CN1222942A - Use of steel for cutting tool holders - Google Patents

Use of steel for cutting tool holders Download PDF

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Publication number
CN1222942A
CN1222942A CN97195775.4A CN97195775A CN1222942A CN 1222942 A CN1222942 A CN 1222942A CN 97195775 A CN97195775 A CN 97195775A CN 1222942 A CN1222942 A CN 1222942A
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Prior art keywords
described steel
application
steel
steel contains
content
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Granted
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CN97195775.4A
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Chinese (zh)
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CN1070929C (en
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S·冈纳森
B·赖德尔
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Uddeholms AB
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Uddeholms AB
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    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/24—Ferrous alloys, e.g. steel alloys containing chromium with vanadium

Abstract

The invention relates to a steel containing in weight-%: 0.3-0.5 C, from traces to max. 1.5 Si, 0.2-1.5 Mn, max. 0.03 P, preferably max. 0.025 P, 0.01-0.2 S, 4-7 Cr, from traces to max. 1 Ni, 0.5-2.0 Mo, which can completely or partly be replaced by the double amount W, from traces to max. 1 Co, 0.2-1.5 V, from traces to max. 0.5 Nb, from traces to a total of max. 0.2 % of rare earth metals, balance essentially iron, impurities and accessory elements in normal amounts, as a material for cutting tool holders.

