Efficient, defect-free manufacturing of high-temperature superconducting (HTS) wires and tapes is critical to a variety of defense and electrical power applications. To contribute to the improvement of these manufacturing operations, an analytical and experimental study of the early stages of the multipass rolling process for transforming HTS wires into tapes was conducted. The rolling process was simulated by a three-dimensional (3D) finite element model that uses the Drucker-Prager Cap plasticity model to represent the powder core and a Von-Mises plasticity model with isotropic hardening to represent the silver sheath. The predicted cross-sectional geometry of the tapes is compared with experiments. The results show that the tape cross-sectional geometry and powder core sizes can be predicted accurately. Further, alternate boundary conditions were found to have minimal effect on the predicted cross-sectional geometry for the range of reductions considered, even though the frictional shear stress distributions were significantly different.
Issue Section:
Technical Papers
1.
Selvamanickam
, V.
, Hazelton
, D. W.
, Motowidlo
, L.
, Krajula
, F.
, Hoehn
, J.
, Walker
, M. S.
, and Haldar
, P.
, 1998
, “High-Temperature Superconductors for Electric Power and High-Energy Physics
,” J. Met.
, 50
(10
), pp. 27
–30
.2.
Herrmann, P. F., Be´ghin, E., Duperray, G., Grivon, F., Legat, D., Leriche, A., Tavergnier, P. J., Marlin, P., and Parasie, Y., 1998, “Pre-Industrial PIT Conductor and Coil Development at Alcatel,” presented at the Applied Superconductivity Conference, Desert Springs, CA.
3.
Zeng
, R.
, Beales
, T. P.
, Liu
, H. K.
, and Dou
, S. X.
, 1998
, “Optimal Reduction in Rolling Ag-Sheathed Bi-2223 Multifilamentary Tapes
,” Supercond. Sci. Technol.
, 9
, pp. 299
–303
.4.
Yuan
, D.-W.
, Majer
, W. J.
, and Francarilla
, T. L.
, 2000
, “Fabrication of Laminated Bi-2212/Ag Multifilamentary Tape
,” Supercond. Sci. Technol.
, 13
, pp. 287
–290
.5.
Blumenthal
, W. R.
, Zhu
, Y. T.
, Lowe
, T. C.
, and Asaro
, R. J.
, 1996
, “Deformation State Effects on the Jc of BSCCO Tapes
,” Physica C
, 260
, pp. 33
–40
.6.
Asaro
, R. J.
, Ahzi
, S.
, Blumenthal
, W. R.
, and DiGiovanni
, A.
, 1992
, “Mechanical Processing of High Jc BSCCO Superconductors
,” Philos. Mag. A
, 66
, No. 4
, pp. 517
–538
.7.
Schoenfeld
, S. E.
, Ahzi
, S.
, Asaro
, R. J.
, and Blumenthal
, W. R.
, 1996
, “The Bulk Processing of 2223 BSCCO Powders: Part I: Densification and Mechanical Response
,” Philos. Mag. A
, 73
, No. 6
, pp. 1565
–1590
.8.
Schoenfeld
, S. E.
, Asaro
, R. J.
, Ahzi
, S.
, Bingert
, J. F.
, and Willis
, J. O.
, 1996
, “The Bulk Processing of 2223 BSCCO Powders: Part II: Tape Rolling
,” Philos. Mag. A
, 73
, No. 6
, pp. 1591
–1620
.9.
Korzekwa
, D. A.
, Bingert
, J. F.
, Podtburg
, E. J.
, and Miles
, P.
, 1994
, “Deformation Processing of Wires and Tapes Using the Oxide-Powder-in-Tube Method
,” Appl. Supercond.
, 2
, No. 3/4
, pp. 261
–270
.10.
Kovac
, P.
, Husek
, I.
, and Pachla
, W.
, 1997
, IEEE Trans. Appl. Supercond.
