CN106521123B - A kind of material surface modifying device and method of modifying - Google Patents
A kind of material surface modifying device and method of modifying Download PDFInfo
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- CN106521123B CN106521123B CN201611128460.8A CN201611128460A CN106521123B CN 106521123 B CN106521123 B CN 106521123B CN 201611128460 A CN201611128460 A CN 201611128460A CN 106521123 B CN106521123 B CN 106521123B
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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
- C21D7/00—Modifying the physical properties of iron or steel by deformation
- C21D7/02—Modifying the physical properties of iron or steel by deformation by cold working
- C21D7/04—Modifying the physical properties of iron or steel by deformation by cold working of the surface
- C21D7/06—Modifying the physical properties of iron or steel by deformation by cold working of the surface by shot-peening or the like
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C24/00—Coating starting from inorganic powder
- C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
- C23C24/082—Coating starting from inorganic powder by application of heat or pressure and heat without intermediate formation of a liquid in the layer
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F17/00—Multi-step processes for surface treatment of metallic material involving at least one process provided for in class C23 and at least one process covered by subclass C21D or C22F or class C25
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mounting, Exchange, And Manufacturing Of Dies (AREA)
- Forging (AREA)
Abstract
The invention discloses a kind of material surface modifying device and method of modifying, including workbench, the second rack and surface processing device, the surface processing device includes squeezing formed punch, heater, filler release device and cooling device；The heater is for heating workpiece surface；The filler release device is used to be heated the ion that region release is used for material modification to workpiece surface；The extruding formed punch, which is used to be heated workpiece surface in region, carries out punching press；The cooling device is heated region for cooling down workpiece.Shown method is to the region to be processed of workpiece surface according to pretreatment, heating, the sequential processes region to be processed for spraying into the ion, punching press, cooling that are used for material modification.The device and method that this case provides are used for metal surface properties modification, the new surface layer formed after processing metal microstructure and the distribution of modifying element concentration in gradient in the depth direction.
Description
Technical field
The present invention relates to technical field of material surface treatment, more particularly to a kind of material surface modifying device and modification side
Method.
Background technique
The failure of engineering structure and equipment, often because the factors such as friction, burn into crackle, fatigue of material surface are drawn
It rises.For example, the steel about 10% that the whole world produces every year fails because of corrosion, therefore about 30% electromechanical equipment damages.
Direct economic loss caused by the metal erosion of the several Main Developed Countries in the world can arrive the 2-4% of its gross national product, number
It measures considerable.For another example the roller massage device in mechanized equipment, is often subject to rubbing action, and surface layer is caused to be removed and ultimate failure.
Often through surface engineering technology in production, specially treated is carried out with betterment works material surface in a certain respect to material surface
Performance.Surface Engineering is material surface after pretreatment, passes through surface coating, surface modification or a variety of compound places of sufacing
Reason changes form, chemical component, institutional framework and the stress state of solid metal surface or nonmetallic surface, to obtain surface
Required performance.Make the part to work under high speed, high temperature, high pressure, heavy duty, corrosive medium environment originally, improves reliability, prolongs
Service life has been grown, there is very big economic value and realistic meaning.
The surface engineering technology for being currently used for material surface processing mainly includes Coating technology, such as chemical plating；Table
Face modification technology, such as shot peening strengthening；Thin film technique, such as gas phase deposition technology.It is further ground for surface engineering technology
Study carefully, promoted or optimize the processing capacity to material surface to further increase the performance of material surface, is surface in the prior art
The important research direction of engineering technology.
Summary of the invention
For, promotion or optimization processing to material surface for further study for surface engineering technology described above
Ability to further increase the performance of material surface, be in the prior art the important research direction of surface engineering technology the problem of,
The present invention provides a kind of material surface modifying device and method of modifying, are used for metal material by the device and method that this case provides
Expect that surface is modified, metal microstructure and modifying element concentration in gradient divide in the depth direction on the new surface layer formed after processing
Cloth.
