CN107012299A - A kind of laser thermodynamic activity collaboration variation rigidity loss of weight light weight method and system - Google Patents

A kind of laser thermodynamic activity collaboration variation rigidity loss of weight light weight method and system Download PDF

Info

Publication number
CN107012299A
CN107012299A CN201710277867.5A CN201710277867A CN107012299A CN 107012299 A CN107012299 A CN 107012299A CN 201710277867 A CN201710277867 A CN 201710277867A CN 107012299 A CN107012299 A CN 107012299A
Authority
CN
China
Prior art keywords
laser
quenching
data
variation rigidity
thermodynamic activity
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710277867.5A
Other languages
Chinese (zh)
Inventor
张永康
于秋云
杨青天
杨智帆
杨丰槐
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong University of Technology
Original Assignee
Guangdong University of Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangdong University of Technology filed Critical Guangdong University of Technology
Priority to CN201710277867.5A priority Critical patent/CN107012299A/en
Publication of CN107012299A publication Critical patent/CN107012299A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/06—Surface hardening
    • C21D1/09—Surface hardening by direct application of electrical or wave energy; by particle radiation
    • 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/18—Hardening; Quenching with or without subsequent tempering
    • 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/62—Quenching devices
    • 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
    • C21D11/00—Process control or regulation for heat treatments

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Articles (AREA)
  • Laser Beam Processing (AREA)

Abstract

The invention discloses a kind of laser thermodynamic activity collaboration variation rigidity loss of weight light weight method and system, wherein method comprises the following steps：Measure the initial data X of part；Lightweight processing is carried out to part；Measure Parameters of The Parts X after lightweight processing0；Analysis determines the machined parameters Y of the laser of first time laser quenching0；N-th laser quenching is carried out to the first surface of part；Detect the parameter Xn of part after laser quenching；By the comparative analysis of data Xn and Xn 1, and according to its relative difference and the machined parameters of error transfer factor laser, and the machined parameters record after adjustment is saved as into data Yn；Judge whether the error between data Xn and data X is less than preset error value, if it is, machining, if it is not, then repeating quenching Step.Method provided by the present invention, can effectively mitigate the weight of design of part part in aviation field, reduce consumptive material, it is to avoid the reduction of the performance such as hardness, strength and stiffness of design of part.

