Integrity of ground cylindrical surface

Holešovský, František; Hrala, Michal

doi:10.1016/j.jmatprotec.2004.04.180

Cited by 12 publications

(11 citation statements)

References 4 publications

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“…Parameters of surface roughness are simplification of real profile, are simply determinable, and have sufficient ability to give account of surface. They are, therefore, already long‐time used in the manufacturing 3 . In this study; Ra, Rz, and Rq were used as the surface roughness values.…”

Section: Roughness and Waviness Measurement Methodsmentioning

confidence: 99%

“…These are chattering, vibration of the machine and workpiece, burning, appearance of unacceptable changes in the surface layer, and microcracks and burns, which cause surface defects, increasing the surface roughness and other defects. These defects are caused by the clamping workpiece, course and magnitude of grinding‐wheel wear, and stiffness of whole machine‐tool‐workpiece‐fixture system 3 …”

mentioning

confidence: 99%

“…In this paper, the results of helically grooved grinding experiments of four materials are presented and compared with those obtained through conventional method. The kind of grinding material influences the surface roughness particularly by mechanical properties of itself and grain geometry 3 . This is because materials of different mechanical properties were selected for the investigation of the effectiveness of helically grooved grinding.…”

mentioning

confidence: 99%

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A Novel Method to Improve Surface Quality in Cylindrical Grinding

Gavas¹,

Karacan

Kaya

2009

Experimental Techniques

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Section: Roughness and Waviness Measurement Methodsmentioning

confidence: 99%

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confidence: 99%

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confidence: 99%

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A Novel Method to Improve Surface Quality in Cylindrical Grinding

Gavas¹,

Karacan

Kaya

2009

Experimental Techniques

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“…A literature study of the process parameters used to optimize the ground surface quality shows that the types of workpiece materials, the grinding conditions, i.e., depth of cut, feed, and speed, and the grinding wheel specifications are significant factors (Holesovsky and Hrala, 2004;Jackson and Mills, 2000). With regard to the effects of varying conditions in metal grinding, the workpiece profile roughness increased sharply with the increase of depth of cut when using alumina grinding wheels (Fathallah et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

Effects of Abrasive Types on Grinding of Chopped Strand Mat Glass Fiber-Reinforced Polymer Composite Laminates

Chockalingam

Kok

2015

Machining Science and Technology

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2 A grindability study of chopped strand mat glass fiber reinforced polymer laminates (CSM GFRP) has been carried out to evaluate the effects of abrasive types on grinding force ratio and area roughness at varying grinding parameters such as speed, feed and depth of cut. Performances of alumina (Al 2 O 3 ) and cubic boron nitride (CBN) wheels were compared. Both wheels delivered the maximum grinding force ratios at low speed, high feed and low depth of cut. Alumina wheel produced smoother surface when grinding at low speed, low feed and high depth of cut. CBN wheel, on the other hand, gave smoother surface at high feed and low depth of cut conditions, regardless of speed. With CBN wheel, it is likely that a single grinding condition exists that maximizes grinding force ratio and minimizes area roughness. The findings indicate that CBN wheel exhibited higher grinding force ratio than alumina grinding wheel in general. CBN grinding wheel also outperformed alumina grinding wheel by producing smoother ground surface in most cases.

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“…These defects are caused by clamping the workpiece, the course and magnitude of the grinding-wheel wear, and the stiffness of the whole machine-tool/workpiece fixture system. 5,6 The effects of a discontinuous workpiece material on the grinding performance were investigated by researchers. 7,8 To control and improve the grinding performance we would have to manufacture engineered grinding wheels with a desirable topography to optimize the metal-cutting process.…”

Section: Introductionmentioning

confidence: 99%

Effects of various helically angled grinding wheels on the surface roughness and roundness in grinding cylindrical surfaces

Gavas¹,

Kina²,

Köklü³

2015

Mater. Tehnol.

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Grinding is generally used in the final step of machining metallic materials to achieve the necessary surface quality and dimensions. Grinding wheels with flat surfaces are commonly used in the process of grinding. However, due to the fact that there is a great deal of contact length (corresponding to the grinding-wheel width) between the grinding wheel and the workpiece, effective cooling during the grinding process may not be possible and, consequently, the heat in the deformation region is increased. Due to these reasons, some undesired results such as an unqualified surface and a roundness error take place. Various profiles of the grinding wheel were, therefore, proposed to improve the surface quality and decrease the roundness error by modifying the grinding wheel and developing various methods. In this study, AISI 1050, AISI 4140 and AISI 7131 steel materials were subjected to the cylindrical-grinding process using wheels helically grooved at 15°, 30°and 45°and the obtained results such as the average surface roughness and roundness errors were compared with the results of the flat-surface grinding wheels. The experimental results show that the surface roughness and roundness error are reduced when using a helically grooved grinding wheel and, thus, the quality of the machined parts is improved. Keywords: cylindrical grinding, helically grooved grinding wheel, roundness error, surface roughness Bru{enje se navadno uporablja kot kon~na stopnja obdelave kovinskih materialov za zagotovitev kvalitete povr{ine in mer. Pri postopku bru{enja se navadno uporabljajo brusni koluti z ravno povr{ino. Vendar pa je zaradi velike kontakne dol`ine (odvisno od {irine brusilnega koluta) med brusilnim kolutom in obdelovancem ote`eno u~inkovito ohlajanje, zato se podro~je deformacije ogreva. Lahko se pojavijo ne`eleni rezultati, kot so neustrezna povr{ina in napaka okroglosti. Za izbolj{anje kvalitete povr{ine in zmanj{anje napak okroglosti so predlagani modificirani brusilni koluti z razli~nimi profili in razli~ne metode. V tej {tudiji so bila jekla AISI 1050, AISI 4140 in AISI 7131 okroglo bru{ena s koluti z vija~nim utorom 15°, 30°in 45°. Dobljeni rezultati, kot sta povpre~na hrapavost povr{ine in napaka okroglosti, so bili primerjani s tistimi, dobljenimi z brusilnimi koluti z ravno povr{ino. Rezultati ka`ejo, da se povr{inska hrapavost in napaka okroglosti zmanj{ujeta pri uporabi brusilnih kolutov z vija~nim utorom, torej se kvaliteta strojnih delov izbolj{a. Klju~ne besede: okroglo bru{enje, brusni kolut z vija~nim utorom, napaka okroglosti, hrapavost povr{ine

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Integrity of ground cylindrical surface

Cited by 12 publications

References 4 publications

A Novel Method to Improve Surface Quality in Cylindrical Grinding

A Novel Method to Improve Surface Quality in Cylindrical Grinding

Effects of Abrasive Types on Grinding of Chopped Strand Mat Glass Fiber-Reinforced Polymer Composite Laminates

Effects of various helically angled grinding wheels on the surface roughness and roundness in grinding cylindrical surfaces

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