The Effects of Hard Lubricant Coatings on the Performance of Electro-Plated Superabrasive Grinding Wheels

Salmon, Stuart C.

doi:10.4028/www.scientific.net/kem.238-239.283

Cited by 11 publications

(3 citation statements)

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“…Other forms of carbon (graphite) is often used as a solid lubricant in grinding technology, which was widely presented in numerous works [25][26][27][28][29][30][31], because of its properties, as shown in the work [32]. In crystals of graphite, carbon atoms in one plane are linked by strong atomic bonds while in a plane perpendicular to it, the bonds are much weaker, Van der Waals type.…”

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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“…These properties make graphite popular for utilization as a dry lubricant. Graphite is commonly used as a lubricating substance in dry grinding [7][8][9][10].…”

Section: Selecting the Solid Lubricantmentioning

confidence: 99%

Optimizing the Grinding Process through Reduction of the Loading of Grinding Tool by Infiltration

Azarhoushang

Rinderknecht

Vesali

et al. 2016

AMR

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The loading of the grinding wheel and adhesion of the workpiece material to the cutting edges of the grinding tool are among the main reasons which limit the process efficiency when grinding ductile materials. The micro topography of the grinding tool changes drastically as a result of loading. Higher grinding forces and temperatures, poorer surface quality and process accuracy are the consequences of the adhesion of the workpiece material to the grinding tool surface. A novel and promising technique to reduce the possibility of loading and adhesion in the grinding process is the infiltrating of the grinding tool. This study describes the results of infiltration of vitrified bonded conventional grinding wheels with graphite in the surface grinding process. The effects of infiltration have been studied for the first time on various grinding wheels with different grain materials, grit sizes, porosity and hardness. Two different types of steel which are very popular in the automobile industry, 100Cr6 and 16MnCr5, were chosen as the workpiece material by the surface grinding experiments. The selected cutting parameters cover a wide range of the practical surface grinding processes which are utilized generally in the industry. It has been experimentally shown that the type of infiltration plays an important role in reducing the loading of the wheel. Better surface quality and longer dressing intervals are the main results of the infiltration of the grinding tools.

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“…The presence of graphite particles reduced the surface roughness and wheel loading and resulted in higher quality products and a longer interval between dressings. Salmon 8 using Ti-Al-N coating on CBN grits and molybdenum disulfide (MoS 2 ) as a solid lubricant, proved that the presence of the coating also reduces the wheel loading.…”

Section: Introductionmentioning

confidence: 99%

Evaluation and investigation of grinding process of biomedical polymer (PEEK)

Khoran

Azarhoushang

Amirabadi

2021

Proceedings of the Institution of Mechanical Engineers, Part E:

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Polyether ether ketone (PEEK) has been widely used in the medical engineering due to its high strength to weight ratio, creep and wear-resistance, and anti-allergically properties. Grinding is generally used to produce PEEK parts with high accuracy and surface quality requirements. In this research, the tool loading and the effect of cryogenic cooling in the grinding of PEEK are studied for the first time. It is shown that the generated heat in the grinding process, which is mainly influenced by the tool micro-topography, process parameter, and coolant lubricant has an important role in the surface integrity of PEEK. Additionally, the influence of specific material removal rate and the dressing speed ratio on the specific grinding energy of PEEK was studied. The input parameters of the grinding process that are investigated in this study include cutting speed (vs), depth of cut (ae), and feed rate (vft). To investigate the grinding wheel topography, the effects of dressing overlap ratio (Ud) and the dressing speed ratio (qd) were also investigated. Grinding force, surface roughness, and loading of the grinding wheel were considered as output parameters. The experiments were designed based on response surface methodology and the optimum cutting condition was obtained based on this method. The depth of cut and the dressing overlap ratio had respectively the maximum and minimum impact on the surface roughness and cutting forces. Additionally, the tool loading was mainly influenced by the cutting speed.

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The Effects of Hard Lubricant Coatings on the Performance of Electro-Plated Superabrasive Grinding Wheels

Cited by 11 publications

References 0 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

Optimizing the Grinding Process through Reduction of the Loading of Grinding Tool by Infiltration

Evaluation and investigation of grinding process of biomedical polymer (PEEK)

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