DE728764C - Process for the production of hollow bodies from steel by the cold spray process, starting from a preformed cup - Google Patents
Process for the production of hollow bodies from steel by the cold spray process, starting from a preformed cupInfo
- Publication number
- DE728764C DE728764C DEK155433D DEK0155433D DE728764C DE 728764 C DE728764 C DE 728764C DE K155433 D DEK155433 D DE K155433D DE K0155433 D DEK0155433 D DE K0155433D DE 728764 C DE728764 C DE 728764C
- Authority
- DE
- Germany
- Prior art keywords
- hollow bodies
- steel
- production
- starting
- cold spray
- 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.)
- Expired
Links
Classifications
-
- 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
- B21C23/02—Making uncoated products
- B21C23/03—Making uncoated products by both direct and backward extrusion
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Description
Verfahren zur Herstellung von Hohlkörpern aus Stahl nach dem Kaltspritzverfahren, ausgehend von einem vorgeformten Napf Gegenstand der Erfindung ist jie. Herstellung von dünnwandigen Hohlkörpern aus Stahl nach dein Kaltspritzverfahren gemäß dem Patent 717679. Nach diesem Patent werden Hohlkörper aus napfartigen Rohlingen in einer Richtung kaltgespritzt. Auf eine besondere Formgebung am offenen Ende der Hohlkörper, z. B. für einen Muffenansatz o. dgl., iat kein Bedacht gelegt. Solche Hohlkörper in Form von Buchsen eignen sich beispielsweise als Mundlochbuchsen für Geschosse. Ihre erfindungsgemäße Herstellung erfolgt in der Weise, daß in entgegengesetz-%er Richtung der Preßstempelbewegung zum Kaltspritzen des -Hohlkörpers an diesem für einen Muffenansatz der entsprechende Napfteil zum Fließen gebracht wird. Für die Herstellung solcher Buchsen dient ein Aufnehmer mit einem inneren Ringansatz. Eiaa in diesen eingesetzter Napf wird unter `dem Druck eines Preßstempels mit einem vorzugsweise abgestuften, dünneren Zapfen in die Buchsenform kaltgespritzt unter gleichzeitiger Bildung eines Muffenansatzes. Mit dem Spritzen des Buchsenkörpers in Richtung der Preßstempelbewegun.g erfolgt dieser entgegengesetzt ein Aufsteigen des Napfwerkstoffes für. die Muffenbildung.Process for the production of hollow bodies from steel by the cold spray process, starting from a preformed bowl the subject of the invention is jie. Manufacturing of thin-walled hollow bodies made of steel according to the cold spray process according to the patent 717679. According to this patent, hollow bodies are made from cup-like blanks in a Direction cold-sprayed. On a special shape at the open end of the hollow body, z. B. for a socket approach o. The like., Iat no consideration. Such hollow bodies in the form of sockets are suitable, for example, as mouth hole sockets for projectiles. Their production according to the invention takes place in such a way that in opposite% he Direction of the ram movement for cold spraying the hollow body on this for a socket approach the corresponding cup part is brought to flow. For the A sensor with an inner ring attachment is used to produce such sockets. Eiaa in this inserted cup is under the pressure of a ram with a preferably stepped, thinner spigot into the socket shape cold-sprayed while at the same time Formation of a socket approach. With the spraying of the socket body in the direction of the Preßstempelbewegungun.g takes place in the opposite direction to the rising of the cup material for. the socket formation.
In der Zeichnung sind die Werkzeuge und der Kaltspritzvorgang bei in Ansicht dargestellten Preßstempeln veranschaulicht, während der Napf nebst Hohlkörper und der Aufnehmer im Schnitt zu ersehen sind.In the drawing, the tools and the cold spray process are at illustrated in view of the press rams, while the cup together with the hollow body and the transducer can be seen in the section.
Es veranschaulichen: Abb. a einen in eüiem Gesenk eingesetzten Napf, der in Abb. 2 zu einer Buchse mit einem Muffenansatz gespritzt ist.To illustrate: Fig. A a bowl inserted in a die, the in Fig. 2 is molded into a socket with a socket attachment.
Es bezeichnet t den Preßstempel mit dem Zapfen g und der Abstufung h. d ist der Aufnehmer mit dem Ringansatz e. Für den Napf ,u-i1-d die daraus erzeugte Buchse gilt das Bezugszeichen c.It denotes t the ram with the pin g and the gradation h. d is the transducer with the ring attachment e. For the cup, u-i1-d the socket produced therefrom, the reference symbol c applies.