A kind of material surface modifying device and method of modifying provided by the invention are solved the problems, such as by following technical essential:
A kind of material surface modifying device, it is described including workbench, the second rack and the surface processing device being set in the second rack
Surface processing device is used to carry out the workpiece on workbench surface processing, and the surface processing device includes squeezing formed punch, adding
Hot device, filler release device and cooling device；
The heater is for heating workpiece surface；
The filler release device is used to be heated the ion that region release is used for material modification to workpiece surface；
The extruding formed punch, which is used to be heated workpiece surface in region, carries out punching press；
The cooling device is heated region for cooling down workpiece.
The means of existing common metal material surface nanosizing mainly include tube method, shot blasting ballistic method, ultrasound
Method, Laser Surface Treatment method, mechanical milling method etc. are rolled in fast microprojectile bombardment methods, hammering method, surface.
Existing metal material surface engineering technology mainly has Coating technology, such as chemistry degree；Process for modifying surface,
Such as shot peening strengthening；Thin film technique, such as gas phase deposition technology.Coating technology generally can be in new strengthening layer and material processed
Apparent interface is formed between material.New strengthening layer is being easy to generate peeling in interface after long-time use, finally
Lose reinforcing or protective action.Thin film technique is often generated due to prior art other than there is interface peel
Thin film layer thickness it is smaller, anti-corrosion, the performances such as wear-resisting can significantly reduce with the increase of use time.
For the device that this case provides when carrying out surface of workpiece processing, used technique is as follows: 1, to workpiece surface
Region to be processed pre-processed；2, it is heated using to be processed region of the heater to workpiece surface；3, using filler
Release device sprays into the ion for being used for material modification to the region to be processed of workpiece surface, during ion sprays into or completes
After penetrating, punching press is carried out to the region to be processed of workpiece surface using formed punch is squeezed；4, cold using cooling device after the completion of punching press
But the region to be processed of workpiece surface.
Although the device and method that this case provides is rolled with existing Supersonic particles bombarding method, laser surface intensified, surface
System, mechanical lapping belongs to metal surface properties modification technology, but Supersonic particles bombarding method due to microparticle bombardment path with
Machine, surface treatment effect is uneven, there are undercuring or crosses the dispersion part tiny area handled；Laser surface hardening technology
Due to concentrating in laser focal beam spot energy, material local temperature is made to reach vapourizing temperature sometimes, with neighboring area energy
Significant difference, vertical laser scan path direction and form residual tension sometimes or even introduce micro-crack, are unfavorable for institute after processing
Obtain the anticorrosive and anti-fatigue performance of workpiece；Surface treatment method is cold worked in surface rolling and mechanical lapping etc., generates on surface
Enhance surface hardness while severe plastic deformation layer.But this method can introduce residual tension under plastic deformation layer, hold
Easily cause the germinating of fatigue crack.
