CUTTING TOOL WITH CHISEL EDGE

A twist drill has double margins and a chisel edge angle of between 80 degrees and 100 degrees to maximize hole straightness and to minimize 'walking' of the drill upon a workpiece. The drill may be modular having a removable tip body or the drill may be of a solid configuration. A tip bod...

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Bibliographic Details
Main Authors SCHWAEGERL, JUERGEN, SAMPATH, KARTHIK
Format Patent
LanguageEnglish
French
Published 17.09.2009
Subjects
BORING
MACHINE TOOLS
METAL-WORKING NOT OTHERWISE PROVIDED FOR
MILLING
PERFORMING OPERATIONS
TRANSPORTING
TURNING
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Summary:A twist drill has double margins and a chisel edge angle of between 80 degrees and 100 degrees to maximize hole straightness and to minimize 'walking' of the drill upon a workpiece. The drill may be modular having a removable tip body or the drill may be of a solid configuration. A tip body is consumable and may be removed and replaced as required. Un foret hélicoïdal comporte deux marges et un angle d'arête centrale compris entre 80 degrés et 100 degrés afin de maximiser la rectitude du trou et de réduire à un minimum le 'déplacement' du foret sur une pièce. Le foret peut être modulaire et comporter un corps de pointe amovible ou le foret peut être de configuration solide. Un corps d'extrémité est consommable et peut être retiré et remplacé si besoin.
Bibliography:Application Number: WO2009US35973