EP3020488A1 - Procédé de raccordement de bandes métalliques - Google Patents

Procédé de raccordement de bandes métalliques Download PDF

Info

Publication number: EP3020488A1
Authority: EP; European Patent Office
Prior art keywords: band; clinching; tool; strip; metal strip
Prior art date: 2014-11-14
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.): Granted

Application number

EP15180134.7A

Other languages

German (de)

English (en)

Other versions

EP3020488B1 (fr

Inventor

Andreas Noé

Jens Hoffmann

Friedhelm Ambaum

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.)

BWG Bergwerk und Walzwerk Maschinenbau GmbH

Original Assignee

BWG Bergwerk und Walzwerk 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.)

2014-11-14

Filing date

2015-08-07

Publication date

2016-05-18

2015-08-07 Application filed by BWG Bergwerk und Walzwerk Maschinenbau GmbH filed Critical BWG Bergwerk und Walzwerk Maschinenbau GmbH

2016-05-18 Publication of EP3020488A1 publication Critical patent/EP3020488A1/fr

2018-03-14 Application granted granted Critical

2018-03-14 Publication of EP3020488B1 publication Critical patent/EP3020488B1/fr

Status Not-in-force legal-status Critical Current

2035-08-07 Anticipated expiration legal-status Critical

Links

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Classifications

- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
- B21D39/03—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of sheet metal otherwise than by folding
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
- B21D39/03—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of sheet metal otherwise than by folding
- B21D39/031—Joining superposed plates by locally deforming without slitting or piercing
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
- B21C47/24—Transferring coils to or from winding apparatus or to or from operative position therein; Preventing uncoiling during transfer
- B21C47/247—Joining wire or band ends

