CH593757A5 - Welding coated metal sheets using laser beam - so coating need not be removed before welding, esp. in mfg. cans for foodstuffs - Google Patents

Welding coated metal sheets using laser beam - so coating need not be removed before welding, esp. in mfg. cans for foodstuffs

Info

Publication number
CH593757A5
CH593757A5 CH1453275A CH1453275A CH593757A5 CH 593757 A5 CH593757 A5 CH 593757A5 CH 1453275 A CH1453275 A CH 1453275A CH 1453275 A CH1453275 A CH 1453275A CH 593757 A5 CH593757 A5 CH 593757A5
Authority
CH
Switzerland
Prior art keywords
welding
coating
coated
metal
welded
Prior art date
Application number
CH1453275A
Other languages
German (de)
Original Assignee
Hoffmann Ag Geb
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 Hoffmann Ag Geb filed Critical Hoffmann Ag Geb
Priority to CH1453275A priority Critical patent/CH593757A5/en
Publication of CH593757A5 publication Critical patent/CH593757A5/en

Links

Classifications

    • 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
    • B23K26/20—Bonding
    • B23K26/32—Bonding taking account of the properties of the material involved
    • 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
    • B23K2101/00—Articles made by soldering, welding or cutting
    • B23K2101/34—Coated articles, e.g. plated or painted; Surface treated articles
    • B23K2101/35—Surface treated articles
    • 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
    • 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
    • B23K2103/08—Non-ferrous metals or alloys
    • 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
    • B23K2103/08—Non-ferrous metals or alloys
    • B23K2103/10—Aluminium or alloys thereof
    • 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
    • B23K2103/08—Non-ferrous metals or alloys
    • B23K2103/12—Copper or alloys thereof
    • 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
    • B23K2103/50—Inorganic material, e.g. metals, not provided for in B23K2103/02 – B23K2103/26
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/15—Details of package parts other than the semiconductor or other solid state devices to be connected
    • H01L2924/161—Cap
    • H01L2924/1615—Shape
    • H01L2924/16152—Cap comprising a cavity for hosting the device, e.g. U-shaped cap
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/30—Technical effects
    • H01L2924/35—Mechanical effects
    • H01L2924/351—Thermal stress
    • H01L2924/3511—Warping

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Laser Beam Processing (AREA)
  • Rigid Containers With Two Or More Constituent Elements (AREA)

Abstract

Coated metal sheet or foil components are welded together using a laser beam. The parts are pref. butt welded, and the coating is pref. not removed prior to welding, the welded seam obtd. may be coated. A CO2 laser is pref. employed to make the weld. The coated metal sheet or foil is esp. used to mfr. containers, esp. cans for holding foodstuffs or aerosols, conical boilers, or cylindrical bottles. A suitable material for the cans is tin-free steel which has been chromium plated but other sheet or foil may be used, e.g. steel Al or Cu base alloys with a coating of lacquer, plastic, electroplated Cr, Cu or Sn, or hot dip coatings, e.g. of Sn. The sheet is pref. 0.18-0.3 mm thick. The coatings are not removed because the heat input is very small and the seam is only ca. 1 mm wide. Only a very small zone need be coated after welding and this operation can be carried out without forming defective zones.

Description

       

  
 



   Die vorliegende Erfindung betrifft ein Verfahren, um beschichtete Blech- oder Folienteile aus Metall miteinander zu verschweissen.



   Es ist bekannt, zur Vorbereitung einer Schweissung Metallbleche oder -Folien an den Schweissstellen blank zu machen, wobei die Bleche oder Folien bedeckende Schichten, wie Lackschichten, galvanische Metallschichten oder dgl., z. B. durch Abkratzen oderBürsten, abgetragenwerden, um   einSchweissen    zu ermöglichen. Nach dem Schweissen müssen die freigegebenen Stellen bzw. Schweissstellen wieder abgedeckt, d.h.



  beschichtet werden.



   Nachteilig ist hierbei, dass die Metallbleche überlappend miteinander verschweisst werden müssen und dass die nachträgliche Abdeckung der unbeschichteten Stelle fehlerhaft wird.



