DE102008020649A1 - Producing high pressure fuel accumulator with body having main- and transverse hole, which flows into main hole at opening, by introducing and diverting laser beam axially to main hole, so that ridge and/or edge is removed at the opening - Google Patents
Producing high pressure fuel accumulator with body having main- and transverse hole, which flows into main hole at opening, by introducing and diverting laser beam axially to main hole, so that ridge and/or edge is removed at the opening Download PDFInfo
- Publication number
- DE102008020649A1 DE102008020649A1 DE102008020649A DE102008020649A DE102008020649A1 DE 102008020649 A1 DE102008020649 A1 DE 102008020649A1 DE 102008020649 A DE102008020649 A DE 102008020649A DE 102008020649 A DE102008020649 A DE 102008020649A DE 102008020649 A1 DE102008020649 A1 DE 102008020649A1
- Authority
- DE
- Germany
- Prior art keywords
- main
- laser beam
- mouth
- hole
- pressure fuel
- 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- Withdrawn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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
- F02M61/168—Assembling; Disassembling; Manufacturing; Adjusting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/08—Devices involving relative movement between laser beam and workpiece
- B23K26/10—Devices involving relative movement between laser beam and workpiece using a fixed support, i.e. involving moving the laser beam
- B23K26/103—Devices involving relative movement between laser beam and workpiece using a fixed support, i.e. involving moving the laser beam the laser beam rotating around the fixed workpiece
- B23K26/106—Devices involving relative movement between laser beam and workpiece using a fixed support, i.e. involving moving the laser beam the laser beam rotating around the fixed workpiece inside the workpiece
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/352—Working by laser beam, e.g. welding, cutting or boring for surface treatment
- B23K26/3568—Modifying rugosity
- B23K26/3576—Diminishing rugosity, e.g. grinding; Polishing; Smoothing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/361—Removing material for deburring or mechanical trimming
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
- F02M55/02—Conduits between injection pumps and injectors, e.g. conduits between pump and common-rail or conduits between common-rail and injectors
- F02M55/025—Common rails
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/006—Vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
- B23K2101/12—Vessels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/02—Iron or ferrous alloys
- B23K2103/04—Steel or steel alloys
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/80—Fuel injection apparatus manufacture, repair or assembly
- F02M2200/8069—Fuel injection apparatus manufacture, repair or assembly involving removal of material from the fuel apparatus, e.g. by punching, hydro-erosion or mechanical operation
Abstract
Description
Die Erfindung betrifft ein Verfahren zum Herstellen eines Kraftstoffhochdruckspeichers und einen Kraftstoffhochdruckspeicher. Der Kraftstoffhochdruckspeicher umfasst einen Körper, der eine Hauptbohrung und eine Querbohrung aufweist, die in die Hauptbohrung an einer Mündung mündet.The The invention relates to a method for producing a high-pressure fuel accumulator and a high-pressure fuel storage. The high-pressure fuel storage includes a body which has a main bore and a transverse bore into the main bore at an estuary empties.
Bei einem Ausbilden der Querbohrung in dem Körper ergibt sich regelmäßig ein Grat und/oder eine Kante an der Stelle, an der die Querbohrung in den Hauptkörper mündet. Im Bereich des Grates und in daran angrenzenden Bereichen des Körpers können daraus starke mechanische Spannungen des Körpers resultieren. Die mechanischen Spannungen begünstigen eine Schädigung des Körpers. Die mechanischen Spannungen können durch Entfernen des Grates abgebaut werden.at Forming the transverse bore in the body is a regular result Burr and / or an edge at the point where the cross hole in the main body empties. In the area of the ridge and in adjoining areas of the body can make it strong mechanical stresses of the body result. The mechanical Encourage tensions a damage of the body. The mechanical stresses can be removed by removing the ridge.
Falls die Bohrungen sehr klein sind, ist es nur schwer möglich mit einem Werkzeug den Grat bzw. die Kante zu entfernen. Der Grat bzw. die Kante können beispielsweise durch elektrochemischen Materialabtrag (ECM), durch Rückwärtsentgratung mittels eines zusammenklappbaren Fräswerkzeugs und/oder durch Druck-Fließ-Läppen hergestellt werden.If the holes are very small, it is very difficult with a tool to remove the burr or the edge. The ridge or the edge can for example, by electrochemical material removal (ECM), by Rückwärtsentgratung produced by means of a collapsible milling tool and / or by pressure flow lapping become.