Definitions

the invention relates to a method for connecting a strip end of a first metal strip to the strip beginning of a second metal strip, in particular in strip processing plants, wherein the tape end and the tape start positioned one above the other to form an overlap and in the overlapping at several connection points by means of clinching without cutting and thus without Cutting proportion are connected together.
band connections can also be produced by means of clinching, which is also referred to as clinching.
Push-through joining is a method of joining metal strips without the use of a filler material.
clinching tool usually stamp (s) and die (s).
stamp (s) and die (s) The tapes to be joined are pressed by the punch, similar to the deep drawing under plastic deformation in or against the die.
the bands are connected without the use of rivets form-fitting (and non-positively) with each other.
punching or clinching means in the context of the invention, a clinching without transection and consequently without cutting share.
connection points are produced in the course of the band connection by means of clinching, wherein transversely to the strip running direction spaced a plurality of connection points are generated to form one or more Mattstician #2n. It is advantageous if the tool or tools is employed position-controlled / are.
the invention has for its object to provide a method with which metal strips can connect universally and with high quality in a simple manner.
the invention teaches, in a generic method, that the first strip and / or the second strip are cold-rolled, not annealed metal strip are formed, wherein for the band connection at least 20 connection points per meter of bandwidth are set by clinching.
Elongation at break is the difference between the measured length after fracture and the initial gage length in relation to the initial gage length, with the elongation at break expressed as a percentage. Since the value of the elongation at break is also determined by the ratio of measuring length to sample cross section, the elongation at break is characterized in more detail by a corresponding index, in the present case the breaking elongation A 80 being based on a tensile test with a measuring length of 80 mm of the sample. Preference is given to using metal strips whose breaking elongation A 80 is 2% to 5%, preferably about 3% to 4%. Consequently, according to the invention, a perfect strip connection also succeeds in cold-rolled, non-annealed metal strips.
the metal bands may be z. B. be aluminum or aluminum alloy or copper or copper alloy strips.
the band connection is realized by a plurality of connection points. At least 40 connection points are preferred realized for the respective band connection, preferably at least 80 connection points, more preferably at least 100 connection points. Due to the large number of connection points that create the band connection, it can be accepted that individual clinch points tear down.
the invention is based on the recognition that it is possible to work in the connection of unannealed, cold-rolled metal strips in a boundary region in which individual clinch points may tear.
the measurement of the strip thickness or strip thickness takes place before joining, preferably separately for each of the two strips. Alternatively, it is also within the scope of the invention to measure the total thickness of the superposed bands (before the joining process). It is possible to measure the thickness or the thicknesses in the vicinity or in / on the joining device. Alternatively, however, the measurement may be performed at another location, e.g. B. take place immediately behind the uncoiler.
the strip beginning and the strip end and / or the clinching tool are positioned such that no punch of the joining tool hits one of the strip edges and / or that before or after the joining of the strips in the region of one or both strip edges one or more side punches are introduced.
the invention is based on the recognition that to avoid problems in the course of the passage of the bands through other components of the system perfect clinching points must be generated and that it must be avoided that a clinching is generated in the region of a band edge or is present. Because if z. B. a clinching point is generated in the region of an existing band edge, it can come at such an unclean clinching depending on the degree of coverage of the band edge by the stamp to frays at the band edge. In this area can later break off when passing through the band treatment line particles that z. B. adhere to roles and lead to imprints on the tape. In accordance with the invention, provision is therefore made to avoid creating or maintaining a clinching point in the region of a strip edge.
the side punching may be introduced prior to the joining of the tapes with the proviso that a dependence on the tool geometry and the bandwidth of a tool punch on a band edge is prevented.
the clinching tool remains fixed in the middle of the plant.
the position of the two bands is measured relative to the center of the plant.
the clinching points are arranged in the two connected band ends.
the side punching is done on each side so that no clinching point is punched.
the punching depth per side is dimensioned correspondingly larger, but in turn so that no clinching point is punched.
the bands be oiled before and / or during clinching.
the oiling of the joining partners in the course of clinching is generally known in order to minimize the tool wear during clinching and to maximize the service life.
lubrication for the deep-drawing process during clinching is unfavorable. This is due to the fact that the lubrication reduces the friction of the joining partners or bands and this can have a negative effect on the connection quality or joint strength.
the invention proposes now that only the upper surface of the upper metal strip and the lower surface of the lower metal strip are lubricated.
the bands are connected to each other by tempered clinching. Then it is provided that the metal strips to be joined are heated before and / or during the joining. For this purpose, it is possible to preheat the bands themselves with suitable tempering and then to clinch. Alternatively or additionally, the temperature control can also take place via the clinching tools themselves. For this purpose, it is possible to heat the upper tool and / or lower tool, so that the tape is then heated under contact pressure and then formed. For this purpose, it may be expedient to work with a non-contoured die or a non-contoured counter tool, counter tool and / or stamp are heated.
