EP1321229B1 - Method for forming a bore - Google Patents
Method for forming a bore Download PDFInfo
- Publication number
- EP1321229B1 EP1321229B1 EP01130399A EP01130399A EP1321229B1 EP 1321229 B1 EP1321229 B1 EP 1321229B1 EP 01130399 A EP01130399 A EP 01130399A EP 01130399 A EP01130399 A EP 01130399A EP 1321229 B1 EP1321229 B1 EP 1321229B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- deformation
- bore
- determined
- honing
- starting form
- 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.)
- Expired - Lifetime
Links
Images
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
- B24B33/08—Honing tools
- B24B33/088—Honing tools for holes having a shape other than cylindrical
-
- 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
Definitions
- the invention relates to a method of the type specified in the preamble of claim 1.
- the DE-A-40 07 121 describes the honing of oval holes, as they are provided for example in cylinder blocks, in view of the thin webs ("fire bars") between adjacent holes also in the direction perpendicular to thinner walls and thus achieve a more uniform heat distribution. Instructions for solving the above problem do not arise from this.
- the invention has for its object to provide a method of the generic type, which allows the production of holes with an ideal operating condition under deformation form with little effort. Furthermore, the object of the invention is to provide a honing machine for carrying out the method.
- the method provides to determine the deformation in the operating state for a particular hole and to determine from the deformation the initial shape, ie the shape to be produced during machining, which corresponds to the shape before installation.
- the determination of the deformation and the initial shape must be carried out only once per bore geometry and operating state. In particular, for the production of series components thereby reduces the cost compared to the distortion and heating of each hole during processing considerably. Because the deformation state does not have to be present on the machine itself, this can be determined much more accurate, so that the production of holes, which actually have a predetermined geometry in the operating state, is possible.
- the desired shape i. the mold is cylindrical under operating conditions.
- the initial shape is cylindrical.
- the initial shape is determined theoretically.
- the deformation is expediently determined experimentally.
- the deformation is determined by static compression and measuring the geometry obtained.
- the deformation can also be determined theoretically, in particular by computer simulation.
- the initial shape is produced by temporally and spatially varied machining parameters.
- the initial shape can be produced by methods with a defined cutting edge, grinding, spark erosion or honing.
- the machining process is in particular a honing process, the tool being a honing tool which is arranged on a spindle and which comprises at least one honing stone which is pressed against the wall of the bore with a feed pressure.
- the delivery pressure of at least one honing stone during the processing time is varied.
- the delivery pressure is varied in particular as a function of the rotational position of the spindle.
- different bore inner radii can be achieved in the circumferential direction of the bore.
- the delivery pressure is varied depending on the stroke position of the spindle, resulting in different bore inner radii seen in the axial direction of the bore.
- the initial shape 2 is the shape of the hole 1 before installation.
- the initial shape 2 is largely cylindrical in an upper region 5 and elliptical in a lower region 7.
- the representation of the deviation of the elliptical from the cylindrical shape is in the Fig. 1 and 2 not to scale, but shown greatly enlarged. In fact, the deviation is in the range of about 8 to 60 microns.
- the central region 6 represents a transition region from the cylindrical cross-sectional shape 8 to the elliptical cross-sectional shape 9.
- the cylindrical cross-sectional shape 8 is in Fig. 3 illustrated and the elliptical cross-sectional shape 9 in Fig. 4 ,
- the deformation of the desired shape 3 is determined in the operating state.
- the deformation can be determined experimentally by static distortion.
- the hole is machined by honing. The hole is then exposed to the stresses that occur during operation.
- the cylinder bore to be braced by the cylinder head, wherein the expansion screws used for fixing are tightened with the intended operating torques using the original seals.
- the component can be heated to operating temperature and / or pressure can be applied with pressures prevailing in the operating state.
- the resulting form softening is determined by form test measurements.
- the deformation can also be determined by the dynamic measurement of the change in shape during operation. Dynamic measurement is performed on cylinder bores, in particular during firing.
- the deformation can also be determined theoretically, in particular by a computer simulation. The computer simulation simulates the deformation during the fired operation with all detectable influencing variables.
