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rough polishing

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Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003190
EISBN: 978-1-62708-199-3
... ). Table 3 Classification of machined surface finishes Class Roughness, R a Suitable for tolerance of plus or minus Typical method of producing finish Approximate relative cost to produce μm μin. mm in. Super finish 0.10 4 0.0125 0.0005 Ground, microhoned, lapped 40 Polish...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003244
EISBN: 978-1-62708-199-3
..., such as disturbed metal, pitting, dragging out of inclusion, “comet tailing,” and staining. Polishing usually is conducted in several stages. Rough polishing generally is traditionally done with 6 or 3 μm diamond abrasive charged onto napless or low-nap cloths. Hard materials, such as through-hardened...
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0001837
EISBN: 978-1-62708-181-8
... quantitative geometrical methods for characterizing nonplanar fracture surfaces. Prominent techniques for studying fracture surfaces are based on the projected images, stereoscopic viewing, and sectioning. The article provides information on various roughness and materials-related parameters for profiles and...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001263
EISBN: 978-1-62708-170-2
..., cobalt, iron, and copper, providing information on mandrel design and selection, electroforming solutions and operating variables. It discusses the significant aspects of electroforming that demand special considerations, such as metal distribution, internal deposit stress, roughness, and treeing. The...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006796
EISBN: 978-1-62708-295-2
... of LDI erosion under the influence of a liquid film and surface roughness and on the prediction of LDI erosion. The fundamentals of LDI and processes involved in initiation of erosion are also discussed. empirical erosion model liquid droplet impingement erosion liquid film prediction model...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003247
EISBN: 978-1-62708-199-3
... removed, can obscure the true structure of the specimen being examined. In the traditional method, preparation entails grinding with 400 grit SiC abrasive, rough polishing with 9 μm diamond paste on a napless cloth and 0.3 μm Al 2 O 3 slurry on a medium-nap cloth, and final polishing with colloidal...
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
... out of inclusions, “comet tailing” ( Fig. 12 ), staining ( Fig. 13 ), relief (height differences between different constituents, or between holes and constituents) ( Fig. 14 ), or embedding ( Fig. 15 ). Polishing usually is conducted in several stages. Rough polishing is conducted with 9, 6, and/or 3...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003245
EISBN: 978-1-62708-199-3
... retaining graphite but suffer from the limitation that they are less efficient in removing abrasion scratches. With two-stage polishing, a napless cloth is used for the rough polishing stage, while a low-nap or napless cloth is used for the final diamond polishing stage. After polishing, the specimen...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001232
EISBN: 978-1-62708-170-2
... selection work material ABRASIVE FINISHING includes many commercial processes, which can be generally classified as rough grinding, precision grinding , or high-precision grinding. The distinctions among these categories are based on the desired material removal rates and the acceptable tolerance or...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001305
EISBN: 978-1-62708-170-2
... operations for the grinding, polishing, and buffing of stainless steels. Table 8 Sequence of grinding, polishing, and buffing operations for stainless steels Operation Stage Wheels Grit size Abrasive Method Purpose Grinding Rough Solid wheels; rubber or bakelite bonded, soft body 20...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001310
EISBN: 978-1-62708-170-2
... repetitive reliability. Mechanical cleaning of magnesium alloy products is accomplished by grinding and rough polishing, dry or wet abrasive blast cleaning, wire brushing, and wet barrel or bowl abrading (vibratory finishing). Chemical methods for cleaning...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003221
EISBN: 978-1-62708-199-3
... dimensions less than 50 mm (2 in.). Copper alloy parts are polished after scale removal and dressing or rough cutting, but before final finishing operations, which include buffing, burnishing, and honing. Rough castings normally require two polishing operations before buffing. Forgings and...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001309
EISBN: 978-1-62708-170-2
... Rough polishing Cloth (a) 2100 23 80-grit silicon carbide 29 None or light application of grease stick Final polishing Cloth (a) 2100 30 220-grit Al 2 O 3 49 Grease stick Spot polishing Cloth (a) 2100 46 220-grit Al 2 O 3 77 Grease stick General buffing Spiral-sewn...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001314
EISBN: 978-1-62708-170-2
... bond 24 or 36 None 25–30 5000–6000 Roughing Cotton fabric, sewn sections 60 or 80 None 30–40 6000–7500 Dry fining Cotton fabric, sewn sections 100 or 120 None 30–40 6000–7500 Greasing 64–68 unbleached sheeting, spirally sewn sections 150 or 180 Polishing tallow or No. 180...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001315
EISBN: 978-1-62708-170-2
... sufficiently smooth surfaces that require only buffing prior to the chemical treatments used in preparation for electroplating or painting. However, others may require spot or overall polishing to remove surface defects or roughness. Spot or surface polishing is done with set-up wheels or abrasive belts with...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003055
EISBN: 978-1-62708-200-6
... process. Pullout of grains can occur, particularly in poorly bonded workpiece materials with coarse grain structure, especially when fine-abrasive wheels are used to obtain ultrasmooth surfaces. Fig. 8 Plot of surface finish (roughness average, R a ) versus downfeed (depth of cut) for three...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001311
EISBN: 978-1-62708-170-2
... belts have been effective. It is common to polish in two or more steps, using a coarser grit initially, such as 60 or 80, to remove gross surface roughness, followed by polishing with 120- or 150-grit to provide a smooth finish. Titanium tends to wear the sharp edges of the abrasive particles and load...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001308
EISBN: 978-1-62708-170-2
... electrolytic brightening are essentially selective-dissolution processes, in which the high points of a rough surface are attacked more rapidly than the depressions. An important feature of these processes is their ability to remove a surface skin of metal that is contaminated with oxides and with traces of...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003065
EISBN: 978-1-62708-200-6
... glass products, including forming, grinding and polishing, and explores the advantages, disadvantages and steps involved in sol-gel process. It also discusses the types, processes and properties of annealed, laminated, and tempered glass, and presents the steps involved in glass decoration. The article...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001312
EISBN: 978-1-62708-170-2
... cloth belts have been effective. It is common to polish in two or more steps, using a coarser grit initially, such as 60 or 80, to remove gross surface roughness, followed by polishing with 120 or 150 grit to provide a smooth finish. Zirconium and titanium tend to wear the sharp edges of the abrasive...