DE102007023297A1 - Drilling process for engine crankcase involves making preparation form in housing by preparation process and then implementing finishing process - Google Patents
Drilling process for engine crankcase involves making preparation form in housing by preparation process and then implementing finishing process Download PDFInfo
- Publication number
- DE102007023297A1 DE102007023297A1 DE200710023297 DE102007023297A DE102007023297A1 DE 102007023297 A1 DE102007023297 A1 DE 102007023297A1 DE 200710023297 DE200710023297 DE 200710023297 DE 102007023297 A DE102007023297 A DE 102007023297A DE 102007023297 A1 DE102007023297 A1 DE 102007023297A1
- Authority
- DE
- Germany
- Prior art keywords
- housing
- bore
- finishing
- cylindrical
- cylinder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B33/00—Honing machines or devices; Accessories therefor
- B24B33/02—Honing machines or devices; Accessories therefor designed for working internal surfaces of revolution, e.g. of cylindrical or conical shapes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Plasma & Fusion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren zur Herstellung einer Bohrung in einem Gehäuse, insbesondere einer Zylinderbohrung einer Hubkolbenmaschinen in einem Zylinderkurbelgehäuse, wobei die Bohrung in einem unbelasteten Zustand eine Ausgangsform und im Betriebszustand eine von der Ausgangsform abweichende Betriebsform aufweist.The The invention relates to a method for producing a bore in a housing, in particular a cylinder bore of a reciprocating engine in one Cylinder crankcase, wherein the bore in an unloaded state has an initial shape and in the operating state a deviating from the initial form of operation having.
In Verbrennungsmaschinen beeinflusst das Zusammenwirken von Kolbenringen und Zylinderwand die Ölemissionen in den Brennraum. Zylinderverzüge stören die Abdicht- und Ölabstreifwirkung der Kolbenringe und führen zu einer erhöhten Ölfilmdicke und somit zu Ölemission in den Brennraum. Die Ursache solcher Zylinderverzüge liegt insbesondere in mechanischen Deformationen durch Verspannungen (z.B. aufgrund der Verschraubung des Zylinderkopfs), thermischen Deformationen durch ungleichmäßigen Wärmeeintrag (z.B. aufgrund des Verbrennungsvorgangs, Reibung der Kurbelwelle, ungleichmäßige Kühlung durch konstruktive Restriktionen) und dynamische Deformationen durch den Verbrennungsdruck.In Combustion engines affect the interaction of piston rings and cylinder wall the oil emissions in the combustion chamber. cylinder distortion to disturb the sealing and Ölabstreifwirkung the Piston rings and lead to an increased oil film thickness and thus to oil emission in the combustion chamber. The cause of such cylinder distortions is especially in mechanical deformations due to tension (e.g. due to the bolting of the cylinder head), thermal deformations due to uneven heat input (e.g., due to the combustion process, friction of the crankshaft, uneven cooling due to constructive restrictions) and dynamic deformations by the Combustion pressure.
Um
diesen Effekten zu begegnen, besteht ein großer Bedarf an einem Verfahren
zur Erzeugung einer unrunden Ausgangsform der Zylinderbohrung im
unbelasteten Zustand, die in einer solchen Weise gestaltet ist,
dass die Zylinderbohrung im Betriebszustand eine von der Ausgangsform
abweichende, möglichst
zylinderförmige
Betriebsform aufweist. Ein Verfahren zur Herstellung einer solchen
unrunden Ausgangsform einer Zylinderbohrung ist beispielsweise aus
der
Der Erfindung liegt die Aufgabe zugrunde, ein derart bekanntes Verfahren vorteilhaft weiterzubilden.Of the Invention is based on the object, such a known method to develop advantageous.
Diese Aufgabe wird mit einem Verfahren mit den Merkmalen der Ansprüche 1 und 2 gelöst.These The object is achieved by a method having the features of claims 1 and 2 solved.
Danach
wird zur Herstellung der Bohrung ein zweistufiges Verfahren mit
einem Vorbearbeitungs- und einem Feinbearbeitungsschritt eingesetzt.
Dem Verfahren liegt die Erkenntnis zugrunde, dass oftmals die zu
erzeugenden unrunde Ausgangsform so stark von der Zylinderform abweicht,
dass die in der
Eine den Betriebsbelastungen angepasste, von der Zylindersymmetrie abweichende („unrunde") Bearbeitung der Bohrung hat den Vorteil, dass dadurch die Zylinderdeformation unter Betriebsbedingungen deutlich reduziert werden kann, was von großer Bedeutung für die Absenkung des Ölverbrauchs und eine Verbesserung der Kolbenringabstimmung ist.A adapted to the operating loads, deviating from the cylindric symmetry ("Non - round") editing of the Bore has the advantage that thereby the cylinder deformation under Operating conditions can be significantly reduced, which is of great importance for the Reduction of oil consumption and an improvement of the piston ring tuning is.
