Method and tool for roughening a cylinder bore wall to be coated, and component for guiding a cylinder piston

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United States of America Patent

PATENT NO 11331763
APP PUB NO 20200290172A1
SERIAL NO

16061525

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A method for roughening a cylinder bore wall to be coated of a component, at least one groove, running around the central longitudinal axis, and at least one associated groove web, are generated such that the at least one groove web, in a radial direction directed toward the central longitudinal axis, forms first undercuts for a coating which is to be applied. Axial grooves running in the cylinder bore wall transversely to the at least one groove are generated such that the at least one groove web, in a peripheral direction about the central longitudinal axis, forms respective second undercuts for the coating which is to be applied. An adhesion of the coating which is to be applied, in the peripheral direction, is improved, so that stress cracks or detachments owing to a different thermal expansion of the component and of the coating which is to be applied are avoided.

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Patent Owner(s)

Patent OwnerAddress
STURM MASCHINEN- & ANLAGENBAU GMBH94330 SALCHING

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Birkner, Tobias Deizisau, DE 2 0
Kesting, Marc Straubing, DE 6 10
Kull, Oliver Neuhausen, DE 3 19

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