EP2825340A1 - Procédé et dispositif de division d'une pièce par rupture - Google Patents

Procédé et dispositif de division d'une pièce par rupture

Info

Publication number
EP2825340A1
EP2825340A1 EP13710346.1A EP13710346A EP2825340A1 EP 2825340 A1 EP2825340 A1 EP 2825340A1 EP 13710346 A EP13710346 A EP 13710346A EP 2825340 A1 EP2825340 A1 EP 2825340A1
Authority
EP
European Patent Office
Prior art keywords
fracture separation
fracture
workpiece
notch
laser
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Withdrawn
Application number
EP13710346.1A
Other languages
German (de)
English (en)
Inventor
Siegfried Gruhler
Helmut Kutz
Horst SCHÖLLHAMMER
Matthias Drinkmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mauser Werke Oberndorf Maschinenbau GmbH
Original Assignee
Mauser Werke Oberndorf Maschinenbau GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mauser Werke Oberndorf Maschinenbau GmbH filed Critical Mauser Werke Oberndorf Maschinenbau GmbH
Publication of EP2825340A1 publication Critical patent/EP2825340A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C9/00—Bearings for crankshafts or connecting-rods; Attachment of connecting-rods
    • F16C9/04—Connecting-rod bearings; Attachments thereof
    • F16C9/045—Connecting-rod bearings; Attachments thereof the bearing cap of the connecting rod being split by fracturing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D31/00—Shearing machines or shearing devices covered by none or more than one of the groups B23D15/00 - B23D29/00; Combinations of shearing machines
    • B23D31/002—Breaking machines, i.e. pre-cutting and subsequent breaking
    • B23D31/003—Breaking machines, i.e. pre-cutting and subsequent breaking for rings
    • 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
    • B23K26/362—Laser etching
    • B23K26/364—Laser etching for making a groove or trench, e.g. for scribing a break initiation groove
    • 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
    • B23K26/38—Removing material by boring or cutting
    • B23K26/382—Removing material by boring or cutting by boring
    • B23K26/384—Removing material by boring or cutting by boring of specially shaped holes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C7/00—Connecting-rods or like links pivoted at both ends; Construction of connecting-rod heads
    • F16C7/02—Constructions of connecting-rods with constant length
    • F16C7/023—Constructions of connecting-rods with constant length for piston engines, pumps or the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J7/00—Piston-rods
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P2700/00—Indexing scheme relating to the articles being treated, e.g. manufactured, repaired, assembled, connected or other operations covered in the subgroups
    • B23P2700/04—Connecting rods
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T225/00—Severing by tearing or breaking
    • Y10T225/10—Methods
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T225/00—Severing by tearing or breaking
    • Y10T225/30—Breaking or tearing apparatus
    • Y10T225/307—Combined with preliminary weakener or with nonbreaking cutter
    • Y10T225/321—Preliminary weakener
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/21—Elements
    • Y10T74/2142—Pitmans and connecting rods
    • Y10T74/2162—Engine type

