CN1059328A - A kind of ceramic cutting tool material - Google Patents
A kind of ceramic cutting tool material Download PDFInfo
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- CN1059328A CN1059328A CN 91106453 CN91106453A CN1059328A CN 1059328 A CN1059328 A CN 1059328A CN 91106453 CN91106453 CN 91106453 CN 91106453 A CN91106453 A CN 91106453A CN 1059328 A CN1059328 A CN 1059328A
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- cutting tool
- metal
- titanium
- aluminum oxide
- titanium carbide
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- Cutting Tools, Boring Holders, And Turrets (AREA)
- Compositions Of Oxide Ceramics (AREA)
Abstract
The invention belongs to stupalith, be applicable to and manufacture metal cutting tool, this material selection aluminum oxide is as wear-resisting phase, and wolfram varbide, titanium carbide saturated solid solution are as the hard phase, preferred suitable metal component cobalt (or nickel), molybdenum (or tungsten), aluminium and titanium etc., with the joint of reinforcement material tissue, and add grain growth inhibitor, to stop grain growth, the cutter that this material is made, can process multiple quenched steel, difficult-to-machine materials such as high-strength steel have the higher life-span.Stupalith of the present invention also can be manufactured multiple corrosion-resistant, wear-resisting mechanical component such as nonmetal cutting tool, mould, nozzle, wire-drawing die.
Description
The invention belongs to stupalith, be applicable to and make metal cutting tool.
" Shandong engineering college journal " (the 4th phase of nineteen eighty-two P1-16) delivered one piece of aluminum oxide-titanium carbide-system compound ceramic cutter material.Introduced a kind of ceramic cutting tool material in the data, aluminum oxide-titanium carbide-tungsten, titanium carbide saturated solid solution system.Think that its microtexture is a skeleton organization, it is to form a successive skeleton by the aluminum oxide as wear-resisting phase and form another continuous skeleton as wolfram varbide, the titanium carbide saturated solid solution of hard phase, two skeletons intert mutually equably, thereby be combined into a bulk ceramics, this kind material cuts multiple quenched steel excellent performance.But in microtexture, two skeleton organizations are mainly the static combination, show intensity on the performance.Toughness value is on the low side, and three-point bending resistance intensity is 〉=80kg/mm
2Fracture toughness property is 5.6MPam
(pressing in method), so cutter life is on the low side.
Task of the present invention is kept aluminum oxide exactly as wear-resisting phase, by adding suitable metal ingredient, thereby add the combination of strong carbide skeleton and two skeletons, guaranteeing that hardness satisfies under the prerequisite of service requirements, improve its bending strength and fracture toughness property, increase the shock resistance of cutter, thereby improve the work-ing life of cutter.The present invention has added the cobalt or the nickel of suitable proportioning in the ceramic cutting tool material compositing formula, molybdenum or tungsten, aluminium, titanium metal composition and realize its purpose.
Prescription of the present invention consists of:
Aluminum oxide: be commercially available alpha-crystal form Al
2O
3Or α-Al that thermolysis obtained such as aluminate such as Tai-Ace S 150, aluminium hydroxide, Burow Solution
2O
3, its purity＞99%, granularity＜50 μ m, the 35-65% of shared composition volume ratio.
Carbide: be commercially available wolfram varbide, titanium carbide saturated solid solution.Use sosoloid to be that than the advantage of using wolfram varbide and carbonized titanium powder separately carbide forms sosoloid hardness is increased.And can make partially carbonized thing eliminate graphite, oxide compound and nitride automatically.Its Chemical Composition is Ti22-25%, the total 9.3-9.7% of C, C trip＜0.3%Fe＜0.3%, and all the other are W.Granularity is 2-4 μ m, the 30-60% of shared composition volume ratio.
Metal: can add the metal more than three kinds or three kinds in cobalt or nickel (promptly add cobalt and just can not add nickel, or adding nickel does not just add cobalt), molybdenum or tungsten, aluminium, the titanium metal composition, its purity＞99%.Granularity 250 orders, the 2-8% of shared composition volume ratio, each metal shared weight ratio in metal ingredient is: cobalt or nickel 30-80%, molybdenum or tungsten 10-50%, aluminium 0-20%, titanium 0-20%.