Die Aufgabe, die der Erfindung zugrunde liegt, ist es, ein Verfahren zum Herstellen eines Kraftstoffhochdruckspeichers anzugeben, das besonders exakt und einfach ist. Ferner ist es die Aufgabe, einen Kraftstoffhochdruckspeicher anzugeben, der besonders zuverlässig ausgebildet ist.The Problem underlying the invention is to provide a method to provide for producing a high-pressure fuel storage, the is very precise and easy. Furthermore, it is the task of a high-pressure fuel storage to specify the most reliable is trained.
Die Aufgabe wird gelöst durch die Merkmale der unabhängigen Patentansprüche. Vorteilhafte Ausgestaltungen der Erfindung sind in den Unteransprüchen gekennzeichnet.The Task is solved by the characteristics of the independent Claims. Advantageous embodiments of the invention are characterized in the subclaims.
Die Erfindung zeichnet sich aus durch ein Verfahren zum Herstellen eines Kraftstoffhochdruckspeichers mit einem Körper, der eine Hauptbohrung und eine Querbohrung aufweist. Die Querbohrung mündet in die Hauptbohrung an einer Mündung. Ein Laserstrahl wird durch die Querbohrung des Körpers eingebracht und derart abgelenkt, dass ein Grat und/oder eine Kante an der Mündung entfernt wird.The Invention is characterized by a method for producing a High-pressure fuel accumulator with a body that has a main bore and has a transverse bore. The transverse bore opens into the main bore a mouth. A laser beam is introduced through the transverse bore of the body and so on distracted, that removes a ridge and / or an edge at the mouth becomes.
Dies hat den Vorteil, dass besonders einfach der Grat und/oder die Kante an der Mündung entfernt werden kann und somit mechanische Spannungen im Bereich der Mündung verringert werden können. Ferner kann mittels der Laserstrahlung an der Mündung eine hohe Druck- und Druckpulsfestigkeit erreicht werden und somit der Kraftstoffhochdruckspeicher besonders zuverlässig betrieben werden.This has the advantage that especially easy the burr and / or the edge at the mouth can be removed and thus mechanical stresses in the area the estuary can be reduced. Further can by means of laser radiation at the mouth of a high pressure and Pressure pulse strength can be achieved and thus the high-pressure fuel storage especially reliable operate.
In einer vorteilhaften Ausgestaltung ist der Durchmesser der Querbohrung kleiner als der Durchmesser der Hauptbohrung.In an advantageous embodiment, the diameter of the transverse bore smaller than the diameter of the main hole.
In einer derartigen Ausgestaltung kann besonders geeignet mittels der Laserbestrahlung der Grat und/oder die Kante an der Mündung entfernt werden, insbesondere weil mittels der Laserbestrahlung ein aus dem geringeren Durchmesser der Querbohrung resultierender Platzmangel unberücksichtig bleiben kann.In such a configuration can be particularly suitable by means of Laser irradiation of the ridge and / or the edge to be removed at the mouth, in particular because of the laser irradiation one of the lower Diameter of the transverse bore resulting lack of space disregard can.
In einer weiteren vorteilhaften Ausgestaltung wird der Laserstrahl mittels zumindest einen Spiegels abgelenkt.In A further advantageous embodiment of the laser beam deflected by at least one mirror.
Mittels des Spiegels kann der Laserstrahl besonders genau reflektiert und somit abgelenkt werden, so dass die Stelle der Mündung bearbeitet wird, die den Grat und/oder die Kante aufweist. Dies hat den Vorteil, dass auch bei sehr geringem Durchmesser der Querbohrung und/oder Hauptbohrung die Mündung mittels Laserbestrahlung bearbeitet werden kann.through of the mirror, the laser beam can be reflected and accurately thus be deflected, so that the point of the mouth is processed, the has the burr and / or the edge. This has the advantage that even with very small diameter of the transverse bore and / or main bore the estuary can be processed by laser irradiation.
