BE365287A - - Google Patents
Info
- Publication number
- BE365287A BE365287A BE365287DA BE365287A BE 365287 A BE365287 A BE 365287A BE 365287D A BE365287D A BE 365287DA BE 365287 A BE365287 A BE 365287A
- Authority
- BE
- Belgium
- Prior art keywords
- steels
- chromium
- high speed
- cobalt
- cutting power
- Prior art date
Links
- 229910000831 Steel Inorganic materials 0.000 claims description 19
- 239000010959 steel Substances 0.000 claims description 19
- 229910052803 cobalt Inorganic materials 0.000 claims description 12
- VYZAMTAEIAYCRO-UHFFFAOYSA-N chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 9
- 229910052804 chromium Inorganic materials 0.000 claims description 8
- 239000011651 chromium Substances 0.000 claims description 8
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 8
- 239000010941 cobalt Substances 0.000 claims description 8
- 229910052721 tungsten Inorganic materials 0.000 claims description 8
- 229910052750 molybdenum Inorganic materials 0.000 claims description 4
- 229910052715 tantalum Inorganic materials 0.000 claims description 3
- 229910052720 vanadium Inorganic materials 0.000 claims description 2
- 229910001315 Tool steel Inorganic materials 0.000 claims 1
- 238000005520 cutting process Methods 0.000 description 7
- 239000000470 constituent Substances 0.000 description 6
- 239000000956 alloy Substances 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 4
- 239000010937 tungsten Substances 0.000 description 4
- REDXJYDRNCIFBQ-UHFFFAOYSA-N aluminium(3+) Chemical class [Al+3] REDXJYDRNCIFBQ-UHFFFAOYSA-N 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 2
- 229910052748 manganese Inorganic materials 0.000 description 2
- 239000011572 manganese Substances 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 241000518994 Conta Species 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 229910052770 Uranium Inorganic materials 0.000 description 1
- -1 for example Chemical class 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 230000000171 quenching Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000005482 strain hardening Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- JFALSRSLKYAFGM-UHFFFAOYSA-N uranium(0) Chemical compound [U] JFALSRSLKYAFGM-UHFFFAOYSA-N 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium(0) Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Cutting Tools, Boring Holders, And Turrets (AREA)
Description
<Desc/Clms Page number 1>
Acier au cobalt pour outils à grande vitesse.
On a déjà proposé des aciers désignés sous le nom d'aciers à durcissement ou à trempe automatique pour outils, dont certains sont des aciers au tungstène et au manganèse exempts de chrome alors que d'autres aciers sont des aciers au tungstène et au' chrome, mais il n'a jamais été proposé d'employer du cobalt com- me élément constitutif dans les allmages de la composisition ci- dessusComme dans tous les aciers trempe automatique le pou- voir tranchant a été comparativement faible, les aciers contas. nant du cobalt, exempt de chrome, et dou-és d'un grand pouvoir tranchant ont, encore été moins propos s.
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<Desc/Clms Page number 2>
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Les aciers connus pour outils à grande vitesse qui, d'au- tre part ont depuis le début de ce siè@e remplacé e n raison de leur grand pouvoir tranchant ou coupant l'ac@@@ se trempant de lui-êne précédemment employé ont, dans tous les cas, pour élément constitutif principal du chrome et cornue autre élément constitutif essentiel du tungstène ou ses équivalents et, ré- cemment aussi, le cobalt a été fréquemment utilisé comme élé- ment constitutif additionnel de ces aciers pour outils à grande vitesse.
Toutefois le chrome est considéré comme élément cons- titutif essentiel de tous les aciers modernes pour outils à grande vitesse ayant un pouvoir tranchant ou pouvoir de coupe approprié et est utilisé dans tous les cas. Ces ciers connus renfermant du chrome et du tungstène avec ou sans addition de cobalt, présentent des difficultés relativement à leur usa- ge pratique pour ce qui est de leur usinage à chaud, de leur façonnage ou conformation à froid et leur traitement thermique.
