CN110066974A - The method and device of intensive treatment hard alloy cutter under electromagnetic coupling outer field action - Google Patents
The method and device of intensive treatment hard alloy cutter under electromagnetic coupling outer field action Download PDFInfo
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- CN110066974A CN110066974A CN201910342448.4A CN201910342448A CN110066974A CN 110066974 A CN110066974 A CN 110066974A CN 201910342448 A CN201910342448 A CN 201910342448A CN 110066974 A CN110066974 A CN 110066974A
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D10/00—Modifying the physical properties by methods other than heat treatment or deformation
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F3/00—Changing the physical structure of non-ferrous metals or alloys by special physical methods, e.g. treatment with neutrons
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Abstract
The invention discloses a kind of method and devices of intensive treatment hard alloy cutter under electromagnetic coupling outer field action, hard alloy cutter is placed in Electromagnetic Treatment device, by applying impulse electric field and pulsed magnetic field simultaneously to cutter, it is acted on using electromagnetic coupling, hard alloy internal structural flaw is repaired by the intensive treatment of hard alloy cutter, cutting-tool's used life is extended while promoting the cutting ability of cutter, and then reduces production cost.
Description
Technical field
The invention belongs to technical field of material modification, are related to the processing of metal cutting tool material reinforcement, and in particular to a kind of
The method and device of intensive treatment hard alloy cutter under electromagnetic coupling outer field action.
Background technique
Metal cutting technology is the mainstay of machine industry, and the superiority and inferiority of cutter material also directly affects whole
The height of a machine building industry production technology level and economic benefit.Excavating tool cutting ability to the maximum extent slows down knife
Tool abrasion, extends cutter service life, improves the emphasis that workpiece to be machined surface quality is always this field research.Cutter is being cut
To be born during cutting high temperature, high pressure, friction, impact effect, therefore cutter material must satisfy certain performance requirement, main
It include: high rigidity, high-wearing feature, enough intensity and impact flexibility, high-fire resistance, good craftsmanship and economy etc..
Now with manufacturing industry transition and upgrade, cutting tool also faces performance upgrade, however low side standard cutter production capacity mistake
Surplus, the cutter production capacity wretched insufficiency of function admirable still needs to based on import cutter.Therefore, import cutter is in the high-end need of manufacturing industry
Field is asked still to dominate.
According to statistics, annual tool wear is up to hundreds billion of dollars to the loss of global economy bring.Abundant excavating tool
Cutting ability, the abrasion for slowing down cutter, the working ability for improving cutter are to reduce production cost, guarantee product quality, improve life
One important channel of yield, has got growing concern at present, and explores a variety of effective techniques in production practice
Method.Wherein, it is one of research direction to cutter material modification, can be improved low side standard cutter cutting ability, meets
The process requirements of hardly possible processing part, while high-end cutter physical characteristic can be optimized, it prolongs its service life.
Modified cutter material is usually to be realized by enhanced processing methods such as heat treatment and coatings, one side coating and knife
The associativity of tool material surface is difficult to be effectively ensured, so that the cutting ability and service life of cutter are influenced, on the other hand at heat
Reason process easily causes cutter distortion, equally also can cutting ability to cutter and service life generation seriously affect.
Magnetization technology is a kind of technological means of non-temperature adjusting ferrimagnet structure property, it is not only metal surface
Reinforcing, and be whole reinforcing.Outer field technology is the emerging technology of manufacturing field, including magnetic field, electric field, microwave field, super
Sound wave etc. is commonly applied to metal metallurgy smelting and metal-modified processing, such as magnetization technology is a kind of non-temperature adjusting ferrimagnet
The technological means of structure property, it is not only the reinforcing of metal surface, and is whole reinforcing.Outer field technology is used for cutter material
Expect that modification is a new research direction, technology is still immature, reports at present less.
Summary of the invention
For modified effect is poor, easily makes cutter distortion, service life present in the modification of current sintered carbide tool material
The problems such as short, first purpose of the invention are to provide a kind of side of intensive treatment hard alloy cutter under electromagnetic coupling outer field action
Method, using electromagnetic coupling Spot repair cutter interior tissue defects, so as to improve cutter cutting ability (as reduce cutting force,
Enhance cutter wear-resisting property etc.), improve cutter life, and reduce the influence of thermal deformation bring.
Second purpose of the invention is to provide intensive treatment hard alloy cutter under a kind of implementation electromagnetic coupling outer field action
The device of method.
For the first purpose of this invention, intensive treatment hard alloy under electromagnetic coupling outer field action provided by the invention
Hard alloy cutter to be processed is placed in the magnet exciting coil working chamber of Electromagnetic Treatment device, carbide cutter tool by the method for cutter
Have two sides and accesses impulse electric field circuit；Then apply impulse electric field and arteries and veins simultaneously to hard alloy cutter using Electromagnetic Treatment device
Magnetic field is rushed, electromagnetic coupling Spot repair hard alloy cutter internal structural flaw is utilized；Impulse electric field voltage is 0.4~2.0V；
Pulsed magnetic field intensity is 0.5~2.5T, and impulse electric field and pulsed magnetic field application time are 3~4min.After treatment power-off takes
The intensive treatment to cutter can be completed in cutter out.