- the method by which the deformation is determined is selected depending on the required accuracy and the effort required for the determination.
- the initial shape 2 is determined theoretically.
- the initial shape 2 is then produced by means of a machining process, in particular by means of a honing process.
- the honing machine for machining the hole comprises one to four honing stones.
- the delivery pressure with which each honing stone is pressed against the wall of the bore 1 is separate for each honing stone controllable.
- the honing tool performs an oscillating movement in the direction of the axis 4 of the bore 1 and a rotational movement about the axis 4.
- To edit the upper portion 5 of the hole 1 all honing stones are pressed with the same feed pressure against the wall of the hole 1.
- the delivery pressure is not varied over the processing time. This creates the in Fig.
- the feed pressure is increased to the honing stones in the direction of the X-axis and reduced in the direction of the Y-axis.
- the feed pressure is additionally controlled in dependence on the stroke position of the spindle on which the honing tool is fixed. Since the bore geometry changes continuously in the middle region 6, honing stones with very little axial extension are used. To achieve greater accuracy, the tool has a lower and / or an upper guide.
- the in Fig. 5 represented contour represent the initial shape and resulting from the load bore shape in the Fig. 1 and 2 have shown contour, which then represents the desired shape.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Description
Die Erfindung betrifft ein Verfahren der im Oberbegriff des Anspruchs 1 angegebenen Gattung.The invention relates to a method of the type specified in the preamble of claim 1.
Insbesondere bei Zylinderbohrungen von Hubkolbenmaschinen wie Verbrennungsmotoren oder Kompressoren wird versucht, durch ein gleichmäßiges und geringes Spiel zwischen Kolben und Zylinder gute tribologische Bedingungen zu erhalten. Da sich die Zylinderbohrung aufgrund der Belastungen wie Spannungen und Temperatur im Betriebszustand verformt, weicht die Form einer in unbelastetem Zustand zylindrischen Bohrung im Betrieb von der zylindrischen Form ab.Particularly in cylinder bores of reciprocating engines such as internal combustion engines or compressors is trying to obtain good tribological conditions by a uniform and low clearance between the piston and cylinder. Since the cylinder bore deforms due to the stresses such as stresses and temperature in the operating state, the shape of a cylindrical bore in the unloaded state deviates in operation from the cylindrical shape.
Um im Betriebszustand eine zylindrische Bohrung zu erhalten, wird in der Druckschrift
Die
Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren der gattungsgemäßen Art zu schaffen, das die Herstellung von Bohrungen mit einer im Betriebszustand unter Verformung idealen Form mit geringem Aufwand ermöglicht. Des Weiteren besteht die Aufgabe der Erfindung darin, eine Honmaschine zur Durchführung des Verfahrens zu schaffen.The invention has for its object to provide a method of the generic type, which allows the production of holes with an ideal operating condition under deformation form with little effort. Furthermore, the object of the invention is to provide a honing machine for carrying out the method.
Diese Aufgabe wird durch ein Verfahren mit den Merkmalen des Anspruchs 1 gelöst.This object is achieved by a method having the features of claim 1.
Das Verfahren sieht vor, für eine bestimmte Bohrung die Verformung im Betriebszustand zu ermitteln und aus der Verformung die Ausgangsform, d. h. die bei der Bearbeitung herzustellende Form, die der Form vor dem Einbau entspricht, zu ermitteln. Die Ermittlung der Verformung und der Ausgangsform muss je Bohrungsgeometrie und Betriebszustand lediglich einmal durchgeführt werden. Insbesondere für die Herstellung von Serienbauteilen sinkt dadurch der Aufwand gegenüber dem Verspannen und Erhitzen jeder Bohrung bei der Bearbeitung erheblich. Da der Verformungszustand nicht an der Bearbeitungsmaschine selbst vorliegen muß, kann dieser wesentlich genauer ermittelt werden, so daß die Fertigung von Bohrungen, die im Betriebszustand tatsächlich eine vorgegebene Geometrie haben, ermöglicht ist.The method provides to determine the deformation in the operating state for a particular hole and to determine from the deformation the initial shape, ie the shape to be produced during machining, which corresponds to the shape before installation. The determination of the deformation and the initial shape must be carried out only once per bore geometry and operating state. In particular, for the production of series components thereby reduces the cost compared to the distortion and heating of each hole during processing considerably. Because the deformation state does not have to be present on the machine itself, this can be determined much more accurate, so that the production of holes, which actually have a predetermined geometry in the operating state, is possible.