In the device that this case provides, material modification is used for by introducing after heating to workpiece surface on the surface of workpiece
Ion, such as changing the ion of workpiece surface intensity, wearability, corrosion resistance, using squeezing formed punch to workpiece surface
Punching press repeatedly, can not only workpiece surface formed the fine grained texture containing modified ion, while it is resulting tissue be different from
The existing resulting violent shear-deformable layer of plasticity of processing technique, will not introduce excessive residual tension；In the present apparatus, due to work
The pre-heat treatment on part surface is to change metallographic structure with cycle extrusion power collective effect, therefore required preheating temperature is not high, is not required to
Reach phase transition temperature, thermal effectiveness can be played in the case where heat is in conjunction with power；Generally speaking for workpiece, cooling device makes
Small range thermal treatment zone is formed on workpiece, temperature, will not be in workpiece in workpiece one lesser range continuous transition variation
Upper formation ablation or micro-crack, meanwhile, cooling procedure avoids secondary recrystallization, and surface layer is made to maintain the new microstructure of refinement
And guarantee certain thickness.Because of heating, power is loaded and modified ion distribution is all the local surfaces in very little, Temperature Distribution, power
Distribution, modifying element are distributed in after squeezing formed punch effect, gradually weaken from workpiece surface to workpiece center portion, formed after processing
New coating metal microstructure and modifying element concentration in gradient distribution, i.e., from the surface layer of material gradually to the center portion mistake of material
Cross, therefore new surface performance is by the inside consecutive variations in surface, can effectively avoid workpiece in use new surface layer by workpiece
Removing, meanwhile, by the modification skin depth of the present apparatus treated workpiece up to 300 μm.As one of the above material surface
The further technical solution of reforming apparatus:
As the above specific implementation for squeezing formed punch, the extruding formed punch includes PZT (piezoelectric transducer), ultrasonic signal hair
Raw device and formed punch, the formed punch are connected on the mechanical oscillation output end of PZT (piezoelectric transducer), the supersonic signal generator it is defeated
Outlet is connected on the electrical energy inputs of PZT (piezoelectric transducer).In this implementation, the punching press of high cycle can be reached in a short time
Load, not only can be improved material surface modifying efficiency, while this implementation also has the characteristics that low energy consumption, meanwhile, also
Convenient for the fine grained texture of high density dislocation is formed using supersonic frequency circulating pressure load on the surface layer of material, meanwhile, this programme
It is also convenient for making workpiece table in the short time in the case where single load power is little by carrying out high frequency load to workpiece surface
Intensified element, the material subsurface of more deep thickness is squeezed by bigger plastic deformation or flexible deformation by face heating.
It is small as a kind of formed punch and material surface contact area, while the position that be stamped is able to maintain preferable finish
Technical solution, be in ball shape at the top of the formed punch.In the present solution, surface roughness Ra numerical value can be used below 3.2 in formed punch
High intensity harden smooth ball.
It further include the first rack, the workbench is fixed on as a kind of technical solution of cylindric workpiece easy to process
In first rack, the rotating device for rotational workpieces is additionally provided in first rack and/or workbench.Rotate above dress
It sets and bearing block can be used, being such as set as the first rack includes two, and workbench is set between two the first racks, at two the
The end that bearing block is respectively provided in one rack for workpiece supports, and for the amount of deflection for reducing workpiece, setting is used for work on the table
Two parallel rollers can be used in the device of part midfoot support, the above device for workpiece midfoot support, and the both ends of roller are equal
It is connect by bearing with workbench.
For convenient for changing Working position, squeezing formed punch, heater, filler release device and cooling device can be with work
Make platform and relative motion occurs.
It further include the bottom for being provided with sliding slot as a kind of specific implementation convenient for changing present apparatus Working position
Seat, the lower end of second rack is installed in the sliding slot, and position of the lower end of the second rack in sliding slot is adjustable.Such as needle
To shaft-like workpiece, the axis direction along workpiece may be configured as with the length direction of upper hopper chute.
Meanwhile the present invention also provides a kind of material surface modifying method, the following steps carried out including sequence:
S1, the region to be processed of workpiece surface is pre-processed；
S2, the region to be processed of workpiece surface is heated；
S3, to the region to be processed of workpiece surface spray into be used for material modification ion, ion spray into during or
It completes after spraying into, punching press is carried out to the region to be processed of workpiece surface；
S4, cooling down workpiece surface region to be processed.
Above-described method of modifying can be used as the application method of device as described above, by above method, can get new
Surface layer is not easy and removes on workpiece, is modified the thicker workpiece of skin depth.
The above extruding formed punch, which is heated region to workpiece surface, which carries out punching press, to realize under the action of vibrator, in this way,
It can facilitate and realize high cycle circulation vibration load；Further, when extruding formed punch acts on corresponding workpiece surface, so that squeezing
Pressure formed punch not only has relative to corresponding workpiece surface along the movement for squeezing formed punch and workpiece surface spacing direction, has simultaneously
There is the movement for changing and squeezing formed punch projected position on the surface of the workpiece to squeeze when that is, extruding formed punch and workpiece surface interact
Formed punch is also sheared not only by pressure, in this way, the fine grained texture containing high density dislocation can be formed on the surface of the workpiece,
Dislocation under high dislocation density is wound with the hardness for being conducive to improve workpiece surface and wearability etc.；Further to promote the fine grain
The dislocation density of tissue, the pressure squeezed on formed punch are variable force.
