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BULETINUL INSTITUTULUI POLITEHNIC DIN IAŞI - Universitatea ...

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<strong>BULETINUL</strong> <strong>INSTITUTULUI</strong> <strong>POLITEHNIC</strong> <strong>DIN</strong> <strong>IAŞI</strong><br />

Publicat de<br />

<strong>Universitatea</strong> Tehnică „Gheorghe Asachi” din Iaşi<br />

Tomul LVI (LX), Fasc. 2, 2010<br />

Secţia<br />

CONSTRUCŢII DE MAŞINI<br />

CONTRIBUTIONS TO THE ELABORATIONS OF A<br />

GRAPHICAL METHOD FOR PROFILING OF TOOLS WHICH<br />

GENERATE BY ENVELOPING<br />

II. APLICATION FOR RACK-GEAR TOOL’S PROFILING<br />

SILVIU BERBINSCHI, VIRGIL TEODOR,<br />

NICOLAE DUMITRAŞCU and NICOLAE OANCEA<br />

Abstract. In this paper is presented an application of the general algorithm<br />

regarding the tool’s profiling which generate by enveloping, by rolling method,<br />

respectively the rack-gear tool generating an ordered curl of profiles. They are<br />

presented the successive steps of this process and, also, numerical examples<br />

regarding the crossing profile of the rack-gear tool. The method quality is proofed<br />

by comparing the obtained results with results obtained for the same problem,<br />

using one of the analytical methods, the Willis method, and software developed in<br />

Java.<br />

Key words: enveloping surfaces, rack-gear tool, graphical design method.<br />

BY<br />

1. Introduction<br />

It was present the general algorithm for profiling the tools generating by<br />

enveloping, by the rolling method, in the CATIA design environment.<br />

In following are presented an application of the proposed algorithm for<br />

rack-gear tool’s profiling generating ordered curl profiles, for a hexagonal shaft,<br />

as so as, the comparison for the profile determination of the rack-gear tool with<br />

results obtained by analytical methods, based on specialised software, realised<br />

in Java [6], [7].<br />

In the paper entitled “Contributions to the Elaborations of a Graphical Method for<br />

Profiling of Tools Which Generate by Enveloping. I. Algorithm” is proposed a new

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