Description

The application of a kind of steel on tool mounting
The present invention relates to a kind of application with steel that is used as the tool mounting material of specific composition.
Tool mounting is that cutter head connects thereon or parts wherein, and wherein cutter head is the real work part in mechanical processing process.Cutter hub and drilling rod are typical tool mountings, and they have the cemented carbide member that is used for effective mechanical workout.Normally a kind of steel that is called the anchor clamps steel in the art of material as this tool mounting.The anchor clamps steel should satisfy multiple requirement:
-tool mounting, for example cutter hub and drilling rod often have complicated profile, and the topmost mechanical workout of described tool mounting are carried out when steel is in soft annealed condition.Yet used steel must be able to harden by air cooling, and in quenching process, noticeable change does not take place size.
-some tool mountings are modifier treatment, and its surface that links to each other with carbide bit is induction hardened.Therefore, applied material must be can be induction hardened.
-the processing speed of carrying out mechanical workout by cutting improves constantly, and this makes tool mounting can become awfully hot.Therefore, require described material must possess good hot hardness.
The tool mounting of-some kind, for example some has the drilling rod of the inserted drill that connects with soldering, will carry out PVD (physical vapor deposition) plating after carrying out quench treatment, so that the drill bit spiral on the drilling rod that do not wear and tear in the boring working angles.Therefore, described material must can carry out the PVD plating, does not cause hardness significantly to reduce again.
The tool mounting of-some type, for example cutter hub will stand high pulsed load when using.Therefore, described material must possess good mechanical property, comprises good toughness and fatigue strength.
The tool mounting of-many types has complicated profile.There are tiny threaded hole and length and thin boring through regular meeting.Therefore, described material should have good machining property, when especially using speedy steel cutting-tool.
Low Alloy Tool Steel or interalloy tool steel are used as the tool mounting material.List the composition of several typical anchor clamps in the following table with steel.Except the element in weight % shown in the table, described steel only contains iron, impurity and subsidiary element.There is not a kind of known anchor clamps steel can reach above-mentioned specific requirement with being entirely satisfactory.
Reference steel ???C ???Si ??Mn ????S ?Cr ???Ni ???Mo ??V
????1 ??0.52 ??0.3 ??0.8 Maximum 0.035 ?1.0 ???- ???- ??1.15
????2 ??0.42 ??0.3 ??0.8 Maximum 0.035 ?1.0 ???- ???- ???-
????3 ??1.0 ??1.5 ??0.8 Maximum 0.020 ?1.0 ???- ???- ???-
????4 ??0.45 ??0.28 ??0.64 ??0.012 ?0.8 ??1.8 ??0.25 ???-
????5 ??0.55 ??0.28 ??0.75 ??0.023 ?0.93 ??0.10 ???- ??0.015
????6 ??0.51 ??0.30 ??0.39 ??0.002 ?0.94 ??2.95 ??0.25 ???-
????7 ??0.40 ??0.27 ??0.81 ????- ?0.90 ??0.16 ???- ???-
????8 ??0.50 ??1.12 ??1.0 ??0.001 ?3.10 ???- ??0.88 ??0.49
????9 ??0.36 ??0.22 ??0.77 ??0.013 ?1.1 ??0.10 ??0.17 ???-
The invention provides a kind of steel alloy that can be used as tool mounting with material, it satisfies described requirement more satisfactorily than prior art steel.The composition of this steel provides in appended claims.The invention still further relates to the tool mounting of making by described steel.
Below will explain the effect of each element and the interaction between them.All percentage ratio when relating to the chemical constitution of described steel, all refers to weight %.
Carbon, its content should be at least 0.3%, and preferably at least 0.35%, appropriate vol is at least 0.37%, so that described steel obtains satisfied hardness and intensity.Carbon content should not surpass 0.5%, preferably be no more than 0.45%, and appropriate vol is to be no more than 0.41%.When carbon content was higher, it is too hard and crisp that steel becomes.Contain 0.39% C in the typically described steel.
Silicon, its content can be from trace to maximum 1.5%, but should contain at least 0.40% silicon in the preferred steel.Silicon in the steel is in solid solution condition, but also can exist with silicon-calcium oxide form, at this moment this oxide compound preferably comes modification with sulphur again, formation sulfide covers and makes it on the described oxide compound is plasticity basically, when wherein said inclusion carries out mechanical workout at described steel, can play lubricant film.Preferably, described steel should not contain and surpass 1.2% Si.The preferable range of Si content is 0.7%～0.9% or 0.6%～0.8%.Typically (name) Si content is 0.7%.
Manganese, its content should be at least 0.2%, improving the resistance to tempering of described steel, and when described steel contains more sulphur, prevents the red brittleness of described steel by the formation of manganese sulfide.Yet described steel should not contain and surpass 1.5% manganese, the manganese of preferred content maximum 1.0%.Particularly preferred manganese content range is 0.3～0.5%.Optimal manganese content is 0.4%.
Sulphur, its content should be at least 0.01%, to give the sufficient mechanism of described steel processing characteristics.The highest S content should not surpass 0.2% in this steel.If sulphur content is higher, then exist and hot short danger occurs, and this can not remedies fully by correspondingly increasing manganese content.Preferably, the highest S content should not surpass 0.05% in the described steel.Preferred sulphur content is between 0.01～0.03%.Typically (name) sulphur content is 0.02%.