Description

A kind of laser thermodynamic activity collaboration variation rigidity loss of weight light weight method and system
Technical field
The present invention relates to aerospace component manufacture field, more particularly to a kind of laser thermodynamic activity collaboration variation rigidity loss of weight Light weight method and system.
Background technology
With the progress of science and technology, in the field without fatigue life particular/special requirement of such as space flight, launch space equipment It has not been any difficult matter into space, in international space station on the LEO that the earth flies, gravitation is almost and ground On it is equally strong, if international space station is with respect to earth transfixion, then it will again be fallen in the way of freely falling body On ground, it is desirable to stay in orbit, the speed flight with least 8 kilometers per second is just had to, then how to ensure flying speed Into problem.
In the case where space equipment general structure is constant, the speed around orbital flight can be accelerated by mitigating its weight Substantially disposable, zero component without recycling, and the processing of disposable products in degree, space equipment, it is not necessary to which height will The fatigue life asked, but to design of part in high temperature, high humidity environment condition and HI high impact, the severe mechanical ring such as many frequencys vibrations Intensity under border, rigidity and stability have strict requirements.
For the disposable parts structure without recycling, in the case of its function is ensured, can remove portion of material or Design of part is thinned, so as to mitigate integrally-built weight, makes space structure part more light and flexible, higher flight speed is obtained Degree, it is ensured that around orbital flight in its space, while can also save material, reduces the wasting of resources, reduces environmental pollution, improve it Economy.
However, design of part its mechanical property degradation after loss of weight is thinned, for example：Intensity, hardness and rigidity etc. are tight Reduce again, the performance of material can not meet the function of design of part, therefore in high temperature, high humility, in the environment of high-strength impact, Space flight part mechanism can be broken in advance, be melted, the cisco unity malfunction such as deformation, cause whole Spacecraft Launch to fail, loss is miserable Weight.
At present, laser quenching can be used, i.e., quickly scans steel using the big laser beam of the high-energy-density after focusing Material surface, heat energy makes adjacent material rapidly be warming up to more than _ s of Austenite by conduction, the temperature below fusing point, stops Because of the autorefrigeration of material matrix after heating, make heated skin-material with more than martensitic traoformation critical cooling rate rapidly Cooling, so as to complete transformation hardening.Laser quenching is a kind of heat treatment mode of novel environment friendly, compared to prior heat treatment technology With efficiency high, pollution is few, and energy consumption is low, using it is flexible the advantages of.
However, in the prior art, because the roughness on rapidoprint surface is different, in laser processing procedure, material Surface will be different to the absorptivity of laser, and the machined parameters of laser are constant, so the Surface hardened layer after material processing Bandwidth is different, so as to influence the performance of workpiece surface.
Therefore, how the lightweight of part is effectively realized, is that those skilled in the art need at present while ensureing its performance The technical problem of solution.
The content of the invention
It is an object of the invention to provide a kind of laser thermodynamic activity collaboration variation rigidity loss of weight light weight method and system, it is used for The lightweight of part is realized, while meeting its performance.
To achieve the above object, the present invention provides following technical scheme：
A kind of laser thermodynamic activity cooperates with variation rigidity loss of weight light weight method, comprises the following steps：
Step S1：Initiated failure life-span, case hardness, intensity and the parameters of structural dimension of measurement part are used as described zero The initial data of part, and record saves as data X；
Step S2：Lightweight processing is carried out to the part；
Step S3：Case hardness, intensity and the parameters of structural dimension of the part after lightweight processing are measured, and is recorded Save as data X0；
Step S4：Analysis determines the machined parameters of the laser of first time laser quenching, and record saves as data Y0；
Step S5：N-th laser quenching, n >=1 are carried out to the first surface of the part；
Step S6：Case hardness, intensity and the parameters of structural dimension of the part after laser quenching are detected, and records guarantor Save as data Xn；
Step S7：By the data Xn and Xn-1 comparative analyses, and according to its relative difference and error transfer factor laser Machined parameters, and the machined parameters record after adjustment is saved as into data Yn；
Step S8：Judge whether the error between the data Xn and the data X is less than preset error value, if it is, Then machine, if it is not, then repeat step S5.
It is preferred that, between the step S1 and the step S2, in addition to：
Step S1A：Analysis calculates the initial data X, and obtaining should under the initiated failure life-span rigidity for ensureing the part The structure minimum dimension of part；
The step S3 is specially：Lightweight processing is carried out to the part according to the structure minimum dimension.
It is preferred that, in the step S5, when the first surface to the part carries out laser quenching, if the part First surface be large area, low precision, high performance piece surface, then select continous way laser beam to carry out laser quenching, such as The first surface of really described part be complicated, high accuracy, the piece surface of small range, then strobe pulse formula laser beam swashed Photoquenching.
It is preferred that, after the step S8, in addition to：
Step S9：For the complex surface of depression iso-stress concentration zones sharp in the part, strobe pulse formula laser beam Carry out quenching processing.
It is preferred that, after the step S9, in addition to：