The method of intensive treatment hard alloy cutter under above-mentioned electromagnetic coupling outer field action applies pulsed magnetic to cutter simultaneously
Field and impulse electric field, the pulse current applied, which can excite, generates magnetic field, and formation electricity is coupled with the original pulsed magnetic field of equipment
Magnetic coupling handles outfield, repairs to hard alloy cutter internal structural flaw.
The method of intensive treatment hard alloy cutter under above-mentioned electromagnetic coupling outer field action, electric pulse voltage of electric field are 0.4
~2.0V, electric field single group pulse number are 20~50, and pulse group group number is 20-50, the single electric pulse effect of impulse electric field
Time is 20~50ms, and pulse group interval time is 0.5~1.5s.In preferred implementation, impulse electric field voltage is 1.2
~2.0V, impulse electric field single group pulse number are 20~30, and pulse group group number is 40-50.
The method of intensive treatment hard alloy cutter under above-mentioned electromagnetic coupling outer field action, pulsed magnetic field intensity be 0.5~
2.5T, pulsed magnetic field single magnetic field impulse action time be 0.5~10s, pulsed magnetic field magnetize number be 20~50 times, single magnetic arteries and veins
Rushing interval time is 0.5~1.5s.In preferred implementation, pulsed magnetic field intensity is 1.0~2.0T, and single magnetic field impulse is made
With the time be 0.5~1s, pulsed magnetic field magnetize number be 40~50 times.
It is provided by the invention to implement intensive treatment under above-mentioned electromagnetic coupling outer field action for second object of the present invention
The Electromagnetic Treatment device of hard alloy cutter method, constituting includes impulse electric field circuit and pulsed magnetic field circuit；The pulse
Electric field circuit includes AC power source AC1, programmable logic controller (PLC) PLC1, capacitor C1With two switch (S1、S2), capacitor C1With friendship
Galvanic electricity source AC1With programmable logic controller (PLC) PLC1Series arm parallel connection constitutes the pulse power, capacitor C1It draws and is used for respectively in both ends
The conducting wire being connect with hard alloy cutter two sides to be processed, switch S1It is set to AC power source AC1With capacitor C1The conducting wire of connection
On, switch S2It is set on the conducting wire for connecting hard alloy cutter to be processed；The pulsed magnetic field circuit includes AC power source AC2、
Programmable logic controller (PLC) PLC2, capacitor C2, magnet exciting coil and two switch (S3、S4), capacitor C2With AC power source AC2With can compile
Journey logic controller PLC2Series arm parallel connection constitutes field power supply, capacitor C2Both ends are connect with magnet exciting coil the two poles of the earth, magnet exciting coil
Inside is its working chamber, switch S3It is set to magnet exciting coil and capacitor C2On the conducting wire of connection, switch S4It is set to capacitor C2With friendship
Galvanic electricity source AC2On the conducting wire of connection.The electric pulse that above-mentioned impulse electric field circuit generates is by AC power source AC1The power frequency of output is handed over
Galvanic electricity presses to the capacitor C of high-voltage capacitor group composition1The rectangular pulse discharged after charging, single electric pulse action time refer to electricity
Hold C1It discharges the burst length generated.The pulsed magnetic field that above-mentioned pulsed magnetic field circuit generates is by AC power source AC2The work of output
The capacitor C that frequency alternating voltage is constituted to high-voltage capacitor group2It is up to 4 × 10 to magnet exciting coil release after charging4The magnetization electricity of A
Miscarriage life, single magnetic field impulse action time refer to capacitor C2It discharges the burst length generated.
The present invention is inventor based on the recognition that completing: outer in the electromagnetic coupling processing provided by Electromagnetic Treatment device
In, since hard alloy cutter is ferromagnetic object, skin effect can be generated under strong magnetic field circumstance；Also, in high intensity
Under the function of current, ferromagnetic element Co is reduced, is occurred under alternate microcell joule heating effect due to Electroplastic, flow stress
Plastic deformation can generate filling effect to WC skeleton gap, promote cutter hardness and toughness.Electromagnetic coupling effect under, Co with
Pulsed magnetic field magnetostriction and electro plastic effect occurs so that Co crystal grain rotates, Grain Boundary Sliding promotes Binder Phase
Flowing.The movement and increment of the plasticity and dislocation of material are closely related simultaneously.Dislocation is during the motion by lattice to dislocation
Resistance, it be influence dislocation motion an important factor for, this resistance is decided by the characteristic of lattice and the atomic properties of dislocation core.
The effect of non-directional Lorentz force caused by electromagnetic coupling enables material internal atomic motion to increase, and dislocation activation energy reduces, and adds
Fast dislocation motion, while making to intertwine with each other opening between dislocation, overcomes the obstruction of slip system, to be formed in WC phase uniformly point
The dislocation web frame of cloth can enhance the plastic deformation ability of hard phase while realizing dislocation strengthening.