a heating of the bands via one or both tools it may be appropriate to the bands before clinching or pressing with suitable means, for. B. a clamping device or the like to press against each other. So it is possible to press the bands with a hold-down against the (heated) mating surface, so that it comes to heating of the connection area. Subsequently, the clinching is done with the help of the punch. A contact pressure during heating can also be done with the tools or stamps themselves. In the (first) heating phase then only a fixation of the bands takes place and thereby the heating and in a (second) Clinchphase then the connect.
the moving tool, z. B. the upper tool position adjustable is set, in particular when the stamp must be positioned in a heating phase for the contact preheating on the tape.
the contact pressure (during heating) is band-dependent adjustable.
tempering heating of the metal strips whose formability or their formability is increased, so that the connection process can be optimized. This is particularly advantageous in the connection of brittle materials, since the formability of brittle materials can be improved by tempering. Overall, the tempering may be advantageous for certain materials or material combinations. Cracks can be avoided.
the method according to the invention can be carried out with a device for connecting metal strips.
a device for connecting metal strips is usually characterized by a connection press with press frame, press upper part and press bottom, wherein on the press upper part an upper tool with at least one punch (or die) for the clinching and the lower press part a lower tool with at least one die (or a punch) for the clinching are fixed, wherein the press upper part and / or press lower part for applying a pressing force with one or more drives (against each other) are movable. So it is possible to move the press upper part with the upper tool by means of drives against the fixed lower tool or vice versa.
the drives can be z.
the invention proposes that the upper tool is designed as a multiple tool with a plurality of punches distributed over the bandwidth (or dies) and the lower tool as a multiple tool with multiple distributed over the bandwidth matrices (or punches).
a tool changing device with a plurality of upper tools and a plurality of sub-tools (and consequently several tool sets), which optionally from a working position within the press in a waiting position can be transferred outside the press and vice versa.
the tool changing device With the aid of the tool changing device, it is possible to provide a plurality of clinching tools or tool sets, so that a simple adaptation of the machine to the respective conditions, in particular to different strip thicknesses, can take place. In addition, it is possible to equip the tool changing device with an additional (conventional) punching tool, so that the machine can be converted into a punching device if necessary.
connection points are produced by means of clinching without cutting portion (clinching).
the device has a connection press 2 with press frame 3, press upper part 4 and press lower part 5.
the tape running direction B is in Fig. 4 indicated in Fig. 1 and 3 it is perpendicular to the drawing plane.
an upper tool 6 is fastened with a plurality of punches 8 for clinching.
a lower tool 7 is fixed with a plurality of dies for clinching.
Upper tool 6 with punches 8 and lower tool 7 with 9 dies form a tool set 10a, b, c.
Upper tool 6 and lower tool 7 are each formed as multiple tools, each with a plurality of punches distributed over the bandwidth 8 and 9 dies.
the press upper part 4 for applying the pressing force with the drives 11 against the fixed press base 5 can be moved.
the drives 11 are formed in the embodiments as a hydraulic press cylinder 11, which are connected with their pistons to the movable press upper part 4 and are supported on the fixed upper spar of the press frame 3.
the Fig. 1 and 3 show the press 2 in a split representation each closed in one half and opened in the other half.
the press upper part 4 is guided on guides 3 on the press frame 3.
Fig. 1 and 2 on the one hand and the Fig. 3 to 5 On the other hand, show two embodiments with differently designed tool changing devices 12th
a first embodiment in which the tools 6, 7 are transferred with the tool changing device 12 transversely to the strip running direction B from the working position to the waiting position.
the tool changing device 12 is arranged laterally next to the press 2 in this embodiment. It has a shuttle table 14 with several along the strip running direction B successively arranged tool sets 10a, b, c. If the located in the connection press 2 tool are exchanged, it is transverse to the direction of tape B from the press out on the shuttle table 14 is pulled (or pushed). The shuttle table 14 then moves parallel to the direction of tape travel, z. B. a position, so then another tool can be pushed transversely to the strip running direction B in the press 2 (or pulled) can be.
FIG. 2 It can be seen that in the illustrated embodiment, four different tools or tool sets 10a, b, c, 10 'are arranged in the tool changing device 12. Three tool sets 10a, b, c are provided for the clinching, with which one, two or three rows of connecting points can be set.
the first tool 10a has a series of punches and dies
the second tool set 10b has two rows of punches and dies arranged one behind the other in the direction of travel B
the third tool set 10c has three rows of punches and dies arranged one behind the other in the direction of strip travel, so that optionally one, two or three rows of connecting points can be set with a single press stroke, depending on which tool 10a, b, c is arranged in the press 2.
an additional tool set 10 ' is provided, which is designed as a punching tool 10', so that the press can also be easily converted for a punched connection. It becomes clear that z. B.
each tool set 10a, b, c is connected to each other by forming the tool set 10a, b, c via guides 13.
guides 13 In the exemplary embodiment are guide columns 13, which ensure that upper tool 6 and lower tool 7 are properly moved together with punches and dies in the desired position.
each tool set has a total of four guide columns 13 arranged at the corners. This applies equally to the embodiment according to Fig. 1 and 2 as for the embodiment Fig. 3 and 4 ,
alternating drives are usually provided, for. B. hydraulic drives, which are not shown in detail in the figures.
connection point rows arranged one behind the other in the strip running direction can also be generated at the same time. This makes it possible to produce the entire band connection even with multiple rows of connection points with a single press stroke.
the connection press provides sufficient pressing forces with the hydraulic cylinders 11.
Fig. 6 options can be used individually or in combination, eg. B. in a device after Fig. 1 to 5 Alternatively, however, with differently designed devices.

