CN104999144A - Cutter for EDM (Electric Discharge Machining) machine tool - Google Patents
Cutter for EDM (Electric Discharge Machining) machine tool Download PDFInfo
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- CN104999144A CN104999144A CN201510479488.5A CN201510479488A CN104999144A CN 104999144 A CN104999144 A CN 104999144A CN 201510479488 A CN201510479488 A CN 201510479488A CN 104999144 A CN104999144 A CN 104999144A
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- Prior art keywords
- cutter
- machine tool
- spark
- erosion machine
- alloy
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
- B23H1/00—Electrical discharge machining, i.e. removing metal with a series of rapidly recurring electrical discharges between an electrode and a workpiece in the presence of a fluid dielectric
- B23H1/04—Electrodes specially adapted therefor or their manufacture
- B23H1/06—Electrode material
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Cutting Tools, Boring Holders, And Turrets (AREA)
Abstract
The invention discloses a cutter for an EDM (Electric Discharge Machining) machine tool. The cutter for the EDM machine tool comprises the following components: polycrystalline cubic boron nitride, high temperature alloy and hard alloy, wherein the hard alloy is tungsten steel; the polycrystalline cubic boron nitride accounts for 17%-24% of the total weight of the cutter for the EDM machine tool; the high temperature alloy accounts for 33%-38% of the total weight of the cutter for the EDM machine tool; the hard alloy accounts for 42%-46% of the total weight of the cutter for the EDM machine tool. The cutter for the EDM machine tool, provided by the invention, has the advantages of being ultrahigh in abrasion resistance, impact resistance and thermal hardness.
Description
Technical field
The present invention relates to a kind of cutter for spark-erosion machine tool.
Background technology
Germany just started and studied the security technique of high-speed milling cutter early 1990s, and worked out DIN6589-1 " safety requirements of high-speed milling cutter " draft standard, define test method and the standard of high-speed milling cutter inefficacy, the guiding suggestion propose high-speed milling cutter design technically, manufacturing and use, defines unified safety examination method.This draft standard has become the directive document of various countries' high-speed milling cutter security.
Draft standard defines the speed envelope of high-speed cutting, and after exceeding this speed, centrifugal force will become the Main Load of milling cutter, must adopt safe practice.In tool diameter and high-speed cutting scale relationships figure, the above region of curve is the high-speed cutting scope that milling cutter that this standard specifies has to pass through safety verification: for the single-piece cutter (overall or brazed shank tool) of diameter d 1≤32mm, its cutting speed is high-speed cutting scope more than 10000m/mm; For the assembled mechanical clamped cutting tool of diameter d 1>32mm, high-speed cutting scope is the above region of line segment BC.
The Safe Failure form of high-speed milling cutter has two kinds: be out of shape and break.The safety test method of dissimilar milling cutter is also different.For machine clip variable-position milling cutter, there are two kinds of safety test methods: a kind of method tests under 1.6 times of maximum use rotating speeds, and the permanent deformation of cutter or the displacement of part are no more than 0.05mm; Another kind method tests under maximum use rotating speed at 2 times, cutter does not break (screw comprising clamping blade is cut off, blade or other clamping elements are flown by getting rid of, the explosion etc. of cutter hub).And for monoblock type milling cutter, then must 2 times under maximum use speed conditions test and do not bend or rupture.
Summary of the invention
The invention provides a kind of cutter for spark-erosion machine tool with the shock-resistant and thermohardening advantage of super-high wear-resistant, superelevation.
Technical scheme of the present invention is: a kind of cutter for spark-erosion machine tool, the described cutter for spark-erosion machine tool is combined by polycrystalline cubic boron nitride, high temperature alloy and carbide alloy, described carbide alloy is wolfram steel, described polycrystalline cubic boron nitride occupies the 17%-24% of the overall component of cutter of spark-erosion machine tool, described high temperature alloy occupies the 33%-38% of the overall component of cutter of spark-erosion machine tool, and described carbide alloy occupies the 42%-46% of the overall component of cutter of spark-erosion machine tool.
In a preferred embodiment of the present invention, described high temperature alloy is nickel base superalloy.
In a preferred embodiment of the present invention, described polycrystalline cubic boron nitride occupies 21% of the overall component of cutter of spark-erosion machine tool, described high temperature alloy occupies 34% of the overall component of cutter of spark-erosion machine tool, and described carbide alloy occupies 45% of the overall component of cutter of spark-erosion machine tool.