Step S10：Carry out n-th laser quenching to the second surface of the part, and repeating said steps S6 is to described Step S8；
Or, step S10A：The part is overturn, n-th laser quenching is carried out to the reverse side of the part, and repeat institute Step S6 is stated to the step S8.
It is preferred that, after the step S10, in addition to：
Step S11：After all surfaces of the part complete laser quenching processing, the overall dimensions of the part are detected And whether surface characteristic reaches standard requirement, and calculate corresponding error；The bulk strength of the part is checked, and verified Whether its fatigue life intensity meets standard.
A kind of laser thermodynamic activity cooperates with variation rigidity loss of weight lightweight system, including：
YAG laser, for launching high-energy-density laser beam；
Annealing device, for the laser beam flying metal parts surface of certain power to be carried out into laser quenching；
Real-time monitoring device, for detecting case hardness, intensity and physical dimension of the part after laser quenching Parameter；
Controller, for feedback regulation annealing device, and Real-time Feedback adjusts LASER SPECKLE size and the depth of focus, real Existing surface hardening.
It is preferred that, after the controller is specifically for comparative analysis each time laser quenching, the case hardness of the part, Difference between intensity and parameters of structural dimension, and determine the machined parameters of laser.
It is preferred that, the annealing device includes being used for the laser head for quenching the piece surface and described for driving The mobile device of laser head movement.
It is preferred that, in addition to for holding parts, and can drive the parts turn to process each surface of the part Rotating device.
Laser thermodynamic activity collaboration variation rigidity loss of weight light weight method provided by the present invention and system, wherein method include Following steps：Initiated failure life-span, case hardness, intensity and the parameters of structural dimension for measuring part are used as the original of the part Beginning data, and record saves as data X；Lightweight processing is carried out to the part；Measure the part after lightweight processing Case hardness, intensity and parameters of structural dimension, and record saves as data X0；Analysis determines the laser of first time laser quenching The machined parameters of device, and record saves as data Y0；N-th laser quenching is carried out to the first surface of the part；Detection swashs The case hardness of the part, intensity and parameters of structural dimension after photoquenching, and record saves as data Xn；By the data Xn and Xn-1 comparative analyses, and according to its relative difference and the machined parameters of error transfer factor laser, and by the processing after adjustment Reference record saves as data Yn；Judge whether the error between the data Xn and the data X is less than preset error value, such as Fruit is then to machine, if it is not, then repeating quenching Step.The laser thermodynamic activity cooperates with variation rigidity loss of weight light weight method, It can effectively mitigate in aviation field, the weight of design of part part, reduce consumptive material, meanwhile, it is possible to prevente effectively from design of part The reduction of the performances such as hardness, strength and stiffness, the function of design of part can be guaranteed, to complete corresponding function.
Laser thermodynamic activity provided by the present invention cooperates with variation rigidity loss of weight lightweight system, including：YAG laser, is used In transmitting high-energy-density laser beam；Annealing device, for the laser beam flying metal parts surface of certain power to be swashed Photoquenching；Real-time monitoring device, for detecting case hardness, intensity and physical dimension ginseng of the part after laser quenching Number；Controller, for feedback regulation annealing device, and Real-time Feedback adjusts LASER SPECKLE size and the depth of focus, realizes table Face is quenched.The laser thermodynamic activity cooperates with variation rigidity loss of weight lightweight system, can be direct after part component loss of weight lightweight Unit is oriented to by laser head and laser beam and carries out laser quenching, then surface delta data is fed back by real-time monitoring device To controller, laser beam power is adjusted flexibly using PCU Power Conditioning Unit, the parameter such as LASER SPECKLE and firing rate reaches surface The performances such as intensity, hardness, the rigidity of quenching effect, i.e. part are strengthened, meanwhile, YAG laser can launch high-energy-density and swash Light beam, thus part progress Darkening process need not be quenched, it can directly carry out laser quenching.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the flow chart that laser thermodynamic activity provided by the present invention cooperates with variation rigidity loss of weight light weight method；
Fig. 2 is the schematic diagram that laser thermodynamic activity provided by the present invention cooperates with variation rigidity loss of weight light weight method；
Fig. 3 is that laser thermodynamic activity provided by the present invention cooperates with a kind of specific embodiment party of variation rigidity loss of weight lightweight system The structural representation of formula；
Wherein：1- rotating devices；2- laser heads；3- mobile devices；4- controllers；5- annealing devices；6-YAG laser Device；7- laser beams are oriented to unit；8- PCU Power Conditioning Units；9- real-time monitoring devices.
Embodiment
The core of the present invention is to provide a kind of laser thermodynamic activity collaboration variation rigidity loss of weight light weight method and system, can On the premise of part performance is ensured, the weight of part is significantly reduced.
In order that those skilled in the art more fully understand the present invention program, with reference to the accompanying drawings and detailed description The present invention is described in further detail.
Fig. 1 to Fig. 3 is refer to, Fig. 1 is laser thermodynamic activity provided by the present invention collaboration variation rigidity loss of weight lightweight side The flow chart of method；Fig. 2 is the schematic diagram that laser thermodynamic activity provided by the present invention cooperates with variation rigidity loss of weight light weight method；Figure 3 be that a kind of laser thermodynamic activity provided by the present invention collaboration structure of embodiment of variation rigidity loss of weight lightweight system is shown It is intended to.
