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Galaţi, Romania

Berbinschi S.,Universitatea Dunrea Of Jos | Teodor V.G.,Universitatea Dunrea Of Jos | Frumusanu G.R.,Universitatea Dunrea Of Jos | Oancea N.,Universitatea Dunrea Of Jos
Academic Journal of Manufacturing Engineering | Year: 2014

In this paper, we present a graphical method, developed in CATIA environment, based on the method of substituting circles family and dedicated to profile pinion cutters for generating interior surfaces. Hereby, the family of substituting circles associated to the worked piece (the profile to be generated) is determined at the same time to the curve transposed, in the rolling motion, to the tool centrode. After finding the position of the contact points between the generated profile and the family circles, we can determine, in the transposed family, the locus of the points from the reciprocal enwrapping profile - the pinion cutter profile. The paper also includes two method applications, for generating a hole with square transversal section, and a pump stator with trapezoidal profile. Comparisons between the profiling results when using the graphical method, versus an analytical method have also been realized. The results are proving the coincidence between the two profiles determined as above, on one hand, and both rapidity and precision of the graphical method, on the other hand. © 2014, Academic Association for Manufacturing Engineering. All rights reserved. Source

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