Method for grooving the bore of a tube and grooving tool-holder
AssigneeGiat Industries
InventorDenis Degesne
Life of this patent
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Abstract
A process to produce alternately concave and convex grooves that are evenly spaced inside a tube, wherein said process comprises the following steps: at least one simultaneous broaching stage for all said grooves of said tube using at least one roughing tool and/or at least one finishing tool, said being tools made integral with a handle bar using linking means, said different roughing tools being implemented successively and having a convex profile that gradually approaches the concave profile of said grooves, at least one finishing tool having a concave profile to make the convex profile of said grooves.
Claims16
A process to produce alternately concave and convex grooves that are evenly spaced inside a tube, wherein it comprises at least one simultaneous broaching stage for all the grooves of the tube using at least one roughing tool and/or at least one finishing tool, tools made integral with a handle bar using linking means, the different roughing tools being implemented successively and having a convex profile that gradually approaches the concave profile of the grooves, at least one finishing tool having a concave profile to make the convex profile of the grooves.
Dependencies are inferred from the claim text.