DE384931C - Connection of tools made of profiled, high-quality steel with a shank made of low-quality steel - Google Patents
Connection of tools made of profiled, high-quality steel with a shank made of low-quality steelInfo
- Publication number
- DE384931C DE384931C DESCH64329D DESC064329D DE384931C DE 384931 C DE384931 C DE 384931C DE SCH64329 D DESCH64329 D DE SCH64329D DE SC064329 D DESC064329 D DE SC064329D DE 384931 C DE384931 C DE 384931C
- Authority
- DE
- Germany
- Prior art keywords
- quality steel
- profiled
- shank
- low
- connection
- 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
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K5/00—Making tools or tool parts, e.g. pliers
- B21K5/02—Making tools or tool parts, e.g. pliers drilling-tools or other for making or working on holes
- B21K5/04—Making tools or tool parts, e.g. pliers drilling-tools or other for making or working on holes twisting-tools, e.g. drills, reamers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling Tools (AREA)
- Forging (AREA)
Description
Um bei Werkzeugen, z. B. Spiralbohrern,In order to use tools such. B. twist drills,
Reibahlen usw., an hochwertigem Stahl zu sparen, geht das Bestreben schon seit langem dahin, den Schaft aus geringer wertigem Stahl herzustellen.Reamers, etc., to save on high-quality steel, the endeavor has been going on for a long time to manufacture the shaft from low-quality steel.
Alle bisher zusammengesetzten Werkzeuge haben den großen Nachteil, daß die Verbin-r dung zwischen Schaft und Werkzeug nicht einwandfrei und sicher ist. Vorliegende Erfindung bezweckt, diese Nachteile dadurch zu beseitigen, daß das Ende des Profilstahles durch Kegeligschmieden keilförmige Vertiefungen erhält, in die beim Einpressen dieses Endes in den vollen Schaft der Werkstoff des letzteren eindringt, so daß mit dem Schaft aus einem Stück bestehende Keile entstehen.All tools that have been assembled so far have the major disadvantage that the connec-r between the shaft and the tool is not correct and secure. Present invention aims to eliminate these disadvantages in that the end of the profile steel obtained by conical forging wedge-shaped depressions into which this is pressed when pressing At the end the material of the latter penetrates into the full shaft, so that with the shaft One-piece wedges are created.
In der Zeichnung ist ein Spiralbohrer ausIn the drawing, a twist drill is off
hochwertigem Profilstahl abgebildet, der mit einem Schaft aus geringer wertigem Stahl ver-high-quality profile steel shown, which is equipped with a shaft made of low-quality steel
ao bunden ist. Das Verfahren zur Herstellung dieser Verbindung ist folgendes:ao is bound. The procedure for making this connection is as follows:
Nachdem der Profilstahl gewunden ist, wobei das eine Ende geradebleiben (Abb. 1) oder ebenfalls gewunden sein kann (Abb. 2), wird dieses Ende durch Schmieden oder Pressen kegelig gestaltet. Hierdurch entstehen keilförmige Vertiefungen a, b, c, d. Gleichzeitig wird die Seele des Profilstahles infolge der Werkstoffverdrängung nach unten hin verstärkt (Abb. 3). Der so ausgebildete Profilstahl wird nun mittels einer Presse in einen Halter g eingesetzt und alsdann in einer Matrize in den auf Rotglut gebrachten Schaft £ eingetrieben. Da der Werkstoff seitlich nicht entweichen kann, dringt er in die keilförmigen Vertiefungen a, b, c, d des Werkzeugendes ein und bildet mit diesem eine innige Verbindung (Abb. 4).After the profile steel has been twisted, whereby one end can remain straight (Fig. 1) or it can also be twisted (Fig. 2), this end is made tapered by forging or pressing. This creates wedge-shaped depressions a, b, c, d. At the same time, the core of the profile steel is reinforced downwards as a result of the displacement of the material (Fig. 3). The section steel formed in this way is now inserted into a holder g by means of a press and then driven into the red-hot shaft £ in a die. Since the material cannot escape laterally, it penetrates the wedge-shaped depressions a, b, c, d of the tool end and forms an intimate connection with it (Fig. 4).
Durch den in die Vertiefungen a, b, c, d eingedrungenen Werkstoff werden Keile gebildet, die mit dem Schaft aus einem Stück bestehen. The material that has penetrated into the depressions a, b, c, d forms wedges which are made in one piece with the shaft.
Claims (1)
Verfahren zum Verbinden von Werkzeugen aus profiliertem, hochwertigem Stahl mit einem Schaft aus geringer wertigem Stahl, dadurch gekennzeichnet, daß das Ende des Profilstahles durch Kegeligschmieden keilförmige Vertiefungen (a, b, c, d) erhält, in die beim Einpressen dieses Endes in den vollen Schaft der Werkstoff des letzteren eindringt, so daß mit Jem Schaft aus einem Stück bestehende Keile entstehen.Patent claim:
Method for connecting tools made of profiled, high-quality steel with a shank made of low-quality steel, characterized in that the end of the profiled steel is given wedge-shaped depressions (a, b, c, d) by conical forging, into which when this end is pressed into the full Shank penetrates the material of the latter, so that with Jem shank existing wedges are formed from one piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DESCH64329D DE384931C (en) | 1921-10-18 | 1921-10-18 | Connection of tools made of profiled, high-quality steel with a shank made of low-quality steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DESCH64329D DE384931C (en) | 1921-10-18 | 1921-10-18 | Connection of tools made of profiled, high-quality steel with a shank made of low-quality steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE384931C true DE384931C (en) | 1923-02-22 |
Family
ID=7438241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DESCH64329D Expired DE384931C (en) | 1921-10-18 | 1921-10-18 | Connection of tools made of profiled, high-quality steel with a shank made of low-quality steel |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE384931C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1082676B (en) * | 1954-11-18 | 1960-06-02 | Ets Claude Paz & Silva | Method of attaching a metal wire to an electrode, the cross-section of which is larger than that of the wire, which consists wholly or partly of rare earth metals and whose melting temperature is lower than that of the wire |
| DE1189203B (en) * | 1958-09-03 | 1965-03-18 | Ver Deutsche Metallwerke Ag | Cup for electrolytic capacitors or for shielding electrical fields |
| DE1215482B (en) * | 1963-03-14 | 1966-04-28 | Mack & Schneider K G | Device for pressing a hard metal core into a heated blank and for simultaneous and all-round deformation of the blank |
-
1921
- 1921-10-18 DE DESCH64329D patent/DE384931C/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1082676B (en) * | 1954-11-18 | 1960-06-02 | Ets Claude Paz & Silva | Method of attaching a metal wire to an electrode, the cross-section of which is larger than that of the wire, which consists wholly or partly of rare earth metals and whose melting temperature is lower than that of the wire |
| DE1189203B (en) * | 1958-09-03 | 1965-03-18 | Ver Deutsche Metallwerke Ag | Cup for electrolytic capacitors or for shielding electrical fields |
| DE1215482B (en) * | 1963-03-14 | 1966-04-28 | Mack & Schneider K G | Device for pressing a hard metal core into a heated blank and for simultaneous and all-round deformation of the blank |
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