Grain growth inhibitor: grain growth when being used to prevent the stupalith sintering, inhibitor are one or both in magnesium oxide, cobalt oxide, nickel oxide, the titanium oxide, are outer add-on.Addition is the 0.4-1.5% of add aluminum oxide, carbide, three kinds of constituent gross weights of metal.
Stupalith of the present invention adopts following craftwork manufacture:
Each component material is mixed by prescription, pack in the stainless steel ball grinder, adopt steel ball or sintered carbide ball, make ball-milling medium with acetone or dehydrated alcohol, adopt bigger ratio of grinding media to material 5-10 during ball milling: 1, the ball milling time is that the 130-170 hour powder behind the ball milling dried in vacuum drying oven, sieves in nitrogen gas stream after drying finishes, and seals stand-by then.
Pulverize dried powder and can directly put into graphite mo(u)ld at the hot pressing furnace hot pressed sintering or earlier reinstall the graphite mo(u)ld hot pressed sintering after punching block coldmoulding, hot pressing temperature is 1650-1800 ℃, and hot pressing pressure is 200-400kg/cm
2, do protection gas with hydrogen or argon gas, the hot pressing soaking time is 3-20 minute, can directly extrude desired shape, also the material after the hot pressing can be cut into desired shape with diamond saw blade or line.
Embodiment 1, get alumina powder 53%, wolfram varbide, titanium carbide saturated solid solution 44%, metal 3%(is volume ratio), metal is formed weight ratio: cobalt powder 66% molybdenum powder 10%, aluminium powder 14% titanium valve 10%, by gross weight 1000g batching, add magnesium oxide 5g, nickel oxide 4.5g, adopt sintered carbide ball, make ball-milling medium with dehydrated alcohol, in the stainless steel jar mill of packing into, ball milling 160-170 hour, drying and screening then, claim a certain amount of powder hot pressed sintering in the graphite mo(u)ld of packing into, 1750 ℃ of hot pressing temperatures, hot pressing pressure 280kg/cm
2Be incubated 6 minutes, record sintered density 6.63g/cm
3, hardness HRA94, three-point bending resistance intensity 140kg/mm
2, fracture toughness property 6.5MPam
(pressing in method).
Embodiment 2: get alumina powder 50%, and wolfram varbide, titanium carbide saturated solid solution 45%, metal 5%(is volume ratio).Metal group becomes nickel powder 75%, molybdenum powder 15%, titanium valve 10%(is weight ratio) and by gross weight 1000g batching, add magnesium oxide 8.5g, use with embodiment 1 preparation technology 1800 ℃ of hot pressing temperatures, hot pressing pressure 280kg/cm
2, soaking time 8 minutes, recording sintered density is 6.7g/cm
3, hardness HRA93.5, three-point bending resistance intensity 153kg/mm
2, fracture toughness property 6.2MPam
(pressing in method).
Doing the microanalysis of embodiment 1 and 2 two kinds of materials of embodiment knows: its microtexture is a skeleton organization, and aluminum oxide forms a continuous skeleton.Wolfram varbide, titanium carbide-metal form another continuous skeleton, two skeletons intert mutually equably, do not find that by the x ray diffraction cenotype forms, so reinforcing carbide skeleton function is played in the adding of judging metal, the combination of two skeletons destatics outside the combination, metal sticking also plays an important role, and shows that intensity and toughness are all higher on the performance.
Make sintex and commercially available aluminum oxide-titanium carbide-tungsten, titanium carbide is that compound ceramic cutter and aluminum oxide-titanium carbide-titanium-metal are that composite ceramic cutting tool has carried out the cutting contrast experiment with embodiment 1 and embodiment 2.Make end mill ZGMn13(HB190-220) experiment, cutting speed 177m/min, depth of cut 2.5mm amount of feed 0.08mm/ tooth.2 two kinds of cutter material milling life-spans of the embodiment of the invention 1 and embodiment are that commercial alumina-wolfram varbide, titanium carbide are 2-2.5 times of compound ceramic cutter.For commercial alumina-titanium carbide-metal be composite ceramic cutting tool 1.5-2 doubly.Make turning GCr15(quenching HRC55-62) experiment: cutting speed 140m/min, feed 0.084mm/ changes, depth of cut 0.5mm.The embodiment of the invention 1,2 two kinds of cutter materials of example.Cutting feed 9 minutes, its wear of the tool flank VB is 0.31mm, commercial alumina-titanium carbide-metal is that the ceramic tools in cutting feed time is 5.8 minutes.VB is 0.32mm.