In einer weiteren vorteilhaften Ausgestaltung wird nach der Laserbestrahlung ein Bereich der mittels des Laserstrahls bearbeiteten Mündung aktiv abgekühlt.In A further advantageous embodiment is after the laser irradiation an area of the mouth machined by the laser beam is active cooled.
Dies kann dazu beitragen, dass im Bereich der Mündung, der aufgrund der Laserbestrahlung des Grat und/oder das Kante besonders stark erwärmt wurde, eine hohe Druck- und Druckpulsfestigkeit erreicht wird. Dies ist besonders dann vorteilhaft, wenn aufgrund der hohen mittels der Laserbestrahlung erreichten Druck- und Druckpulsfestigkeit nachfolgende Herstellungsprozesse, so z. B. Autofrettageprozesse, entfallen können.This can contribute to the fact that in the area of the mouth, due to the laser irradiation of the Burr and / or the edge was particularly strongly heated, a high pressure and pressure pulse strength is achieved. This is especially advantageous if due to the high pressure achieved by the laser irradiation and pressure pulse strength subsequent manufacturing processes, such. B. Autofrettageprozesse can be omitted.
In einer weiteren vorteilhaften Ausgestaltung wird mittels eines Luftstroms der Bereich der mittels des Laserstrahls bearbeiteten Mündung aktiv abgekühlt.In A further advantageous embodiment is by means of an air flow the area of the mouth machined by the laser beam is active cooled.
Mittels des Luftstroms kann besonders einfach die Abkühlung des entsprechenden Bereichs der Mündung erfolgen. Auch ein vorhandener Platzmangel kann bei Verwendung des Luftstroms unberücksichtigt bleiben.through the air flow can be particularly easy cooling of the corresponding area of the muzzle respectively. Also, an existing lack of space can when using the Air flow unconsidered stay.
In einer weiteren vorteilhaften Ausgestaltung wird der Grat und/oder die Kante an der Mündung derart entfernt, dass eine Abrundung der Mündung erzeugt wird.In In another advantageous embodiment, the burr and / or the edge at the mouth so removed that a rounding of the mouth is generated.
Aufgrund der abgerundeten Ausbildung der Mündung kann die mechanische Spannung minimiert werden.by virtue of The rounded formation of the mouth can be mechanical Tension can be minimized.
In einer weiteren vorteilhaften Ausgestaltung wird der Grat und/oder die Kante an der Mündung derart entfernt, dass eine fasenförmige Ausbildung der Mündung erzeugt wird.In a further advantageous embodiment the burr and / or the edge at the mouth is removed such that a chamfer-shaped formation of the mouth is produced.
Aufgrund der fasenförmigen Ausbildung der Mündung kann die mechanische Spannung minimiert werden.by virtue of the chamfered Training the estuary the mechanical stress can be minimized.
Des Weiteren zeichnet sich die Erfindung aus durch ein Verfahren zum Herstellen eines Kraftstoffhochdruckspeichers, bei dem ein Laserstrahl axial zu der Hauptbohrung des Körpers in diesen eingebracht wird und derart abgelenkt wird, dass ein Grat und/oder eine Kante an der Mündung entfernt wird.Of Furthermore, the invention is characterized by a method for Producing a high-pressure fuel storage in which a laser beam axially to the main bore of the body is introduced into this and is deflected so that a burr and / or an edge at the mouth Will get removed.
Dadurch kann der Grat und/oder die Kante an der Mündung besonders einfach entfernt werden und somit die mechanischen Spannungen im Bereich der Mündung verringert werden. Ferner kann mittels der Laserbestrahlung an der Mündung eine hohe Druck- und Druckpulsfestigkeit erreicht werden und somit der Kraftstoffhochdruckspeicher besonders zuverlässig ausgebildet werden.Thereby The burr and / or the edge at the mouth can be removed particularly easily be and thus reduces the mechanical stresses in the mouth become. Furthermore, by means of the laser irradiation at the mouth of a high pressure and pressure pulse strength can be achieved and thus the Fuel high pressure accumulator are designed to be particularly reliable.
