CH402518A - Method for the permanent connection of sheet and strip-shaped materials and sheet metal parts connected to one another according to this method and application of the method - Google Patents
Method for the permanent connection of sheet and strip-shaped materials and sheet metal parts connected to one another according to this method and application of the methodInfo
- Publication number
- CH402518A CH402518A CH731562A CH731562A CH402518A CH 402518 A CH402518 A CH 402518A CH 731562 A CH731562 A CH 731562A CH 731562 A CH731562 A CH 731562A CH 402518 A CH402518 A CH 402518A
- Authority
- CH
- Switzerland
- Prior art keywords
- beads
- connection point
- sheet
- recesses
- application
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 24
- 239000000463 material Substances 0.000 title claims description 16
- 229910052751 metal Inorganic materials 0.000 title description 9
- 239000002184 metal Substances 0.000 title description 9
- 239000011324 bead Substances 0.000 claims description 11
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 238000005096 rolling process Methods 0.000 claims description 2
- 230000006835 compression Effects 0.000 claims 2
- 238000007906 compression Methods 0.000 claims 2
- 108090000623 proteins and genes Proteins 0.000 claims 1
- 238000005304 joining Methods 0.000 description 5
- 210000002105 tongue Anatomy 0.000 description 5
- 238000003466 welding Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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
-
- 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
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B17/00—Connecting constructional elements or machine parts by a part of or on one member entering a hole in the other and involving plastic deformation
- F16B17/008—Connecting constructional elements or machine parts by a part of or on one member entering a hole in the other and involving plastic deformation of sheets or plates mutually
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Description
Verfahren zum unlösbaren Verbinden von tafel- und bandförmigen Materialien und nach diesem Verfahren miteinander verbundenen Blechteilen sowie Anwendung des Verfahrens Die vorliegende Erfindung betrifft ein Verfahren zum unlösbaren Verbinden von verformbaren tafel- und bandförmigen Materialien.
Gewöhnlich werden Blechteile durch Nieten oder Bördeln miteinander verbunden. Sowohl Nieten wie Bördeln weisen den Nachteil auf, dass keine glatte Materialoberfläche an der Verbindungsstelle erreicht wird. Das Verbinden von Blechrändern durch Bör- deln ist ausserdem bei spröden Werkstoffen wie Stahl, der hochlegiert ist oder hohen Kohlenstoffgehalt hat, sowie bei gewissen Aluminiumlegierungen nicht mög lich. Ebenso lassen sich relativ dicke Bänder oder Bleche nicht durch Bördeln verbinden.
Es sind noch weitere Verfahren zum Verbinden von Blechteilen bekannt. So wurde z. B. vorgeschlagen, durch Ein schnitte in die zu verbindenden Blechteile kongruente Zungen zu bilden und diese Zungen der beiden Blech partien in die durch Abbiegen der Zungen des Gegen stückes gebildeten Schlitze zu pressen. Dieses Ver fahren hat jedoch den Nachteil, dass die Festigkeit der durch Zungen gebildeten Nähte stets wesentlich kleiner als die Festigkeit des Bleches ist.
Ausserdem stellt das Einfügen der Zungen in die Schlitze eine relativ komplizierte Arbeit dar. In vielen Fällen ist es auch noch notwendig, der so gebildeten Naht eine Nachbehandlung angedeihen zu lassen, um diese Naht wasserdicht zu machen.
Demgegenüber ist das erfindungsgemässe Ver fahren dadurch gekennzeichnet, dass an beiden zu verbindenden Materialpartien an der Verbindungs stelle .Aussparungen und Wülste gebildet werden, und dass bei nachfolgendem Zusammenpressen der Verbindungsstelle .die Wülste der beiden Material partien so verformt werden, dass ;sie schwalben- schwanzartig ineinandergreifen und eine unlösbare Verbindung bilden.
Die nach dem Verfahren miteinander verbun denen Materialien sind dadurch gekennzeichnet, dass sie eine Verbindungsnaht aufweisen, die aus schwal- benschwanzförmig ineinandergreifenden Wülsten ge bildet wird. Es ergibt sich somit eine glatte Verbindung der beiden Materialien, die ausserdem eine hohe Festig keit aufweist.
Diese Art von Verbindung lässt sich sehr rationell bewerkstelligen und bedarf kaum irgendwelcher Nachkontrollen, wie dies beispielsweise bei Schweiss verbindungen nötig ist.
Die Erfindung betrifft ferner die Anwendung des Verfahrens zur Herstellung von Spiralröhren. An hand der Zeichnung wird eine Ausführungsform des erfindungsgemässen Verfahrens beschrieben.
Fig. 1 zeigt die beiden zu verbindenden Teile. Fig. 2 zeigt die beiden Teile von Fig. 1 im ver bundenen Zustand.
Die beiden zu verbindenden Blechteile 1 und 2 von Fig. 1 weisen dasselbe Profil auf. Der Nase 3 am einen Blechteil entspricht die Aussparung 4 am andern Teil. Dasselbe trifft in bezug auf die Wülste 5 und 6 und, die Aussparung 7 zu. Werden nun die beiden Teile 1 und 2 zusammengepresst, z. B. durch Walzen, Pressen oder Hämmern, so verformen sich die Wülste 3, 5 und 6 und greifen schwalben- schwanzförmig ineinander ein. Dadurch wird eine Verbindung von hoher Festigkeit geschaffen.
