2013
DOI: 10.1109/tia.2013.2261041
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Estimation of the Magnetic Properties of the Damaged Area Resulting From the Punching Process: Experimental Research and FEM Modeling

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Cited by 75 publications
(28 citation statements)
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“…This is in line with the publications about the annealing effect on SiFe lamination sheets, where the hysteresis losses are significantly reduced after the annealing process [47], [48]. The annealing process relieves mainly the imposed stress from cutting and punching the material, but the magnetic grains are also growing during this process [49]. Both mentioned factors influence basically only the hysteresis losses, as it is also shown in Table II.…”
Section: Treatment Of Laminated Materialssupporting
confidence: 87%
“…This is in line with the publications about the annealing effect on SiFe lamination sheets, where the hysteresis losses are significantly reduced after the annealing process [47], [48]. The annealing process relieves mainly the imposed stress from cutting and punching the material, but the magnetic grains are also growing during this process [49]. Both mentioned factors influence basically only the hysteresis losses, as it is also shown in Table II.…”
Section: Treatment Of Laminated Materialssupporting
confidence: 87%
“…In literature, the variations in the material properties and core loss due to the manufacturing process on the stator core are investigated in [3][4][5][6][7][8][9][10][11][12][13]. However, there is a very small amount of literature that considers the effect of machining processes on the actual machine performance.…”
Section: Materials and Manufacturing Effects On Machine Designmentioning
confidence: 99%
“…It is well known [3][4][5][6][7][8][9][10][11][12][13] that these manufacturing processes all have a significant and permanent effect on the magnetic properties of the material, especially on the BH curve and the specific core loss properties of the material. This implies that the materials being used for the actual machine no longer reflect the material properties given by their original data sheets.…”
Section: Introductionmentioning
confidence: 99%
“…In order to practically cope with this problem, the conventional guillotine punching is often substituted by the time consuming water cutting or spark erosion methods. We see in Figure 7a how Modeling the detrimental effect of cutting on magnetic losses is typically pursued through phenomenological approaches and numerical methods, where the properties of the work-hardened narrow band running along the damaged sheet edges compound with the contribution of the undamaged inner region of the sheet [3,[30][31][32]. By approximating the fall of the magnetization level across the work-hardened bands at the edges of the strip with a step-like function, we assign, for any given field H, the magnetization values J pc to the hardened side bands of width L c and the value J p0 > J pc to the inner region of width w 0 = w − 2L c (see inset of Figure 7b).…”
Section: Strain Hardening By Cuttingmentioning
confidence: 99%
“…By measuring the magnetization curve at two strip widths, one can derive the quantities J p0 and (J p0 − J pc ) L c as a function of H. We then obtain a family of curves for a convenient number of H values, which describe the dependence of J p on w, until the minimum width 2L c . The overall behavior of these curves permits one to estimate L c , which is typically of the order of 1-3 mm, depending on the cutting method [3,33]. Using then the same simplifying scheme leading to Equation (2), we write for the hysteresis loss W h at given J p value…”
Section: Strain Hardening By Cuttingmentioning
confidence: 99%