The ceramic cutting tool material that the present invention makes can be processed difficult-to-machine materials such as multiple quenched steel, antifriction cast iron and high-strength steel.Ceramic cutting tool material of the present invention also can be used to manufacture multiple corrosion-resistant, wear-resisting mechanical component such as nonmetal cutting tool, mould, nozzle, wire-drawing die.
Claims (2)
1, a kind of ceramic cutting tool material, by aluminum oxide, wolfram varbide, titanium carbide saturated solid solution, grain growth inhibitor is formed, it is characterized in that adding the metal more than three kinds or three kinds in cobalt or nickel, molybdenum or tungsten, the aluminium titanium metal composition, it forms proportioning: aluminum oxide accounts for the 35-65% that forms volume ratio, wolfram varbide, titanium carbide saturated solid solution account for the 30-60% that forms volume ratio, metal ingredient accounts for the 2-8% that forms volume ratio, and grain growth inhibitor added is the 0.4-1.5% of aluminum oxide, wolfram varbide-titanium carbide saturated solid solution and metal gross weight.
2, ceramic cutting tool material according to claim 1 is characterized in that added each metal shared weight ratio in metal ingredient is cobalt or nickel 30-80%, molybdenum or tungsten 10-50%, aluminium 0-20%, titanium 0-20%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91106453 CN1059328A (en) | 1991-06-17 | 1991-06-17 | A kind of ceramic cutting tool material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91106453 CN1059328A (en) | 1991-06-17 | 1991-06-17 | A kind of ceramic cutting tool material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1059328A true CN1059328A (en) | 1992-03-11 |
Family
ID=4907870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91106453 Pending CN1059328A (en) | 1991-06-17 | 1991-06-17 | A kind of ceramic cutting tool material |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100569699C (en) * | 2007-09-28 | 2009-12-16 | 清华大学 | A kind of wiring board or circuit card special ceramic cutter material and preparation method thereof |
| CN102029298A (en) * | 2010-12-22 | 2011-04-27 | 济南大学 | Al2O3/TiC ceramic drawing die and manufacturing method thereof |
| CN1878972B (en) * | 2004-12-10 | 2011-11-02 | 日产自动车株式会社 | Cutting tools and roughened articles using surface roughening methods |
| CN102653467A (en) * | 2012-04-28 | 2012-09-05 | 成都鑫三洋科技发展有限公司 | Ceramic cutter material and preparation method thereof |
| CN111423244A (en) * | 2020-03-27 | 2020-07-17 | 深圳市威泽科技有限公司 | Carbon material for earphone and preparation method thereof |
| CN112760544A (en) * | 2020-12-25 | 2021-05-07 | 湖南天益高技术材料制造有限公司 | Formula and preparation process of high-temperature-resistant vapor chamber for 3D glass hot bending machine |
-
1991
- 1991-06-17 CN CN 91106453 patent/CN1059328A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1878972B (en) * | 2004-12-10 | 2011-11-02 | 日产自动车株式会社 | Cutting tools and roughened articles using surface roughening methods |
| CN100569699C (en) * | 2007-09-28 | 2009-12-16 | 清华大学 | A kind of wiring board or circuit card special ceramic cutter material and preparation method thereof |
| CN102029298A (en) * | 2010-12-22 | 2011-04-27 | 济南大学 | Al2O3/TiC ceramic drawing die and manufacturing method thereof |
| CN102029298B (en) * | 2010-12-22 | 2013-03-06 | 济南大学 | Al2O3/TiC ceramic drawing die and manufacturing method thereof |
| CN102653467A (en) * | 2012-04-28 | 2012-09-05 | 成都鑫三洋科技发展有限公司 | Ceramic cutter material and preparation method thereof |
| CN111423244A (en) * | 2020-03-27 | 2020-07-17 | 深圳市威泽科技有限公司 | Carbon material for earphone and preparation method thereof |
| CN112760544A (en) * | 2020-12-25 | 2021-05-07 | 湖南天益高技术材料制造有限公司 | Formula and preparation process of high-temperature-resistant vapor chamber for 3D glass hot bending machine |
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