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
Punching Or Piercing (AREA)
Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
Replacement Of Web Rolls (AREA)
Basic Packing Technique (AREA)
Testing And Monitoring For Control Systems (AREA)
Pressure Welding/Diffusion-Bonding (AREA)
Butt Welding And Welding Of Specific Article (AREA)

EP15180134.7A 2014-11-14 2015-08-07 Procédé de raccordement de bandes métalliques Not-in-force EP3020488B1 (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE102014116713.9A DE102014116713A1 (de)	2014-11-14	2014-11-14	Verfahren zum Verbinden von Metallbändern

Publications (2)

Publication Number	Publication Date
EP3020488A1 true EP3020488A1 (fr)	2016-05-18
EP3020488B1 EP3020488B1 (fr)	2018-03-14

Family

ID=53800861

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP15180134.7A Not-in-force EP3020488B1 (fr)	2014-11-14	2015-08-07	Procédé de raccordement de bandes métalliques

Country Status (10)

Country	Link
US (1)	US20160136717A1 (fr)
EP (1)	EP3020488B1 (fr)
KR (1)	KR20160057975A (fr)
CN (1)	CN105598303B (fr)
BR (1)	BR102015028595A2 (fr)
DE (1)	DE102014116713A1 (fr)
ES (1)	ES2668347T3 (fr)
RU (1)	RU2690736C2 (fr)
TR (1)	TR201807642T4 (fr)
ZA (1)	ZA201508427B (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US11233289B2 (en)	2016-08-01	2022-01-25	Cps Technology Holdings Llc	Weldable aluminum terminal pads of an electrochemical cell
JP7126524B2 (ja)	2018-01-24	2022-08-26	武延本郷	固定装置、固定方法および構造体
KR102048461B1 (ko) *	2019-07-24	2019-11-25	주식회사 엘프시스템	연료전지용 분리판의 제조 설비 및 제조 방법

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FR2691388A1 (fr) *	1992-05-21	1993-11-26	Homax Ag	Nouveau point d'assemblage de flans de tôle par fluage à froid et machine d'outils pour la réalisation d'un tel point d'assemblage.
DE10208304C1 (de) *	2002-02-26	2003-11-20	Fraunhofer Ges Forschung	Verfahren zur Überwachung und gegebenenfalls Steuerung des Fügeprozesses beim Durchsetzfügen
US20060096075A1 (en) *	2004-11-08	2006-05-11	Victor Robinson	Clinching tool, die and method for use thereof
EP1749590A2 (fr)	2005-08-06	2007-02-07	Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh	Procédé d'application d'adhésifs sur une liaison entre deux bandes et applicateur de ruban adhésif
US20070084045A1 (en) *	2005-10-14	2007-04-19	Pei-Chung Wang	Monitoring system for clinching process
US20100083480A1 (en) *	2008-10-06	2010-04-08	Gm Global Technology Operations, Inc.	Method of Friction-Assisted Clinching
EP2202025A1 (fr)	2008-12-29	2010-06-30	Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh	Procédé et dispositif pour connecter des bandes de métal utilisant le soudage pontuel par friction agitation
EP2514538A1 (fr) *	2011-10-07	2012-10-24	Aleris Aluminum Duffel BVBA	Procédé de fixation d'une feuille en alliage d'aluminium
WO2014033037A1 (fr)	2012-09-03	2014-03-06	Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh	Procédé et dispositif pour relier des bandes de métal

