Thread milling tool having helical flutes

Details Thread milling tool having helical flutes Thread milling tool having helical flutes

B - Operations, Transporting

23

G

B23G 5/20 (2006.01) B23G 5/18 (2006.01)

Patent

CA 2399010

A thread milling tool (10) includes a proximal shank portion (14) and a distal cutting portion (12). The cutting portion (12) includes at least one thread milling tooth (20) and at least one flute (16) oriented helically, or spirally, about a rotational axis (22) of the tool (10). The helix angle (26) of the thread milling tool (10) is at least 20 degrees. The cutting portion (12) may be configured to form internal or external threads in a workpiece as the cutting portion (12) moves relative to the workpiece.

La présente invention concerne une fraise à fileter (10) constituée d'une queue proximale (14) et d'une tête de fraise distale (12). Cette tête de fraise (12) comporte au moins une dent de fraisage (20) et au moins une goujure (16) orientées hélicoïdalement, ou en spirale, autour d'un axe de rotation (22) de la fraise (10). L'angle d'hélice (26) de la fraise à fileter (10) est d'au moins 20 DEG . La tête de fraise (12) peut être configurée pour tailler des filets intérieurs ou extérieurs dans une pièce au fur et à mesure que la tête de fraise (12) se déplace par rapport à la pièce.

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