This paper presents a new method of computing constant scallop height tool paths in 5-axis milling on sculptured surfaces Usually iso-scallop tool paths computation methods are based on approximations The attempted scallop height is modelled in a given plane to ensure a fast computation of the tool path We propose a different approach based on the concept of the machining surface which ensures a more accurate computation The machining surface defines the tool path as a surface which applies in 3 or 5-axis milling with the cutting tools usually used The machining surface defines a bi parametric modelling of the locus of a particular point of the tool and the iso-scallop surface allows to easily find iso-scallop tool centre locations An implementation of the algorithms is done on a free-form surface with a filleted endmill in 5-axis milling
from HAL : Dernières publications http://ift.tt/1DDckce
from HAL : Dernières publications http://ift.tt/1DDckce

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