DE3723325A1 - METHOD AND TOOL FOR ROUNDING AND COMPRESSING EDGES - Google Patents
METHOD AND TOOL FOR ROUNDING AND COMPRESSING EDGESInfo
- Publication number
- DE3723325A1 DE3723325A1 DE19873723325 DE3723325A DE3723325A1 DE 3723325 A1 DE3723325 A1 DE 3723325A1 DE 19873723325 DE19873723325 DE 19873723325 DE 3723325 A DE3723325 A DE 3723325A DE 3723325 A1 DE3723325 A1 DE 3723325A1
- Authority
- DE
- Germany
- Prior art keywords
- die
- tool
- rounding
- edges
- radius
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J13/00—Details of machines for forging, pressing, or hammering
- B21J13/02—Dies or mountings therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/01—Extruding metal; Impact extrusion starting from material of particular form or shape, e.g. mechanically pre-treated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/02—Die forging; Trimming by making use of special dies ; Punching during forging
Description
Die Erfindung betrifft ein Verfahren zum Abrunden und Verdichten von Kanten von Strangpreßprofilabschnitten sowie ein Werkzeug zur Durchführung des Verfahrens.The invention relates to a method for rounding and compacting of edges of extruded sections and a tool to carry out the procedure.
Bisher werden die Kanten von Strangpreßprofilabschnitten durch spanende Bearbeitung wie Schleifen, Fräsen oder Polieren abge rundet. Diese Art der Abrundung ist zeitraubend und aufwendig, da das Werkstück umgespannt werden muß.So far, the edges of extruded profile sections machining such as grinding, milling or polishing rounds. This type of rounding is time consuming and time consuming, because the workpiece has to be reclamped.
Aufgabe der vorliegenden Erfindung ist es, die Kanten von Strangpreßprofilabschnitten aus Aluminium, insbesondere vom Typ AlMgSi, derart abzurunden und zu verdichten, daß ein Toleranz feld von ±0,3% bezogen auf Länge und Breite des Werkstücks verarbeitbar ist. Die Dickentoleranz soll dabei max. bis +4% betragen.The object of the present invention is the edges of Extruded sections made of aluminum, in particular of the type AlMgSi to round off and condense such that a tolerance field of ± 0.3% related to length and width of the workpiece is processable. The thickness tolerance should be max. up to + 4% be.
Erfindungsgemäß wird diese Aufgabe durch die in den Patentan sprüchen angegebenen Merkmale gelöst. Es hat sich gezeigt, daß mit dem erfindungsgemäßen Verfahren eine Steigerung der Dauer festigkeit des gesägten Strangpreßprofilabschnittes um 20-30% erreicht werden kann. Dies gilt für alle Beanspruchungsarten wie Biegefestigkeit, Druck-Zugfestigkeit und Torsionsfestigkeit im Schwellbereich und im Wechselfestigkeitsbereich.According to the invention this object is achieved by the in the patent characteristics specified resolved. It has been shown that with the inventive method an increase in duration strength of the sawn extruded section by 20-30% can be reached. This applies to all types of stress such as bending strength, compressive tensile strength and torsional strength in the threshold area and in the fatigue strength area.
Im folgenden wird die Erfindung anhand eines Beispieles näher erläutert.The invention will be explained in more detail below using an example explained.
Die Figur zeigt einen Querschnitt durch ein Obergesenk 5 und ein Untergesenk 6 mit seitlichen Flanken 1, 2 bzw. 3, 4. Zwischen den Flanken 1 bis 4 und der jeweils zugeordneten Gesenkdecke 7 bzw. Gesenkboden 8 ist ein Neigungswinkel α 1-4 eingezeichnet. Dieser Neigungswinkel ist wichtig für das Kali brieren der Strangpreßprofilabschnitte bezüglich deren Toleran feld für Länge und Breite. The figure shows a cross section through an upper die 5 and a lower die 6 with side flanks 1 , 2 and 3 , 4 , respectively. An angle of inclination α 1-4 is shown between the flanks 1 to 4 and the respectively assigned die cover 7 or die bottom 8 . This angle of inclination is important for calibrating the extruded profile sections with respect to their tolerance field for length and width.
Die Eckpunkte 9 bis 12 der Gesenkhälften weisen einen Radius von 1-5 mm auf, womit sichergestellt ist, daß die Strangpreß profilabschnitte den geforderten Kantenradius am gesamten Umfang erhalten.The corner points 9 to 12 of the die halves have a radius of 1-5 mm, which ensures that the extruded profile sections receive the required edge radius over the entire circumference.