Chromium, its content should be between 4～7%, to give this steel good hardenability in steel.Preferably contain 4.5～5.5% chromium; Typically contain 5.0% chromium.
Nickel is not a kind of important element in described steel, but allows to contain at most 1%, preferably contains 0.5% nickel at most.
Molybdenum can improve the hardenability and the resistance to tempering of described steel, and take this to improve its hot hardness, so molybdenum content should be 0.5% at least; At the most 2.0%.Preferable molybdenum content is 1.2%, and preferred range is 1.2～1.6%.Usually, described steel contains 1.4% molybdenum.Substantially, molybdenum can replace wholly or in part with the tungsten of twice content.Yet tungsten is a kind of alloying element of costliness, and the treating processes that it also makes steel scrap reclaim becomes complicated.Therefore, should avoid W content to surpass the content of regarding as impurity.
Cobalt for the reason identical with tungsten, should not be present in the described steel, but tolerable contains maximum 1.0% cobalt, and preferred content at most is 0.05%.
Vanadium helps the resistance to tempering and the tear strength of described steel, and its content should be at least 0.2% in described steel, but should not surpass 1.5%.Preferably, content of vanadium should be between 0.6～1.3%, and suitable scope is between 0.8～1.1%; Typical content of vanadium is 0.95%.
Described steel also may contain the oxygen and the calcium of significant quantity, more specifically is to contain the oxygen of 50～100ppm and the calcium of 5-75ppm, forms calcium oxide so that interaction to take place, and as previously mentioned, calcium oxide can carry out modification by sulphur.
Niobium, a carbonitride of formation indissoluble, its content should not surpass 0.5%.Preferably, content of niobium should not surpass the level of impurity.Titanium, zirconium, aluminium and other strong carbide and/or nitride forming element also are not wish the impurity that exists, so their content should not surpass impurity level yet.
Rare earth element, as described in also may adding to as cerium, lanthanum and other rare earth element in the steel, so that steel has isotropic characteristic, ideal machinability, good mechanical property and good hot workability.The total content of rare earth metal can be 0.4% at most, preferably mostly is most 0.2%.
Name (typically) is composed as follows: the C of 0.37-0.41, the Si of 0.40-1.20, the Mn of 0.30-0.50, maximum 0.025 P, the S of 0.010-0.030, the Cr of 5.00-5.30, maximum 0.25 Ni, the Mo of 1.25-1.50, maximum 0.20 W, maximum 0.20 Co, the V of 0.90-1.00, maximum 0.005 Ti, maximum 0.030 Nb, maximum 0.25 Cu, maximum 0.020 Al, the Ca of 5-50ppm, the O of 60-90ppm, all the other are iron.
Described steel carries out quench hardening from the austenitizing temperature between 860-1100 ℃, preferably between 960-1050 ℃, wherein, in described temperature range according to desired hardness selective quenching temperature.When quenching under a certain temperature in the low-temperature zone of described steel between 960-1050 ℃, especially when 960 ℃ or high slightly temperature are quenched, before tempering, just may obtain the hardness of 48HRC; If under a certain temperature in the high temperature section of described steel between 960-1050 ℃, promptly 1050 ℃ or near 1050 ℃ under when quenching, just may obtain the hardness of 54HRC before the tempering.Temper can be carried out low-temperaturetempering between 180-250 ℃, or the temperature between 550-600 ℃ carries out high tempering, to obtain high rigidity and good toughness.Accompanying drawing has been showed after the differing temps between 960-1025 ℃ is quenched, a kind of typical tempering curve of steel of the present invention.
More elaborate the present invention below with reference to the experiment of being carried out.
Refined the steel of a plurality of heats with table 1 composition.The content of each element is meant in the steel ingot of being produced the mean value of observed value on the different sites in the given composition.In the table 1, also comprised the composition of contrast material SS2242.The content of described contrast material is nominal content.The content of phosphorus, sulphur, aluminium, nitrogen, calcium and oxygen is not mentioned.For all material, except impurity or the subsidiary element mentioned in the table, all the other content are the impurity of iron and normal contents.
Also show the test-results of the machining property that the material that is in soft annealed condition is carried out in the table 1.Shown value is meant the circumferential speed (mean value) of drill bit, and drill bit rotates so that drill bit can reach total drilling length of 1000mm before grinding away with this speed.Gave before drill bit is ground away the hole count that may be drilled in the described table with 30 meters/minute speed rotation.
Table 1
Form, in weight %
Heat ??C ??Si ?Mn ?P ?S ?Cr ?Mo ?V ?Al ?N ?Ca Oppm Adopt the drilling V of High Speed Steel Bit 1000Rice/minute At V c=30 meters/minute the hole count that is drilled to
Compared steel ?.39 ??1.0 .40 .0007 ?5.3 ?1.3 ?.9 .0000 ?4 ?27 ?24
?DV42700 ?.39 ??1.03 .40 .017 .022 ?5.2 ?1.3 ?.9 .007 .021 .002 ?35 ?31 224
?DV42858 ?.41 ??.90 .43 .016 .023 ?5.1 ?1.3 ?.9 .001 .025 .0005 ?22 ?34 ＞800
?DV42954 ?.44 ??.98 .40 .016 .027 ?5.2 ?1.3 ?.9 .001 .033 .0006 ?15 ?30 80
?DV43521 ?.44 ??.45 .41 .014 .026 ?5.2 ?1.3 ?1.0 .016 .029 .002 ?31 ?47 ＞800
?DV43734 ?.36 ??.48 .39 .015 .026 ?5.4 ?1.3 ?.94 .011 .023 .009 ?109 ?42 ＞800
?DV44136 ?.41 ??.62 .42 .017 .029 ?5.2 ?1.3 ?1.0 .018 .019 .003 ?75 ?39 ＞800
?DV44569 ?.40 ??.43 .41 .015 .031 ?5.5 ?1.3 ?1.0 .005 .022 .007 ?57 ?39 ＞800
?DV44610 ?.40 ??.70 .39 .014 .024 ?5.2 ?1.3 ?1.0 .005 .020 .009 ?74 ?39 ＞800