Or, on a découvert que le pouvoir tranchant des aciers pou outils à grande vitesse contenant du cobalt sans aucune addi- tion de chrome est en substance le même que celui des aciers pour outils à grande vitesse, contenant du chrome, employés jusqu'à présent, mais que l'usinage ou travail à chaud de ces aciers au cobalt exempts de chrome, leur façonnage à froi et leur traitement thermique étaient beaucoup plus faciles et que les difficultés signalées ci-dessus et auxquelles on se heurte dans le cas d'aciers contenant du chrome pour outils à grande vitesse se trouvent pour le moins considérablement réduites et dans une certaine mesure même complètement supprimées*
Les chiffres ci-dessous fournissent divers exemples de mise en pratique de la présente invention*En particulier,
les chif- fres fournis pour les éléments qui accompagnent habituellement le fer tels que le manganèse et la silicium ne sont donnés qu'à titte d'exemple seulement et ne sont donc pas limitatifs*
<Desc/Clms Page number 3>
EMI3.1
8i W¯¯¯¯V . ".No Co . Ta 1. 21 0.21 0.57 22. 9 1.64 0. 56 18. 9 i ' 2 1;i ,x 8) 0.97 0. 55 0.16 19682 riz 1.06 IO.SI 0.17.. , 5) 1.00 0,,5 0.87 .9,':
1.74 Ob 41 9.40 0.81' 4) 0.88 0.22 0,52 a.8s is 1. 54 0.90 15.54 0. 9? 5) 0.90 traces 0,09 l6, 90 0.51 o, 15 ôé 45 o, 69 " le reste étant du fer,
On remarquera que la proportion de cobalt peut varier dans de très grandes litotes. D'autres éléments constitutifs' de l'alliage comme par exemple le vanadium, le molybdène, le tantale, le titane) l'urane, et ainsi de s uite , sont ou bien des éléments qui accompagnent d'autres constituants de l'allia ge ou bien peuvent être ajoutés en proportions convenablement plus fortes suivant les usages spéciaux auxquels l'alliage résultant est destiné,
Les avantages offerts par la présente invention sont éga- lement obtenus en la présence de ces faibles pourcentages de chrome que l'on peut considérer comme des impuretés,
Les aciers conformes à la présente invention peuvent être manufacturés de différentes manières bien connues dans la fa- brication des aciers pour outils à grande vitesse.
<Desc / Clms Page number 1>
Cobalt steel for high speed tools.
Steels referred to as self-hardening or self-quenching tool steels have already been proposed, some of which are chromium-free tungsten and manganese steels while other steels are tungsten and chromium steels. , but it has never been proposed to employ cobalt as a constituent element in the alloys of the above composition. As in all automatic quenching steels the cutting power has been comparatively low, the steels contas. cobalt-free, chromium-free, and endowed with great cutting power, have been even less popular.
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<Desc / Clms Page number 2>
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The steels known for high speed tools which, on the other hand, have since the beginning of this century replaced due to their great cutting or cutting power the self-hardening ac @@@ previously employed have , in any case, as the main constituent element of chromium and retort another essential constituent element of tungsten or its equivalents and, also recently, cobalt has been frequently used as an additional constituent of these steels for high speed tools .
However, chromium is considered to be an essential building block of all modern high speed tool steels with adequate cutting power or cutting power and is used in all cases. These known steels containing chromium and tungsten with or without the addition of cobalt present difficulties with respect to their practical use as regards their hot machining, their cold shaping or shaping and their heat treatment.
However, it has been found that the cutting power of high speed tool steels containing cobalt without any addition of chromium is in substance the same as that of high speed tool steels containing chromium which have been employed heretofore. , but that the machining or hot working of these chromium-free cobalt steels, their cold working and their heat treatment were much easier and than the difficulties mentioned above and which are encountered in the case of steels. containing chrome for high speed tools are at the very least significantly reduced and to some extent even completely eliminated *
The figures below provide various examples of practice of the present invention. In particular,
the figures provided for the elements which usually accompany iron such as manganese and silicon are given by way of example only and are therefore not limiting *
<Desc / Clms Page number 3>
EMI3.1
8i W¯¯¯¯V. ". No Co. Ta 1. 21 0.21 0.57 22. 9 1.64 0. 56 18. 9 i '2 1; i, x 8) 0.97 0. 55 0.16 19682 rice 1.06 IO.SI 0.17 .., 5) 1.00 0 ,, 5 0.87 .9, ':
1.74 Ob 41 9.40 0.81 '4) 0.88 0.22 0.52 a.8s is 1. 54 0.90 15.54 0. 9? 5) 0.90 traces 0.09 l6.90 0.51 o, 15 ôé 45 o, 69 "the remainder being iron,
It will be noted that the proportion of cobalt can vary in very large understatements. Other constituent elements of the alloy such as, for example, vanadium, molybdenum, tantalum, titanium, uranium, and so on, are either elements which accompany other constituents of the alloy. ge or can be added in suitably higher proportions according to the special uses for which the resulting alloy is intended,
The advantages offered by the present invention are also obtained in the presence of these low percentages of chromium which can be considered as impurities,
Steels according to the present invention can be manufactured in a number of ways well known in the manufacture of high speed tool steels.
Claims (1)
Publications (1)
Publication Number | Publication Date |
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BE365287A true BE365287A (en) |
Family
ID=37608
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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BE365287D BE365287A (en) |
Country Status (1)
Country | Link |
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BE (1) | BE365287A (en) |
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- BE BE365287D patent/BE365287A/fr unknown
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