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US 2009/0290945 A1Published application
Substrate plate for double-sided indexable cutting inserts
AssigneeWalter AG
InventorHans-Georg Carl
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AssigneeWalter AG
InventorHans-Georg Carl
Estimating the term…
The present invention relates to a substrate plate for a double-sided indexable cutting insert, which is to be fixed within a tool to be equipped with at least one cutting insert, where the tool has at least one seat for at least one indexable cutting insert, where the substrate plate has a plate-like fundamental shape with a round or polygonal outline and with a lower contact area, generally planar, which can be placed in contact with one area of the seat, and with an upper support area bearing the indexable cutting insert, where the contact area and support area have connection to one another via side walls defining the periphery of the substrate plate. The invention proposes, in order to provide a substrate plate and appropriate combinations composed of substrate plates and indexable cutting plates, and also to provide appropriate tools which ensure very precise seating of the indexable cutting plate and nevertheless also give better protection of the cutting edges on that side of the cutting insert facing towards the substrate plate, with respect to disadvantageous contact and damage via swarf impact, that the support area, has, at a distance from the side areas, a plateau arranged parallel to the contact area, and that the upper edges formed on the substrate plate at the transition between the side walls and the support area have a varying distance from the plane of the lower contact area.
A support plate for a double-sided indexable cutting insert which is to be fixed in a tool to be provided with at least one cutting insert, wherein the tool has at least one seat for at least one indexable cutting insert, wherein the support plate is of a plate-like basic shape of a round or polygonal outline and with a lower generally flat contact face which can be placed on a face of the seat, and an upper support face carrying the indexable cutting insert, wherein the contact face and the support face are connected together by side walls defining the periphery of the support plate, wherein the support face at a spacing from the side faces has a plateau arranged parallel to the contact face and the upper edges of the support plate, that are formed at the transition of the side walls to the support face, are at a varying spacing relative to the plane of the lower contact face.
A combination comprising a support plate and a double-sided indexable cutting insert, wherein the indexable cutting insert can be received and fixed in a seat of a tool and in that case the support plate is between the indexable cutting insert and a face of the seat, wherein the indexable cutting insert is to be fixed on the support plate in a seat and wherein the support plate is of a plate-like basic shape of a round or polygonal outline and with a lower generally flat contact face which can be placed on a face of the seat and an upper support face carrying the indexable cutting insert, wherein the contact face and the support face are connected together by side walls defining the periphery, and wherein the indexable cutting insert has a plateau which is disposed within the cutting edges and at a spacing therefrom and which is defined by one or more flat contact faces, wherein the upper edges of the support plate, that are formed by the transition from the side walls to the support face, and the cutting edges on the side of the indexable cutting insert, that is towards the support plate, are at a spacing of at most 0.5 mm from each other at least in the region beneath an active cutting edge and the regions adjoining same.
Dependencies are inferred from the claim text.