Reaming element, reaming tool and method for the production thereof
AssigneeKomet Group GmbH
InventorErkan Hodza
Life of this patent
Estimating the term…
Abstract
A reaming element for a reaming tool capable of being driven to rotate about an axis of rotation for fine machining of a prefabricated bore, the reaming element having a front main cutting edge and a secondary cutting edge adjoining the radially outward end of the main cutting edge, wherein the main cutting edge and the secondary cutting edge delimit a chip-removing surface, and a polished chamfer, which forms a support zone for guidance on the wall of the bore, is formed between the secondary cutting edge and the rear flank face thereof. The support zone is smaller than the polished chamfer and is kept a lateral distance away from the secondary cutting edge by an intermediate part, more particularly, a recessed intermediate part of the polished chamfer.
Claims6
A reaming element for a reaming tool, capable of being driven rotatingly about a rotational axis, for fine machining of a previously produced bore, comprising a frontal main cutting edge and a secondary cutting edge directly adjacent to and extending from a radially outer end of the main cutting edge, wherein the main cutting edge and the secondary cutting edge delimit a cutting face, and a ground land, which forms a support zone for guidance on a wall of the bore is configured between the secondary cutting edge and a rear flank of the reaming element, characterized in that the support zone is smaller in area than the land and is spaced, by an intermediate section of the land, at a distance from the secondary cutting edge, the intermediate section is formed by a grooved recess between the secondary cutting edge and the support zone, the distance of the support zone from the secondary cutting edge, measured in a peripheral direction from an outer peripheral surface of the reaming tool in a rotational direction, is 0.005 to 0.05 times an outer pitch circle diameter of the main cutting edge and the width of the support zone, measured in the peripheral direction, is between 0.05 and 0.75 mm.
Dependencies are inferred from the claim text.