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Journal of Applied Sciences

Year: 2004 | Volume: 4 | Issue: 4 | Page No.: 526-530
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Research Article

Mathematical Aspect for Worm Grinding Using a Toroidal Tool

Tareq A. Abu Shreehah and Rasheed A. Abdullah

ABSTRACT

This paper is an attempt to improve the accuracy of the worm gearings with concave profile of the worm thread by using a new generating surface of grinding wheel to eliminate the lacks of the popular worm gearings and extensioning the field of investigation. The present study propose grind concave profile worms by means of toroidal tool - grinding wheel which section in the axial plane is an arc of parabola. The generating equation of the grinding wheel surface and the arrangement of this wheel with respect to the worm during grinding of its thread was determined.
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REFERENCES

  1. Litvin, F.L., 1962. New Type of Cylindrical Worm Gearing. Mashgiz, Moscow.
  2. Litvin, F.L., 1968. Theory of Toothed Gearing. McGraw-Hill, New York.
  3. Nieumann, G. and E. Heyer, 1953. Untersuchungen an schneckengetrieben. VDI, Heft 6, S. pp: 147-157.
  4. Townsend, D., 1992. Dudleys Gear Design Hand Book. 2nd Edn., McGraw-Hill, UK.

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