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Effects of ultrasonic vibrations on the porosity and hardness of compacts in the pressing of hard-alloy powder mixtures

  • Theory and Technology of the Component Formation Process
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Soviet Powder Metallurgy and Metal Ceramics Aims and scope

Conclusions

  1. 1.

    A study was made of the effectiveness of ultrasonic vibration in the pressing of powder mixtures employed in the manufacture of drill bits.

  2. 2.

    Experimental data have been obtained on the variation of porosity and hardness with pressure in ultrasonic pressing.

  3. 3.

    It was established that pressing with ultrasonic vibrations decreases the porosity of compacts in the as-pressed state on an average by 10–12% and increases their hardness after infiltration by 20–30%.

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Literature cited

  1. V. S. Rakovskii, in: Powder Metallurgy [in Russian], Sb. Tr. Nauchno-Issled. Avtomob. Prom., Vol. 4 (1965).

  2. L. G. Kostin, L. T. Buchek, and V. M. Shkil', Poroshkovaya Met., No. 4 (1971).

  3. I. G. Shatalova, N. S. Gorbunov, and V. I. Likhtman, Physicochemical Principles of the Vibratory Densification of Powder Materials [in Russian], Nauka, Moscow (1965).

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  4. V. P. Severdenko et al., Ultrasonic Treatment of Metals [in Russian], Minsk (1966).

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Authors and Affiliations

  1. Ukrainian Correspondence Polytechnic Institute, USSR

    L. G. Kostin, L. T. Buchek, V. M. Shkil', N. N. Sumaneev, M. E. Grenader & V. A. Starkov

  2. Tula Experimental Investigation Branch, Central Scientific-Research Prospecting Institute, USSR

    L. G. Kostin, L. T. Buchek, V. M. Shkil', N. N. Sumaneev, M. E. Grenader & V. A. Starkov

Authors
  1. L. G. Kostin
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  2. L. T. Buchek
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  3. V. M. Shkil'
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  4. N. N. Sumaneev
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  5. M. E. Grenader
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  6. V. A. Starkov
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Additional information

Translated from Poroshkovaya Metallurgiya, No. 9(153), pp. 26–29, September, 1975.

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Kostin, L.G., Buchek, L.T., Shkil', V.M. et al. Effects of ultrasonic vibrations on the porosity and hardness of compacts in the pressing of hard-alloy powder mixtures. Powder Metall Met Ceram 14, 717–720 (1975). https://doi.org/10.1007/BF00800239

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  • DOI: https://doi.org/10.1007/BF00800239

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