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Tomčík P., Hrubý J. |
COMPARISON INFLUENCE OF THE ALTERNATING MAGNETIC FIELD AND THE STEADY MAGNETIC FIELD ON FLOW STRESS CURVE DURING COLD COMPRESS TEST |
Abstract
In this paper is comparison influence steady magnetic field and alternating magnetic field on value flow stress at compression test. The experiments with the steady magnetic field were make in two parts. The first part was done with magnetic flux, which was opposite direction with direction of motion down tool. The second part was done with magnetic flux, which was identical direction with direction of motion down tool. The experiments show, that the steady magnetic field makes hardening. Whereas alternating magnetic field makes softening. The alternating magnetic field was a similar beginning value of magnetic intensity as alternating magnetic field. In during compress test value of magnetic intensity alternating magnetic field decreasing.
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Keywords: flow stress|strain|steady magnetic field|alternating magnetic field|magnetic intensity| |
No 3 (2003), p. 177-181 |
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Kristofory F., Mohyla M., Mikuláš D., Vítek J. |
HARDNESS OF NICKEL ELECTRODEPOSITS |
Keywords: cathodic deposition|nickel|sulphosalicylate|hardness|heat treatment|wear resistance| |
No 3 (2003), p. 203-209 |
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Zegzulka J. |
LOGISTICS OF BULK MATERIALS |
Keywords: logistics of bulk material|mechanical and physical properties|optimum consumption energy| |
No 3 (2003), p. 240-244 |
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