Sie weist keine Wülste auf und ist zudem völlig dicht und daher vorzüglich für die Herstellung von Rohren, insbesondere Spiralrohren, geeignet. Spiralrohre können mit diesem Verfahren bei spielsweise aus gezogenen Aluminiumbändern auf einer Spiralrohrwickelmaschine hergestellt werden, wie sie bereits zur Fabrikation von geschweissten Rohren verwendet werden. Selbstverständlich ist in einem solchen Fall eine Schweissapparatur überflüs sig, und es ist auch keine Prüfung der Naht not wendig.
Eine mechanische Verformungsoperation lässt ,sich nämlich weitaus besser und zuverlässiger steuern als eine Schweissoperation.
Method for the permanent joining of sheet-like and strip-shaped materials and sheet metal parts joined to one another according to this method and application of the method The present invention relates to a method for the permanent joining of deformable sheet-like and strip-shaped materials.
Sheet metal parts are usually connected to one another by riveting or flanging. Both rivets and flanges have the disadvantage that a smooth material surface is not achieved at the connection point. The joining of sheet metal edges by flanging is also not possible with brittle materials such as steel, which is high-alloyed or has a high carbon content, and with certain aluminum alloys. Likewise, relatively thick strips or sheets cannot be joined by flanging.
There are also known other methods of joining sheet metal parts. So was z. B. proposed by A cuts in the sheet metal parts to be connected to form congruent tongues and these tongues of the two sheet metal parts to press into the slots formed by bending the tongues of the counterpart. However, this Ver drive has the disadvantage that the strength of the seams formed by tongues is always significantly less than the strength of the sheet.
In addition, the insertion of the tongues into the slots is a relatively complicated job. In many cases it is also necessary to have the seam formed in this way subjected to an aftertreatment in order to make this seam waterproof.
In contrast, the method according to the invention is characterized in that recesses and beads are formed at the connection point on both material parts to be connected, and that when the connection point is subsequently pressed together, the beads of the two material parts are deformed so that they are dovetail-like interlock and form a permanent bond.
The materials joined to one another according to the method are characterized in that they have a joining seam which is formed from dovetailed interlocking beads. The result is a smooth connection between the two materials, which also has a high level of strength.
This type of connection can be achieved very efficiently and hardly requires any follow-up checks, as is necessary, for example, with welded connections.
The invention also relates to the use of the method for the production of spiral tubes. An embodiment of the method according to the invention is described with reference to the drawing.
Fig. 1 shows the two parts to be connected. Fig. 2 shows the two parts of Fig. 1 in the connected state.
The two sheet metal parts 1 and 2 of FIG. 1 to be connected have the same profile. The nose 3 on one sheet metal part corresponds to the recess 4 on the other part. The same applies to the beads 5 and 6 and the recess 7. If the two parts 1 and 2 are now pressed together, e.g. B. by rolling, pressing or hammering, the beads 3, 5 and 6 deform and engage in a dovetail shape. This creates a connection of high strength.
It has no bulges and is also completely tight and therefore ideally suited for the production of pipes, in particular spiral pipes. With this method, spiral tubes can be manufactured from drawn aluminum strips on a spiral tube winding machine, for example, as they are already used for the manufacture of welded tubes. Of course, welding equipment is superfluous in such a case and the seam does not have to be checked.
A mechanical deformation operation can namely be controlled much better and more reliably than a welding operation.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH731562A CH402518A (en) | 1962-06-18 | 1962-06-18 | Method for the permanent connection of sheet and strip-shaped materials and sheet metal parts connected to one another according to this method and application of the method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH731562A CH402518A (en) | 1962-06-18 | 1962-06-18 | Method for the permanent connection of sheet and strip-shaped materials and sheet metal parts connected to one another according to this method and application of the method |
Publications (1)
Publication Number | Publication Date |
---|---|
CH402518A true CH402518A (en) | 1965-11-15 |
Family
ID=4323198
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH731562A CH402518A (en) | 1962-06-18 | 1962-06-18 | Method for the permanent connection of sheet and strip-shaped materials and sheet metal parts connected to one another according to this method and application of the method |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH402518A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2470227A2 (en) * | 1979-11-20 | 1981-05-29 | Quesdeville Michel Sa | Hinge for articulated rod - has deformable locating projection which passes through hole in cooperating plate |
EP0259925A1 (en) * | 1986-09-05 | 1988-03-16 | Littelfuse Tracor B.V. | A method of interconnecting metal strips for use in electrical components, and electrical component comprising strips thus interconnected |
EP0508497A2 (en) * | 1987-07-01 | 1992-10-14 | Kawasaki Jukogyo Kabushiki Kaisha | Composite structures and methods of manufacturing the same |
EP0508083A1 (en) * | 1991-04-08 | 1992-10-14 | Julius & August Erbslöh GmbH & Co. | Permanent, firm profile joint, longitudinally closed on all sides |
-
1962
- 1962-06-18 CH CH731562A patent/CH402518A/en unknown
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2470227A2 (en) * | 1979-11-20 | 1981-05-29 | Quesdeville Michel Sa | Hinge for articulated rod - has deformable locating projection which passes through hole in cooperating plate |
EP0259925A1 (en) * | 1986-09-05 | 1988-03-16 | Littelfuse Tracor B.V. | A method of interconnecting metal strips for use in electrical components, and electrical component comprising strips thus interconnected |
EP0508497A2 (en) * | 1987-07-01 | 1992-10-14 | Kawasaki Jukogyo Kabushiki Kaisha | Composite structures and methods of manufacturing the same |
EP0508497A3 (en) * | 1987-07-01 | 1993-07-28 | Kawasaki Jukogyo Kabushiki Kaisha | Composite structures and methods of manufacturing the same |
EP0508083A1 (en) * | 1991-04-08 | 1992-10-14 | Julius & August Erbslöh GmbH & Co. | Permanent, firm profile joint, longitudinally closed on all sides |
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