A kind of cutter for spark-erosion machine tool of the present invention, has the advantage of the shock-resistant and thermohardening of super-high wear-resistant, superelevation.
Detailed description of the invention
Below preferred embodiment of the present invention is described in detail, can be easier to make advantages and features of the invention be readily appreciated by one skilled in the art, thus more explicit defining is made to protection scope of the present invention.
Wherein, the described cutter for spark-erosion machine tool is combined by polycrystalline cubic boron nitride, high temperature alloy and carbide alloy, described carbide alloy is wolfram steel, described polycrystalline cubic boron nitride occupies the 17%-24% of the overall component of cutter of spark-erosion machine tool, described high temperature alloy occupies the 33%-38% of the overall component of cutter of spark-erosion machine tool, and described carbide alloy occupies the 42%-46% of the overall component of cutter of spark-erosion machine tool.
Further illustrate, described high temperature alloy is nickel base superalloy, described polycrystalline cubic boron nitride occupies 21% of the overall component of cutter of spark-erosion machine tool, described high temperature alloy occupies 34% of the overall component of cutter of spark-erosion machine tool, and described carbide alloy occupies 45% of the overall component of cutter of spark-erosion machine tool.
Further illustrating, wolfram steel (carbide alloy) has that hardness is high, wear-resisting, intensity and a series of premium properties such as toughness is better, heat-resisting, corrosion-resistant, particularly its high rigidity and wearability, even if also substantially remain unchanged at the temperature of 500 DEG C, still have very high hardness 1000 DEG C time.Wolfram steel, is also called carbide alloy, refers to the sintered composite materials at least containing a kind of metal carbides composition.Tungsten carbide, cobalt carbide, niobium carbide, titanium carbide, ramet is the common ingredients of wolfram steel.The crystallite dimension of carbide component (or phase) is usually between 0.2-10 micron, and carbide grain uses metal adhesive to combine.Binding agent typically refers to metallic cobalt (Co), but to some special purposes, nickel (Ni), iron (Fe), or other metal and alloy also can use.Composition combination for a carbide undetermined and Binder Phase is referred to as " trade mark ".The classification of wolfram steel is carried out according to iso standard.The foundation of this classification is the material species (as P, M, K, N, S, the H trade mark) of workpiece.Binder Phase composition mainly utilizes its intensity and corrosion resistance.The matrix of wolfram steel is made up of two parts: a part is sclerosis phase; Another part is binding metal.Binding metal is generally iron group metal, and conventional is cobalt, nickel.Therefore tungsten-cobalt alloy, tungsten nickel and tungsten titanium-cobalt alloy has just been had.The steel of tungstenic, such as high-speed steel and some hot die steel, in steel, tungstenic has steel hardness and heat resistance and improves very significantly, but toughness can sharply decline.The main application of tungsten resource is also carbide alloy, namely wolfram steel.Carbide alloy, is called as the tooth of modern industry, and the usage degree of tungsten steel product widely.
Further illustrating, nickel-base alloy is most widely used in high temperature alloy, that elevated temperature strength the is the highest class alloy.Its main cause, one is can dissolve more alloying element in nickel-base alloy, and can keep good structure stability; Two is can form the orderly A3B type intermetallic compound γ ' [Ni3 (Al, Ti)] of coherence as hardening constituent, and alloy is effectively strengthened, and obtains than iron-base superalloy and the higher elevated temperature strength of cobalt base superalloy; Three is that the nickel-base alloy containing chromium has anti-oxidant and resistance to combustion gas corrosion ability more better than iron-base superalloy.Nickel-base alloy contains ten multiple elements, and wherein Cr mainly plays anti-oxidant and anticorrosive effect, and other elements mainly play invigoration effect.Invigoration effect mode according to them can be divided into: solution strengthening element, as tungsten, molybdenum, cobalt, chromium and vanadium etc.; Precipitation-strengthening element, as aluminium, titanium, niobium and tantalum; Boundary-strengthening element, as boron, zirconium, magnesium and rare earth element etc.Nickel base superalloy has solution strengthening type alloy and precipitation strength type alloy by schedule of reinforcement.There is certain elevated temperature strength, good is anti-oxidant, corrosion and heat resistant, anti-hot and cold fatigue behaviour, and have good plasticity and weldability etc., can be used for manufacturing that operating temperature is higher, the parts of meet with stresses little (every square millimeter of a few kgf, in table 1), as the combustion chamber of gas turbine.Usually solution strengthening, precipitation strength and intercrystalline strengthening three kinds of schedule of reinforcements are comprehensively adopted, thus there is good high temperature creep strength, anti-fatigue performance, anti-oxidant and hot corrosion resistance, meet with stresses under can be used for making high temperature higher (more than every square millimeter of tens kgfs, in table 2) parts, as the turbo blade, the turbine disk etc. of gas turbine.The invention provides a kind of cutter for spark-erosion machine tool, there is the advantage of the shock-resistant and thermohardening of super-high wear-resistant, superelevation.