Die vorteilhafte Ausgestaltung des Verfahrens zum Herstellen eines Kraftstoffhochdruckspeichers bei dem ein Laserstrahl durch die Querbohrung des Körpers eingebracht wird, kann ohne weiteres auf eine vorteilhafte Ausgestaltung des Verfahrens zum Herstellen eines Kraftstoffhochdruckspeichers, bei dem ein Laserstrahl axial zu der Hauptbohrung des Körpers in diesen eingebracht wird, und/oder auf den Kraftstoffhochdruckspeicher übertragen werden.The advantageous embodiment of the method for producing a high-pressure fuel storage in which a laser beam is introduced through the transverse bore of the body can be readily to an advantageous embodiment of the Method for producing a high-pressure fuel storage, at a laser beam axially to the main bore of the body in this is introduced, and / or transmitted to the high-pressure fuel storage become.
Ausführungsbeispiele der Erfindung sind im Folgenden anhand der schematischen Zeichnungen näher erläutert. Es zeigen:embodiments The invention are explained in more detail below with reference to the schematic drawings. It demonstrate:
Elemente gleicher Konstruktion oder Funktion sind figurenübergreifend mit dem gleichen Bezugszeichen gekennzeichnet.elements same construction or function are cross-figurative with the same Reference number marked.
Ein
Kraftstoffhochdruckspeicher
Vorzugsweise
steht eine Achse Y der Querbohrung
Nach
der Entfernung eines vorhandenen Grates und/oder einer Kante, weist
der Bereich der mittels des Laserstrahls
Der
Spiegel
Vorzugsweise
ist die Mündung
In
In
Bevorzugt
umfasst eine Brennkraftmaschine, insbesondere eine Dieselbrennkraftmaschine, den
Kraftstoffhochdruckspeicher
- 11
- Körperbody
- 22
- KraftstoffhochdruckspeicherHigh-pressure fuel storage
- 44
- radialer Anschlussradial connection
- 55
- axialer Anschlussaxial connection
- 66
- Hauptbohrungmain bore
- 88th
- Querbohrungcross hole
- 1010
- Mündungmuzzle
- 1212
- Laserstrahllaser beam
- 1414
- Spiegelmirror
- 1515
- Laserlaser
- 1616
- fasenförmiger Mündungsabschnittchamfered mouth section
- XX
- Achse der Hauptbohrungaxis the main hole
- YY
- Achse der Querbohrungaxis the transverse bore
Claims (9)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008020649A DE102008020649A1 (en) | 2008-04-24 | 2008-04-24 | Producing high pressure fuel accumulator with body having main- and transverse hole, which flows into main hole at opening, by introducing and diverting laser beam axially to main hole, so that ridge and/or edge is removed at the opening |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008020649A DE102008020649A1 (en) | 2008-04-24 | 2008-04-24 | Producing high pressure fuel accumulator with body having main- and transverse hole, which flows into main hole at opening, by introducing and diverting laser beam axially to main hole, so that ridge and/or edge is removed at the opening |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102008020649A1 true DE102008020649A1 (en) | 2009-10-29 |
Family
ID=41111752
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102008020649A Withdrawn DE102008020649A1 (en) | 2008-04-24 | 2008-04-24 | Producing high pressure fuel accumulator with body having main- and transverse hole, which flows into main hole at opening, by introducing and diverting laser beam axially to main hole, so that ridge and/or edge is removed at the opening |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102008020649A1 (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10001507A1 (en) * | 2000-01-15 | 2001-07-19 | Bosch Gmbh Robert | Through aperture making process, for high-pressure fuel store, involves pressing pressure part against inner wall of jacket body before making aperture |
JP2006322446A (en) * | 2005-04-19 | 2006-11-30 | Nippon Steel Corp | Common rail and its manufacturing method |
-
2008
- 2008-04-24 DE DE102008020649A patent/DE102008020649A1/en not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10001507A1 (en) * | 2000-01-15 | 2001-07-19 | Bosch Gmbh Robert | Through aperture making process, for high-pressure fuel store, involves pressing pressure part against inner wall of jacket body before making aperture |
JP2006322446A (en) * | 2005-04-19 | 2006-11-30 | Nippon Steel Corp | Common rail and its manufacturing method |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OP8 | Request for examination as to paragraph 44 patent law | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |
Effective date: 20141101 |