Cutting plate for an end mill

B - Operations – Transporting – 23 – C

Patent

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Details

B23C 5/20 (2006.01) B23C 5/10 (2006.01)

Patent

CA 2537279

The invention relates to a cutting plate for mechanical milling whose basic shape is embodied in the form of a parallelogram and whose longitudinal sides (1) are provided with straight cutting edges extended on the small corners of the parallelogram by rounded cutting edges (2) and by edges embodied in the areas of the transversal sides thereof. The aim of said invention is to use the transversal sides of the basic shape of the cutting plate for milling processing. For this purpose, the transversal sides of the parallelogram are provided with convexly curved cutting edges (3) whose at least one curvature radius (R2) is a multiple of the curvature radius (R1) of the rounded cutting edges. A concavely curved edge area (4) is arranged between the less-curved cutting edges and the rounded cutting edges.

L'invention concerne un disque de coupe pour le fraisage sur machine, la forme de base de ce disque étant un parallélogramme dont les côtés longitudinaux (1) sont dotés d'arêtes de coupe droites, lesquelles se prolongent par des arêtes de coupe arrondies (2) au niveau des angles plus étroits du parallélogramme et par des arêtes dans la zone des côtés transversaux du parallélogramme. L'invention vise à utiliser également les côtés transversaux de la forme de base du disque de coupe pour des opérations de fraisage. A cet effet, les côtés transversaux du parallélogramme sont pourvus d'arêtes de coupe à courbure convexe (3), dont au moins un rayon de courbe (R2) est un multiple du rayon de courbe des arêtes de coupe arrondies (R1). Entre ces arêtes de coupe à courbure moins prononcée et les arêtes de coupe arrondies se trouve une zone d'arête (4) à courbure concave.

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