As a kind of above-described further technical solution of material surface modifying method:
The for the benefit of suface processing quality of workpiece, the pretreatment in step S1 are to carry out to the region to be processed of workpiece surface
Derusting, degreasing processing.
To promote the treatment effeciency of this method, reducing the processing power consumption of this method, being stamped into workpiece table in step S3
Face carries out high frequency punching press, and the high frequency is stamped into using output frequency in the supersonic signal generator of 20kHz or more and surpasses with this
The matched PZT (piezoelectric transducer) of sound sine wave signal carries out punching press repeatedly to the correspondence surface of workpiece.Meanwhile this programme passes through to work
Part surface carries out high frequency load and in the short time workpiece surface is heated up in the case where single load power is little, by bigger
Plastic deformation or flexible deformation intensified element is squeezed into the material subsurface of more deep thickness.
It is small as a kind of formed punch and material surface contact area, while the position that be stamped is able to maintain preferable finish
Technical solution, the surface of formed punch used by the punching press is shiny surface.In the present solution, surface roughness Ra can be used in formed punch
Numerical value is in the 3.2 high-intensitive smooth balls of hardening below.
The invention has the following advantages:
This case provide device and method be used for metal works surface treatment, this case provide device and method in, because
For heating, power is loaded and modified ion distribution is all the local surfaces in very little, Temperature Distribution, power distribution, modifying element distribution
After squeezing formed punch effect, gradually weaken from workpiece surface to workpiece center portion, the new coating metal formed after processing is microcosmic
Structure and the distribution of modifying element concentration in gradient, i.e., from the surface layer of material gradually to the center portion transition of material, therefore it is new superficial
Can by the inside consecutive variations in surface, can effectively avoid workpiece in use new surface layer by being removed on workpiece, meanwhile, pass through this
The modification skin depth of device treated workpiece is up to 300 μm.
The device and method that this case provides are different from the prior art, the extruding due to the change of processing method, for punching press
Formed punch, for surface heated heater, for on machined surface add modified ion filler release device, for being added
For the surface-cooled cooling device of work relative to existing equivalent processing technology, all parts are settable to obtain more small and exquisite, energy consumption more
It is low, it can need to carry out multi-pass processing to material surface according to specific processing.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of one specific embodiment of material surface modifying device provided by the invention.
Appended drawing reference in figure is successively are as follows: the 1, first rack, 2, workbench, 3, pedestal, the 4, second rack, 5, surface processing
Device.
Specific embodiment
Below with reference to embodiment, the present invention is described in further detail, but structure of the invention be not limited only to it is following
Embodiment.
Embodiment 1:
Such as Fig. 1, a kind of material surface modifying device including workbench 2, the second rack 4 and is set in the second rack 4
Surface processing device 5, the surface processing device 5 are used to carry out the workpiece on workbench 2 surface processing, the surface processing
Device 5 includes squeezing formed punch, heater, filler release device and cooling device；
The heater is for heating workpiece surface；
The filler release device is used to be heated the ion that region release is used for material modification to workpiece surface；
The extruding formed punch, which is used to be heated workpiece surface in region, carries out punching press；
The cooling device is heated region for cooling down workpiece.
The means of existing common metal material surface nanosizing mainly include tube method, shot blasting ballistic method, ultrasound
Method, Laser Surface Treatment method, mechanical milling method etc. are rolled in fast microprojectile bombardment methods, hammering method, surface.
