AT26820B - Process for narrowing hollow bodies made of sheet metal. - Google Patents
Process for narrowing hollow bodies made of sheet metal.Info
- Publication number
- AT26820B AT26820B AT26820DA AT26820B AT 26820 B AT26820 B AT 26820B AT 26820D A AT26820D A AT 26820DA AT 26820 B AT26820 B AT 26820B
- Authority
- AT
- Austria
- Prior art keywords
- sheet metal
- hollow bodies
- bodies made
- narrowing
- transition point
- Prior art date
Links
Landscapes
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Description
<Desc/Clms Page number 1>
Verfahren zur Verengung von Hohlkörpern aus Blech.
EMI1.1
<Desc/Clms Page number 2>
Aus diesen Grilnden ist es nicht möglich, mit Hilfe des Futters f die Übergangs stelle während der Verengung auch gleichzeitig zu formen, vielmehr enthält die Übergangs-
EMI2.1
die denselben Durchmesser haben, wie die vorigen, aber mit ihren oberen Rändern derart ausgebildet sind, dass beim Einführen des Hohlkörpers die an der Übergangsstelle vorhandene Kröpfung geglättet wird. Hier hat dann das Futter f ausschliesslich den Zweck der Formgebung.
Fig. 4 und 5 stellen dar, wie die weitere Verengung und Glättung der hiebei auftretenden Kröpfung mit Hilfe der noch engeren Matrizen m und n in gleicher Weise erreicht wird, wie dies vorhin an Hand der Fig. 3 beschrieben wurde. Der Hohlkörper erhält dann schliesslich die ans Fig. 6 ersichtliche Gestalt. Doch kann natürlich dio Verengung noch weiter fortgesetzt werden, wie denn auch nach Bedarf Zwischenstufen ein-
EMI2.2
Immer muss aber bei der fortschreitenden Verengung der engere Teil von innen derart gestutzt werden, dass der beim Einführen in die Matrizen auftretende achsiale Druck aufgenommen und die Übergangsstelle entlastet wird.
<Desc / Clms Page number 1>
Process for narrowing hollow bodies made of sheet metal.
EMI1.1
<Desc / Clms Page number 2>
For these reasons it is not possible with the help of the lining f to form the transition point during the constriction, rather the transition point contains
EMI2.1
which have the same diameter as the previous ones, but are designed with their upper edges in such a way that when the hollow body is inserted, the offset present at the transition point is smoothed. Here the lining f has the sole purpose of shaping.
FIGS. 4 and 5 show how the further narrowing and smoothing of the cranking occurring here is achieved with the aid of the even narrower matrices m and n in the same way as was previously described with reference to FIG. The hollow body then finally has the shape shown in FIG. However, the narrowing can of course be continued even further, as can, if necessary, intermediate stages
EMI2.2
However, as the narrowing progresses, the narrower part must always be trimmed from the inside in such a way that the axial pressure that occurs during insertion into the matrices is absorbed and the transition point is relieved.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1902168713D DE168713C (en) | 1902-09-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT26820B true AT26820B (en) | 1906-12-27 |
Family
ID=5687389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT26820D AT26820B (en) | 1902-09-20 | 1906-03-19 | Process for narrowing hollow bodies made of sheet metal. |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT26820B (en) |
-
1906
- 1906-03-19 AT AT26820D patent/AT26820B/en active
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