Zwischen den Gesenkhälften 5, 6 ist ein Werkstück 13 mit Über
maß eingesetzt. Beim Zufahren des Gesenks (nicht dargestellt)
wird folgendes bewirkt:
Der Strangpreßprofilabschnitt wird schlagartig über die schrägen
Flanken in das Werkzeug gepreßt und insbesondere in den Radius
9 bis 12 und teilweise auch an den Seitenflanken sowie auf der
Ober- und Unterseite verdichtet.Between the die halves 5 , 6 , a workpiece 13 is used with excess. When the die is closed (not shown), the following is effected:
The extruded profile section is suddenly pressed into the tool via the oblique flanks and is compressed in particular in the radius 9 to 12 and in some cases also on the side flanks and on the top and bottom.
Um die Genauigkeit des Zusammenfahrens der Gesenkhälften 5, 6 zu verbessern sind Führungsstifte 14, 15 mit entsprechenden Bohrungen 16, 17 in den Gesenkhälften angebracht. Die Nuten 18 bis 21 dienen zur Aufnahme der Gesenkhälften im Maschinenteil der Gesamtanlage.In order to improve the accuracy of moving the die halves 5 , 6 together , guide pins 14 , 15 are provided with corresponding bores 16 , 17 in the die halves. The grooves 18 to 21 serve to receive the die halves in the machine part of the overall system.
Claims (3)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19873723325 DE3723325A1 (en) | 1987-07-15 | 1987-07-15 | METHOD AND TOOL FOR ROUNDING AND COMPRESSING EDGES |
DE8888110647T DE3865261D1 (en) | 1987-07-15 | 1988-07-04 | METHOD AND TOOL FOR ROUNDING AND COMPRESSING EDGES. |
EP88110647A EP0299319B1 (en) | 1987-07-15 | 1988-07-04 | Method and tool for rounding off and compressing edges |
ES198888110647T ES2025738T3 (en) | 1987-07-15 | 1988-07-04 | PROCEDURE AND TOOL FOR ROUNDING AND COMPACTING OF EDGES. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19873723325 DE3723325A1 (en) | 1987-07-15 | 1987-07-15 | METHOD AND TOOL FOR ROUNDING AND COMPRESSING EDGES |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3723325A1 true DE3723325A1 (en) | 1989-01-26 |
Family
ID=6331581
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19873723325 Withdrawn DE3723325A1 (en) | 1987-07-15 | 1987-07-15 | METHOD AND TOOL FOR ROUNDING AND COMPRESSING EDGES |
DE8888110647T Expired - Lifetime DE3865261D1 (en) | 1987-07-15 | 1988-07-04 | METHOD AND TOOL FOR ROUNDING AND COMPRESSING EDGES. |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8888110647T Expired - Lifetime DE3865261D1 (en) | 1987-07-15 | 1988-07-04 | METHOD AND TOOL FOR ROUNDING AND COMPRESSING EDGES. |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0299319B1 (en) |
DE (2) | DE3723325A1 (en) |
ES (1) | ES2025738T3 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4300642C1 (en) * | 1993-01-13 | 1993-11-25 | Vaw Ver Aluminium Werke Ag | Producing aluminium@ connecting components - involves stamping flat blank to form undersize holes before cold-pressing into final shape |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB937927A (en) * | 1962-08-23 | 1963-09-25 | Kaiser Aluminium Chem Corp | Improvements in or relating to the forging of aluminium alloys |
-
1987
- 1987-07-15 DE DE19873723325 patent/DE3723325A1/en not_active Withdrawn
-
1988
- 1988-07-04 ES ES198888110647T patent/ES2025738T3/en not_active Expired - Lifetime
- 1988-07-04 DE DE8888110647T patent/DE3865261D1/en not_active Expired - Lifetime
- 1988-07-04 EP EP88110647A patent/EP0299319B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
ES2025738T3 (en) | 1992-04-01 |
EP0299319B1 (en) | 1991-10-02 |
DE3865261D1 (en) | 1991-11-07 |
EP0299319A2 (en) | 1989-01-18 |
EP0299319A3 (en) | 1989-07-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8125 | Change of the main classification |
Ipc: B21D 31/06 |
|
8181 | Inventor (new situation) |
Free format text: FLEMMING, HELMUT, DIPL.-ING., 7311 HOCHDORF, DE KLEINSCHMIT, EINHARD, DIPL.-ING., 7300 ESSLINGEN, DE HOFFMANN, THOMAS, DIPL.-ING. (FH), 7056 WEINSTADT, DE |
|
8127 | New person/name/address of the applicant |
Owner name: VEREINIGTE ALUMINIUM-WERKE AG, 1000 BERLIN UND 530 |
|
8141 | Disposal/no request for examination | ||
8127 | New person/name/address of the applicant |
Owner name: VAW ALUMINIUM AG, 53117 BONN UND 1000 BERLIN, DE M |