Groover with peening flanks
AssigneeFord Motor Company
InventorsDavid Alan STEPHENSON, David Garrett COFFMAN
Life of this patent
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Abstract
According to one aspect of this disclosure, a grooving tool is provided. The grooving tool has a body with a plurality of recesses. Plural inserts assembled into each of the recesses. The recesses include a cutting edge for forming grooves in an engine cylinder wall when rotated in one rotational direction. The insert also includes a peening surface extending in the opposite rotational direction from the cutting edge for deforming the upper edges of the grooves when rotated in an opposite rotational direction.
Claims20
A grooving tool comprising:
- a body defining a plurality of recesses;
- and
- plural inserts each assembled into one of the recesses, the inserts including a cutting edge for forming grooves in an engine cylinder wall when rotated in one rotational direction and a peening surface extending in the opposite rotational direction from the cutting edge for deforming an upper edge of the grooves when rotated in the opposite rotational direction.
A method for machining a cylinder wall comprising:
- cutting a plurality of grooves within a cylinder with a cutting edge to a predetermined diameter by rotating a grooving tool in a first rotational direction and precessing the grooving tool along a first programmed path;
- and
- deforming the cylinder wall between the grooves with a peening surface of the grooving tool by rotating the grooving tool in a rotational direction opposite the first rotational direction and precessing the tool along a second programmed path.
A grooving tool comprising:
- a body;
- and
- one or more axial rows of cutting elements projecting outwardly from and situated radially to a circumference of the body, each cutting element of each row including a groove cutting element, a pocket cutting element and a peening surface, wherein the peening surface has a circumferentially convex face disposed between a cutting edge of a cutting element and the body.
Dependencies are inferred from the claim text.