   Gründe der fehlerhaften Abdeckung sind die im Bereich der Schweissstelle liegende Kante des Bleches oder der Folie und die Beschädigung der Beschichtung in einem relativ breiten Grenzbereich zwischen freigelegtem Teil und beschichtetem Teil.



   Zweck der Erfindung ist, die genannten Nachteile zu vermeiden. Zu diesem Zweck ist das eingangs erwähnte Verfahren dadurch gekennzeichnet, dass die Blech- oder Folienteile mittels Laserstrahl verschweisst werden.



   Mit dem erfindungsgemässen Verfahren können beschichtete Stahl- oder Aluminiumbleche überlappend oder stumpf miteinander verschweisst werden, um Dosen, insbesondere Konserven- oder Aerosoldosen herzustellen.



   Mit dem erfindungsgemässen Verfahren muss die Beschichtung vor dem Schweissen nicht weggenommen werden. Die Wärmezufuhr ist gering. Die Wärme wirkt nur auf einer geringen Breite. Man erhält eine minimale Nahtbreite von ca.



  1 mm. Es gibt keine Zone, in welcher die Beschichtung, wie Lack- oder Kunststoffüberzug, noch vorhanden, aber in der Qualität schlecht ist. Der Übergang zwischen Zone mit tadelloser Beschichtung und   Kernzone,    in welcher die Beschichtung, wie Lack oder Kunststoffüberzug beim Schweissvorgang verbrennt oder verdampft, ist relativ scharf. Zudem hat die Kernzone eine der minimalen Nahtbreite entsprechende kleine Breite, so dass nur ein schmaler Streifen nach dem Schweissen überdeckt werden muss. Die nachträgliche Überdeckung der Schweissstelle kann damit tadellos erfolgen.



   Überdies ist es nunmehr möglich, beschichtete Blech- oder Folienteile stumpf aneinander zu schweissen. Damit werden die Beschichtungs- bzw. Korrosionsprobleme weiter reduziert.



   Als Material für die miteinander zu verschweissenden Bleche kommt z. B. TFS-Stahl (tin free steel) in Frage, das einen Überzug aus Chrom aufweist. Es können aber auch andere Überzüge aus einer oder mehreren Schichten aus verschiedenen Materialien, wie Metall, Lacke oder Kunststoffe in Frage kommen.



   Das Grundmaterial kann z. B. Stahl, Aluminium oder ein Buntmetall sein. Als Überzüge kommen z. B. galvanische Überzüge, wie Verchromung, Verkupferung oder Verzinnung oder Feuerüberzüge, wie Feuerverzinnung, in Frage. In Verbindung mit den obigen Überzügen können noch Lackoder Kunststoffüberzüge hinzukommen.



   Vorzugsweise haben die in Frage kommenden Bleche eine Dicke von 0,18 bis 0,30 mm. Für die Durchführung des Schweissvorganges wird bevorzugterweise ein CO2-Laser verwendet, der mehrere in Serie geschaltete Laserelemente aufweist.



   Das erfindungsgemässe Verfahren eignet sich zur Bildung der Schweissnähte bei der Herstellung von Dosen, konischen Kesseln, zylindrischen Flaschen, sowie grossen Gebinden aller Art aus beschichtetem Blech.



   PATENTANSPRUCH 1
Verfahren, um beschichtete Blech- oder Folienteile aus
Metall miteinander zu verschweissen, dadurch gekennzeichnet, dass die Blech- oder Folienteile mittels Laserstrahl verschweisst werden.



   UNTERANSPRÜCHE
1. Verfahren nach Patentanspruch   1,    dadurch gekennzeich net, dass die Teile stumpf aneinander geschweisst werden.



   2. Verfahren nach Patentanspruch I, dadurch gekennzeich net, dass die Beschichtung vor dem Verschweissen nicht entfernt wird.



   3. Verfahren nach Patentanspruch I oder Unteranspruch 2, dadurch gekennzeichnet, dass nach dem Schweissen die Schweissnaht beschichtet wird.



   4. Verfahren nach Patentanspruch I, dadurch gekennzeich net, dass zur Erzeugung des Laserstrahls ein CO2-Laser verwendet wird.