The method of intensive treatment hard alloy cutter has beneficial below under electromagnetic coupling outer field action provided by the invention
Effect:
(1) hard alloy cutter is placed in Electromagnetic Treatment device by the present invention, by applying impulse electric field simultaneously to cutter
And pulsed magnetic field, it is acted on using electromagnetic coupling, hard alloy interior tissue is repaired by the intensive treatment to hard alloy cutter
Defect extends cutting-tool's used life while promoting the cutting ability of cutter, and then reduces cutter production cost.
It is (2) of the invention by the way that the occupied state for improving cutter material Binder Phase can be promoted to the processing of cutter pulse electromagnetic,
High intensity pulses electric current facilitate micro-crack crack arrest healing, when these can all enhance hard alloy resistance to deformation crack initiation and
The ability of crack propagation, and then improve the bending strength of sample.
(3) present invention by the cutter life after electromagnetic coupling external field treatment be without intensive treatment cutter 1.3
~2.05 times.
(4) present invention is 20~50ms to hard alloy cutter single electric pulse action time, compared to prior heat treatment,
It is extremely short to the action time of metal material, and apparent fuel factor will not be integrally generated to metal material, therefore will not occur obvious
Overheat, to avoid the influence of influence and thermal deformation to tool geometry angle to cutter material performance.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, be described below in attached drawing be only this
Some embodiments of invention for those of ordinary skills without creative efforts, can be with
Illustrated embodiment obtains other embodiments and its attached drawing according to these attached drawings.
Fig. 1 is Electromagnetic Treatment schematic device of the present invention.
Fig. 2 is Tool in Cutting power average value after 1-6 of embodiment of the present invention processing with the change curve of feed number.
Fig. 3 is Tool in Cutting power peak value after 1-6 of embodiment of the present invention processing with the change curve of turning distance.
Fig. 4 is the micro-organization chart of cutter after 1-6 of embodiment of the present invention processing.
Specific embodiment
Clear, complete description is carried out below with reference to technical solution of the attached drawing to various embodiments of the present invention, it is clear that is retouched
Stating embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, originally
Field those of ordinary skill obtained all other embodiment without making creative work, belongs to this hair
Bright protected range.
For exciting extraneous physical field to generate the Electromagnetic Treatment of impulse electric field and pulsed magnetic field used in following embodiment
Device, as shown in Figure 1 comprising impulse electric field circuit and pulsed magnetic field circuit；The impulse electric field circuit includes AC power source
AC1, programmable logic controller (PLC) PLC1, capacitor C1With two switch (S1、S2), capacitor C1With AC power source AC1It is patrolled with programmable
Collect controller PLC1Series arm parallel connection constitutes the pulse power, capacitor C1Both ends draw respectively for carbide cutter tool to be processed
Have the conducting wire of two sides connection, is provided with metal copper electrode, switch S on conducting wire1It is set to AC power source AC1With capacitor C1Connection
On conducting wire, switch S2It is set on the conducting wire for connecting hard alloy cutter to be processed；The pulsed magnetic field circuit includes alternating current
Source AC2, programmable logic controller (PLC) PLC2, capacitor C2, multiturn magnet exciting coil and two switch (S3、S4), capacitor C2With alternating current
Source AC2With programmable logic controller (PLC) PLC2Series arm parallel connection constitutes field power supply, capacitor C2Both ends and magnet exciting coil the two poles of the earth connect
It connects, is its working chamber, switch S inside magnet exciting coil3It is set to magnet exciting coil and capacitor C2On the conducting wire of connection, switch S4Setting
In capacitor C2With AC power source AC2On the conducting wire of connection.Switch S1With AC power source AC1The conducting wire and switch S of connection4With alternating current
Source AC2The wired earth of connection.
Programmable logic controller (PLC) PLC1According to the impulse electric field state modulator switch S of setting1、S2Open or close, thus
It realizes to hard alloy cutter and applies impulse electric field；Programmable logic controller (PLC) PLC2According to the pulsed magnetic field state modulator of setting
Switch S3、S4Open or close applies pulsed magnetic field to realize to hard alloy cutter.
To hard alloy cutter service life in following embodiment is defined as: hard alloy cutter is from beginning to use to reaching
The cutting time that should ensure that when blunt standard is known as cutter life.
Embodiment 1
Hard alloy cutter to be processed is the carbide-tipped lathe tool blade of trade mark YT15, and blade is placed in Electromagnetic Treatment device
In, and it is held on blade between two metal copper electrodes of impulse electric field circuit, then be placed in multiturn magnet exciting coil working chamber
It is interior.
