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
Application number
Other languages
German (de)
Original Assignee
Rheinisches Press & Ziehwerk K
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
Priority claimed from DE1902168713D external-priority patent/DE168713C/de
Application filed by Rheinisches Press & Ziehwerk K filed Critical Rheinisches Press & Ziehwerk K
Application granted granted Critical
Publication of AT26820B publication Critical patent/AT26820B/en

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)

PATENT-ANSPRUCH : Ein Verfahren zur Verengung von Hohlkörpern aus Blech, dadurch gekennzeichnet, dass der Hohlkörper an der Übergangsstelle von innen derart abgestützt wird, dass der beim Einführen zwischen die innere und äussere Matrize an der Übergangsstelle auftretende Übergangsstelle vor- entlastet wird. PATENT CLAIM: A method for narrowing hollow bodies made of sheet metal, characterized in that the hollow body is supported from the inside at the transition point in such a way that the transition point occurring between the inner and outer die at the transition point is relieved.
AT26820D 1902-09-20 1906-03-19 Process for narrowing hollow bodies made of sheet metal. AT26820B (en)

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)

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