The specific embodiment of the present invention; but protection scope of the present invention is not limited thereto; any those of ordinary skill in the art are in the technical scope disclosed by the present invention, and the change can expected without creative work or replacement, all should be encompassed within protection scope of the present invention.Therefore, the protection domain that protection scope of the present invention should limit with claims is as the criterion.
Claims (3)
1. the cutter for spark-erosion machine tool, it is characterized in that: the described cutter for spark-erosion machine tool is combined by polycrystalline cubic boron nitride, high temperature alloy and carbide alloy, described carbide alloy is wolfram steel, described polycrystalline cubic boron nitride occupies the 17%-24% of the overall component of cutter of spark-erosion machine tool, described high temperature alloy occupies the 33%-38% of the overall component of cutter of spark-erosion machine tool, and described carbide alloy occupies the 42%-46% of the overall component of cutter of spark-erosion machine tool.
2. the cutter for spark-erosion machine tool according to claim 1, is characterized in that: described high temperature alloy is nickel base superalloy.
3. the cutter for spark-erosion machine tool according to claim 1, it is characterized in that: described polycrystalline cubic boron nitride occupies 21% of the overall component of cutter of spark-erosion machine tool, described high temperature alloy occupies 34% of the overall component of cutter of spark-erosion machine tool, and described carbide alloy occupies 45% of the overall component of cutter of spark-erosion machine tool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510479488.5A CN104999144A (en) | 2015-08-07 | 2015-08-07 | Cutter for EDM (Electric Discharge Machining) machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510479488.5A CN104999144A (en) | 2015-08-07 | 2015-08-07 | Cutter for EDM (Electric Discharge Machining) machine tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104999144A true CN104999144A (en) | 2015-10-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510479488.5A Pending CN104999144A (en) | 2015-08-07 | 2015-08-07 | Cutter for EDM (Electric Discharge Machining) machine tool |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105214796A (en) * | 2015-11-12 | 2016-01-06 | 张磊 | A kind of crush maize agricultural machinery |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1524050A2 (en) * | 2003-10-13 | 2005-04-20 | Imperial College Innovations Limited | Wear-resisting surface structure |
| JP2012179674A (en) * | 2011-03-01 | 2012-09-20 | Mitsubishi Materials Corp | cBN INSERT |
| CN102794448A (en) * | 2012-07-30 | 2012-11-28 | 中南钻石股份有限公司 | Nanometal bonding agent and polycrystal CBN (cubic boron nitride) composite sheet made by using same |
| CN202639371U (en) * | 2012-02-27 | 2013-01-02 | 郑州市钻石精密制造有限公司 | Polycrystalline cubic boron nitride (PCBN) cutter for machining cylinder body |
| CN103801918A (en) * | 2012-11-08 | 2014-05-21 | 三菱综合材料株式会社 | Cubic crystal boron nitride ultrahigh-pressure sintering material blade making piece |
-
2015
- 2015-08-07 CN CN201510479488.5A patent/CN104999144A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1524050A2 (en) * | 2003-10-13 | 2005-04-20 | Imperial College Innovations Limited | Wear-resisting surface structure |
| JP2012179674A (en) * | 2011-03-01 | 2012-09-20 | Mitsubishi Materials Corp | cBN INSERT |
| CN202639371U (en) * | 2012-02-27 | 2013-01-02 | 郑州市钻石精密制造有限公司 | Polycrystalline cubic boron nitride (PCBN) cutter for machining cylinder body |
| CN102794448A (en) * | 2012-07-30 | 2012-11-28 | 中南钻石股份有限公司 | Nanometal bonding agent and polycrystal CBN (cubic boron nitride) composite sheet made by using same |
| CN103801918A (en) * | 2012-11-08 | 2014-05-21 | 三菱综合材料株式会社 | Cubic crystal boron nitride ultrahigh-pressure sintering material blade making piece |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105214796A (en) * | 2015-11-12 | 2016-01-06 | 张磊 | A kind of crush maize agricultural machinery |
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Application publication date: 20151028 |
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