrasion, gouging abrasion, high- and low-stress abrasion, impact abrasion, grinding abrasion, and so on. The more precise terminology for some of these classifications is further explained subsequently. In the excavation, earthmoving, mining, and mineral processing...
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
...-moving, mining, and mineral-processing industries, the following broad classifications have generally been used to describe the manifestations of abrasive wear that are seen on worn parts ( Ref 8 , 9 , 10 ): gouging abrasion; high-stress, or grinding, abrasion; low-stress, or scratching, abrasion...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006826
EISBN: 978-1-62708-329-4
...Abstract Abstract The first part of this article focuses on two major forms of machining-related failures, namely machining workpiece (in-process) failures and machined part (in-service) failures. Discussion centers on machining conditions and metallurgical factors contributing to (in-process...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001359
EISBN: 978-1-62708-215-0
... made of titanium alloy IMI 550, with a nominal composition of 4% Al, 4% Mo, were manufactured by the closed-die forging process. Targeting bosses flash buttons at the extremities of the blades serve as reference points for dimensional control and are later removed by grinding. Visual Scanning...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0009222
EISBN: 978-1-62708-180-1
...Abstract Abstract This article describes the six fundamental factors that decide a tool's performance. These are mechanical design, grade of tool steel, machining procedure, heat treatment, grinding, and handling. A deficiency in any one of the factors can lead to a tool and die failure...
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
...Abstract Abstract This article provides a discussion on the metallographic techniques used for failure analysis, and on fracture examination in materials, with illustrations. It discusses various metallographic specimen preparation techniques, namely, sectioning, mounting, grinding, polishing...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001667
EISBN: 978-1-62708-235-8
... into titanium surfaces is greatly increased during welding operations unless the environment is strictly controlled. Argon is generally used as a shielding gas in the tungsten-arc welding of titanium. The weld was produced in a four step process: (1) tack welded in eight areas to assure alignment...
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
... examination can be performed with the scanning electron microscope (SEM) over the same magnification range as the LM, but examination with the latter is more efficient. This article describes the major operations in the preparation of metallographic specimens, namely sectioning, mounting, grinding, polishing...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001291
EISBN: 978-1-62708-215-0
... investigation revealed that the cracking was caused by the combination of incorrect grinding procedure, the presence of hydrogen, and fatigue. The grinding damage generated tensile stresses in the steel, which caused intergranular cracking during the plating cycle. The intergranular cracks were initiation sites...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001059
EISBN: 978-1-62708-214-3
... or replacement, was recommended to prevent chloride buildup. Painting of the steel surface with an epoxy-phenolic or epoxy-coal tar was also suggested. Chemical processing industry Columns (process) Marine environments 316 UNS S31600 Stress-corrosion cracking Pitting corrosion Background Visual...