Impulse electric field and pulsed magnetic field parameter are set:
(1) AC power source AC1To capacitor C1Charge frequency be 50Hz, AC power source AC2To capacitor C2Charge frequency be
50Hz；
(2) impulse electric field: impulse electric field voltage is 0.4V, current density 1.21A/mm2, single electric pulse action time
For 50ms, single group pulse number is 20, every to have applied a pulse group post gap 0.5s, totally 20 pulse groups；
(3) pulsed magnetic field: pulsed magnetic field intensity 0.5T, single magnetic field impulse action time is 10s, every to have applied a magnetic
0.5s is spaced after impulse action, the number that magnetizes is 20 times.
The power supply for opening simultaneously impulse electric field circuit and pulsed magnetic field circuit applies pulsed magnetic field and pulse electricity to blade
, total coprocessing 236s, blade, the intensive treatment of complete paired blades are taken out in power-off later.
Blade and untreated blade after impulse electric field and pulsed magnetic field are strengthened simultaneously using same process system and
Turning same batch 45# quenched and tempered steel bar material under the conditions of cutting parameter.Impulse electric field and pulsed magnetic field strengthen simultaneously after blade,
Untreated blade service life is respectively 59.21 minutes, 48.1 minutes.Blade after impulse electric field and pulsed magnetic field reinforcing simultaneously
The more untreated blade of service life improves 23.10%.
Embodiment 2
Hard alloy cutter to be processed is the carbide-tipped lathe tool blade of trade mark YT15, and blade is placed in Electromagnetic Treatment device
In, and it is held on blade between two metal copper electrodes of impulse electric field circuit, then be placed in multiturn magnet exciting coil working chamber
It is interior.
Impulse electric field and pulsed magnetic field parameter are set:
(1) AC power source AC1To capacitor C1Charge frequency be 50Hz, AC power source AC2To capacitor C2Charge frequency be
50Hz；
(2) impulse electric field: impulse electric field voltage is 1.2V, current density 2.84A/mm2, single electric pulse action time
For 50ms, single group pulse number is 20, every to have applied a pulse group post gap 0.5s, totally 20 pulse groups；
(3) pulsed magnetic field: pulsed magnetic field intensity 2.0T, single magnetic field impulse action time is 5s, every to have applied a magnetic
0.5s is spaced after impulse action, the number that magnetizes is 30 times.
The power supply for opening simultaneously impulse electric field circuit and pulsed magnetic field circuit applies pulsed magnetic field and pulse electricity to blade
, total coprocessing 201s, blade, the intensive treatment of complete paired blades are taken out in power-off later.
Blade and untreated blade after impulse electric field and pulsed magnetic field are strengthened simultaneously using same process system and
Turning same batch 45# quenched and tempered steel bar material under the conditions of cutting parameter.Blade after impulse electric field and pulsed magnetic field reinforcing simultaneously
It is respectively 67.42 minutes, 48.1 minutes with untreated blade service life.Knife after impulse electric field and pulsed magnetic field reinforcing simultaneously
The more untreated blade of piece service life improves 40.17%.
Embodiment 3
Hard alloy cutter to be processed is the carbide-tipped lathe tool blade of trade mark YT15, and blade is placed in Electromagnetic Treatment device
In, and it is held on blade between two metal copper electrodes of impulse electric field circuit, then be placed in multiturn magnet exciting coil working chamber
It is interior.
Impulse electric field and pulsed magnetic field parameter are set:
(1) AC power source AC1To capacitor C1Charge frequency be 50Hz, AC power source AC2To capacitor C2Charge frequency be
50Hz；
(2) impulse electric field: impulse electric field voltage is 0.8V, current density 1.98A/mm2, single electric pulse action time
For 20ms, single group pulse number is 50, every to have applied a pulse group post gap 0.75s, totally 30 pulse groups；
(3) pulsed magnetic field: pulsed magnetic field intensity 2.5T, single magnetic field impulse action time are 2s, it is every to have applied a magnetic
0.75s is spaced after impulse action, the number that magnetizes is 40 times.
The power supply for opening simultaneously impulse electric field circuit and pulsed magnetic field circuit applies pulsed magnetic field and pulse electricity to blade
, total coprocessing 172s, blade, the intensive treatment of complete paired blades are taken out in power-off later.
Blade and untreated blade after impulse electric field and pulsed magnetic field are strengthened simultaneously using same process system and
Turning same batch 45# quenched and tempered steel bar material under the conditions of cutting parameter.Blade after impulse electric field and pulsed magnetic field reinforcing simultaneously
It is respectively 68.85 minutes, 48.1 minutes with untreated blade service life.Knife after impulse electric field and pulsed magnetic field reinforcing simultaneously
The more untreated blade of piece service life improves 43.14%.
Embodiment 4
Hard alloy cutter to be processed is the carbide-tipped lathe tool blade of trade mark YT15, and blade is placed in Electromagnetic Treatment device
In, and it is held on blade between two metal copper electrodes of impulse electric field circuit, then be placed in multiturn magnet exciting coil working chamber
It is interior.