     PATENTANSPRUCH II   
Verwendung des Verfahrens nach Patentanspruch I, für die Herstellung von Behältern aus beschichtetem Metallblech oder -Folien.



   UNTERANSPRÜCHE
5. Verwendung nach Patentanspruch II für die Herstellung von Konservendosen.



   6. Verwendung nach Patentanspruch II für die Herstellung von Aerosoldosen.



   7. Verwendung nach Patentanspruch II für die Herstellung von konischen Kesseln.



   8. Verwendung nach Patentanspruch II für die Herstellung von zylindrischen Flaschen.

**WARNUNG** Ende DESC Feld konnte Anfang CLMS uberlappen**.



   



  
 



   The present invention relates to a method for welding coated sheet metal or foil parts made of metal to one another.



   It is known to make metal sheets or foils bare at the welding points in preparation for a weld, with layers covering the sheets or foils, such as lacquer layers, galvanic metal layers or the like. By scraping or brushing, to enable welding. After welding, the released points or welding points must be covered again, i.e.



  be coated.



   The disadvantage here is that the metal sheets have to be welded to one another in an overlapping manner and that the subsequent covering of the uncoated area is defective.



   The reasons for the defective covering are the edge of the sheet or the foil lying in the area of the welding point and the damage to the coating in a relatively wide border area between the exposed part and the coated part.



   The purpose of the invention is to avoid the disadvantages mentioned. For this purpose, the method mentioned at the beginning is characterized in that the sheet metal or foil parts are welded by means of a laser beam.



   With the method according to the invention, coated steel or aluminum sheets can be welded to one another in an overlapping or butt joint manner in order to produce cans, in particular canned or aerosol cans.



   With the method according to the invention, the coating does not have to be removed before welding. The heat supply is low. The heat only acts over a small area. A minimum seam width of approx.



  1 mm. There is no zone in which the coating, such as paint or plastic coating, is still present, but is of poor quality. The transition between the zone with flawless coating and the core zone, in which the coating such as paint or plastic coating burns or evaporates during the welding process, is relatively sharp. In addition, the core zone has a small width corresponding to the minimum seam width, so that only a narrow strip has to be covered after welding. The subsequent covering of the welding point can thus be carried out perfectly.



   In addition, it is now possible to butt-weld coated sheet metal or foil parts to one another. This further reduces the coating and corrosion problems.



   As a material for the sheets to be welded together, for. B. TFS steel (tin free steel) in question, which has a coating of chrome. However, other coatings composed of one or more layers of different materials, such as metal, lacquer or plastics, can also be used.



   The base material can e.g. B. steel, aluminum or a non-ferrous metal. As coatings come z. B. galvanic coatings, such as chrome plating, copper plating or tinning or fire coatings, such as hot-dip tinning, are in question. In connection with the above coatings, lacquer or plastic coatings can also be added.



   The sheets in question preferably have a thickness of 0.18 to 0.30 mm. A CO2 laser is preferably used to carry out the welding process, which has several laser elements connected in series.



   The method according to the invention is suitable for forming the weld seams in the production of cans, conical kettles, cylindrical bottles, and large containers of all kinds made of coated sheet metal.



   PATENT CLAIM 1
Process to make coated sheet metal or foil parts
To weld metal together, characterized in that the sheet metal or foil parts are welded by means of a laser beam.



   SUBCLAIMS
1. The method according to claim 1, characterized in that the parts are butt welded to one another.



   2. The method according to claim I, characterized in that the coating is not removed before welding.



   3. The method according to claim 1 or dependent claim 2, characterized in that the weld seam is coated after welding.



   4. The method according to claim I, characterized in that a CO2 laser is used to generate the laser beam.



     PATENT CLAIM II
Use of the method according to claim 1 for the production of containers from coated metal sheet or foil.



   SUBCLAIMS
5. Use according to claim II for the production of tins.