Existing metal material surface engineering technology mainly has Coating technology, such as chemistry degree；Process for modifying surface,
Such as shot peening strengthening；Thin film technique, such as gas phase deposition technology.Coating technology generally can be in new strengthening layer and material processed
Apparent interface is formed between material.New strengthening layer is being easy to generate peeling in interface after long-time use, finally
Lose reinforcing or protective action.Thin film technique is often generated due to prior art other than there is interface peel
Thin film layer thickness it is smaller, anti-corrosion, the performances such as wear-resisting can significantly reduce with the increase of use time.
For the device that this case provides when carrying out surface of workpiece processing, used technique is as follows: 1, to workpiece surface
Region to be processed pre-processed；2, it is heated using to be processed region of the heater to workpiece surface；3, using filler
Release device sprays into the ion for being used for material modification to the region to be processed of workpiece surface, during ion sprays into or completes
After penetrating, punching press is carried out to the region to be processed of workpiece surface using formed punch is squeezed；4, cold using cooling device after the completion of punching press
But the region to be processed of workpiece surface.
Although the device and method that this case provides is rolled with existing Supersonic particles bombarding method, laser surface intensified, surface
System, mechanical lapping belongs to metal surface properties modification technology, but Supersonic particles bombarding method due to microparticle bombardment path with
Machine, surface treatment effect is uneven, there are undercuring or crosses the dispersion part tiny area handled；Laser surface hardening technology
Due to concentrating in laser focal beam spot energy, material local temperature is made to reach vapourizing temperature sometimes, with neighboring area energy
Significant difference, vertical laser scan path direction and form residual tension sometimes or even introduce micro-crack, are unfavorable for institute after processing
Obtain the anticorrosive and anti-fatigue performance of workpiece；Surface treatment method is cold worked in surface rolling and mechanical lapping etc., generates on surface
Enhance surface hardness while severe plastic deformation layer.But this method can introduce residual tension under plastic deformation layer, hold
Easily cause the germinating of fatigue crack.
In the device that this case provides, material modification is used for by introducing after heating to workpiece surface on the surface of workpiece
Ion, such as changing the ion of workpiece surface intensity, wearability, corrosion resistance, using squeezing formed punch to workpiece surface
Punching press repeatedly, can not only workpiece surface formed the fine grained texture containing modified ion, while it is resulting tissue be different from
The existing resulting violent shear-deformable layer of plasticity of processing technique, will not introduce excessive residual tension；In the present apparatus, due to work
The pre-heat treatment on part surface is to change metallographic structure with cycle extrusion power collective effect, therefore required preheating temperature is not high, is not required to
Reach phase transition temperature, thermal effectiveness can be played in the case where heat is in conjunction with power；Generally speaking for workpiece, cooling device makes
Small range thermal treatment zone is formed on workpiece, temperature, will not be in workpiece in workpiece one lesser range continuous transition variation
Upper formation ablation or micro-crack, meanwhile, cooling procedure avoids secondary recrystallization, and surface layer is made to maintain the new microstructure of refinement
And guarantee certain thickness.Because of heating, power is loaded and modified ion distribution is all the local surfaces in very little, Temperature Distribution, power
Distribution, modifying element are distributed in after squeezing formed punch effect, gradually weaken from workpiece surface to workpiece center portion, formed after processing
New coating metal microstructure and modifying element concentration in gradient distribution, i.e., from the surface layer of material gradually to the center portion mistake of material
Cross, therefore new surface performance is by the inside consecutive variations in surface, can effectively avoid workpiece in use new surface layer by workpiece
Removing, meanwhile, by the modification skin depth of the present apparatus treated workpiece up to 300 μm.
Meanwhile the present embodiment additionally provides a kind of material surface modifying method, the following steps carried out including sequence:
S1, the region to be processed of workpiece surface is pre-processed；
S2, the region to be processed of workpiece surface is heated；
S3, to the region to be processed of workpiece surface spray into be used for material modification ion, ion spray into during or
It completes after spraying into, punching press is carried out to the region to be processed of workpiece surface；
S4, cooling down workpiece surface region to be processed.
