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abrasive wheel grinding

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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
... Fabricants de Produits Abrasifs system) is coarse enough to use on specimen surfaces sectioned by an abrasive cutoff wheel. Hacksawed, bandsawed, or other rough surfaces usually require abrasive grit sizes in the range of 120- to 180-grit (P120 to P180). Grinding must remove the damage created by sectioning...
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
... the edge of the surface on the platen during grinding and polishing. This procedure can be used effectively with larger-diameter wheels, if the specimen holder diameter is large, relative to the platen. The use of “hard,” woven or nonwoven, napless surfaces for polishing with diamond abrasives (rather than...
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
... the conclusion that the primary feed material was harder than the grinding plates, causing wear and eventual failure. Recommendations included reducing the clearance between the flutes and possible material changes. Grinding wheels, Materials substitution Milling Gray iron Abrasive wear...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006837
EISBN: 978-1-62708-329-4
... and manufacturing defects has become more important. This article presents case histories that are intended as an overview of the unique types of failures encountered in the freight railroad industry. The discussion covers failures of axle journals, bearings, wheels, couplers, rails and rail welds, and track...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006789
EISBN: 978-1-62708-295-2
..., bolted flanges, shrink fits, all in the presence of vibrations; reciprocating arms; electrical contacts; wire ropes Rolling-sliding wear Rolling bearings; cam and follower; gears; wheel-rail system Abrasive wear by hard particles Ore-processing machinery; blades and buckets of earth-moving...
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
... the surface of the workpiece. However, damage such as burns and cracks to the surface of hard alloys while grinding may be eliminated by increasing the workpiece feed rate and reducing the wheel speed. Metallurgical Factors Contributing to (In-Process) Workpiece Failures Long, stringy chips removed...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006820
EISBN: 978-1-62708-329-4
... axial forces and higher load capacity while maintaining the smooth and quiet power transmission of the spiral bevel gears. Hypoid gears are a variation on the spiral bevel gear where the pinion centerline is offset. They were originally developed to allow rear-wheel-drive cars to have a lower floor...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006830
EISBN: 978-1-62708-329-4
... Abstract The types of metal components used in lifting equipment include gears, shafts, drums and sheaves, brakes, brake wheels, couplings, bearings, wheels, electrical switchgear, chains, wire rope, and hooks. This article primarily deals with many of these metal components of lifting...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001811
EISBN: 978-1-62708-180-1
... worn small by the previous rope will subject the new rope to unnecessary abrasion in its attempt to grind the groove to its own diameter. To avoid this condition, the sheave-groove material should be selected to resist the wear corresponding to the rope pressure that will be present. Table 2...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001815
EISBN: 978-1-62708-180-1
... (or worm wheel) and a worm. Figure 4 shows a double-enveloping worm-gear set. Worm-gear sets are used where the ratio of the speed of the driving member to the speed of the driven member is large and where compact right-angle drive is required. If a worm gear such as that shown in Fig. 4 engages...
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
... investigation and corrective action. Fatigue failures in shafts, such as bending fatigue, torsional fatigue, contact fatigue, and axial fatigue, are reviewed. The article provides information on the brittle fracture, ductile fracture, distortion, and corrosion of shafts. Abrasive wear and adhesive wear of metal...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006810
EISBN: 978-1-62708-329-4
.... Design features that concentrate stress include ends of keyways, edges of press-fitted members, fillets at shoulders, and edges of oil holes. Stress concentrators produced during fabrication include grinding damage, machining marks or nicks, and quench cracks resulting from heat treating operations...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.9781627083294
EISBN: 978-1-62708-329-4
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003524
EISBN: 978-1-62708-180-1
... source can affect metal properties and microstructures during cutting. Therefore, dry abrasive cutoff wheels should never be used near critical surfaces that will be examined microscopically. Therefore, sectioning should be performed with jewelers' saws, precision diamond-edged, thin cutoff wheels...
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
... be easily recognized. In radial ball bearings that have been properly mounted, operated under good load conditions, and kept clean and properly lubricated, the paths of the balls on the highly polished raceways appear as dulled surfaces (similar to lapped surfaces) on which microscopic grinding scratches...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003570
EISBN: 978-1-62708-180-1
.... Steam turbine blades damaged by liquid-droplet impingement are normally not repaired; they are replaced. Conventional Weld Repairs Cavitation damage in hydroturbines and pumps is usually repaired by air-arc gouging to sound metal, cleaning the gouged area with a wire wheel or wire brush...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006834
EISBN: 978-1-62708-329-4
... this could constitute a wearing “sponge” for the sealing lip itself by embedding potential foreign abrasive particles. In such situations and in geometries in which it is not possible to clean easily and/or safely those grease excesses, regular greasing with small quantities is then preferred, because...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003520
EISBN: 978-1-62708-180-1
..., polishing, and even handling to avoid creating artifacts that could lead to false conclusions. The investigator should preserve the fracture initiation area as it was at the time of failure. For example, any band saw cutting, abrasive-wheel cutting, or burning should be done well away from the fracture...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003522
EISBN: 978-1-62708-180-1
... Wear and erosion involve loss of material. This may be, for example, because of the absence of adequate lubrication, the rubbing together of components that are supposed to have clearance between them, or from the handling of abrasive materials that impinge on the component that continually removes...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006757
EISBN: 978-1-62708-295-2
..., or from the handling of abrasive materials that impinge on the component that continually removes surface material. In many cases, the presence of debris buildup may provide critical understanding of the specific wear/erosion mechanism involved in the failure. A common wear problem that is encountered...