   6. Use according to claim II for the production of aerosol cans.



   7. Use according to claim II for the production of conical vessels.



   8. Use according to claim II for the production of cylindrical bottles.

** WARNING ** End of DESC field could overlap beginning of CLMS **.

Claims (1)

**WARNUNG** Anfang CLMS Feld konnte Ende DESC uberlappen **. ** WARNING ** Beginning of CLMS field could overlap end of DESC **. Die vorliegende Erfindung betrifft ein Verfahren, um beschichtete Blech- oder Folienteile aus Metall miteinander zu verschweissen. The present invention relates to a method for welding coated sheet metal or foil parts made of metal to one another. Es ist bekannt, zur Vorbereitung einer Schweissung Metallbleche oder -Folien an den Schweissstellen blank zu machen, wobei die Bleche oder Folien bedeckende Schichten, wie Lackschichten, galvanische Metallschichten oder dgl., z. B. durch Abkratzen oderBürsten, abgetragenwerden, um einSchweissen zu ermöglichen. Nach dem Schweissen müssen die freigegebenen Stellen bzw. Schweissstellen wieder abgedeckt, d.h. It is known to make metal sheets or foils bare at the welding points in preparation for a weld, with layers covering the sheets or foils, such as lacquer layers, galvanic metal layers or the like. By scraping or brushing, to enable welding. After welding, the released points or welding points must be covered again, i.e. beschichtet werden. be coated. Nachteilig ist hierbei, dass die Metallbleche überlappend miteinander verschweisst werden müssen und dass die nachträgliche Abdeckung der unbeschichteten Stelle fehlerhaft wird. The disadvantage here is that the metal sheets have to be welded to one another in an overlapping manner and that the subsequent covering of the uncoated area is defective. Gründe der fehlerhaften Abdeckung sind die im Bereich der Schweissstelle liegende Kante des Bleches oder der Folie und die Beschädigung der Beschichtung in einem relativ breiten Grenzbereich zwischen freigelegtem Teil und beschichtetem Teil. The reasons for the defective covering are the edge of the sheet metal or the foil lying in the area of the welding point and the damage to the coating in a relatively wide border area between the exposed part and the coated part. Zweck der Erfindung ist, die genannten Nachteile zu vermeiden. Zu diesem Zweck ist das eingangs erwähnte Verfahren dadurch gekennzeichnet, dass die Blech- oder Folienteile mittels Laserstrahl verschweisst werden. The purpose of the invention is to avoid the disadvantages mentioned. For this purpose, the method mentioned at the beginning is characterized in that the sheet metal or foil parts are welded by means of a laser beam. Mit dem erfindungsgemässen Verfahren können beschichtete Stahl- oder Aluminiumbleche überlappend oder stumpf miteinander verschweisst werden, um Dosen, insbesondere Konserven- oder Aerosoldosen herzustellen. With the method according to the invention, coated steel or aluminum sheets can be welded to one another in an overlapping or butt joint manner in order to produce cans, in particular canned or aerosol cans. Mit dem erfindungsgemässen Verfahren muss die Beschichtung vor dem Schweissen nicht weggenommen werden. Die Wärmezufuhr ist gering. Die Wärme wirkt nur auf einer geringen Breite. Man erhält eine minimale Nahtbreite von ca. With the method according to the invention, the coating does not have to be removed before welding. The heat supply is low. The heat only acts over a small area. A minimum seam width of approx. 1 mm. Es gibt keine Zone, in welcher die Beschichtung, wie Lack- oder Kunststoffüberzug, noch vorhanden, aber in der Qualität schlecht ist. Der Übergang zwischen Zone mit tadelloser Beschichtung und Kernzone, in welcher die Beschichtung, wie Lack oder Kunststoffüberzug beim Schweissvorgang verbrennt oder verdampft, ist relativ scharf. Zudem hat die Kernzone eine der minimalen Nahtbreite entsprechende kleine Breite, so dass nur ein schmaler Streifen nach dem Schweissen überdeckt werden muss. Die nachträgliche Überdeckung der Schweissstelle kann damit tadellos erfolgen. 1 mm. There is no zone in which the coating, such as paint or plastic coating, is still present, but is of poor quality. The transition between the zone with flawless coating and the core zone, in which the coating such as paint or plastic coating burns or evaporates during the welding process, is relatively sharp. In addition, the core zone has a small width corresponding to the minimum seam width, so that only a narrow strip has to be covered after welding. The subsequent covering of the welding point can thus be carried out perfectly. Überdies ist es nunmehr möglich, beschichtete Blech- oder Folienteile stumpf aneinander zu schweissen. Damit werden die Beschichtungs- bzw. Korrosionsprobleme weiter reduziert. In addition, it is now possible to butt-weld coated sheet metal or foil parts to one