In Ausgestaltung der Erfindung ist vorgesehen, daß die Sollform, d.h. die Form unter Betriebsbedingungen, zylindrisch ist. Eine andere Ausgestaltungsvariante sieht vor, daß die Ausgangsform zylindrisch ist. Insbesondere bei zylindrischer Sollform ist vorgesehen, daß die Ausgangsform theoretisch ermittelt wird.In an embodiment of the invention it is provided that the desired shape, i. the mold is cylindrical under operating conditions. Another embodiment variant provides that the initial shape is cylindrical. In particular, in the case of a cylindrical nominal shape, it is provided that the initial shape is determined theoretically.
Zweckmäßig wird die Verformung experimentell ermittelt. Insbesondere wird die Verformung durch statisches Verpressen und Vermessen der erzielten Geometrie ermittelt. Um besonders genaue Verformungsdaten zu erhalten, kann es jedoch vorteilhaft sein, daß die Verformung durch dynamisches Vermessen im Betrieb ermittelt wird. Die Verformung kann auch theoretisch ermittelt werden, insbesondere durch Rechnersimulation.The deformation is expediently determined experimentally. In particular, the deformation is determined by static compression and measuring the geometry obtained. In order to obtain particularly accurate deformation data, however, it may be advantageous for the deformation to be determined by dynamic measurement during operation. The deformation can also be determined theoretically, in particular by computer simulation.
Es ist vorgesehen, daß die Ausgangsform durch zeitlich und örtlich variierte Bearbeitungsparameter hergestellt wird. Grundsätzlich läßt sich die Ausgangsform durch Verfahren mit definierter Schneide, Schleifen, Funkenerosion oder Honen herstellen. Das Bearbeitungsverfahren ist jedoch insbesondere ein Honverfahren, wobei das Werkzeug ein Honwerkzeug ist, das an einer Spindel angeordnet ist und das mindestens einen Honstein umfaßt, der mit einem Zustelldruck an die Wandung der Bohrung gedrückt wird. Es ist vorgesehen, daß der Zustelldruck mindestens eines Honsteins während der Bearbeitungszeit variiert wird. Der Zustelldruck wird insbesondere in Abhängigkeit der Drehposition der Spindel variiert. Hierdurch können in Umfangsrichtung der Bohrung unterschiedliche Bohrungsinnenradien erzielt werden. Zweckmäßig wird der Zustelldruck in Abhängigkeit der Hubposition der Spindel variiert, wodurch sich in Achsrichtung der Bohrung gesehen unterschiedliche Bohrungsinnenradien ergeben.It is envisaged that the initial shape is produced by temporally and spatially varied machining parameters. In principle, the initial shape can be produced by methods with a defined cutting edge, grinding, spark erosion or honing. However, the machining process is in particular a honing process, the tool being a honing tool which is arranged on a spindle and which comprises at least one honing stone which is pressed against the wall of the bore with a feed pressure. It is envisaged that the delivery pressure of at least one honing stone during the processing time is varied. The delivery pressure is varied in particular as a function of the rotational position of the spindle. As a result, different bore inner radii can be achieved in the circumferential direction of the bore. Appropriately, the delivery pressure is varied depending on the stroke position of the spindle, resulting in different bore inner radii seen in the axial direction of the bore.
Ein Ausführungsbeispiel der Erfindung wird im folgenden anhand der Zeichnung erläutert. Es zeigen:
- Fig. 1
- einen Schnitt durch eine Bohrung mit Ausgangsform,
- Fig. 2
- einen Schnitt entlang der Linie II-II in
Fig. 1 , - Fig. 3
- eine schematische Darstellung eines Schnitts entlang der Linie III-III oder III'-III' in
Fig. 1 , - Fig. 4
- eine schematische Darstellung eines Schnitts entlang der Linie IV-IV oder IV'-IV' in
Fig. 1 , - Fig. 5
- einen Schnitt durch eine Bohrung in Sollform (Betriebsform).
