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Communication Dans Un Congrès Année : 2003

MODELING END MILLING WITH RUNOUT

Résumé

The instantaneous uncut chip thickness and specific cutting forces have a significant effect on predictions of cutting force. The instantaneous uncut chip thickness is estimated by following the movement of the position of the center of a cutter. To model analytically milling forces it is necessary to compute the chip volume and the specific cutting pressure. By the expression to uncut chip thickness proposed by (Kline & DeVor, 1983), the force model of end milling with cutter runout is established. This paper analyzes the behavior of the specific cutting pressures on end milling by calculating, from experimental data force, the pressure on each moment of cut considering the cutting force as much the edge force effect. Runout has been a limiting factor for achievable productivity in machining due to its adverse effects on tool life and part quality. The presence of cutter runout generates a cutting force component at the spindle rotational frequency and increases the average chip thickness for those teeth actually engaged in the cut. After the cutting pressure analysis some comparisons with previously published experiments by Yun & Cho (2001) will be done.
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Dates et versions

hal-03212302 , version 1 (29-04-2021)

Identifiants

  • HAL Id : hal-03212302 , version 1

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Anna Carla Araujo, Ricardo Rodrigues Alvarez, José Luís Silveira. MODELING END MILLING WITH RUNOUT. COBEM, 2003, ompletar, Brazil. ⟨hal-03212302⟩
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