another. This further reduces the coating and corrosion problems. Als Material für die miteinander zu verschweissenden Bleche kommt z. B. TFS-Stahl (tin free steel) in Frage, das einen Überzug aus Chrom aufweist. Es können aber auch andere Überzüge aus einer oder mehreren Schichten aus verschiedenen Materialien, wie Metall, Lacke oder Kunststoffe in Frage kommen. As a material for the sheets to be welded together, for. B. TFS steel (tin free steel) in question, which has a coating of chrome. However, other coatings composed of one or more layers of different materials, such as metal, lacquer or plastics, can also be used. Das Grundmaterial kann z. B. Stahl, Aluminium oder ein Buntmetall sein. Als Überzüge kommen z. B. galvanische Überzüge, wie Verchromung, Verkupferung oder Verzinnung oder Feuerüberzüge, wie Feuerverzinnung, in Frage. In Verbindung mit den obigen Überzügen können noch Lackoder Kunststoffüberzüge hinzukommen. The base material can e.g. B. steel, aluminum or a non-ferrous metal. As coatings come z. B. galvanic coatings, such as chrome plating, copper plating or tinning or fire coatings, such as hot-dip tinning, are in question. In connection with the above coatings, lacquer or plastic coatings can also be added. Vorzugsweise haben die in Frage kommenden Bleche eine Dicke von 0,18 bis 0,30 mm. Für die Durchführung des Schweissvorganges wird bevorzugterweise ein CO2-Laser verwendet, der mehrere in Serie geschaltete Laserelemente aufweist. The sheets in question preferably have a thickness of 0.18 to 0.30 mm. A CO2 laser is preferably used to carry out the welding process, which has several laser elements connected in series. Das erfindungsgemässe Verfahren eignet sich zur Bildung der Schweissnähte bei der Herstellung von Dosen, konischen Kesseln, zylindrischen Flaschen, sowie grossen Gebinden aller Art aus beschichtetem Blech. The method according to the invention is suitable for forming the weld seams in the production of cans, conical kettles, cylindrical bottles, and large containers of all kinds made of coated sheet metal. PATENTANSPRUCH 1 Verfahren, um beschichtete Blech- oder Folienteile aus Metall miteinander zu verschweissen, dadurch gekennzeichnet, dass die Blech- oder Folienteile mittels Laserstrahl verschweisst werden. PATENT CLAIM 1 Process to make coated sheet metal or foil parts To weld metal together, characterized in that the sheet metal or foil parts are welded by means of a laser beam. UNTERANSPRÜCHE 1. Verfahren nach Patentanspruch 1, dadurch gekennzeich net, dass die Teile stumpf aneinander geschweisst werden. SUBCLAIMS 1. The method according to claim 1, characterized in that the parts are butt welded to one another. 2. Verfahren nach Patentanspruch I, dadurch gekennzeich net, dass die Beschichtung vor dem Verschweissen nicht entfernt wird. 2. The method according to claim I, characterized in that the coating is not removed before welding. 3. Verfahren nach Patentanspruch I oder Unteranspruch 2, dadurch gekennzeichnet, dass nach dem Schweissen die Schweissnaht beschichtet wird. 3. The method according to claim 1 or dependent claim 2, characterized in that the weld seam is coated after welding. 4. Verfahren nach Patentanspruch I, dadurch gekennzeich net, dass zur Erzeugung des Laserstrahls ein CO2-Laser verwendet wird. 4. The method according to claim I, characterized in that a CO2 laser is used to generate the laser beam. PATENTANSPRUCH II Verwendung des Verfahrens nach Patentanspruch I, für die Herstellung von Behältern aus beschichtetem Metallblech oder -Folien. PATENT CLAIM II Use of the method according to claim 1 for the production of containers from coated metal sheet or foil. UNTERANSPRÜCHE 5. Verwendung nach Patentanspruch II für die Herstellung von Konservendosen. SUBCLAIMS 5. Use according to claim II for the production of tins. 6. Verwendung nach Patentanspruch II für die Herstellung von Aerosoldosen. 6. Use according to claim II for the production of aerosol cans. 7. Verwendung nach Patentanspruch II für die Herstellung von konischen Kesseln. 7. Use according to claim II for the production of conical vessels. 8. Verwendung nach Patentanspruch II für die Herstellung von zylindrischen Flaschen. 8. Use according to claim II for the production of cylindrical bottles.
CH1453275A 1975-11-10 1975-11-10 Welding coated metal sheets using laser beam - so coating need not be removed before welding, esp. in mfg. cans for foodstuffs CH593757A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CH1453275A CH593757A5 (en) 1975-11-10 1975-11-10 Welding coated metal sheets using laser beam - so coating need not be removed before welding, esp. in mfg. cans for foodstuffs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1453275A CH593757A5 (en) 1975-11-10 1975-11-10 Welding coated metal sheets using laser beam - so coating need not be removed before welding, esp. in mfg. cans for foodstuffs