, 7
, p. 2098
2098
.11.
Han
, Z.
, Skov-Hansen
, P.
, and Freltof
, T.
, 1997
, “The Mechanical Deformation of Superconducting BiSrCaCuO/Ag Composites
,” Supercond. Sci. Technol.
, 10
, pp. 371
–387
.12.
Yuan
, D.-W.
, Aesoph
, M. D.
, and Kajuch
, J.
, 1997
, “Influence of Powder Characteristics on the Green Compacts of Bi-2212 Powders
,” J. Mater. Res.
, 12
(1
), pp. 21
–27
.13.
Sengupta
, S.
, 1998
, “High-Temperature Superconductors: Synthesis Techniques and Application Requirements
,” J. Met.
, 50
(10
), pp. 19
–26
.14.
Yuan, D.-W., Pollock, M. J., and Kajuch, J., 1997, “Effective Fabrication Practices for Ag-Sheathed Bi-2212 Superconductors,” High-Temperature Superconductors: Synthesis, Processing, and Applications II, (Orlando, FL), U. Balachandran and P. J. McGinn, eds., TMS, pp. 35–42.
15.
Yuan
, D.-W.
, and Kajuch
, J.
, 1998
, “Process Optimization for Ag-Sheathed Bi-2212 Superconductors
,” J. Supercond.
, 11
(5
), pp. 569
–573
.16.
Funahashi
, R.
, Matsubara
, I.
, Ueno
, K.
, and Ishikawa
, H.
, 1999
, “Mechanism of Bi2Sr2CaCu2Ox Crystallization and Superconducting Properties for Bi2Sr2CaCu2Ox/Ag Tapes Prepared Using Isothermal Partial Melting Method
,” Physica C
, 311
, pp. 107
–121
.17.
Shivpuri
, R.
, and Chou
, P. C.
, 1989
, “A Comparative Study of Slab, Upper Bound and Finite Element Methods for Predicting Force and Torque in Cold Rolling
,” Int. J. Mach. Tools Manuf.
, 29
, pp. 305
–322
.18.
Lee
, J. D.
, 1998
, “A Large-Strain Elastic-Plastic Finite Element Analysis of Rolling Process
,” Comput. Methods Appl. Mech. Eng.
, 161
, pp. 315
–347
.19.
Yuan
, D.-W.
, Pollock
, M. J.
, and Kajuch
, J.
, 1997
, “Drawing of Ag-Clad Bi2Sr2CaCu2O8 Superconductor Wires
,” Supercond. Sci. Technol.
, 10
, pp. 52
–57
.20.
Tangrila, S., Shah, R., and Rachakonda, S., 1995, “Densification Behavior of BSCCO-2212 Superconducting Powder During the Wire Drawing of Powder-in-Tube (PIT) Samples,” AMD-Vol. 216, Net Shape Processing of Powder Materials, ASME, pp. 129–140.
21.
Pandheeradi, M., 1996, “Modeling the Superconductor Wire Drawing Process,” Bi-2212 High Temperature Superconductor Manufacturing Technology Development Workshop, Concurrent Technologies Corporation, Johnstown, PA.
22.
Kajuch, J., Yuan, D. W., Pandheeradi, M., Pollock, M., Aesoph, M., and Thirukkonda, M., 1997, “Manufacturing Technology of Monofilament Bi-2212 Wires and Tapes,” NCEMT Report.
23.
Hibbitt, Karlsson and Sorensen, Inc., 1997, ABAQUS Theory Manual, Version 5.7.
24.
Hibbitt, H. D., 1984, Nucl. Eng. Des., Vol. 77, pp. 271-297.
25.
Yuan
, D.-W.
, Pollock
, M. J.
, and Kajuch
, J.
, 1998
, “Effect of Rolling on Properties of Monofilamentary Bi-2212 Superconductor Tapes
,” Physica C
, 302
, pp. 1
–9
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