DE915570C - Tools manufactured by powder metallurgy with differently composed cutting and carrying parts - Google Patents
Tools manufactured by powder metallurgy with differently composed cutting and carrying partsInfo
- Publication number
- DE915570C DE915570C DEB5403D DEB0005403D DE915570C DE 915570 C DE915570 C DE 915570C DE B5403 D DEB5403 D DE B5403D DE B0005403 D DEB0005403 D DE B0005403D DE 915570 C DE915570 C DE 915570C
- Authority
- DE
- Germany
- Prior art keywords
- cutting
- powder metallurgy
- powder
- differently composed
- carrying parts
- 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
- 238000005520 cutting process Methods 0.000 title claims description 10
- 238000004663 powder metallurgy Methods 0.000 title claims description 4
- 239000000843 powder Substances 0.000 claims description 10
- 229910000997 High-speed steel Inorganic materials 0.000 claims description 8
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 3
- 239000010962 carbon steel Substances 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 description 14
- 239000002184 metal Substances 0.000 description 14
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000002131 composite material Substances 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005476 soldering Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 150000001247 metal acetylides Chemical class 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000005555 metalworking Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 229910021332 silicide Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
- B22F7/06—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Composite Materials (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Description
Auf pulvermetallurgischem Wege hergestellte Werkzeuge mit verschieden zusammengesetztem Schneid- und Tragteil Bei Schnellstahlwerkzeugen verwendet man vielfach zum Zweck der Ersparung von Legierungselementen unlegierte Stahlträger, die eine Panzerung durch Aufschweißen von Schnellstahl oder durch Auflöten von geformten Schnellstahlplättchen erhalten. Beim Aufschweißen besteht der Nachteil, daß die Schweißraupe aus Schnellstahl spanabhebend und durch Schleifen in die endgültige Gestalt gebracht werden muß, wodurch Arbeitszeit- und Materialverluste entstehen, während die durch Auflöten hergestellte Verbindung keiner schweren Beanspruchung gewachsen ist.Tools manufactured by powder metallurgy with different composite cutting and carrying part often unalloyed steel girders for the purpose of saving alloying elements, armoring by welding on high-speed steel or by soldering on shaped ones Obtained high-speed steel plates. When welding there is the disadvantage that the Welding bead made of high-speed steel by cutting and grinding into the final Must be brought into shape, resulting in loss of working time and material, while the connection made by soldering is not subjected to heavy stress has grown.
Es ist bereits ein Verfahren zur Herstellung von Werkzeugen mit an- oder eingefügten Hartmetallteilen beschrieben worden, bei dem die gleichzeitige Herstellung des eigentlichen Trägers und des dazugehörigen Hartmetallteiles auf sintermetallurgischem Wege erfolgt. Dieses bekannte Verfahren besteht z. B. darin, daß man in einer dem herzustellenden Gegenstand entsprechenden Form das eine Metall in Pulverform vorpreßt, sodann zur Verhinderung der Vermischung eine Metallfolie oder ein Metallgewebe einlegt und danach das Metall des anderen Teiles in Pulverform einfüllt und fertigpreßt. In den Fällen, wo eine Vermischung der beiden Pulverarten nicht zu befürchten ist, kann auch das Einfügen der Metalltrennfolie unterbleiben.There is already a process for the production of tools with different or inserted hard metal parts have been described, in which the simultaneous Production of the actual carrier and the associated hard metal part sintered metallurgical way. This known method consists e.g. B. in that one metal in a form corresponding to the object to be manufactured in powder form, then a metal foil to prevent mixing or insert a metal mesh and then the metal of the other part in powder form filled in and finished pressing. In cases where there is a mixture of the two types of powder is not to be feared, the insertion of the metal separating film can also be omitted.
Ferner ist die Herstellung gesinterter metallischer Körper bekannt, die zumindest aus zwei verschiedenen zusammengesinterten Bestandteilen bestehen, in denen ein im Verhältnis zum Eisen schwer schmelzbares Metall, wie Wolfram, Molybdän od, dgl., und bzw. oder Hartstoffe, wie Karbide, Nitride, Silicide, Boride, enthalten sind und bei denen sich die Anteile an schwer schmelzbarem Metall bzw. an Hartstoff in mindestens einer Richtung kontinuierlich ändern.Furthermore, the production of sintered metallic bodies is known, which consist of at least two different components sintered together, in a metal that is difficult to melt in relation to iron, such as tungsten or molybdenum od, the like., and / or hard materials such as carbides, nitrides, silicides, borides and in which the proportions of hard-to-melt metal or hard material are change continuously in at least one direction.