- Fig. 1
- a section through a hole with initial shape,
- Fig. 2
- a section along the line II-II in
Fig. 1 . - Fig. 3
- a schematic representation of a section along the line III-III or III'-III 'in
Fig. 1 . - Fig. 4
- a schematic representation of a section along the line IV-IV or IV'-IV 'in
Fig. 1 . - Fig. 5
- a section through a hole in nominal form (operating form).
Zur Herstellung einer Bohrung 1 mit der in
Zur Ermittlung der Ausgangsform 2 wird die Verformung der Sollform 3 im Betriebszustand ermittelt. Die Verformung kann experimentell durch statisches Verspannen ermittelt werden. Hierzu wird eine Bohrung, insbesondere die Zylinderbohrung eines Motorblocks, in Sollform 3, insbesondere in zylindrischer Form, hergestellt. Zweckmäßig wird die Bohrung durch Honen bearbeitet. Die Bohrung wird dann den Belastungen ausgesetzt, die im Betriebszustand auftreten. Hierzu kann beispielsweise die Zylinderbohrung durch den Zylinderkopf verspannt werden, wobei die zur Fixierung verwendeten Dehnschrauben mit den für den Betrieb vorgesehenen Drehmomenten unter Verwendung der Originaldichtungen angezogen werden. Je nach Betriebszustand und erforderlicher Genauigkeit kann zusätzlich oder alternativ dazu das Bauteil auf Betriebstemperatur aufgeheizt werden und/oder eine Druckbeaufschlagung mit im Betriebszustand vorherrschenden Drücken erfolgen. Die so entstandenen Formerweichungen werden durch Formtestermessungen ermittelt.To determine the
Die Verformung kann jedoch auch durch die dynamische Vermessung der Formänderung im Betriebszustand ermittelt werden. Die dynamische Vermessung wird bei Zylinderbohrungen insbesondere während der Befeuerung vorgenommen. Die Verformung kann auch theoretisch, insbesondere durch eine Rechnersimulation ermittelt werden. Die Rechnersimulation simuliert die Verformung während des befeuerten Betriebs mit allen erfassbaren Einflussgrößen. Zweckmäßig wird das Verfahren, mit dem die Verformung ermittelt wird, in Abhängigkeit der benötigten Genauigkeit und des für die Ermittlung notwendigen Aufwands ausgewählt.However, the deformation can also be determined by the dynamic measurement of the change in shape during operation. Dynamic measurement is performed on cylinder bores, in particular during firing. The deformation can also be determined theoretically, in particular by a computer simulation. The computer simulation simulates the deformation during the fired operation with all detectable influencing variables. Suitably, the method by which the deformation is determined is selected depending on the required accuracy and the effort required for the determination.
Aus der ermittelten Verformung und der Sollform 3 wird die Ausgangsform 2 theoretisch ermittelt. Die Ausgangsform 2 wird dann mittels eines Bearbeitungsverfahrens, insbesondere mittels eines Honverfahrens, hergestellt. Die Honmaschine zur Bearbeitung der Bohrung umfaßt ein bis vier Honsteine. Der Zustelldruck, mit dem jeder Honstein an die Wandung der Bohrung 1 gedrückt wird, ist für jeden Honstein separat steuerbar. Das Honwerkzeug führt eine oszillierende Bewegung in Richtung der Achse 4 der Bohrung 1 und eine Drehbewegung um die Achse 4 aus. Zur Bearbeitung des oberen Bereichs 5 der Bohrung 1 werden alle Honsteine mit dem gleichen Zustelldruck gegen die Wandung der Bohrung 1 gedrückt. Der Zustelldruck wird über die Bearbeitungsdauer nicht variiert. Dadurch entsteht die in
Werden Bohrungen benötigt, die eine von der zylindrischen Form abweichende Innenkontur aufweisen, kann die in
Grundsätzlich können auch andere Fertigungsverfahren, die die Herstellung einer von der Zylinderform abweichenden Innenkontur erlauben, bei der Herstellung einer Bohrung mit dem erfindungsgemäßen Verfahren zur Anwendung kommen.In principle, other production methods which permit the production of an inner contour deviating from the cylindrical shape can also be used in the production of a bore using the method according to the invention.