Impulse electric field and pulsed magnetic field parameter are set:
(1) AC power source AC1To capacitor C1Charge frequency be 50Hz, AC power source AC2To capacitor C2Charge frequency be
50Hz；
(2) impulse electric field: impulse electric field voltage is 1.2V, current density 2.84A/mm2, single electric pulse action time
For 20ms, single group pulse number is 30, every to have applied a pulse group post gap 1s, totally 40 pulse groups；
(3) pulsed magnetic field: pulsed magnetic field intensity 2.5T, single magnetic field impulse action time is 1s, every to have applied a magnetic
1s is spaced after impulse action, the number that magnetizes is 40 times.
The power supply for opening simultaneously impulse electric field circuit and pulsed magnetic field circuit applies pulsed magnetic field and pulse electricity to blade
, total coprocessing 188s, blade, the intensive treatment of complete paired blades are taken out in power-off later.
Blade and untreated blade after impulse electric field and pulsed magnetic field are strengthened simultaneously using same process system and
Turning same batch 45# quenched and tempered steel bar material under the conditions of cutting parameter.Blade after impulse electric field and pulsed magnetic field reinforcing simultaneously
It is respectively 83.7 minutes, 48.1 minutes with untreated blade service life.Knife after impulse electric field and pulsed magnetic field reinforcing simultaneously
The more untreated blade of piece service life improves 74.18%.
Embodiment 5
Hard alloy cutter to be processed is the carbide-tipped lathe tool blade of trade mark YT15, and blade is placed in Electromagnetic Treatment device
In, and it is held on blade between two metal copper electrodes of impulse electric field circuit, then be placed in multiturn magnet exciting coil working chamber
It is interior.
Impulse electric field and pulsed magnetic field parameter are set:
(1) AC power source AC1To capacitor C1Charge frequency be 50Hz, AC power source AC2To capacitor C2Charge frequency be
50Hz；
(2) impulse electric field: impulse electric field voltage is 2.0V, current density 3.92A/mm2, single electric pulse action time
For 30ms, single group pulse number is 20, every to have applied a pulse group post gap 1.25s, totally 50 pulse groups；
(3) pulsed magnetic field: pulsed magnetic field intensity 1.5T, single magnetic field impulse action time is 0.67s, every to have applied one
It is spaced 1.25s after magnetic field impulse effect, the number that magnetizes is 50 times.
The power supply for opening simultaneously impulse electric field circuit and pulsed magnetic field circuit applies pulsed magnetic field and pulse electricity to blade
, total coprocessing 167s, blade, the intensive treatment of complete paired blades are taken out in power-off later.
Blade and untreated blade after impulse electric field and pulsed magnetic field are strengthened simultaneously using same process system and
Turning same batch 45# quenched and tempered steel bar material under the conditions of cutting parameter.Blade after impulse electric field and pulsed magnetic field reinforcing simultaneously
It is respectively 85.9 minutes, 48.1 minutes with untreated blade service life.Knife after impulse electric field and pulsed magnetic field reinforcing simultaneously
The more untreated blade of piece service life improves 78.59%.
Embodiment 6
Hard alloy cutter to be processed is the carbide-tipped lathe tool blade of trade mark YT15, and blade is placed in Electromagnetic Treatment device
In, and it is held on blade between two metal copper electrodes of impulse electric field circuit, then be placed in multiturn magnet exciting coil working chamber
It is interior.
Impulse electric field and pulsed magnetic field parameter are set:
(1) AC power source AC1To capacitor C1Charge frequency be 50Hz, AC power source AC2To capacitor C2Charge frequency be
50Hz；
(2) impulse electric field: impulse electric field voltage is 1.2V, current density 2.84A/mm2, single electric pulse action time
For 20ms, single group pulse number is 20, every to have applied a pulse group post gap 1.5s, totally 50 pulse groups；
(3) pulsed magnetic field: pulsed magnetic field intensity 1.5T, single magnetic field impulse action time is 0.5s, every to have applied one
It is spaced 1.5s after magnetic field impulse effect, the number that magnetizes is 50 times.
The power supply for opening simultaneously impulse electric field circuit and pulsed magnetic field circuit applies pulsed magnetic field and pulse electricity to blade
, total coprocessing 161s, blade, the intensive treatment of complete paired blades are taken out in power-off later.
Blade, untreated blade after impulse electric field and pulsed magnetic field are strengthened simultaneously are handled only with impulse electric field
Blade (impulse electric field parameter is identical as in the present embodiment) and blade (pulsed magnetic field parameter only with pulse magnetic field treatment
It is identical as in the present embodiment) the quenched rod iron of turning same batch 45# under the conditions of using same process system and cutting parameter
Material.Impulse electric field and pulsed magnetic field strengthen simultaneously after blade, untreated blade, the blade handled only with impulse electric field,
It and only with the blade service life of pulse magnetic field treatment is respectively 92.39 minutes, 48.1 minutes, 61.8 minutes, 79.2 minutes.