Definitions

  • the invention relates to a method for fracture separation of a workpiece according to the preamble of claim 1, a device for fracture separation of a workpiece and a method according to the method or by means of the device
  • EP 0 808 228 B2 of the Applicant is a generic
  • This notch consists of a plurality of notch portions, the distance of which results essentially from the pulse rate of the laser and the feed rate of the laser beam with respect to the connecting rod. It was found that the notch impact number can be increased considerably compared to through notches by these notch portions, so that a notch and an optimized fracture separation surface with relatively less
  • Feed rate, the relative movement and the pulse rate of the laser results.
  • Such a behavior can be adjusted for example by means of a fiber laser.
  • Such fiber lasers may, in principle, be diode-spotted solid-state lasers, with a core of a glass fiber forming the active medium.
  • the radiation of the solid-state laser is introduced via coupling into the fiber, in which then the actual laser gain takes place.
  • the beam properties and the beam quality of the laser can be adjusted via geometry of the fiber, so that the laser remains largely independent of external influences and shows a very simple structure.
  • the laser beam After emerging from the said active fiber, the laser beam is introduced into a glass fiber, via which the radiation is then guided to the actual laser head and is directed by way of focusing optics onto the workpiece to be machined.
  • Such fiber lasers are characterized by a very good electrical-optical efficiency and outstanding beam quality in a very compact structure, so that less costly solutions can be created with a small space than conventional lasers.
  • Light metal alloys are also used in engine construction. For example, aluminum and
  • Titanium connecting rods are used in internal combustion engines.
  • Kegeltassenbrüchen comes, in which the fracture separation plane towards a
  • the invention has for its object to provide a method and apparatus for fracture separation of a workpiece and a workpiece, which, even with the use of a lightweight material, such as aluminum or titanium alloys, a fracture toughened material or a fracture behavior in conventional fracture separation negative impact surface treatment ensures improved fracture behavior.
  • the inventive method is used for fracture separation of a workpiece along a bearing eye, wherein at this diametrically arranged Bruchtrennkerben be formed in a peripheral wall, which give approximately the fracture separation plane.
  • the fracture separation then takes place by means of a Crackdorns, in the
  • At least one Bruchleitkerbe is formed at a distance from the fracture separation notches, which also determines the course of the fracture separation plane.
  • This Bruchleitkerbe is inventively designed so that the fracture separation plane is within the predetermined range and thus the emergence of
  • Light metal alloys can be avoided.
  • the Bruchleitkerbe invention provides excellent protection against breakages. These can occur, for example, in a workpiece with a threaded hole. In the case where the threaded hole as
  • the fracture separation notch on the outer circumference forms a protection against false leads, in particular in the case of forged workpieces, in which the forged skin is cold-hardened, for example by shot peening.
  • cold-forged forge are used, for example, in high-performance engines. Without such Bruchtrenn- / Bruchleitkerbe would break the fracture separation plane in the range of work-hardened forged skin of the desired course in such a workpiece (faulty line).
  • the workpiece according to the invention is produced by such a method.
  • the device in particular for carrying out this method has a Laser unit for forming the fracture separation notches, a cracking unit and a
  • Processing unit for forming the at least one Bruchleitkerbe said processing unit is preferably a mechanical processing unit.
  • the Bruchleitkerbe course be formed in other ways, for example by laser energy or by forming, for example by forging. In this forging process, the workpiece is compressed in the desired area, so that the Bruchleitkerbe arises.
  • the formation of the Bruchleitkerbe can also be electrochemical (Electrochemical Machining). In this case, a tool electrode and the workpiece are in an electrolyte
  • the voltage can be applied as a DC voltage or pulsed to increase the precision.
  • the method according to the invention is used in particular for workpieces, for example a threaded bore, which has an opening in the region of the intended fracture separation plane, on the circumference of which the fracture guide notch is then formed.
  • the fracture separation notches are preferably introduced in the manner described above by laser energy, preferably by means of a fiber laser.
  • the fracture separation behavior can be further improved if the
  • Bruchtrennkerben are formed circumferentially on the bearing eye.
  • either the laser and / or the workpiece can be pivoted about a pivot axis.
  • the workpiece is a connecting rod
  • the connecting rod eye is fracture-separated into a bearing shell and a connecting rod side part.
  • the fracture separation notches are diametrically formed on the peripheral wall of the bearing eye and in each case a Bruchleitkerbe formed in screw holes of the connecting rod.
  • the invention is by no means limited to an application in connecting rods, but can also be used in other bruchzututeden workpieces in which, for example, a bearing cap to be separated from a block or the like. Such tasks arise, for example, crankshaft housings, camshaft housings, etc.
  • the fracture behavior can be further improved if the workpiece is thermally treated at least partially in the region of the fracture separation notch and / or the fracture guide groove before the actual fracture separation.
  • the fracture separation can be carried out in a conventional manner by the so-called impact or crack cracking, wherein an expanding mandrel with a
  • Bruchtrenn force is applied, which is sufficient to initiate cracking.
