Innovations in Abrasive Products for Precision Grinding

Webster, John; Tricard, Marc

doi:10.1016/s0007-8506(07)60031-6

Cited by 181 publications

(85 citation statements)

References 47 publications

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“…The second of abovementioned modifications (impregnation of abrasive tools) consist of introduction of anti-adhesive and lubrication agents which actively influence the conditions in the grinding zone, as what was discussed by Webster and Tricard [14] as well as Chirkov [15]. Impregnation of the grinding wheels is one of the easiest ways to modify standard tools and effectively influence the chemical conditions in the zone of contact between active vertexes of abrasive grains and the workpiece surface in order to counteract the phenomenon of clogging.…”

Section: Introductionmentioning

confidence: 99%

SEM-EDS-based analysis of the amorphous carbon-treated grinding wheel active surface after reciprocal internal cylindrical grinding of Titanium Grade 2® alloy

Nadolny

Rokosz

Kapłonek

et al. 2016

Int J Adv Manuf Technol

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In this article, we described a detailed analysis of the composition of elements remaining on the amorphous carbon-treated grinding wheel active surface (GWAS) after reciprocal internal cylindrical grinding of Titanium Grade 2 ® alloy. For this purpose, the scanning electron microscope (SEM) combined with energydispersive X-ray spectroscope (EDS) techniques were used. The SEM imaging and observation of selected fragments of active surface of 1-35 × 10 × 10-SG/ F46G10VTO grinding wheel was mainly carried out by use of two advanced microscopy systems: JSM-5500LV (JEOL Ltd., Tokyo, Japan) and Auriga ® (Carl Zeiss Microscopy GmbH, Jena, Germany). During EDS measurements, the Octane plus (EDAX, Inc., Mahwah, NJ, USA)-a high-accuracy silicon drift detector (SSI) was used. Conducted SEM-EDS analysis shows that applied impregnation method ensure the presence of impregnate in a grinding wheel body, also in subsequent work cycles of tool. Observed Ti cloggings on the GWAS appear solely on dulled vertices of active abrasive grains, which demonstrates the limited impact of the impregnate in the zone of direct contact between abrasive grains and machined workpiece surface. However, lack of extensive cloggings of the intergranular spaces indicating an effective removal of long ductile chips of Ti from grinding zone aided by the introduction of an amorphous carbon.

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Section: Introductionmentioning

confidence: 99%

SEM-EDS-based analysis of the amorphous carbon-treated grinding wheel active surface after reciprocal internal cylindrical grinding of Titanium Grade 2® alloy

Nadolny

Rokosz

Kapłonek

et al. 2016

Int J Adv Manuf Technol

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“…The most common traverse processes include external cylindrical continuous path-controlled grinding (CPCG), where grinding wheels from superhard abrasive grains are used [1][2][3][4][5][6]. Methods of traverse grinding with grinding wheels made from Al 2 O 3 grains are also being developed [7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Wear phenomena of grinding wheels with sol–gel alumina abrasive grains and glass–ceramic vitrified bond during internal cylindrical traverse grinding of 100Cr6 steel

Nadolny

2014

Int J Adv Manuf Technol

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This article presents the results from a traverse internal cylindrical grinding process conducted using grinding wheels with sol-gel alumina abrasive grains and varying volumes of glass-ceramic vitrified bond. The aim was to determine how changing the bond volume within the range of V b =11.5-14.5 % influenced the wear phenomenon of the microcrystalline sintered corundum abrasive grains and the ceramic bond bridges with glass-crystalline structure. The paper presents grinding wheels with conic chamfer and the most important wear phenomena of the grinding wheel components occurring in the area of contact between the tool and the workpiece material. The work includes the methodology of the experimental tests on the traverse internal cylindrical grinding of bearing rings made from steel 100Cr6 (62±2 HRC). A wide range of test results were analyzed, including machined surface roughness parameters (Ra, Rz, Sm, Δa), grinding power, grinding wheel volumetric wear V s , material removal V w , G-ratio, root-mean-square roundness deviation from mean circle (Δ, rms), grinding wheel edge wear, grinding wheel microtopography parameters (Sa, St, Sdr, Sds), and SEM images of the wear marks on the grinding wheel active surface. The dominant wear phenomena of the grinding wheels with conic chamfer and the influence of the bond volume share on its intensity were experimentally determined. The results show that the decrease in bond volume from V b =14.5 to 11.5 % increases the grinding wheel life by twofold. This was due to a decrease in abrasive wear and plastic flow phenomena and to a greater fracture wear (mostly fatigue and thermal-fatigue). These events led to a periodic shedding of the oxide layer and the plastically deformed grain layer and also revealed the crystals' sharp edges, located below the plastically deformed surface layer.

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“…18 the micro milling tools are made from tungsten carbide with φ0.2 mm to φ1.5 mm in diameter. Much work has also been carried out in developing CVD coatings for better wear resistance and improved thermal properties, etc [24].…”

Section: Toolingmentioning

confidence: 99%

Design of ultraprecision machine tools with applications to manufacture of miniature and micro components

Luo

Cheng

Webb

et al. 2005

Journal of Materials Processing Technology

138

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Currently the underlying necessities for predictability, producibility and productivity remain big issues in ultraprecision machining of miniature/microproducts. The demand on rapid and economic fabrication of miniature/microproducts with complex shapes has also made new challenges for ultraprecision machine tool design. In this paper the design for an ultraprecision machine tool is introduced by describing its key machine elements and machine tool design procedures. The focus is on the review and assessment of the state-of-the-art ultraprecision machining tools. It also illustrates the application promise of miniature/microproducts. The trends on machine tool development, tooling, workpiece material and machining processes are pointed out.

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Innovations in Abrasive Products for Precision Grinding

Cited by 181 publications

References 47 publications

SEM-EDS-based analysis of the amorphous carbon-treated grinding wheel active surface after reciprocal internal cylindrical grinding of Titanium Grade 2® alloy

SEM-EDS-based analysis of the amorphous carbon-treated grinding wheel active surface after reciprocal internal cylindrical grinding of Titanium Grade 2® alloy

Wear phenomena of grinding wheels with sol–gel alumina abrasive grains and glass–ceramic vitrified bond during internal cylindrical traverse grinding of 100Cr6 steel

Design of ultraprecision machine tools with applications to manufacture of miniature and micro components

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