Above-described method of modifying can be used as the application method of device as described above, by above method, can get new
Surface layer is not easy and removes on workpiece, is modified the thicker workpiece of skin depth.
Embodiment 2:
The present embodiment on the basis of embodiment 1 advanced optimizes this case: as shown in Figure 1, squeezing punching as above
The specific implementation of head, the extruding formed punch include PZT (piezoelectric transducer), supersonic signal generator and formed punch, the formed punch connection
On the mechanical oscillation output end of PZT (piezoelectric transducer), the output end of the supersonic signal generator is connected to the electricity of PZT (piezoelectric transducer)
On energy input terminal.In this implementation, the punching press load of high cycle can be reached in a short time, material surface not only can be improved and change
Property efficiency, while this implementation also has the characteristics that low energy consumption, meanwhile, be also convenient for utilizing supersonic frequency on the surface layer of material
Rate circulating pressure load forms the fine grained texture of high density dislocation, meanwhile, this programme is also convenient for high by carrying out to workpiece surface
Frequency loads, and in the case where single load power is little, in the short time workpiece surface is heated up, by bigger plastic deformation or
Intensified element is squeezed into the material subsurface of more deep thickness by flexible deformation.
It is small as a kind of formed punch and material surface contact area, while the position that be stamped is able to maintain preferable finish
Technical solution, be in ball shape at the top of the formed punch.In the present solution, surface roughness Ra numerical value can be used below 3.2 in formed punch
High intensity harden smooth ball.
It further include the first rack 1 as a kind of technical solution of cylindric workpiece easy to process, the workbench 2 is fixed
In in the first rack 1, the rotating device for rotational workpieces is additionally provided in first rack 1 and/or workbench 2.More than
Bearing block can be used in rotating device, be such as set as the first rack 1 include two, workbench 2 be set to two the first racks 1 it
Between, be respectively provided in two the first racks 1 bearing block for workpiece end support, for reduce workpiece amount of deflection, in workbench 2
Upper setting is used for the device of workpiece midfoot support, and two parallel rollers can be used in the above device for workpiece midfoot support,
The both ends of roller pass through bearing and connect with workbench 2.
For convenient for changing Working position, squeezing formed punch, heater, filler release device and cooling device can be with work
Make platform 2 and relative motion occurs.
It further include the bottom for being provided with sliding slot as a kind of specific implementation convenient for changing present apparatus Working position
Seat 3, the lower end of second rack 4 is installed in the sliding slot, and position of the lower end of the second rack 4 in sliding slot is adjustable.
It is such as directed to shaft-like workpiece, the axis direction along workpiece may be configured as with the length direction of upper hopper chute.
Embodiment 3:
The present embodiment on the basis of embodiment 1 advanced optimizes this case: for the benefit of suface processing quality of workpiece,
Pretreatment in step S1 be derusted to the region to be processed of workpiece surface, degreasing processing.
To promote the treatment effeciency of this method, reducing the processing power consumption of this method, being stamped into workpiece table in step S3
Face carries out high frequency punching press, and the high frequency is stamped into using output frequency in the supersonic signal generator of 20kHz or more and surpasses with this
The matched PZT (piezoelectric transducer) of sound sine wave signal carries out punching press repeatedly to the correspondence surface of workpiece.Meanwhile this programme passes through to work
Part surface carries out high frequency load and in the short time workpiece surface is heated up in the case where single load power is little, by bigger
Plastic deformation or flexible deformation intensified element is squeezed into the material subsurface of more deep thickness.
It is small as a kind of formed punch and material surface contact area, while the position that be stamped is able to maintain preferable finish
Technical solution, the surface of formed punch used by the punching press is shiny surface.In the present solution, surface roughness Ra can be used in formed punch
Numerical value is in the 3.2 high-intensitive smooth balls of hardening below.