Impulse electric field and pulsed magnetic field strengthen simultaneously after the more untreated blade of blade service life, the knife that is handled only with impulse electric field
Piece and 92.07%, 49.50%, 16.65% has been respectively increased only with the blade of pulse magnetic field treatment.
Embodiment 7
Hard alloy cutter to be processed is the carbide-tipped lathe tool blade of trade mark YW2, and blade is placed in Electromagnetic Treatment device
In, and it is held on blade between two metal copper electrodes of impulse electric field circuit, then be placed in multiturn magnet exciting coil working chamber
It is interior.
Impulse electric field and pulsed magnetic field parameter are set:
(1) AC power source AC1To capacitor C1Charge frequency be 50Hz, AC power source AC2To capacitor C2Charge frequency be
50Hz；
(1) impulse electric field: impulse electric field voltage is 1.2V, current density 2.58A/mm2, single electric pulse action time
For 20ms, single group pulse number is 20, every to have applied a pulse group post gap 1.0s, totally 50 pulse groups；
(2) pulsed magnetic field: pulsed magnetic field intensity 2.5T, single magnetic field impulse action time is 1.0s, every to have applied one
It is spaced 1s after magnetic field impulse effect, the number that magnetizes is 50 times.
The power supply for opening simultaneously impulse electric field circuit and pulsed magnetic field circuit applies pulsed magnetic field and pulse electricity to blade
, total coprocessing 173s, blade, the intensive treatment of complete paired blades are taken out in power-off later.
Blade and untreated blade after impulse electric field and pulsed magnetic field are strengthened simultaneously using same process system and
304 stainless steel bar material of turning same batch under the conditions of cutting parameter.Blade after impulse electric field and pulsed magnetic field reinforcing simultaneously
It is respectively 103.8 minutes, 62.8 minutes with untreated blade service life.Knife after impulse electric field and pulsed magnetic field reinforcing simultaneously
The more untreated blade of piece service life improves 61.09%.
Embodiment 8
Hard alloy cutter to be processed is the carbide-tipped lathe tool blade of trade mark YW2, and blade is placed in Electromagnetic Treatment device
In, and it is held on blade between two metal copper electrodes of impulse electric field circuit, then be placed in multiturn magnet exciting coil working chamber
It is interior.
Impulse electric field and pulsed magnetic field parameter are set:
(1) AC power source AC1To capacitor C1Charge frequency be 50Hz, AC power source AC2To capacitor C2Charge frequency be
50Hz；
(2) impulse electric field: impulse electric field voltage is 2.0V, current density 3.13A/mm2, single electric pulse action time
For 20ms, single group pulse number is 20, every to have applied a pulse group post gap 1.0s, totally 50 pulse groups；
(3) pulsed magnetic field: pulsed magnetic field intensity 1.5T, single magnetic field impulse action time is 1.0s, every to have applied one
It is spaced 1.0s after magnetic field impulse effect, the number that magnetizes is 50 times.
The power supply for opening simultaneously impulse electric field circuit and pulsed magnetic field circuit applies pulsed magnetic field and pulse electricity to blade
, total coprocessing 173s, blade, the intensive treatment of complete paired blades are taken out in power-off later.
Blade and untreated blade after impulse electric field and pulsed magnetic field are strengthened simultaneously using same process system and
304 stainless steel bar material of turning same batch under the conditions of cutting parameter.Blade after impulse electric field and pulsed magnetic field reinforcing simultaneously
It is respectively 119.7 minutes, 62.8 minutes with untreated blade service life.Knife after impulse electric field and pulsed magnetic field reinforcing simultaneously
The more untreated blade of piece service life improves 90.61%.
Embodiment 9
Hard alloy cutter to be processed is the carbide-tipped lathe tool blade of trade mark YW2, and blade is placed in Electromagnetic Treatment device
In, and it is held on blade between two metal copper electrodes of impulse electric field circuit, then be placed in multiturn magnet exciting coil working chamber
It is interior.
Impulse electric field and pulsed magnetic field parameter are set:
(1) AC power source AC1To capacitor C1Charge frequency be 50Hz, AC power source AC2To capacitor C2Charge frequency be
50Hz；
(2) impulse electric field: impulse electric field voltage is 1.2V, current density 2.58A/mm2, single electric pulse action time
For 20ms, single group pulse number is 20, every to have applied a pulse group post gap 1.0s, totally 50 pulse groups；
(3) pulsed magnetic field: pulsed magnetic field intensity 1.5T, single magnetic field impulse action time is 1.0s, every to have applied one
It is spaced 1.0s after magnetic field impulse effect, the number that magnetizes is 50 times.
The power supply for opening simultaneously impulse electric field circuit and pulsed magnetic field circuit applies pulsed magnetic field and pulse electricity to blade
, total coprocessing 173s, blade, the intensive treatment of complete paired blades are taken out in power-off later.