  • the so-called fatigue crack cracking or crack propagation cracking may be performed, in which the expanding mandrel has a fracture separation force
  • the fracture separation behavior can also be improved by the fact that the fracture separation notches and / or the Bruchleitkerben are not approximately rectilinear but executed with transversely to their longitudinal sections (bulges) executed, so that in a first approximation, a sinusoidal or zig-zag -shaped fracture separation notch geometry forms.
  • a wave-shaped cracking region forms during the fracture separation, which enables a secure pre-centering of the fracture-separated workpiece parts, for example during subsequent screwing.
  • Such a form laser notch is disclosed for example in DE 10 2005 031 335 A1 of the applicant.
  • Treatment by heating the workpiece can be done for example by means of laser energy and / or a suitable method, for example by induction.
  • the inventive device can be equipped with a turning table for the
  • Swivel axis can be executed.
  • the cycle times can be reduced if a workpiece with two
  • Bruchleit- and fracture separation notch is advantageous for certain materials (light alloys (such as Ti, AL alloys) fracture toughened material, material with work hardened outer skin) and / or used in workpieces in which by the choice of materials,
  • Figure 1 is a three-dimensional representation of a forged
  • Figure 2 is a partial sectional view of the connecting rod of Figure 1;
  • Figure 4 is a schematic diagram of a laser unit of the device according to the invention, are formed with the two fracture separation notches in the connecting rod of Figure 1;
  • Figure 5 shows a variant of the device according to Figure 4.
  • Figures 6 and 7 embodiments of a connecting rod with form laser notches.
  • the connecting rod 1 of an internal combustion engine shown in Figure 1 consists of an aluminum alloy, which has a comparatively high proportion of silicon, for example between 0.3 to 2 percent by weight and thus, as explained above, difficulties in cracking in the conventional manner, since cone cup fractures may occur.
  • the aluminum connecting rod 1 has a large connecting rod 2 and a small connecting rod 4, between which a connecting rod 6 extends.
  • the connecting rod in the region of the large connecting rod 2 in a connecting rod-side part 8 and a bearing shell 10 is to be fracture-separated.
  • the two elements are joined again and screwed by means of two screws 12, of which only one is visible in the illustration according to FIG.
  • These screws 12 may be conventional steel screws.
  • the fracture separation plane is defined by diametrically arranged fracture separation notches in the circumferential wall 14 of the large connecting rod 2.
  • these fracture separation notches 16, 18 are formed not only in the region of the peripheral wall 14 but circumferentially, i. these fracture separation notches 16, 18 extend along the circumferential wall 14 and along the adjacent end face 20, the respective side face 22 and the rear end face not visible in FIG. 1, so that the entire circumferential face of the respective connecting rod web is encompassed.
  • Preliminary tests have shown, however, that such a circumferential fracture separation not always sufficient to prevent the formation of
  • Bolt hole 26 the screw is omitted.
  • the Bruchleitkerbe 24 is formed in the plane defined by the circumferential fracture separation notch 18 plane, which is located in the dash-dotted line broken fracture plane 28, the Bruchleitkerbe 24 is formed. This thus forms a circumferential recess in the screw hole 26.
  • This recess is preferably mechanically, for example by a puncture tool and thus by
  • the angle at which the cutting edge of the insertion tool is made with respect to the peripheral wall of the screw hole 26 can be about 60 ° to 90 °.
  • a four-spindle machining unit can be provided for this mechanical machining, which makes it possible to machine several connecting rods and / or both bolt holes at the same time. It is preferred if this mechanical processing unit is designed according to the inverse concept, in which the spindles are arranged stationary, while the workpiece performs the required relative to the machining relative movements to the spindles.
  • a break guide notch 24 is thus formed at a distance from the fracture separation notch 16, 18 in the region of the intended fracture separation plane 28, so that the emergence of cone cup fractures can be reliably prevented.
  • the fracture separation notches 16, 18 are introduced by laser energy, for example by the method explained in the introduction to the description, preferably by means of a fiber laser, so that the thermal load and thus the structural transformation in the region of
  • FIG. 3 shows a typical fracture surface course that occurs when the method according to the invention is used. Shown is, for example, the fracture surface in the region of the Pleuelaugenstegs shown in Figure 2 of the bearing shell 10. Man recognizes the screw hole 26 and the bearing cup side part of the
  • Rupture cut notch 18 made by means of a fiber laser.
  • the fracture separation notch 18 is composed of a plurality of notched portions 30 spaced apart from each other.
  • the laser beam is directed at an angle of 30 °, i. obliquely coupled to the peripheral surface.
  • other Einkoppelwinkel can be realized.
  • Bruchleitkerbe 24 runs - a cone cup break is not even begin to determine.
  • the formation of the Bruchleitkerbe 24 can also be done by laser energy or otherwise. It is conceivable, for example, the Bruchleitkerbe 24 form by targeted compression of the material in this area, so that the Bruchleitkerbe 24 practically formed by a formed due to the buckling concavity in the screw hole area. Such a compression process is described for example in DE 43 03 592.
  • the fracture separation process and thus the quality of the fracture separation plane can be further improved if the connecting rod before fracture separation at least partially in
  • Area of the proposed fracture separation plane 28 is heated.
  • the special feature of some aluminum alloys is used, in which the fracture toughness decreases with increasing temperature.
