Method and tool for machining the surfaces of workpieces
AssigneeMaschinenfabrik Gehring Gesellschaft mit beschrankter Haftung & Co. Kommanditgesellschaft
InventorsUlrich Klink, Gerhard Sandhof
Life of this patent
Estimating the term…
Abstract
A method and tool for machining the surfaces of workpieces. The surface is finished by honing high pressure fluid jetting, and brushing. The tool used in this connection is provided with at least one tool element, such as a honing bar and/or a brush bar, and at least one spray or jetting mechanism.
Claims19
A method of machining the surfaces of workpieces, especially the bore surfaces of internal combustion engines, said method including the steps of honing with a honing tool via rotation in a predetermined direction of rotation, then high pressure spraying of fluid to eliminate metal nap as well as for a good cooling and lubricating effect as to the honing tool, and brushing a surface that is honed, carrying out said honing by rotating said honing tool in a first direction or rotation, and carrying out said high pressure spraying and said brushing in a second direction or rotation that is opposite to said first direction of rotation.
A method of machining the surfaces or workpieces, especially the bore surfaces of internal combustion engines, said method including the steps of honing with a honing tool, then high pressure spraying of fluid to eliminate metal nap as well as for a good cooling and lubricating effect as to the honing tool, and subsequently brushing a surface that is to be machined;
- and
- carrying out said spraying at the conclusion of said honing operation.
A method of machining for fine finishing honing a surface of a bore in a workpiece, especially a cylinder bore in a cylinder block of an internal combustion engine, said method including the steps of honing the bore with a honing tool driven in rotational and reciprocating movement, said honing tool having finishing honing stones provided therewith and including the steps of performing in combination with said fine finishing honing additionally a processing of the bore surface by high-pressure jetting of fluid by means of a jetting tool provided with nozzles to eliminate metal nap and by brushing of the bore surface with brushes under the same kinematic conditions as said honing stones moving in the rotational and reciprocating movement along the bore surface.
A method of machining the surfaces of workpieces, especially the bore surfaces of internal combustion engines, said method including the steps of honing with a honing tool, then high pressure spraying of fluid to eliminate metal nap as well as for a good cooling and lubricating effect as to the honing tool, and subsequently brushing a surface that is to be machined, and
- carrying out said high pressure spraying at about 100 to 700 bar.
Dependencies are inferred from the claim text.