New approach for cooling and lubrication in dry machining on the example of internal cylindrical grinding of bearing rings

Nadolny, Krzysztof; Kieraś, Seweryn

doi:10.1016/j.susmat.2020.e00166

Cited by 14 publications

(5 citation statements)

References 45 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the tests of the internal cylindrical grinding process described by Nadolny and Kieraś [131], a small size grinding wheel impregnated with colloidal suspension made with 20% addition of hexagonal boron nitride hBN powder was used. Additionally, CCA was delivered generated by the CAG nozzle delivered by compressed air at a pressure of 0.6 MPa, which allowed to reduce the gas temperature to about − 5 °C.…”

Section: Dry Grinding With Impregnated Grinding Wheels and Delivery Omentioning

confidence: 99%

“…These observations can be explained by the active influence of the impregnating substance on the tribological conditions in the grinding zone resulting in limiting the chip adhesion to the GWAS. On the surface of an untreated wheel, a much higher share and larger sizes of chip cloggings (both single abrasive vertices and intergranular spaces) formed under non-hBN grinding conditions were shown [131]. Tables 2, 3 and 4 presents a synthetic overview of the cooling and lubrication agents described in the literature as well as the methods of their delivery to the GWAS-workpiece contact zone in respect of liquids (Table 2), gases and solids (Table 3) as well as hybrid methods (Table 4).…”

Section: Dry Grinding With Impregnated Grinding Wheels and Delivery Omentioning

confidence: 99%

See 1 more Smart Citation

Modern Approach to Delivery Coolants, Lubricants and Antiadhesives in the Environmentally Friendly Grinding Processes

Nadolny

Kieraś

Sutowski

2020

Int. J. of Precis. Eng. and Manuf.-Green Tech.

Self Cite

View full text Add to dashboard Cite

Control of thermal conditions in the grinding zone is possible through effective delivery of substances with cooling, lubricating and antiadhesive properties during the machining process. In addition to the benefits of coolants, however, a number of economic and ecological problems arise, which include the costs of purchase, use and maintenance as well as the environmental impact of its disposal. These negative aspects of the use of cooling and lubricating liquids have contributed to the modern trend of minimizing their output in machining processes, including grinding. This article presents comprehensive characteristics of knowledge in the field of liquids, gases and solids with cooling, lubricating and antiadhesive properties. The author’s original classification of cooling and lubricating agents by their physical state was proposed and a complete list of known modern environmentally friendly methods of cooling and lubrication of the grinding zone was presented. In order to highlight their beneficial features, the background of conventional methods of delivery coolants, lubricants and antiadhesives to the grinding zone used for years were also characterised. A comprehensive list of all known methods of cooling and lubrication of the grinding zone classified according to the physical state of the delivered medium with a clear separation of hybrid methods consisting in simultaneous delivery of many cooling and lubricating agents was described in the summary. The article concludes with the characteristics of directions of further development in the field of cooling and lubrication of the grinding zone.

show abstract

Section: Dry Grinding With Impregnated Grinding Wheels and Delivery Omentioning

confidence: 99%

Section: Dry Grinding With Impregnated Grinding Wheels and Delivery Omentioning

confidence: 99%

Modern Approach to Delivery Coolants, Lubricants and Antiadhesives in the Environmentally Friendly Grinding Processes

Nadolny

Kieraś

Sutowski

2020

Int. J. of Precis. Eng. and Manuf.-Green Tech.

Self Cite

View full text Add to dashboard Cite

show abstract

“…The dry grinding method negatively impacts the equipment's durability due to high friction, coating formation, and clogging [17], [18]. The wet grinding method provides better efficiency and equipment durability [19], [20].…”

Section: Table 1 Results In Washing Water After Washed Stagementioning

confidence: 99%

The Effects of Dry and Wet Grinding Processes on The Salt Quality

et al. 2021

View full text Add to dashboard Cite

Studies were conducted on the salt quality, such as NaCl percent and whiteness achieved by dry and wet grinding methods. Crude solar salt is carefully collected from traditional solar salt ponds to ensure the uniformity of the sample. Several salt processing methods were applied in this research, such as washing, grinding, and dewatering by centrifuge hydro extractor and drying. The effect of reducing salt particle size to 0.6 and 0.25 mm was also studied. The dry grinding method is conducted before the washing stage, while the wet grinding method is applied after the washing stage. Both dry and wet grinding methods provide high-quality salt products, indicating high NaCl percent and whiteness. The dry grinding method produces higher NaCl percent and whiteness than the wet grinding method. However, the wet grinding method was better in water management and equipment durability with loss of salt losses during the washing stage. Finally, both grinding methods have advantages and disadvantages, so for developing the salt processing industry, both methods should be correctly chosen and match product output requirements.

show abstract

“…Critical Reynolds number Rec is the Reynolds number when the grinding fluid on the workpiece surface changes from laminar flow to turbulent flow. For the flow of twodimensional fluid outwardly swept solid surface, the critical Reynolds number is generally taken as 5×10 5 .…”

Section: ( )mentioning

confidence: 99%

“…During the grinding process, the grinding fluid is an important means of dissipating heat from the grinding arc area. The characteristics of airflow around the grinding wheel is another topic that cannot be avoided when the grinding fluid breaks through the airflow barrier to enter the grinding arc for cooling and lubrication [5][6][7][8] . Therefore, scholars at domestic and overseas have carried out a lot of theoretical and experimental research work on the flow field and convective heat transfer characteristics in the grinding zone.…”

Section: Introductionmentioning

confidence: 99%

Study on flow field and convective heat transfer characteristics in grinding zone of large spiral angle flow disturbance grooved wheel

Mao,

Liu,

Jiang

et al. 2023

Int J Adv Manuf Technol

View full text Add to dashboard Cite

In view of the high specific removal energy, high heat generation rate, low heat transfer efficiency, easy to produce local high temperature and grinding burns, new macrostructured grinding wheel forms were proposed, namely, Large Spiral-angle Grooved Grinding Wheels (LSG-GW, β>85°) and Large Spiral-angle flow Disturbance Grooved Wheels (LSDG-GW). Considering the influence of wheel parameters, groove parameters and process parameters, an analytical model of the airflow field in the wedge area and contact area of LSG-GW was established. Analytical model of gas-liquid two-phase flow field and theoretical model of convective heat transfer coefficient distribution in heat transfer channels were established.The results showed that increasing the groove width, groove depth and the spiral angle can reduce the pressure of the flow field in the air barrier layer and make it easier for the grinding fluid to enter the grinding contact area. The LSDG-GW further reduces the grinding fluid back flow and side flow intensity, proving that the flow disturbance structure can bring in more grinding fluid into the grinding contact area. A theoretical model for the distribution of convective heat transfer coefficient in the grinding contact area was derived, and the analysis results proved that the flow disturbance structure can significantly improve the convective heat transfer coefficient in the grinding contact area. The LSDG-GW, as a new macro surface structured grinding wheel, has a very promising application in the high efficiency and high precision grinding process of difficult-to-machine alloy materials.

show abstract

New approach for cooling and lubrication in dry machining on the example of internal cylindrical grinding of bearing rings

Cited by 14 publications

References 45 publications

Modern Approach to Delivery Coolants, Lubricants and Antiadhesives in the Environmentally Friendly Grinding Processes

Modern Approach to Delivery Coolants, Lubricants and Antiadhesives in the Environmentally Friendly Grinding Processes

The Effects of Dry and Wet Grinding Processes on The Salt Quality

Study on flow field and convective heat transfer characteristics in grinding zone of large spiral angle flow disturbance grooved wheel

Contact Info

Product

Resources

About