  • Steel alloys show exactly the opposite behavior, in which the fracture toughness increases with increasing temperature.
  • This heating can be done, for example, inductively. In principle, it is also possible to carry out this heating additionally or alternatively by means of the laser.
  • fracture toughness can be reduced by partial cooling of the respective workpiece
  • the fracture separation of the connecting rod can be carried out by means of a device according to the invention, which may have a plurality of processing units, which are arranged locally separated from each other or else may be integrated into a system.
  • a laser unit is required for introducing the fracture separation notches 16, 18, a cracking unit for fracture separation and a joining unit for assembling the fracture-separated elements by inserting or tightening the screws 12, which may remain in the connecting rod during fracture separation.
  • a mechanical processing unit is required for forming the Bruchleitkerben 24, wherein this processing unit is preferably not integrated into the actual breakage separation unit, but by a
  • the actual laser unit according to FIG. 4 has a fiber laser of the type described at the beginning, in the laser head 34 of which focusing optics are arranged so that the laser beam 36 is machined at a predetermined angle
  • the laser head can be rotated about its vertical axis a (see dashed line in Figure 4). Furthermore, the laser head 34 is on a guide
  • FIG. 4 illustrates by way of example a possibility of a large number of possibilities for forming the circumferential fracture separation notches 16, 18.
  • the laser head 34 is brought into the position "1" shown in FIG. 4 and then moved along the y-axis, so that the section of the fracture separation notch lying in the peripheral surface 14 is formed.
  • the laser head 34 is moved back to its original position and moved in the x direction in the position marked "2" and the in FIG. 4 formed on the top right circumferential portion of the other break separation notch 16.
  • the laser head 34 is moved in the position shown in dashed lines and pivoted about the axis a by 180 °, so that in the peripheral surface 14 lying portion of the fracture separation notch 16 is formed ("4"), wherein this in the direction of arrow in FIG 4, the laser head 34 is moved to the left along the x, y guide and, according to "5", the circumferential section of the other break separation notch 18 is formed.
  • Figure 5 shows a variant in which the formation of the fracture separation notches 16, 18 can be performed much faster.
  • a further laser unit with a laser head 38 is provided in addition to the one laser with the laser head 34.
  • This can, similar to the embodiment described above, be pivoted about a vertically extending axis a2 and moved in the x 2 , y 2 direction. With such an arrangement, it is possible, for example, each two peripheral portions of the respective laser notches 16, 18 form simultaneously.
  • the region of the fracture separation notch 18 lying on the upper left is thus formed above the laser head 34, while the fracture separation notch 18 is formed on the laser head 34
  • Laser head 38 forms the area lying in the peripheral surface 14 of the laser notch 18.
  • this arrangement could also be controlled so the one laser head 34 processes the one fracture separation notch 18 and the other laser head 38 processes the other fracture separation notch 16.
  • laser unit mechanical processing unit for the Bruchleitkerbe 24
  • mechanical processing unit for the Bruchleitkerbe 24
  • Breakthrough or the like is formed, which allows the formation of a Bruchleitkerbe spaced from the fracture separation notch.
  • the workpiece can also be movably mounted along an x, y guide.
  • the setting behavior of the fracture surfaces can be further improved by a partial laser irradiation.
  • the fracture separation can be carried out in a conventional manner by the so-called impact or crack cracking, in which the over the expanding mandrel
  • Screwing can be significantly simplified if the fracture separation notch is wave-shaped or zig-zag-shaped, so that transverse to Bruchtrennkerbenlteilsachse offset sections arise. This sine wave or waveform then runs in the
  • Fracture separation plane away from the fracture separation notch more or less flat and allows pre-centering of fracture-separated parts. The fine centering then takes place through the irregularities in the structure predetermined by the microstructure
  • the fracture separation notches are not rectilinear and circumferential as in the exemplary embodiment according to FIG 1, but have a wave-shaped structure which is designed to run around the circumference chosen light sinusoidal shape, being in each
  • Outer circumferential wall is formed in each case a downwardly or upwardly deflected "shaft" 40.
  • these shafts 40 terminate in straight sections 42 which lie, to a first approximation, in the fracture separation plane which would be formed with a straight fracture separation notch geometry Accordingly, the fracture separation notches in the corner regions, ie, in the transition regions from the peripheral wall or the outer circumferential wall to the end wall regions, can then also be formed in a straight line
  • Fracture separation notch 14, 16 is only one in the illustration of Figure 6 up or down extending buckle (shaft 42) is formed.
  • FIG. 7 shows an embodiment in which the shaping laser notch with its wave form or the bulges extending upwards and / or downwards is formed only in the area of the inner circumferential surface 14. The areas of
  • Fracture separation notch on the two end faces 20 and on the outer
  • Buckling 40 also other notch geometries are used.
  • According to the invention is in Distance to a break separation notch at least one Bruchleitkerbe formed, which determines the course of the fracture separation plane with.
  • the device for fracture separation of the workpiece has a laser unit for forming the fracture separation groove and a machining unit for forming the fracture guide groove.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Plasma & Fusion (AREA)
  • Laser Beam Processing (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)

