Loading patent…
AssigneeSandvik Intelectual Property AB
InventorsTobias JARVSTROM, Henrik IMRELL
Estimating the term…
A parting/grooving insert and a method of grinding a parting/grooving insert including rotating a plane grinding surface having a normal vector parallel to the axis of rotation and a tangential direction of rotation; providing a parting/grooving insert including a rake surface, a main clearance surface, and a main cutting edge formed between the rake and main clearance surfaces; orienting/positioning the insert relative to the grinding surface, such that the main clearance surface is parallel to the grinding surface, the normal vector of the main cutting edge being in the plane of the main clearance surface and with a vector component in the direction of rotation forming an angle to the tangential direction of rotation at the insert of at least 20 degrees from parallel orientation; and grinding the main clearance surface to provide grinding marks having an angle to the normal vector of the main cutting edge corresponding to the angle to the tangential direction of rotation.
A method of grinding a parting/grooving insert by rotating a grinding wheel including a plane grinding surface, having a normal vector parallel to the axis of rotation and a tangential direction of rotation in the grinding surface plane, comprising:
The method according to claim 0, wherein the angle to the tangential direction of rotation is at least 30 degrees from a parallel orientation.
The method according to claim 0, wherein the angle to the tangential direction of rotation is less than 70 degrees from a parallel orientation.
The method according to claim 0, wherein the angle to the tangential direction of rotation is less than 60 degrees from a parallel orientation.
The method according to claim 0, wherein the parting/grooving insert includes a left hand corner radius surface disposed between the main clearance surface and the left side clearance surface, and a right hand corner radius surface disposed between the main clearance surface and the right side clearance surface, and wherein the parting/grooving insert is gradually moved between the position of grinding the left side clearance surface and the main clearance surface thus grinding the left hand corner radius surface, and/or wherein the parting/grooving insert is gradually moved between the position of grinding the right side clearance surface and the main clearance surface thus grinding the right hand corner radius surface.
A parting/grooving insert comprising:
The parting/grooving insert according to claim 0, wherein the grinding marks have an orientation of at least 30 degrees to the normal vector of the main cutting edge.
The parting/grooving insert according to claim 0, wherein the grinding marks have an orientation of less than 70 degrees to the normal vector of the main cutting edge.
The parting/grooving insert according to claim 0, wherein the grinding marks have an orientation of less than 60 degrees to the normal vector of the main cutting edge.
The parting/grooving insert according to claim 0, further comprising a left and a right side clearance surface and wherein the cutting edge includes a left side cutting edge formed between the rake surface and the left side clearance surface, and a right side cutting edge formed between the rake surface and the right side clearance surface, and wherein the respective left and right side clearance surface each include grinding marks having an angle to the normal vector of at least 20 degrees.
The parting/grooving insert according to claim 0, wherein the left and right side clearance surfaces are formed as a shelf protruding from a respective left and right side of the insert.
The parting/grooving insert according to claim 0, wherein an extension of the shelf from the main clearance surface, and thus the left and right side clearance surface, is greatest close to the respective left and right side cutting edge and decreases with distance from the respective left and right side cutting edge.
The parting/grooving insert according to claim 0, wherein an angle between the main clearance surface and the left side clearance surface and main front clearance surface and the right side clearance surface respectively, is sharper than 90 degrees.
(canceled)
A slot milling disc having a centre axis, and comprising:
(canceled)
A parting/grooving insert made according to the method of claim 0.
Dependencies are inferred from the claim text.