Claims (13)
- Method for creating a bore, in particular the cylinder bore of a reciprocating piston engine, wherein, in the unloaded condition, the bore (1) has a starting form (2) and, in the operating condition, a target form (3) which differs from the starting form (2), characterised in that the deformation of a bore (1) to the target form (3) in the operating condition is determined, the starting form (2) is determined by means of the target form (3) and the deformation, and the bore (1) is brought into the starting form (2) with a processing method.
- Method according to claim 1, characterised in that the target form (3) or the starting form (2) is cylindrical.
- Method according to claim 1 or 2, characterised in that the starting form (2) is determined theoretically.
- Method according to one of the claims 1 to 3, characterised in that the deformation is determined experimentally.
- Method according to claim 4, characterised in that the deformation is determined by means of static pressing and measurement of the geometry obtained.
- Method according to claim 4, characterised in that the deformation takes place by means of heating to the operating temperature.
- Method according to claim 4, characterised in that the deformation is determined by dynamic measurement in operation.
- Method according to one of the claims 1 to 3, characterised in that the deformation is determined theoretically, in particular by computer simulation.
- Method according to one of the claims 1 to 8, characterised in that the starting form (2) is created by processing parameters which are varied temporally and spatially.
- Method according to one of the claims 1 to 9, characterised in that the processing method is a honing process wherein the tool is a honing tool which is arranged on a spindle and which comprises at least one honing stone which is pressed with a feed pressure against the wall of the bore (1).
- Method according to claim 10, characterised in that the feed pressure of at least one honing stone is varied during the processing time.
- Method according to claim 11, characterised in that the feed pressure is varied depending on the rotary position of the spindle.
- Method according to claim 11 or 12, characterised in that the feed pressure is varied depending on the stroke position of the spindle.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE50114827.2T DE50114827C5 (en) | 2001-12-20 | 2001-12-20 | Method of making a bore |
EP01130399A EP1321229B1 (en) | 2001-12-20 | 2001-12-20 | Method for forming a bore |
JP2002364233A JP2003200340A (en) | 2001-12-20 | 2002-12-16 | Forming method of bore and honing machine for implementing the method |
US10/248,087 US20030120374A1 (en) | 2001-12-20 | 2002-12-17 | Method for Producing a Bore |
US10/711,138 US6973367B2 (en) | 2001-12-20 | 2004-08-27 | Method for producing a bore |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP01130399A EP1321229B1 (en) | 2001-12-20 | 2001-12-20 | Method for forming a bore |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1321229A1 EP1321229A1 (en) | 2003-06-25 |
EP1321229B1 true EP1321229B1 (en) | 2009-04-08 |
Family
ID=8179617
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01130399A Expired - Lifetime EP1321229B1 (en) | 2001-12-20 | 2001-12-20 | Method for forming a bore |
Country Status (4)
Country | Link |
---|---|
US (1) | US20030120374A1 (en) |
EP (1) | EP1321229B1 (en) |
JP (1) | JP2003200340A (en) |
DE (1) | DE50114827C5 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014221363A1 (en) | 2013-10-22 | 2015-04-23 | Ford Global Technologies, Llc | Method for producing a coated cylinder bore of an internal combustion engine |
DE102013221375A1 (en) | 2013-10-22 | 2015-04-23 | Ford Global Technologies, Llc | Method for producing a coated bore surface, in particular a cylinder bore |
Families Citing this family (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2277661B1 (en) | 2005-11-25 | 2012-12-26 | Nagel Maschinen- und Werkzeugfabrik GmbH | Method for honing bores and honing tool therefor |
GB2450445B (en) | 2006-03-13 | 2011-10-26 | Honda Motor Co Ltd | Tool head,machine tool and boring method of bore of cylinder block using the machine tool |