Abstract

L'invention concerne un procédé et un dispositif de division d'une pièce par rupture, ainsi qu'une pièce divisée selon le procédé de l'invention ou au moyen du dispositif de l'invention. Au moins une encoche de guidage de rupture (24) qui détermine conjointement l'orientation du plan de rupture (28) est formée à distance d'une encoche de rupture (16, 18). Le dispositif de division de la pièce comporte un module laser servant à former l'encoche de rupture (16, 18) et un module d'usinage mécanique servant à former l'encoche de guidage de rupture (24).
EP13710346.1A 2012-03-12 2013-03-12 Procédé et dispositif de division d'une pièce par rupture Withdrawn EP2825340A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102012102053 2012-03-12
DE201210112539 DE102012112539A1 (de) 2012-03-12 2012-12-18 Verfahren und Vorrichtung zum Bruchtrennen eines Werkstücks
PCT/EP2013/054931 WO2013135652A1 (fr) 2012-03-12 2013-03-12 Procédé et dispositif de division d'une pièce par rupture

Publications (1)

Publication Number Publication Date
EP2825340A1 true EP2825340A1 (fr) 2015-01-21

Family

ID=49029527

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13710346.1A Withdrawn EP2825340A1 (fr) 2012-03-12 2013-03-12 Procédé et dispositif de division d'une pièce par rupture

Country Status (8)

Country Link
US (1) US20150108195A1 (fr)
EP (1) EP2825340A1 (fr)
JP (1) JP2015516888A (fr)
KR (1) KR20140132411A (fr)
CN (1) CN104271308B (fr)
DE (1) DE102012112539A1 (fr)
MX (1) MX2014010985A (fr)
WO (1) WO2013135652A1 (fr)

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DE102014117874A1 (de) 2013-12-05 2015-06-11 Mauser-Werke Oberndorf Maschinenbau Gmbh Verfahren und Werkstück
DE102014215444A1 (de) * 2014-08-05 2016-02-11 Mahle International Gmbh Vorrichtung zum Laserstrukturieren von Naben von Motorkomponenten
DE102015106956A1 (de) 2014-09-29 2016-03-31 Mauser-Werke Oberndorf Maschinenbau Gmbh Verfahren zum Bruchtrennen von Werkstücken und Werkstückrohling
US10618103B2 (en) * 2015-11-20 2020-04-14 Caterpillar Inc. Method for non-linear fracture splitting
JP6917261B2 (ja) * 2017-09-29 2021-08-11 株式会社安永 延性金属製部品の破断面処理方法、及びその破断面処理装置、並びに延性金属製部品の製造方法
JP6958340B2 (ja) * 2017-12-25 2021-11-02 トヨタ自動車株式会社 コンロッドの製造方法及びコンロッド
JP6930447B2 (ja) * 2018-02-01 2021-09-01 トヨタ自動車株式会社 コンロッドの製造方法
US11376662B2 (en) * 2019-05-10 2022-07-05 American Axle & Manufacturing, Inc. Method for forming center link of connecting rod for variable displacement engine

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JP2015516888A (ja) 2015-06-18
WO2013135652A1 (fr) 2013-09-19
KR20140132411A (ko) 2014-11-17
DE102012112539A1 (de) 2013-09-12
CN104271308B (zh) 2017-08-29
MX2014010985A (es) 2014-11-21
US20150108195A1 (en) 2015-04-23

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