Claims (16)

1. application as the steel of tool mounting material, wherein said steel contains (weight %):
0.3-0.5 C, from the Si of trace to maximum 1.5, the Mn of 0.2-1.5, maximum 0.03 P preferably contains 0.025 P at the most, the S of 0.01-0.2, the Cr of 4-7 is from the Ni of trace to maximum 1, the Mo of 0.5-2.0, the W that Mo can be twice content replaces wholly or in part, from the Co of trace to maximum 1, the V of 0.2-1.5 is from the Nb of trace to maximum 0.5, total content is from the rare earth metal of trace to maximum 0.2%, and surplus is essentially iron, impurity and the subsidiary element of normal contents.
2. according to the application of claim 1, wherein, described steel contains the carbon of 0.35-0.45.
3. according to the application of claim 2, wherein, described steel contains the carbon of 0.37-0.41.
4. according to the application of claim 1, wherein, described steel contains the silicon of 0.4-1.2.
5. according to the application of claim 4, wherein, described steel contains the silicon of 0.7-0.9.
6. according to the application of claim 4, wherein, described steel contains the silicon of 0.6-0.8.
7. according to the application of claim 1, wherein, described steel contains the manganese of 0.2-1.0.
8. according to the application of claim 7, wherein, described steel contains the manganese of 0.3-0.5.
9. according to the application of claim 1, wherein, described steel contains 0.01-0.05, is preferably the sulphur of 0.01-0.03.
10. according to the application of claim 1, wherein, described steel contains the chromium of 4.5-5.5.
11. according to the application of claim 1, wherein, described steel contains the molybdenum of 1-2.
12. according to the application of claim 11, wherein, described steel contains the molybdenum of 1.2-1.6.
13. according to the application of claim 1, wherein, described steel contains the vanadium of 0.6-1.3, preferably contains the vanadium of 0.8-1.1.
14. according to the application of claim 1, wherein, described steel contains the oxygen of 50-100ppm and the calcium of 5-75ppm.
15. according to the application of claim 1, wherein, described steel contains total content and is at most 0.4% rare earth metal.
16. by having according to each the made tool mounting of the steel of forming in the aforementioned claim.
CN97195775A 1996-06-25 1997-06-23 Use of steel for cutting tool holders Expired - Lifetime CN1070929C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE9602494-8 1996-06-25
SE96024948 1996-06-25
SE9602494A SE507851C2 (en) 1996-06-25 1996-06-25 Use of a steel as a material for cutting tool holders

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CN1222942A true CN1222942A (en) 1999-07-14
CN1070929C CN1070929C (en) 2001-09-12

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JP (1) JP4210331B2 (en)
CN (1) CN1070929C (en)
AT (1) ATE207977T1 (en)
AU (1) AU709145C (en)
DE (1) DE69707883T2 (en)
ES (1) ES2164356T3 (en)
HK (1) HK1020360A1 (en)
SE (1) SE507851C2 (en)
WO (1) WO1997049838A1 (en)

Cited By (4)