DE102006062665A1 (en) * | 2006-12-29 | 2008-07-03 | Gehring Gmbh & Co. Kg | Bore e.g. cylinder bore, processing method for reciprocating piston engine, involves determining deviations of initial shape of bore from target shape, determining correct data based on deviation, and determining parameters based on data |
DE102007024569A1 (en) | 2007-05-25 | 2008-11-27 | Daimler Ag | Method for manufacturing boreholes in housings, involves shifting reference housing in operating condition and design form corresponding to operating form of borehole is manufactured in operating condition of reference housing |
DE102007031589A1 (en) | 2007-07-06 | 2009-01-08 | Daimler Ag | Slug producing method for internal combustion engine, involves utilizing cutting tool which is arranged rotatably and/or adjustably on hollow cylinder that is adjusted coaxially to bore and arranged in axial direction of bore |
DE102007038123B4 (en) | 2007-08-04 | 2010-06-10 | Gehring Technologies Gmbh | Machine for producing non-cylindrical bore surfaces |
DE102007063567A1 (en) | 2007-12-31 | 2009-07-09 | Daimler Ag | Non-cylindrical drilling surface producing method for use during processing of cylindrical piston bore in cylinder block of internal combustion engine, involves performing position honing and uniformly smoothening surface |
DE102008064592B4 (en) | 2008-12-30 | 2014-08-28 | Gehring Technologies Gmbh | Device for producing a non-cylindrical inner surface of a bore |
DE102009007023A1 (en) | 2009-01-31 | 2010-08-05 | Daimler Ag | Boreholes i.e. cylinder boreholes for reciprocating piston engine, designing and producing method for use in e.g. passenger car, involves receiving cylinder contact surface by operational form based on preset mechanical and/or thermal load |
DE102009007439A1 (en) | 2009-02-04 | 2009-10-15 | Daimler Ag | Machine tool e.g. hone, controlling method for machining surface in cylindrical barrel of internal-combustion engine, involves determining final control parameter set for predetermined final geometry using transfer function |
DE102009010790A1 (en) | 2009-02-26 | 2010-09-02 | Daimler Ag | Cylinder opening of a lifting piston engine comprises a cylinder face having recess patterns |
DE102009010791B4 (en) | 2009-02-26 | 2019-07-18 | Daimler Ag | Cylinder bore of a reciprocating engine |
DE102009024227B4 (en) * | 2009-06-08 | 2013-07-04 | Daimler Ag | cylinder crankcase |
DE102009051258A1 (en) | 2009-10-29 | 2010-06-17 | Daimler Ag | Cylindrical bearing borehole production method for reciprocating piston engine of passenger car, involves producing asymmetrical initial mold of borehole such that borehole exhibits symmetrical operating mold deviated from initial mold |
DE102009059131A1 (en) | 2009-12-19 | 2010-08-12 | Daimler Ag | Method for machining i.e. honing, of cylindrical path of reciprocating internal combustion engine, involves determining deviation of initial-geometry of position from reference-geometry of position according to processing steps |
WO2011152216A1 (en) * | 2010-06-01 | 2011-12-08 | 本田技研工業株式会社 | Cylinder block and method of machining same |
DE102010052271B4 (en) | 2010-11-23 | 2019-05-16 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Honing tool and method for honing the inner surface of a bore in a workpiece |
CN103890361B (en) * | 2011-12-22 | 2017-04-05 | 日产自动车株式会社 | The manufacture method of cylinder block |
DE102013204714B4 (en) | 2013-03-18 | 2024-06-06 | Elgan-Diamantwerkzeuge Gmbh & Co. Kg | Honing process and honing tool |
DE102014225164B4 (en) * | 2014-12-08 | 2017-10-12 | Elgan-Diamantwerkzeuge Gmbh & Co. Kg | Finishing method for producing a rotationally symmetrical bore with an axial contour |
KR102060873B1 (en) * | 2015-05-26 | 2019-12-30 | 게링 테크놀로지스 게엠베하 | Method for manufacturing rotationally symmetric non-cylindrical bores using a honing tool |
DE102015017348B4 (en) | 2015-05-26 | 2024-07-11 | Gehring Technologies Gmbh + Co. Kg | Method for the conformation of a cylindrical bore and process chain for the shaping of cylindrical bores |
DE102015209609B4 (en) * | 2015-05-26 | 2024-05-16 | Gehring Technologies Gmbh + Co. Kg | Method for the conformation of a cylindrical bore and process chain for the shaping of cylindrical bores |
