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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 />

FACE MILLING FORCES DEPEN<strong>DIN</strong>G ON THE<br />

FORCES DEVELOPED ON A SINGLE-TOOTH<br />

BY<br />

ANA-MARIA MATEI and MARIUS NICOLAE MILEA<br />

Abstract. This paper presents some theoretical models for the evaluation of<br />

cutting forces components in face milling, developed on a single−tooth level. The<br />

cutting forces at face milling depend on the every variant of face milling process<br />

(teeth number which simultaneously cut) and the relative position of cutting teeth<br />

and the material being cut (cut - down milling and cut - up milling). Regarding to<br />

this, the determination of cutting force components at face milling FZ, FX, FY is<br />

based on the forces for a single tooth, the cutting tooth position beside the XYZ<br />

coordinates system of the tool and the number of teeth that simultaneously cut.<br />

Key words: cutting, face milling, forces.<br />

1. Introduction<br />

The cutting forces developed during the milling process are affected by a<br />

series of parameters, including cutting feed, the milling depth and width, tooth<br />

number, tooth geometry, the relative position of cutting teeth and the material<br />

being cut, and the hardness of the material being cut. Therefore, the most<br />

calculus models of face milling forces are including these parameters, and also<br />

some specific elements of the tools’ circular motion [1].<br />

This paper presents new theoretical models for the evaluation of cutting<br />

force components at face milling, considering besides the parameters described<br />

above, also the specific elements for each variant of face milling process:<br />

complete (full), symmetrical incomplete or unsymmetrical incomplete, and the<br />

relative position of cutting teeth and the material being cut: cut-down milling<br />

and cut-up milling.<br />

The face milling forces are also depending on the number of teeth that<br />

simultaneously cut (odd or even number of teeth) [2].

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