Tool and method for mechanical roughening
AssigneeGehring Technologies GmbH + Co. KG
InventorsGerhard Flores, Erwin Baumgartner, Michael Rach
Life of this patent
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Abstract
A device which processes a cylinder bore of a combustion engine in one working stroke prepares the cylinder bore for a subsequent thermal coating.
Claims36
1-35. (canceled)
A device for generating a roughening profile on an inner surface of a bore, the device being designed as a combined chipping and forming tool, with a cutting tool, which is used for chipping with a geometrically defined blade for generating a pre-form of a roughening profile and with a tool, which is used for forming the pre-form of the roughening profile, wherein these tools can be fed in a radial direction, the device comprising:
- a first tool having at least one geometrically defined blade;
- a second tool disposed, in a feed direction, downstream of the first tool, wherein said second tool is a cutting tool;
- and
- a third tool disposed downstream of said second tool, said third tool structured for forming the pre-form of the roughening profile generated by said first and said second tools.
A tool or substrate having a roughened surface, wherein the roughened surface has bridges with a profile width and a profile depth, the bridges having a micro-roughness on upper sides thereof, wherein the micro-roughness is generated by diamond grits.
A method for roughening a cylindrical surface of a tool in a setting using a combination tool, the method comprising the steps of:
- a) fine boring with a first tool;
- b) form cutting at least one profile bridge using a second tool;
- and
- c) forming the at least one profile bridge using a third tool.
Dependencies are inferred from the claim text.