Blade and untreated blade after impulse electric field and pulsed magnetic field are strengthened simultaneously using same process system and
304 stainless steel bar material of turning same batch under the conditions of cutting parameter.Blade after impulse electric field and pulsed magnetic field reinforcing simultaneously
It is respectively 128.8 minutes, 62.8 minutes with untreated blade service life.Knife after impulse electric field and pulsed magnetic field reinforcing simultaneously
The more untreated blade of piece service life improves 105.10%.
Embodiment 10
Hard alloy cutter to be processed is the hard alloy finger-like slotting cutter of trade mark YG8, and blade is placed in Electromagnetic Treatment dress
It in setting, and is held on blade between two metal copper electrodes of impulse electric field circuit, then is placed in the work of multiturn magnet exciting coil
It is intracavitary.
Impulse electric field and pulsed magnetic field parameter are set:
(1) AC power source AC1To capacitor C1Charge frequency be 50Hz, AC power source AC2To capacitor C2Charge frequency be
50Hz；
(2) impulse electric field: impulse electric field voltage is 1.2V, current density 2.51A/mm2, single electric pulse action time
For 20ms, single group pulse number is 20, every to have applied a pulse group post gap 1.0s, totally 50 pulse groups；
(3) pulsed magnetic field: pulsed magnetic field intensity 1.0T, single magnetic field impulse action time is 1.0s, every to have applied one
It is spaced 1.0s after magnetic field impulse effect, the number that magnetizes is 50 times.
The power supply for opening simultaneously impulse electric field circuit and pulsed magnetic field circuit applies pulsed magnetic field and pulse electricity to blade
, total coprocessing 173s, blade, the intensive treatment of complete paired blades are taken out in power-off later.
Blade and untreated blade after impulse electric field and pulsed magnetic field are strengthened simultaneously using same process system and
Milling SA508 low carbon stainless steel material under the conditions of cutting parameter.Impulse electric field and pulsed magnetic field strengthen simultaneously after blade and not
Handling blade service life is respectively 352.8 minutes, 228.3 minutes.Blade after impulse electric field and pulsed magnetic field reinforcing simultaneously
The more untreated blade of service life improves 54.53%.
Embodiment 11
Hard alloy cutter to be processed is the hard alloy finger-like slotting cutter of trade mark YG8, and blade is placed in Electromagnetic Treatment dress
It in setting, and is held on blade between two metal copper electrodes of impulse electric field circuit, then is placed in the work of multiturn magnet exciting coil
It is intracavitary.
Impulse electric field and pulsed magnetic field parameter are set:
(1) AC power source AC1To capacitor C1Charge frequency be 50Hz, AC power source AC2To capacitor C2Charge frequency be
50Hz；
(2) impulse electric field: impulse electric field voltage is 1.2V, current density 2.51A/mm2, single electric pulse action time
For 20ms, single group pulse number is 20, every to have applied a pulse group post gap 1.0s, totally 50 pulse groups；
(3) pulsed magnetic field: pulsed magnetic field intensity 1.5T, single magnetic field impulse action time is 1.0ms, every to have applied one
It is spaced 1.0s after pulse magnetic action, the number that magnetizes is 50 times.
The power supply for opening simultaneously impulse electric field circuit and pulsed magnetic field circuit applies pulsed magnetic field and pulse electricity to blade
, total coprocessing 173s, blade, the intensive treatment of complete paired blades are taken out in power-off later.
Blade and untreated blade after impulse electric field and pulsed magnetic field are strengthened simultaneously using same process system and
Milling SA508 low carbon stainless steel material under the conditions of cutting parameter.Impulse electric field and pulsed magnetic field strengthen simultaneously after blade and not
Handling blade service life is respectively 388.7 minutes, 228.3 minutes.Blade after impulse electric field and pulsed magnetic field reinforcing simultaneously
The more untreated blade of service life improves 70.26%.
It can be seen that from the testing experiment interpretation of result to above-described embodiment 1- embodiment 11 using provided by the invention strong
The service life of hard alloy cutter can effectively be extended by changing processing method, be non-intensive treatment cutter life 1.3~
2.05 again.
Embodiment 1-6 treated Tool in Cutting power average value is counted with the variation of feed number, statistical result
As shown in Fig. 2, it can be seen from the figure that the fluctuation range very little of cutting force average value, this is because when single electric pulse effect
Between be 20~50ms, it is extremely short to the action time of metal material compared to prior heat treatment, metal material will not integrally be produced
Raw apparent fuel factor, therefore will not occur obviously to overheat, to avoid influence to cutter material performance and thermal deformation to cutter
The influence of geometric angle.
It unites to embodiment 1-6 treated Tool in Cutting power peak value (cutting force maximum value) with the variation of turning distance
Meter, statistical result is not as shown in figure 3, it can be seen from the figure that cutting force peak value is substantially reduced, the hard conjunction that illustrate that treated
The stability and reliability of golden Tool in Cutting performance increase.