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CH593757A5 true CH593757A5 (en) 1977-12-15

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Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4485935A (en) * 1982-12-08 1984-12-04 Stoffel Technologies, Inc. Easy-open structure for containers and method of forming the same
EP0143450A2 (en) * 1983-11-28 1985-06-05 Elpatronic Ag Method and apparatus for pulsed high energy density welding
EP0199589A1 (en) * 1985-04-22 1986-10-29 Westinghouse Electric Corporation Improvement in depositing metal powders on a substrate using laser
EP0200098A2 (en) * 1985-04-22 1986-11-05 Karl Huber Verpackungswerke GmbH + Co. Process for the manufacture of containers made of thin sheet metal, such as fine and/or very fine thin sheet iron
US4642446A (en) * 1985-10-03 1987-02-10 General Motors Corporation Laser welding of galvanized steel
US4682002A (en) * 1984-09-20 1987-07-21 Prima Progetti S.P.A. Method of laser welding sheet metal protected by low-vaporizing-temperature materials
US4697061A (en) * 1985-09-19 1987-09-29 Siemens Aktiengesellschaft Method for welding by means of laser light
FR2598923A1 (en) * 1986-05-21 1987-11-27 Total Feuerschutz Gmbh HAND EXTINGUISHER AND METHOD OF MAKING SAME
US4745257A (en) * 1984-04-02 1988-05-17 Mitsubishi Denki Kabushiki Kaisha Laser welding method
US4751777A (en) * 1986-09-02 1988-06-21 Jpi Aquisition, Inc. Method for making a full round bushing
US4840304A (en) * 1986-12-27 1989-06-20 Toyo Seikan Kaisha Ltd. Butt-welded cans and process for manufacturing the same
DE4328515A1 (en) * 1993-03-02 1994-09-08 Wicona Bausysteme Gmbh Method and device for fabricating a welded structure
DE4328516A1 (en) * 1993-03-02 1994-09-08 Wicona Bausysteme Gmbh Method and device for producing a butt joint between two sectional bars of metal, in particular of aluminium or an aluminium alloy
DE4404492A1 (en) * 1993-12-06 1995-06-14 Becker Plastics Gmbh Multilayer composite tube for hot water, sanitary applications etc.
US5591360A (en) * 1995-04-12 1997-01-07 The Twentyfirst Century Corporation Method of butt welding
US5595670A (en) * 1995-04-17 1997-01-21 The Twentyfirst Century Corporation Method of high speed high power welding
US5603853A (en) * 1995-02-28 1997-02-18 The Twentyfirst Century Corporation Method of high energy density radiation beam lap welding
CH694013A5 (en) * 1999-12-08 2004-06-15 Willi Fretz Tin can body, is formed by shaping sheet metal, laminating it on both sides, and butt welding the sheet metal edges together
WO2013050855A3 (en) * 2011-10-06 2013-07-11 Lincoln Global Inc. Apparatus for and method of laser cleaning of coated materials prior to welding