DE102016201963A1 (en) * | 2016-02-10 | 2017-08-10 | Bayerische Motoren Werke Aktiengesellschaft | Engine block of an internal combustion engine |
DE102016105717B4 (en) * | 2016-03-29 | 2024-05-16 | Gehring Technologies Gmbh + Co. Kg | Process for producing rotationally symmetrical, non-cylindrical bores with a honing tool |
DE102016205754A1 (en) * | 2016-04-07 | 2017-10-12 | Bayerische Motoren Werke Aktiengesellschaft | Method for producing an engine block of an internal combustion engine |
DE102016110007A1 (en) | 2016-05-31 | 2017-11-30 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Cylinder for a reciprocating engine and method for finishing a cylinder for a reciprocating engine |
DE102018206113A1 (en) | 2018-04-20 | 2019-10-24 | Elgan-Diamantwerkzeuge Gmbh & Co. Kg | Finishing method for producing a non-circular cylindrical bore and fine machining system and grinding tool unit |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3607580A1 (en) * | 1986-03-07 | 1987-09-10 | Gehring Gmbh Maschf | HONEY DEVICE |
DE4007121A1 (en) * | 1989-03-15 | 1990-09-20 | Volkswagen Ag | Oval-bore-machining equipment - has honing bars moved radially by pressure on tapering slides moved axially |
EP0390938A1 (en) * | 1989-04-01 | 1990-10-10 | Maschinenfabrik Gehring GmbH & Co. | Method and apparatus for honing bores |
US5419037A (en) * | 1994-05-20 | 1995-05-30 | Outboard Marine Corporation | Method of inserting, boring, and honing a cylinder bore liner |
US5497693A (en) * | 1994-05-31 | 1996-03-12 | Patent Master, Inc. | Replacement cylinder for cast iron block engine remanufacture |
US5655854A (en) * | 1995-09-08 | 1997-08-12 | Foulk; Richard Arlo | Method of machining cylinder bores in engines at operating temperature |
US5681210A (en) * | 1996-06-03 | 1997-10-28 | General Motors Corporation | Honing tool for elliptical cylinder bore |
-
2001
- 2001-12-20 EP EP01130399A patent/EP1321229B1/en not_active Expired - Lifetime
- 2001-12-20 DE DE50114827.2T patent/DE50114827C5/en not_active Expired - Lifetime
-
2002
- 2002-12-16 JP JP2002364233A patent/JP2003200340A/en active Pending
- 2002-12-17 US US10/248,087 patent/US20030120374A1/en not_active Abandoned
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014221363A1 (en) | 2013-10-22 | 2015-04-23 | Ford Global Technologies, Llc | Method for producing a coated cylinder bore of an internal combustion engine |
DE102013221375A1 (en) | 2013-10-22 | 2015-04-23 | Ford Global Technologies, Llc | Method for producing a coated bore surface, in particular a cylinder bore |
RU2674362C2 (en) * | 2013-10-22 | 2018-12-07 | Форд Глобал Технолоджис, ЛЛК | Method for processing cylinder bore of internal combustion engine |
Also Published As
Publication number | Publication date |
---|---|
EP1321229A1 (en) | 2003-06-25 |
JP2003200340A (en) | 2003-07-15 |
US20030120374A1 (en) | 2003-06-26 |
DE50114827C5 (en) | 2017-05-24 |
DE50114827D1 (en) | 2009-05-20 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1321229B1 (en) | Method for forming a bore | |
EP2165001B1 (en) | Method and apparatus for increasing the strength of a part | |
DE202014010306U1 (en) | honing tool | |
DE69623695T2 (en) | Fast fatigue testing system for engine blocks | |
EP2829353A1 (en) | Method for producing an assembled camshaft | |
EP0399246B1 (en) | Process for increasing the creep rupture strength of crankshafts for piston engines, especially for internal-combustion engines | |
DE10237233B4 (en) | Clamping device of a fine machining device and method for the deformation-adapted finishing of a workpiece using the clamping device | |
DE102006060920A1 (en) | Cylinder sleeve for reciprocating piston internal combustion engine, has structure varying over breadth of interpolar area, such that middle thickness and middle size of structural units are different in different sections of area | |
WO2011082788A2 (en) | Design of combustion chamber bowls in pistons for internal combustion engines | |
DE19758660B4 (en) | Method for adjusting the fuel flow of component openings for injection valves | |
WO2010054648A1 (en) | Method for increasing the flexural strength of crankshafts | |