The above content is combine specific preferred embodiment to the further description of the invention made, and it cannot be said that originally
The specific embodiment of invention is only limited to these instructions.For those of ordinary skill in the art to which the present invention belongs,
The other embodiments obtained in the case where not departing from technical solution of the present invention, should be included within the scope of the present invention.
Claims (6)
1. a kind of material surface modifying device, including workbench (2), the second rack (4) and the table being set on the second rack (4)
Face processing unit (plant) (5), the surface processing device (5) are used to carry out surface processing to the workpiece on workbench (2), and feature exists
In the surface processing device (5) includes squeezing formed punch, heater, filler release device and cooling device；
The heater is for heating workpiece surface；
The filler release device is used to be heated the ion that region release is used for material modification to workpiece surface；
The extruding formed punch is used to be heated workpiece surface region and carries out punching press, and modifying element is distributed in be made by squeezing formed punch
With rear, gradually weaken from workpiece surface to workpiece center portion, the new coating metal microstructure and modifying element formed after processing is dense
Spend distribution gradient；
The cooling device is heated region for cooling down workpiece.
2. a kind of material surface modifying device according to claim 1, which is characterized in that the extruding formed punch includes piezoelectricity
Energy converter, supersonic signal generator and formed punch, the formed punch are connected on the mechanical oscillation output end of PZT (piezoelectric transducer), described super
The output end of sound signal generator is connected on the electrical energy inputs of PZT (piezoelectric transducer).
3. a kind of material surface modifying device according to claim 2, which is characterized in that be in ball at the top of the formed punch
Shape.
4. a kind of material surface modifying device according to claim 1, which is characterized in that further include the first rack (1), institute
It states workbench (2) to be fixed on the first rack (1), be additionally provided on first rack (1) and/or workbench (2) for revolving
It changes a job the rotating device of part.
5. a kind of material surface modifying device according to claim 4, which is characterized in that squeeze formed punch, heater, filler
With workbench (2) relative motion can occur for release device and cooling device.
6. a kind of material surface modifying device according to claim 5, which is characterized in that further include being provided with sliding slot
Pedestal (3), the lower end of second rack (4) is installed in the sliding slot, and the lower end of the second rack (4) is in sliding slot
Position is adjustable.
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| CN201611128460.8A CN106521123B (en) | 2016-12-09 | 2016-12-09 | A kind of material surface modifying device and method of modifying |
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| CN201611128460.8A CN106521123B (en) | 2016-12-09 | 2016-12-09 | A kind of material surface modifying device and method of modifying |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1214159A (en) * | 1967-12-14 | 1970-12-02 | Summers & Sons Ltd John | Method of coating a moving metal strip |
| CN201086052Y (en) * | 2007-07-13 | 2008-07-16 | 熊林勇 | Induction melting coating alloy powder centrifugal precoating device |
| CN101994079A (en) * | 2010-09-27 | 2011-03-30 | 江阴东大新材料研究院 | Spraying-spinning method for preparing high-density coating on the surface of shaft part |
| CN103805929A (en) * | 2013-12-16 | 2014-05-21 | 湖北工业大学 | Surface treatment method and device for workpiece coating |
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| CN102560507A (en) * | 2012-02-28 | 2012-07-11 | 东北大学 | Surface treatment method for nitrided case of steel material |
| CN103521581B (en) * | 2013-10-23 | 2015-12-02 | 武汉理工大学 | Obtain method and the mould of mechanical performance gradient drop stamping part |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1214159A (en) * | 1967-12-14 | 1970-12-02 | Summers & Sons Ltd John | Method of coating a moving metal strip |
| CN201086052Y (en) * | 2007-07-13 | 2008-07-16 | 熊林勇 | Induction melting coating alloy powder centrifugal precoating device |
| CN101994079A (en) * | 2010-09-27 | 2011-03-30 | 江阴东大新材料研究院 | Spraying-spinning method for preparing high-density coating on the surface of shaft part |
| CN103805929A (en) * | 2013-12-16 | 2014-05-21 | 湖北工业大学 | Surface treatment method and device for workpiece coating |
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