Conditioning and monitoring of grinding wheels

Wegener, Konrad; Hoffmeister, Hans‐Werner; Karpuschewski, Bernhard; Kuster, Friedrich; Hahmann, W.-C.; Rabiey, Mohammad

doi:10.1016/j.cirp.2011.05.003

Cited by 280 publications

(119 citation statements)

References 130 publications

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“…Z tych powodów konieczne jest poznanie wpływu warunków obróbki na przebieg i parametry wynikowe szlifowania. Podstawą monitorowania procesu jest pomiar różnych wielkości towarzyszących procesowi szlifowania, z których możliwe jest wyznaczenie pojedynczej cechy bądź zbioru cech skorelowanych ze stanem narzędzia ściernego lub parametrami warstwy wierzchniej szlifowanego przedmiotu [2,4,5,13]. W systemach monitorowania procesów szlifowania pomiar mocy bądź siły szlifowania może być wykorzystany do estymacji zdolności skrawnej ściernicy [4].…”

Section: Wprowadzenieunclassified

The Influence of machining conditions Nickel 201 on the effects of the grinding process

2015

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W artykule przedstawiono badania szlifowania zewnętrz-nych powierzchni cylindrycznych stopu Nickel 201 dla różnych parametrów kinematycznych szlifowania i róż-nych ściernic. Przeprowadzono analizę wpływu warunków obróbki na zmiany składowych siły szlifowania oraz emisji akustycznej. W końcowej części pracy przedstawiono wpływ zastosowanych ściernic i warunków obróbki na wybrane parametry wynikowe szlifowanych przedmiotów. SŁOWA KLUCZOWE: Nickel cylinszlifowanie 201, dryczneIn the paper grinding process has been studied in the ma-chining of Nickel 201 alloy for different grinding kinematic parameters and grinding wheels in OD cylindrical grinding. An analysis was carried out to investigate the influence of grinding conditions on the course of grinding force compo-nents and acoustic emission signal. In the end the influence of grinding wheels and conditions on selected grinding results are presented. KEYWORDS: Nickel 201, cylindrical grinding WprowadzeniePotrzeba produkcji szczególnie w przemyśle motoryzacyjnym i lotniczym coraz bardziej odpornych na niekorzystne warunki pracy elementów oraz zespołów urządzeń wymusza stosowanie specjalnych stopów metali. Do grupy tych materiałów należą niewątpliwie stopy niklu, charakteryzujące się ponadprzeciętnymi właściwościami eksploatacyjnymi w szczególnie wymagających aplikacjach.Nadstopy na osnowie niklu z uwagi na wyjątkowe właści-wości mechaniczne przy jednoczesnej odporności na szeroki zakres mediów korozyjnych znajdują zastosowanie w różno-rakich gałęziach przemysłu od przemysłu medycznego po lotniczy. Chęć zastosowania materiałów o tak specyficznych właściwościach stanowi wyzwanie dla technologów by przy aktualnym zaawansowaniu maszyn i narzędzi realizować proces produkcyjny na wymaganym poziomie produktywności urządzeń.Celem prowadzonych badań, których efekty przedstawiono w niniejszym artykule, było określenie korzystnych parametrów obróbkowych dla osiągnięcia najniższej chropowatości powierzchni. Do badań szlifowania wytypowano stop należący do grupy A Nickel 201. Komercyjnie "czysty" (min. 99,0%), obrobiony plastycznie nikiel z dobrymi właściwościami mechanicznymi i odpornością na szeroki zakres mediów korozyjnych, charakteryzuje się ponad to korzystnymi właści-wościami: cieplnymi, elektrycznymi i magnetostrykcyjnymi.