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CN102212760A (en) * 2011-06-10 2011-10-12 钢铁研究总院 Steel with high toughness and ultrahigh strength
CN105132827A (en) * 2015-09-09 2015-12-09 南京工程学院 High hot-strength forged steel material used for obtaining ultra-fine composite-scale carbides
CN105886933A (en) * 2016-05-12 2016-08-24 天津钢研海德科技有限公司 High tempering softness resistance and high tenacity hot-work die steel and manufacturing method thereof
CN108385025A (en) * 2018-04-09 2018-08-10 武汉科技大学 A kind of Slab Deburring Machine blade and its manufacturing method

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FR2782465B1 (en) * 1998-08-20 2000-11-10 Stephane Badot KNIFE FOR A KNIFE HOLDER OF A GRANULATING DEVICE FOR PLASTIC MATERIALS, AS WELL AS KNIFE HOLDER AND GRANULATING DEVICE COMPRISING SUCH A KNIFE
SE515624C2 (en) 1999-11-02 2001-09-10 Ovako Steel Ab Air-curing low- to medium-carbon steel for improved heat treatment
JP5868704B2 (en) * 2008-07-24 2016-02-24 シーアールエス ホールディングス, インコーポレイテッドCrs Holdings, Incorporated High strength and high toughness steel alloy
PT2896713T (en) 2014-01-16 2016-07-07 Uddeholms Ab Stainless steel and a cutting tool body made of the stainless steel
CN105714203B (en) * 2016-04-20 2017-12-08 上海瀚氏模具成型有限公司 A kind of preparation method of making Nano surface high-strength temperature-resistant steel mold
CN105734441B (en) * 2016-04-20 2017-10-03 上海瀚氏模具成型有限公司 A kind of preparation method of nanosizing low-alloy heat-resistant high-strength steel mould
TWI756226B (en) 2016-06-30 2022-03-01 瑞典商伍德赫爾恩股份有限公司 A steel for a tool holder

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SE426177B (en) * 1979-12-03 1982-12-13 Uddeholms Ab Hot work tool steel
AT396560B (en) * 1992-05-06 1993-10-25 Boehler Ybbstalwerke METAL SAW BLADE WITH HIGH FLEXIBILITY AND HIGH CUTTING PERFORMANCE

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102212760A (en) * 2011-06-10 2011-10-12 钢铁研究总院 Steel with high toughness and ultrahigh strength
CN105132827A (en) * 2015-09-09 2015-12-09 南京工程学院 High hot-strength forged steel material used for obtaining ultra-fine composite-scale carbides
CN105132827B (en) * 2015-09-09 2017-03-29 南京工程学院 A kind of high heat-intensity forged steel material for obtaining ultra tiny compound yardstick carbide
CN105886933A (en) * 2016-05-12 2016-08-24 天津钢研海德科技有限公司 High tempering softness resistance and high tenacity hot-work die steel and manufacturing method thereof
CN105886933B (en) * 2016-05-12 2021-04-30 天津钢研海德科技有限公司 Hot work die steel with high tempering softening resistance and high toughness and manufacturing method thereof
CN108385025A (en) * 2018-04-09 2018-08-10 武汉科技大学 A kind of Slab Deburring Machine blade and its manufacturing method

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AU3469397A (en) 1998-01-14
CN1070929C (en) 2001-09-12
SE9602494D0 (en) 1996-06-25
AU709145C (en) 2001-10-18
WO1997049838A1 (en) 1997-12-31
DE69707883T2 (en) 2002-04-25
EP0912773A1 (en) 1999-05-06
ATE207977T1 (en) 2001-11-15
AU709145B2 (en) 1999-08-19
JP2000514500A (en) 2000-10-31
SE9602494L (en) 1997-12-26
DE69707883D1 (en) 2001-12-06
HK1020360A1 (en) 2000-04-14
JP4210331B2 (en) 2009-01-14
SE507851C2 (en) 1998-07-20
ES2164356T3 (en) 2002-02-16
EP0912773B1 (en) 2001-10-31

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