Analysis on Microstructure is carried out to embodiment 1-6 treated cutter using backscattered electron microscope, as a result such as Fig. 4
It is shown, it can be seen from the figure that there is not apparent crackle.This explanation is by that can promote to the processing of cutter pulse electromagnetic
Improve the occupied state of cutter material Binder Phase, high intensity pulses electric current facilitates the crack arrest healing of micro-crack, these can all increase
The ability of crack initiation and crack propagation when strong hard alloy resistance to deformation, and then improve the bending strength of sample.
Those of ordinary skill in the art will understand that embodiment here be to help reader understand it is of the invention
Principle, it should be understood that protection scope of the present invention is not limited to such specific embodiments and embodiments.This field it is common
Technical staff disclosed the technical disclosures can make the various various other tools for not departing from essence of the invention according to the present invention
Body variations and combinations, these variations and combinations are still within the scope of the present invention.
Claims (10)
1. a kind of method of intensive treatment hard alloy cutter under electromagnetic coupling outer field action, it is characterised in that by hard to be processed
Alloy cutter is placed in the magnet exciting coil working chamber of Electromagnetic Treatment device, and impulse electric field circuit is accessed in hard alloy cutter two sides；
Then apply impulse electric field and pulsed magnetic field simultaneously to hard alloy cutter using Electromagnetic Treatment device, utilize electromagnetic coupling outfield
Repair hard alloy cutter internal structural flaw；Impulse electric field voltage is 0.4~2.0V, and pulsed magnetic field intensity is 0.5~2.5T,
Impulse electric field and pulsed magnetic field application time are 3~4min.
2. according to claim 1 under electromagnetic coupling outer field action intensive treatment hard alloy cutter method, feature exists
In impulse electric field voltage be 1.2~2.0V.
3. according to the method for intensive treatment hard alloy cutter under electromagnetic coupling outer field action described in embodiment 2, it is characterised in that
Impulse electric field single group pulse number is 20~50, and pulse group group number is 20~50.
4. according to the method for intensive treatment hard alloy cutter under electromagnetic coupling outer field action described in embodiment 3, it is characterised in that
Impulse electric field single group pulse number is 20~30, and pulse group group number is 40~50.
5. according to the method for intensive treatment hard alloy cutter under the electromagnetic coupling outer field action of claim 3 or 4, feature
It is that impulse electric field single electric pulse action time is 20~50ms, pulse group interval time is 0.5~1.5s.
6. according to claim 1 to the method for intensive treatment hard alloy cutter under any one of 4 electromagnetic coupling outer field actions,
It is characterized in that the pulsed magnetic field intensity is 1.0~2.0T.
7. according to claim 5 under electromagnetic coupling outer field action intensive treatment hard alloy cutter method, feature exists
In the pulsed magnetic field intensity be 1.0~2.0T.
8. according to claim 7 under electromagnetic coupling outer field action intensive treatment hard alloy cutter method, feature exists
In the pulsed magnetic field magnetize number be 20~50 times, single magnetic field impulse action time be 0.5~10s, single magnetic field impulse interval
Time is 0.5~1.5s.
9. according to claim 8 under electromagnetic coupling outer field action intensive treatment hard alloy cutter method, feature exists
In the pulsed magnetic field magnetize number be 40~50 times.
10. implementing the Electromagnetic Treatment device of any one of claim 1 to 9 claim the method, it is characterised in that including arteries and veins
Rush electric field circuit and pulsed magnetic field circuit；The impulse electric field circuit includes AC power source AC1, programmable logic controller (PLC) PLC1、
Capacitor C1With two switch (S1、S2), capacitor C1With AC power source AC1With programmable logic controller (PLC) PLC1Series arm parallel connection structure
At the pulse power, capacitor C1The conducting wire for connecting with hard alloy cutter two sides to be processed, switch S are drawn respectively in both ends1Setting
In AC power source AC1With capacitor C1On the conducting wire of connection, switch S2It is set on the conducting wire for connecting hard alloy cutter to be processed；
The pulsed magnetic field circuit includes AC power source AC2, programmable logic controller (PLC) PLC2, capacitor C2, magnet exciting coil and two switch
(S3、S4), capacitor C2With AC power source AC2With programmable logic controller (PLC) PLC2Series arm parallel connection constitutes field power supply, capacitor
C2Both ends are connect with magnet exciting coil the two poles of the earth, are its working chamber, switch S inside magnet exciting coil3It is set to magnet exciting coil and capacitor C2Even
On the conducting wire connect, switch S4It is set to capacitor C2With AC power source AC2On the conducting wire of connection.
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| CN113627026A (en) * | 2021-08-16 | 2021-11-09 | 四川大学 | Nondestructive quality evaluation method for hard alloy cutter subjected to electromagnetic coupling external field strengthening treatment |
| CN113699472A (en) * | 2021-09-16 | 2021-11-26 | 四川大学 | Method for regulating residual stress of bearing frame of aluminum alloy engine through electromagnetic coupling |
| CN113774301A (en) * | 2021-09-16 | 2021-12-10 | 四川大学 | Method for prolonging fatigue life of welding seam of titanium alloy electron beam welding part through electromagnetic coupling treatment |
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