Ist der Preßstempel aus der Anfangsstellung in Abb. i in die in Abb. 2 gezeichnete Stellung bewegt worden, so hat er den Napfwerl.stoff im wesentlichen in Richtung seiner Bewegung zum Abfließen gebracht, während gleichzeitig der Werkstoff für den Muffenteil f eingespritzt ist, wie mit Pfeilen angedeutet ist.If the ram has moved from the initial position in Fig. I to the position shown in Fig. 2 position shown has been moved, then he has the bowl material essentially in the direction of its movement to drain, while at the same time the material is injected for the socket part f, as indicated by arrows.
Statt der gezeichneten Buchse kann jeder andere beliebige Hohlkörper auf die erläuterte Weise hergestellt werden. je nach der gewünschten Innenform der Buchse kann der Preßstempel statt mit einer mit mehreren Abstufungen versehen sein. Es ist wesentlich, daß die erfindungsgemäßen Maßnahmen in einem Arbeitsgang maßhaltige Hohlkörper ohne jeglichen Werkstoffabfall erzielen lassen.Instead of the socket shown, any other hollow body can be used can be produced in the manner explained. depending on the desired internal shape of the Bushing, the ram can be provided with several gradations instead of one. It is essential that the measures according to the invention be dimensionally stable in one operation Allow hollow bodies to be achieved without any material waste.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEK155433D DE728764C (en) | 1937-07-11 | 1937-07-11 | Process for the production of hollow bodies from steel by the cold spray process, starting from a preformed cup |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEK155433D DE728764C (en) | 1937-07-11 | 1937-07-11 | Process for the production of hollow bodies from steel by the cold spray process, starting from a preformed cup |
Publications (1)
Publication Number | Publication Date |
---|---|
DE728764C true DE728764C (en) | 1942-12-03 |
Family
ID=7253268
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEK155433D Expired DE728764C (en) | 1937-07-11 | 1937-07-11 | Process for the production of hollow bodies from steel by the cold spray process, starting from a preformed cup |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE728764C (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE872334C (en) * | 1950-12-01 | 1953-03-30 | Ver Deutsche Metallwerke Ag | Process for the production of spinning tubes |
DE883554C (en) * | 1943-06-12 | 1953-07-20 | Kreidler S Metall U Drahtwerke | Method and device for the production of tubular workpieces closed at one end |
DE934265C (en) * | 1951-04-19 | 1955-10-13 | Fritz Bernhard Hatebur | Process for the production of hollow hollow metal bodies which are at least simply stepped on the outside, in particular, spark plug housings |
DE954683C (en) * | 1944-01-18 | 1956-12-20 | Kabel Und Metallwerke Neumeyer | Process for the production of pipe barrels for hand and machine weapons |
DE968459C (en) * | 1949-01-21 | 1958-02-20 | Bauer & Schaurte | Process for the production of high-strength bolt workpieces with heads, such as screws and rivets, by cold forming |
DE973138C (en) * | 1952-01-01 | 1959-12-10 | Kreidler Dipl Ing Alfred | Device for extrusion |
-
1937
- 1937-07-11 DE DEK155433D patent/DE728764C/en not_active Expired
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE883554C (en) * | 1943-06-12 | 1953-07-20 | Kreidler S Metall U Drahtwerke | Method and device for the production of tubular workpieces closed at one end |
DE954683C (en) * | 1944-01-18 | 1956-12-20 | Kabel Und Metallwerke Neumeyer | Process for the production of pipe barrels for hand and machine weapons |
DE968459C (en) * | 1949-01-21 | 1958-02-20 | Bauer & Schaurte | Process for the production of high-strength bolt workpieces with heads, such as screws and rivets, by cold forming |
DE872334C (en) * | 1950-12-01 | 1953-03-30 | Ver Deutsche Metallwerke Ag | Process for the production of spinning tubes |
DE934265C (en) * | 1951-04-19 | 1955-10-13 | Fritz Bernhard Hatebur | Process for the production of hollow hollow metal bodies which are at least simply stepped on the outside, in particular, spark plug housings |
DE973138C (en) * | 1952-01-01 | 1959-12-10 | Kreidler Dipl Ing Alfred | Device for extrusion |
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