A magnetic method for the determination of residual stress

Abuku, Seiichi; Cullity, B. D.

doi:10.1007/bf02324218

Cited by 34 publications

(15 citation statements)

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“…Norton Quantum is a specific grinding wheel as a mixture of progressive SG grain and newly developed type of bonding. Producer guaranties longer dressing intervals, longer grinding wheel life time, lower energy consumption and stable grinding process at higher removal rates without coolant, unacceptable grinding chatter as well as surface burn [1,2,3]. Being so, this study verifies the abovementioned advantages of Norton Quantum grinding wheel and compares its cutting ability with conventional alumina wheel.…”

Section: Introductionmentioning

confidence: 59%

“…For this reason grinding technology is rapidly developed in a variety of its aspects such as grinding machines design, coolant, dressing process as well as grinding wheel to increase productivity, decrease energy and time consumption and the corresponding costs, elongate dressing intervals and enhance quality of ground parts [1,2,3]. Specific cutting ability of grinding wheels based on SG (seeded gel) or TG (targa gel) grains was previously studied and reported [1,2,3]. Grain of SG or TG grinding wheels is entirely composed of hundreds or thousands micro grains instead more rough structure of conventional alumina grains.…”

Section: Introductionmentioning

confidence: 99%

“…Such structure (SG or TG) favors microchipage of grinding grain and keeps grain sharp in the long term point of view. However, microchipage take place mainly at higher removal rates [1,2,3] whereas lower removal rates are less recommended. Except grinding grain structure also bonding of grinding wheel undergoes the process of intensive research.…”

Section: Introductionmentioning

confidence: 99%

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Performance of Norton Quantum Grinding Wheels

Neslušan

Baďurová

Mičietová

et al. 2016

KEM

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This paper deals with cutting ability of progressive Norton Quantum grinding wheel during grinding roll bearing steel 100Cr6 of hardness 61 HRC. Cutting ability of this wheel is compared with conventional grinding wheel and based on measurement of grinding forces as well as surface roughness. Results of experiments show that Norton Quantum grinding wheels are capable of long term grinding cycles at high removal rates without unacceptable occurrence of grinding chatter and surface burn whereas application of conventional wheel can produce excessive vibration and remarkable temper colouring of ground surface. Moreover, while Norton Quantum grinding wheel gives nearly constant grinding forces and surface roughness within ground length at higher removal rates, conventional grinding wheel (as that reported in this study) does not.

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Section: Introductionmentioning

confidence: 59%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Performance of Norton Quantum Grinding Wheels

Neslušan

Baďurová

Mičietová

et al. 2016

KEM

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“…Historically, most probably the first attempt to avail of magnetic methods in order to determine residual stress in cylindrical metal bars was undertaken in 1971 by Abuku and Cullity, who have carried out a number of measurements of the reversible effective permeability at different bias field strengths for nickel and steel rods and concluded that this quantity increases almost linearly with tensile stress [28].…”

Section: Discussionmentioning

confidence: 99%

Estimation of the Level of Residual Stress in Wires with a Magnetic Method

Suliga¹,

Borowik²,

Chwastek³

2015

Archives of Metallurgy and Materials

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Residual stress present in wires after drawing process affects their magnetic properties. The paper presents a concept to estimate the level of residual stress on the basis of measurements of hysteresis loops. In order to describe the effect qualitatively the Jiles-Atherton-Sablik description is adapted. On the basis of variations in hysteresis loop shapes the average values of residual stress in wires for different single draft values are determined. It was found that the estimated average values by magnetic stresses are comparable with the results of numerical modeling and experimental studies.Keywords: residual stress, wire drawing, hysteresis loop, effective field Naprężenia własne istniejące w drutach po procesie ciągnienia mają wpływ na ich właściwości magnetyczne. W pracy przedstawiono koncepcję oszacowania poziomu naprężeń własnych drutów na podstawie pomiarów pętli histerezy. W celu jakościowego opisu zjawiska zaadaptowano model Jilesa-Athertona-Sablika. Na podstawie zmian kształtu pętli histerezy oszacowano średnie wartości naprężeń własnych dla drutów ciągnionych z różnymi wartościami gniotu pojedynczego. Stwierdzono, że oszacowane metodą magnetyczną średnie wartości naprężeń własnych są porównywalne z wynikami z modelowania numerycznego i badań eksperymentalnych.

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“…It is well known that the surface of high hardness gives the poor BN values whereas softer structures emit higher BN values. Further, magneto elastic responses are suppressed when compressive stresses occur while more pronounced BN values can be detected for the surface containing mainly tensile stresses due to increasing domains parallel with the direction of magnetic field (while the domains perpendicular to the load are decreasing) [2,3].…”

Section: Introductionmentioning

confidence: 99%

Detection of grinding burn through the high and low frequency Barkhausen noise

et al. 2017

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Original scientific paper This paper deals with detection of surface damage after grinding through non-destructive micro magnetic technique based on Barkhausen noise. Paper compares the high and low frequency techniques and their sensitivity to detect surface burn and thickness of heat affected zone. The results of investigation indicate that the low frequency technique can more clearly detect surface burn than the high frequency technique due to relatively high thickness of heat affected zones obtained after grinding operations. The paper also discusses additional aspects of micro magnetic testing as a multi parametric technique where such parameters as Peak Position of Barkhausen noise loop correlate with the thermal load of machined surface. The paper also reports about corresponding structure transformations and associated stress state beneath the surface. Keywords: Barkhausen noise; detection; grinding; surface burn Otkrivanje brusne opekline putem visoke i niske frekvencije Barkhausenovog šumaIzvorni znanstveni članak Rad razmatra pojavu oštećenja površine nakon brušenja putem nedestruktivnog mikro magnetskog načina rada temeljenog na Barkhausenovom šumu. Uspoređuju se metode visoke i niske frekvencije i njihova osjetljivost u otkrivanju površinske opekline i debljine zone pod utjecajem topline. Rezultati istraživanja pokazuju da se metodom niske frekvencije može jasnije otkriti površinska opeklina nego metodom visoke frekvencije zbog relativno velike debljine zona pod utjecajem topline nastalih nekon brušenja. U radu se također raspravlja o dodatnim aspektima mikro magnetskog ispitivanja kao multi parametrijske metode u kojoj su parametri kao što je vršni položaj petlje Barkhausenovog šuma u korelaciji s toplinskim opterećenjem obrađivane površine. U radu se također daju odgovarajuće promjene u strukturi i s tim povezano naprezanje ispod površine.

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A magnetic method for the determination of residual stress

Cited by 34 publications

References 0 publications

Performance of Norton Quantum Grinding Wheels

Performance of Norton Quantum Grinding Wheels

Estimation of the Level of Residual Stress in Wires with a Magnetic Method

Detection of grinding burn through the high and low frequency Barkhausen noise

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