Vor
der Feinbearbeitung kann eine Gleitschicht auf die Vorbearbeitungsform
aufgebracht werden. Die Gleitschicht kann insbesondere mit konstanter
Schichtdicke aufgebracht werden. Dies hat den Vorteil, dass eine
sich nach der Feinbearbeitung ergebende Endschicht ebenfalls eine
weitgehend konstante Schichtdicke aufweist, obwohl die Ausgangsform
nicht zylindrisch ist. Die Gleitschicht kann insbesondere mittels
eines thermischen Spritzverfahrens aufgebracht werden beziehungsweise
eine derartige Zusammensetzung aufweisen, wie es beispielsweise
aus der
Vorzugsweise ist vorgesehen, dass die Vorbearbeitungsform um die Gleitschichtstärke größer und/oder um ein Feinbearbeitungsaufmaß kleiner als die Ausgangsform ist. Je nach vorzusehender Endstärke der Schicht kann die Vorbearbeitungsform insgesamt größer oder kleiner als die Ausgangsform sein.Preferably is provided that the Vorbearbeitungsform to the sliding layer thickness larger and / or smaller by a finishing allowance as the initial form is. Depending on the final strength to be provided Layer, the pre-processing can be larger or total be smaller than the initial shape.
Das Vorbearbeitungsverfahren beinhaltet vorzugsweise eine Schruppbearbeitung. Das Feinbearbeitungsverfahren umfasst vorzugsweise eine Honbearbeitung.The Vorbearbeitungsverfahren preferably includes a roughing. The finishing process preferably includes honing.
Zur unrunden Vorbearbeitung kann insbesondere ein adaptives Werkzeug, ein interpolierendes Werkzeug, ein hydraulisches Räumwerkzeug und/oder ein Zirkularsausspindelwerkzeug Verwendung finden.to non-circular preprocessing can be particularly an adaptive tool, an interpolating tool, a hydraulic broach and / or a circular Ausspindelwerkzeug find use.
Weitere Einzelheiten und vorteilhafte Ausgestaltungen der Erfindung sind der nachfolgenden Beschreibung zu entnehmen, die das in der Figuren dargestellte Ausführungsbeispiel näher erläutert und beschreibt. Dabei zeigen:Further Details and advantageous embodiments of the invention are to take the following description, which in the figures illustrated embodiment explained in more detail and describes. Showing:
Das
Zylinderkurbelgehäuse
Ein
zugehöriger
Verfahrensablauf
In
einem ersten Verfahrensschritt
In
einem zweiten Verfahrensschritt
In
einem weiteren Verfahrensschritt
Um
eine gute Haftung der Gleitschicht
Im
Verfahrensschritt
Gemäß dem erfindungsgemäßen Verfahren erhält man folglich
eine nicht zylindrische Ausgangsform
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200710023297 DE102007023297A1 (en) | 2007-05-16 | 2007-05-16 | Drilling process for engine crankcase involves making preparation form in housing by preparation process and then implementing finishing process |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200710023297 DE102007023297A1 (en) | 2007-05-16 | 2007-05-16 | Drilling process for engine crankcase involves making preparation form in housing by preparation process and then implementing finishing process |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102007023297A1 true DE102007023297A1 (en) | 2008-02-14 |
Family
ID=38922244
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200710023297 Withdrawn DE102007023297A1 (en) | 2007-05-16 | 2007-05-16 | Drilling process for engine crankcase involves making preparation form in housing by preparation process and then implementing finishing process |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102007023297A1 (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009024227B4 (en) * | 2009-06-08 | 2013-07-04 | Daimler Ag | cylinder crankcase |
DE102012201342A1 (en) * | 2012-01-31 | 2013-08-01 | Bayerische Motoren Werke Aktiengesellschaft | Method for producing inner surface of cylinder bore with local different roughness structures of reciprocating piston-internal combustion engine, involves fine drilling or pre-honing hole inner surface, and completely honing inner surface |
DE102013221375A1 (en) | 2013-10-22 | 2015-04-23 | Ford Global Technologies, Llc | Method for producing a coated bore surface, in particular a cylinder bore |
DE102014221363A1 (en) | 2013-10-22 | 2015-04-23 | Ford Global Technologies, Llc | Method for producing a coated cylinder bore of an internal combustion engine |