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Section: Wprowadzenieunclassified

The Influence of machining conditions Nickel 201 on the effects of the grinding process

2015

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“…A proper analysis was carried out on the basis of selected studies offered by the software: a surface map in indexed colors, where the height of the surface elements was encoded with the color, a photo simulation, a contour diagram (color background mode), a profile and a surface microtopography, an Abbott-Firestone curve and a graphical study of Sk parameters, as well as calculated values of selected parameters from the amplitude, spatial, hybrid and functional groups, as described in Table 3. 1) Parameters are included in the ISO 25178-2:2012 standard [36] and EUR 15178 EN report [37], 2) Parameters defined in the report of the European program SURFSTAND [38] An exemplary analysis of selected results obtained for the active surface of coated abrasive tools by the InfiniteFocus ® IF G4 focus variation microscope during experimental investigations is presented in Fig.3 -Fig.5. A collection of results obtained for the active surface of elastic microfinishing film, type IMMF produced by 3M, represented by the samples F1 -IMFF 1200 (grain size 9 μm) and F5 -IMFF 180 (grain size 80 μm), is presented in Fig.3.…”

Section: Processing and Analysis Of The Measurement Datamentioning

confidence: 99%

“…The detection of dulled abrasive grain vertexes, as well as the location and analysis of clogging areas of the workpiece material must be properly assessed. Issues regarding the broadly defined assessment of abrasive tools have been extremely important for many years, as has been demonstrated by Wang and Gao, as well as Wegener et al in numerous works from this field [1,2]. In many such works, the various measuring methods that may be used in this type of assessment are listed.…”

Section: Introductionmentioning

confidence: 99%

The Use of Focus-Variation Microscopy for the Assessment of Active Surfaces of a New Generation of Coated Abrasive Tools

Kapłonek

Nadolny

Królczyk

2016

Measurement Science Review

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In this paper, the selected results of measurements and analysis of the active surfaces of a new generation of coated abrasive tools obtained by the use of focus-variation microscopy (FVM) are presented and discussed. The origin of this technique, as well as its general metrological characteristics is briefly described. Additionally, information regarding the focus variation microscope used in the experiments -InfiniteFocus ® IF G4 produced by Alicona Imaging, is also given. The measurements were carried out on microfinishing films (IMFF), abrasive portable belts with Cubitron™ II grains, and single-layer abrasive discs with Trizact™ grains. The obtained results were processed and analyzed employing TalyMap 4.0 software in the form of maps and profiles, surface microtopographies, AbbottFirestone curves, and calculated values of selected areal parameters. This allowed us to describe the active surfaces of the coated abrasive tools, as well as to assess the possibility of applying the FVM technique in such kinds of measurements.

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“…When it comes to conditioning, however, the above mentioned advantages are turned into disadvantages. Metal bounded diamond wheels are known as difficult-to-dress tools [5]. To overcome this problem, different dressing methods have been proposed, e.g.…”

Section: Introductionmentioning

confidence: 99%

“…To overcome this problem, different dressing methods have been proposed, e.g. die-sinking and wire electrical discharge machining, which can be used for dressing metal bonded diamond wheels, since the electrically conductive bond is removed and the diamonds, which are electric insulators, cannot be eroded [4,5]. This selective removal process is of great importance for grinding, since the dressing process has to provide the grinding wheel with sufficient grain protrusion and chip space, which is important for collecting ground chips and for improving the cutting fluid transportation through the grinding zone.…”

Section: Introductionmentioning

confidence: 99%

Electrical discharge dressing and its influence on metal bonded diamond wheels

et al. 2012

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Although EDM is a thermal removal process, when it is applied for dressing diamond grinding wheels, usually little or no thermal damage is caused to the diamonds. In this work, a better explanation for this fact is provided. A thermo-electrical model is used to calculate the temperature distribution inside diamonds showing that even for high discharge energies small amount of graphitization occur. Here, the exceptional properties of diamond contribute to minimize thermal damages. Still, a concentration of discharges can occur around the diamonds and thus lead to thermal damages. However, this phenomenon is more evident for large diamonds.Wire EDM, Dressing, Diamond.

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Conditioning and monitoring of grinding wheels

Cited by 280 publications

References 130 publications

The Influence of machining conditions Nickel 201 on the effects of the grinding process

The Influence of machining conditions Nickel 201 on the effects of the grinding process

The Use of Focus-Variation Microscopy for the Assessment of Active Surfaces of a New Generation of Coated Abrasive Tools

Electrical discharge dressing and its influence on metal bonded diamond wheels

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