Derartige Körper können für die Metallbearbeitung eine Arbeitsfläche mit sehr großer Härte aufweisen. Die Herstellung erfolgt aus einer Mischung von Karbiden u. dgl., wobei die Gehalte an beigemengtem Hilfsmetall, z. B. Kobalt, Nickel und Eisen, mehr oder weniger kontinuierlich in der Richtung von der Arbeitsfläche weg ansteigen.Such bodies can be used as a work surface for metalworking with very great hardness. It is made from a mixture of Carbides and the like, the contents of added auxiliary metal, e.g. B. cobalt, nickel and iron, more or less continuously in the direction of the work surface rise away.
Schließlich ist ein Verfahren zur Herstellung von Verbundmetallen bekanntgeworden, bei dem die einzelnen Schichten aus den entsprechenden Metallpulvern gepreßt und gemeinsam gesintert werden. Durch eine nachträgliche Wärmebehandlung ist eine teilweise oder vollständige Homogenisierung erzielbar.Finally, there is a method of making composite metals became known, in which the individual layers of the corresponding metal powders pressed and sintered together. By subsequent heat treatment partial or complete homogenization can be achieved.
Trotz der hervorragenden Härte der Hartlegierungen haben sich auf verschiedenen Gebieten, wie beim Bohren, Fräsen, Sägen, Räumen und Gewindeschneiden, die Schnellstähle behaupten können. Beim Bohren zäher Metalle werden z. B. beim Herausbefördern des Spans aus dem Bohrloch die spröden Hartmetalle leicht verletzt. Die Erfindung trägt diesen Umständen Rechnung und besteht darin, daß Werkzeuge, insbesondere kleinere Bohrer, Fräser usw., mit verschieden zusammengesetztem Schneid- und Tragteil auf pulvermetallurgischeiri Wege derart hergestellt werden, daß Schnellstahlpulver für den Schneidteil und Kohlenstoffstahlpulver für den Tragteil unter Herbeiführung eines verlaufenden Überganges zwischen den beiden Pulverarten gemeinsam gesintert werden.Despite the excellent hardness of the hard alloys have become various areas, such as drilling, milling, sawing, broaching and thread cutting, which high-speed steels can claim. When drilling tough metals z. B. at Conveying the chip out of the borehole easily injures the brittle hard metals. The invention takes these circumstances into account and consists in the fact that tools, especially smaller drills, milling cutters, etc., with differently composed cutting and supporting part are manufactured by powder metallurgy methods in such a way that high-speed steel powder for the cutting part and carbon steel powder for the supporting part under induction a smooth transition between the two types of powder sintered together will.
Die erfindungsgemäßen Schnellstahlverbundwerkzeuge, die einen aus Schnellstahl bestehenden Schneidteil und einen verlaufenden Übergang zum Tragteilmaterial aufweisen, vermeiden die Nachteile der unter Löten der Schneide auf den Träger aus unlegiertem Stahl hergestellten Werkzeuge.The high-speed steel composite tools according to the invention, which one from High-speed steel existing cutting part and a smooth transition to the supporting part material have, avoid the disadvantages of soldering the cutting edge onto the carrier tools made of carbon steel.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEB5403D DE915570C (en) | 1944-10-24 | 1944-10-24 | Tools manufactured by powder metallurgy with differently composed cutting and carrying parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEB5403D DE915570C (en) | 1944-10-24 | 1944-10-24 | Tools manufactured by powder metallurgy with differently composed cutting and carrying parts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE915570C true DE915570C (en) | 1954-07-26 |
Family
ID=6953993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEB5403D Expired DE915570C (en) | 1944-10-24 | 1944-10-24 | Tools manufactured by powder metallurgy with differently composed cutting and carrying parts |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE915570C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0111600A1 (en) * | 1982-12-13 | 1984-06-27 | Reed Rock Bit Company | Improvements in or relating to cutting tools |
| US4911625A (en) * | 1986-09-18 | 1990-03-27 | The British Petroleum Company, P.L.C. | Method of making graded structure composites |
| WO2002042024A1 (en) * | 2000-11-22 | 2002-05-30 | Sandvik Ab | Multiple grade cemented carbide inserts for metal working and method of making the same |
-
1944
- 1944-10-24 DE DEB5403D patent/DE915570C/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0111600A1 (en) * | 1982-12-13 | 1984-06-27 | Reed Rock Bit Company | Improvements in or relating to cutting tools |
| US4911625A (en) * | 1986-09-18 | 1990-03-27 | The British Petroleum Company, P.L.C. | Method of making graded structure composites |
| WO2002042024A1 (en) * | 2000-11-22 | 2002-05-30 | Sandvik Ab | Multiple grade cemented carbide inserts for metal working and method of making the same |
| US6685880B2 (en) | 2000-11-22 | 2004-02-03 | Sandvik Aktiebolag | Multiple grade cemented carbide inserts for metal working and method of making the same |
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