DE102013223011A1 (en) | 2013-11-12 | 2015-05-13 | Ford-Werke Gmbh | Process for producing a coated surface of a tribological system |
EP2796697A4 (en) * | 2011-12-22 | 2015-06-17 | Nissan Motor | Method for manufacturing cylinder block, and cylinder block |
DE102014202135A1 (en) | 2014-02-06 | 2015-08-06 | Ford Global Technologies, Llc | Process for coating a bore and cylinder block of an internal combustion engine |
DE102014202134A1 (en) | 2014-02-06 | 2015-08-06 | Ford Global Technologies, Llc | Process for coating a bore and cylinder block of an internal combustion engine |
DE102014016849A1 (en) * | 2014-11-13 | 2016-05-19 | Karlheinz Hahn | Process for machining cylinder surfaces |
DE102017206722A1 (en) | 2016-04-26 | 2017-10-26 | Ford Global Technologies, Llc | Process for producing a coated surface of a tribological system |
-
2007
- 2007-05-16 DE DE200710023297 patent/DE102007023297A1/en not_active Withdrawn
Cited By (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009024227B4 (en) * | 2009-06-08 | 2013-07-04 | Daimler Ag | cylinder crankcase |
EP2796697A4 (en) * | 2011-12-22 | 2015-06-17 | Nissan Motor | Method for manufacturing cylinder block, and cylinder block |
CN103890361B (en) * | 2011-12-22 | 2017-04-05 | 日产自动车株式会社 | The manufacture method of cylinder block |
US9494103B2 (en) | 2011-12-22 | 2016-11-15 | Nissan Motor Co., Ltd. | Cylinder block manufacturing method and cylinder block |
DE102012201342A1 (en) * | 2012-01-31 | 2013-08-01 | Bayerische Motoren Werke Aktiengesellschaft | Method for producing inner surface of cylinder bore with local different roughness structures of reciprocating piston-internal combustion engine, involves fine drilling or pre-honing hole inner surface, and completely honing inner surface |
DE102013221375A1 (en) | 2013-10-22 | 2015-04-23 | Ford Global Technologies, Llc | Method for producing a coated bore surface, in particular a cylinder bore |
DE102014221363A1 (en) | 2013-10-22 | 2015-04-23 | Ford Global Technologies, Llc | Method for producing a coated cylinder bore of an internal combustion engine |
RU2674362C2 (en) * | 2013-10-22 | 2018-12-07 | Форд Глобал Технолоджис, ЛЛК | Method for processing cylinder bore of internal combustion engine |
DE102013223011A1 (en) | 2013-11-12 | 2015-05-13 | Ford-Werke Gmbh | Process for producing a coated surface of a tribological system |
WO2015070833A1 (en) | 2013-11-12 | 2015-05-21 | Ford Werke Gmbh | Method for producing a coated surface of a tribological system |
EP2905455A3 (en) * | 2014-02-06 | 2015-11-18 | Ford Global Technologies, LLC | Method for coating a bore and cylinder block of an internal combustion engine |
EP2905455A2 (en) | 2014-02-06 | 2015-08-12 | Ford Global Technologies, LLC | Method for coating a bore and cylinder block of an internal combustion engine |
DE102014202134A1 (en) | 2014-02-06 | 2015-08-06 | Ford Global Technologies, Llc | Process for coating a bore and cylinder block of an internal combustion engine |
US9759154B2 (en) | 2014-02-06 | 2017-09-12 | Ford Global Technologies, Llc | Method for coating a bore and cylinder block of an internal combustion engine |
DE102014202135A1 (en) | 2014-02-06 | 2015-08-06 | Ford Global Technologies, Llc | Process for coating a bore and cylinder block of an internal combustion engine |
DE102014202135B4 (en) | 2014-02-06 | 2023-12-14 | Ford Global Technologies, Llc | Method for coating a bore, cylinder lining and cylinder block of an internal combustion engine |
DE102014016849A1 (en) * | 2014-11-13 | 2016-05-19 | Karlheinz Hahn | Process for machining cylinder surfaces |
DE102017206722A1 (en) | 2016-04-26 | 2017-10-26 | Ford Global Technologies, Llc | Process for producing a coated surface of a tribological system |
US11118282B2 (en) | 2016-04-26 | 2021-09-14 | Ford Global Technologies, Llc | Method and device for producing a wear-resistant surface on a workpiece |
DE102017206722B4 (en) | 2016-04-26 | 2024-07-11 | Ford Global Technologies, Llc | Method and device for producing a coated surface of a tribological system |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OAV | Applicant agreed to the publication of the unexamined application as to paragraph 31 lit. 2 z1 | ||
R005 | Application deemed withdrawn due to failure to request examination |
Effective date: 20140517 |