Cited By (25)

* Cited by examiner, † Cited by third party
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US4485935A (en) * 1982-12-08 1984-12-04 Stoffel Technologies, Inc. Easy-open structure for containers and method of forming the same
EP0143450A2 (en) * 1983-11-28 1985-06-05 Elpatronic Ag Method and apparatus for pulsed high energy density welding
US4574176A (en) * 1983-11-28 1986-03-04 Sws Incorporated Method and apparatus for pulsed high energy density welding
EP0143450A3 (en) * 1983-11-28 1988-01-13 Elpatronic Ag Method and apparatus for pulsed high energy density welding
US4745257A (en) * 1984-04-02 1988-05-17 Mitsubishi Denki Kabushiki Kaisha Laser welding method
US4682002A (en) * 1984-09-20 1987-07-21 Prima Progetti S.P.A. Method of laser welding sheet metal protected by low-vaporizing-temperature materials
EP0199589A1 (en) * 1985-04-22 1986-10-29 Westinghouse Electric Corporation Improvement in depositing metal powders on a substrate using laser
EP0200098A2 (en) * 1985-04-22 1986-11-05 Karl Huber Verpackungswerke GmbH + Co. Process for the manufacture of containers made of thin sheet metal, such as fine and/or very fine thin sheet iron
EP0200098A3 (en) * 1985-04-22 1987-08-12 Karl Huber Verpackungswerke GmbH + Co. Process for the manufacture of containers made of thin sheet metal, such as fine and/or very fine thin sheet iron
US4697061A (en) * 1985-09-19 1987-09-29 Siemens Aktiengesellschaft Method for welding by means of laser light
US4642446A (en) * 1985-10-03 1987-02-10 General Motors Corporation Laser welding of galvanized steel
FR2598923A1 (en) * 1986-05-21 1987-11-27 Total Feuerschutz Gmbh HAND EXTINGUISHER AND METHOD OF MAKING SAME
US4751777A (en) * 1986-09-02 1988-06-21 Jpi Aquisition, Inc. Method for making a full round bushing
US4840304A (en) * 1986-12-27 1989-06-20 Toyo Seikan Kaisha Ltd. Butt-welded cans and process for manufacturing the same
DE4328515A1 (en) * 1993-03-02 1994-09-08 Wicona Bausysteme Gmbh Method and device for fabricating a welded structure
DE4328516A1 (en) * 1993-03-02 1994-09-08 Wicona Bausysteme Gmbh Method and device for producing a butt joint between two sectional bars of metal, in particular of aluminium or an aluminium alloy
DE4404492A1 (en) * 1993-12-06 1995-06-14 Becker Plastics Gmbh Multilayer composite tube for hot water, sanitary applications etc.
DE4404492C2 (en) * 1993-12-06 2003-04-24 Becker Plastics Gmbh Process for the production of a multilayer composite pipe
US5603853A (en) * 1995-02-28 1997-02-18 The Twentyfirst Century Corporation Method of high energy density radiation beam lap welding
US5591360A (en) * 1995-04-12 1997-01-07 The Twentyfirst Century Corporation Method of butt welding
US5595670A (en) * 1995-04-17 1997-01-21 The Twentyfirst Century Corporation Method of high speed high power welding
CH694013A5 (en) * 1999-12-08 2004-06-15 Willi Fretz Tin can body, is formed by shaping sheet metal, laminating it on both sides, and butt welding the sheet metal edges together
WO2013050855A3 (en) * 2011-10-06 2013-07-11 Lincoln Global Inc. Apparatus for and method of laser cleaning of coated materials prior to welding
US8766140B2 (en) 2011-10-06 2014-07-01 Lincoln Global, Inc. Apparatus and method for laser cleaning of coated materials prior to welding
US9457432B2 (en) 2011-10-06 2016-10-04 Lincoln Global, Inc. Apparatus and method for laser cleaning of coated materials prior to welding

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