EP0802017A1 (en) | Device for honing shafts, particularly crankshafts | |
WO2018228793A1 (en) | Method and device for post-processing a crankshaft | |
DE68902514T2 (en) | METHOD FOR FINISHING THE TWO OPPOSITE EDGES OF A WORKPIECE AND DEVICE FOR CARRYING OUT THIS METHOD. | |
DE102016205754A1 (en) | Method for producing an engine block of an internal combustion engine | |
DE102006028184B4 (en) | Process for producing at least partially surface-compacted workpieces by rolling to final gauge | |
DE102006002523B4 (en) | Method for fine machining a cylinder bore for an engine block and deformation device therefor | |
DE102010052271B4 (en) | Honing tool and method for honing the inner surface of a bore in a workpiece | |
WO2005054522A1 (en) | Method for the selective hardening of sealing surfaces | |
DE102010000579B4 (en) | Workpiece holder for holding a workpiece to be machined in a machine tool | |
DE4307562A1 (en) | Method of manufacturing a cam of a built-up camshaft, in particular for the valve gear of an internal combustion engine | |
DE10149127B4 (en) | Compression piston ring for use in an internal combustion engine and diesel engine | |
EP1532364A1 (en) | Method for working a workpiece for a fuel high-pressure accumulator and workpiece for using this method | |
DE2822195C2 (en) | Split control rod operated by an actuator for a fuel injection pump of a piston internal combustion engine | |
DE102015119634B4 (en) | Cylinder warpage simulation device |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
|
AX | Request for extension of the european patent |
Extension state: AL LT LV MK RO SI |
|
17P | Request for examination filed |
Effective date: 20030929 |
|
AKX | Designation fees paid |
Designated state(s): DE ES FR GB IT SE |
|
17Q | First examination report despatched |
Effective date: 20050117 |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
RTI1 | Title (correction) |
Free format text: METHOD FOR FORMING A BORE |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: GEHRING GMBH & CO. KG |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): DE ES FR GB IT SE |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REF | Corresponds to: |
Ref document number: 50114827 Country of ref document: DE Date of ref document: 20090520 Kind code of ref document: P |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20090719 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20090708 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: TP |
|
26N | No opposition filed |
Effective date: 20100111 |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: 732E Free format text: REGISTERED BETWEEN 20100708 AND 20100714 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 15 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 16 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R046 Ref document number: 50114827 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R050 Ref document number: 50114827 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R206 Ref document number: 50114827 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 17 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20201216 Year of fee payment: 20 Ref country code: GB Payment date: 20201222 Year of fee payment: 20 Ref country code: FR Payment date: 20201218 Year of fee payment: 20 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R082 Ref document number: 50114827 Country of ref document: DE Representative=s name: DREISS PATENTANWAELTE PARTG MBB, DE Ref country code: DE Ref legal event code: R081 Ref document number: 50114827 Country of ref document: DE Owner name: GEHRING TECHNOLOGIES GMBH + CO. KG, DE Free format text: FORMER OWNER: GEHRING TECHNOLOGIES GMBH, 73760 OSTFILDERN, DE |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20201230 Year of fee payment: 20 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R071 Ref document number: 50114827 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: PE20 Expiry date: 20211219 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION Effective date: 20211219 |
|
P01 | Opt-out of the competence of the unified patent court (upc) registered |
Effective date: 20230511 |