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SU1490020A1 (ru) *	1986-12-10	1989-06-30	Предприятие П/Я Р-6491	Устройство дл соединени концов металлической ленты
US5528815A (en) *	1990-04-03	1996-06-25	Webb; Edward L. T.	Clinching tool for sheet metal joining
JPH04309472A (ja) *	1991-04-09	1992-11-02	Nippon Steel Corp	薄鋼帯の溶接接続方法
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CN103212643B (zh) *	2013-04-24	2015-04-08	莱芜钢铁集团有限公司	冷轧带钢用坯料无头酸洗的带头压合系统及其工作方法
DE102014116710A1 (de) *	2014-11-14	2016-05-19	Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh	Verfahren zum Verbinden von Metallbändern

2014
- 2014-11-14 DE DE102014116713.9A patent/DE102014116713A1/de not_active Withdrawn
2015
- 2015-08-07 EP EP15180134.7A patent/EP3020488B1/fr not_active Not-in-force
- 2015-08-07 ES ES15180134.7T patent/ES2668347T3/es active Active
- 2015-08-07 TR TR2018/07642T patent/TR201807642T4/tr unknown
- 2015-09-11 US US14/851,496 patent/US20160136717A1/en not_active Abandoned
- 2015-10-07 RU RU2015142784A patent/RU2690736C2/ru not_active IP Right Cessation
- 2015-10-20 KR KR1020150146247A patent/KR20160057975A/ko not_active Withdrawn
- 2015-11-13 BR BR102015028595A patent/BR102015028595A2/pt not_active Application Discontinuation
- 2015-11-13 CN CN201510777405.0A patent/CN105598303B/zh not_active Expired - Fee Related
- 2015-11-13 ZA ZA2015/08427A patent/ZA201508427B/en unknown

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2691388A1 (fr) *	1992-05-21	1993-11-26	Homax Ag	Nouveau point d'assemblage de flans de tôle par fluage à froid et machine d'outils pour la réalisation d'un tel point d'assemblage.
DE10208304C1 (de) *	2002-02-26	2003-11-20	Fraunhofer Ges Forschung	Verfahren zur Überwachung und gegebenenfalls Steuerung des Fügeprozesses beim Durchsetzfügen
US20060096075A1 (en) *	2004-11-08	2006-05-11	Victor Robinson	Clinching tool, die and method for use thereof
EP1749590A2 (fr)	2005-08-06	2007-02-07	Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh	Procédé d'application d'adhésifs sur une liaison entre deux bandes et applicateur de ruban adhésif
US20070084045A1 (en) *	2005-10-14	2007-04-19	Pei-Chung Wang	Monitoring system for clinching process
US20100083480A1 (en) *	2008-10-06	2010-04-08	Gm Global Technology Operations, Inc.	Method of Friction-Assisted Clinching
EP2202025A1 (fr)	2008-12-29	2010-06-30	Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh	Procédé et dispositif pour connecter des bandes de métal utilisant le soudage pontuel par friction agitation
EP2514538A1 (fr) *	2011-10-07	2012-10-24	Aleris Aluminum Duffel BVBA	Procédé de fixation d'une feuille en alliage d'aluminium
WO2014033037A1 (fr)	2012-09-03	2014-03-06	Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh	Procédé et dispositif pour relier des bandes de métal

Also Published As

Publication number	Publication date
EP3020488B1 (fr)	2018-03-14
CN105598303B (zh)	2019-08-20
BR102015028595A2 (pt)	2016-05-31
TR201807642T4 (tr)	2018-06-21
KR20160057975A (ko)	2016-05-24
RU2690736C2 (ru)	2019-06-05
RU2015142784A (ru)	2017-04-10
RU2015142784A3 (fr)	2019-02-04
CN105598303A (zh)	2016-05-25
ES2668347T3 (es)	2018-05-17
US20160136717A1 (en)	2016-05-19
DE102014116713A1 (de)	2016-05-19
ZA201508427B (en)	2016-09-28

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