In this embodiment, laser thermodynamic activity collaboration variation rigidity loss of weight light weight method comprises the following steps：
Step S1：Initiated failure life-span, case hardness, intensity and the parameters of structural dimension of measurement part are used as part Initial data, and record saves as data X；
Step S2：Lightweight processing is carried out to part；
Step S3：Case hardness, intensity and the parameters of structural dimension of part after lightweight processing are measured, and records preservation For data X0；
Step S4：Analysis determines the machined parameters of the laser of first time laser quenching, and record saves as data Y0；
Step S5：N-th laser quenching, n >=1 are carried out to the first surface of part；
Step S6：Case hardness, intensity and the parameters of structural dimension of part after laser quenching are detected, and record is saved as Data Xn；
Step S7：By data Xn and Xn-1 comparative analysis, and according to the processing of its relative difference and error transfer factor laser Parameter, and the machined parameters record after adjustment is saved as into data Yn；
Step S8：Judge whether the error between data Xn and data X is less than preset error value, if it is, processing Into if it is not, then repeat step S5.
The laser thermodynamic activity cooperates with variation rigidity loss of weight light weight method, effectively can mitigate in aviation field, part knot The weight of component, reduces consumptive material, meanwhile, it is possible to prevente effectively from the reduction of the performance such as the hardness of design of part, strength and stiffness, zero The function of part structure can be guaranteed, to complete corresponding function.
Further, between step S1 and step S2, in addition to：
Step S1A：Analysis calculates initial data X, obtains the knot of the part under the initiated failure life-span rigidity for ensureing part Structure minimum dimension；
Step S3 is specially：Lightweight processing is carried out to part according to structure minimum dimension.
On the basis of the respective embodiments described above, specifically included between step S4 and step S5：
Step S41：First time laser quenching is carried out to the first surface of part；
Step S42：Case hardness, intensity and the parameters of structural dimension of part after first time laser quenching are detected, and is remembered Record saves as data X1；
Step S43：By data X1And X0Comparative analysis, and joined according to the processing of its relative difference and error transfer factor laser Number, and the machined parameters record after adjustment is saved as into data Y1。
On the basis of the respective embodiments described above, in step S5, when the first surface to part carries out laser quenching, adopt Processed, if the first surface of part is large area, low precision, high performance piece surface, selected with two kinds of mode of operations Continous way laser beam carries out laser quenching, if the first surface of part is complicated, high accuracy, the piece surface of small range, Then strobe pulse formula laser beam carries out laser quenching.
On the basis of the respective embodiments described above, in step S5, " variable element " quenching process can also be used：I.e. in part Different parts, the performance requirement such as intensity is different, minimal thickness is also not near identical, then can reduce laser at the thicker position of part The parameters such as power, the parameters such as laser power can be increased in part thinner part.
On the basis of the respective embodiments described above, in step S5, " trailing type " processing mode can be used：I.e. laser beam is swept Retouch after heat-treatment quenching, be separated by certain cool time, the processing performances such as case hardness are detected, then change parameter, Again to surface carry out laser quenching, at least the performance such as hardness of piece surface reach variation rigidity be thinned before standard.Also It is to say, when carrying out n-th laser quenching and (n+1)th laser quenching to part, difference default cool time.
On the basis of the respective embodiments described above, in step S5, processing can also be strengthened using " two plane type "：I.e. in high humidity Spend, under the harsh environment such as high-temperature, the positive and negative surface of lightweight component structure need to be strengthened, while ensureing that its center portion performance has Certain toughness.It is, of course, also possible to using " rotary " laser quenching：Movable laser quenching unit is fixed, passes through rotation Workpiece, carries out positive and negative, the laser quenching of different parts.
On the basis of the respective embodiments described above, after step S8, in addition to：
Step S9：For the complex surface of depression iso-stress concentration zones sharp in part, strobe pulse formula laser beam is carried out Quenching processing, with the intensity for the complex surface for ensureing part, it is to avoid strength weak position occur, influences the performance of whole part.
On the basis of the respective embodiments described above, after step S9, in addition to：
Step S10：N-th laser quenching, and repeat step S6 to step S8 are carried out to the second surface of part；
Or, step S10A：Part is overturn, n-th laser quenching is carried out to the reverse side of part, and repeat step S6 is extremely walked Rapid S8.
Certainly, carried out after the processing for part reverse side can be machined in whole fronts of part, main purpose is Each face of part is processed, certainly, should be according to each surface to ensure the combination property of part different surfaces Design feature and the difference of requirement, select no laser quenching parameter to be processed.
On the basis of the respective embodiments described above, after step S10, in addition to：
Step S11：After all surfaces of part complete laser quenching processing, detect that the overall dimensions of part and surface are special Property whether reach standard requirement, and calculate corresponding error；The bulk strength of part is checked, and verifies that its fatigue life is strong Whether degree meets standard.
Specifically, the laser thermodynamic activity collaboration variation rigidity loss of weight light weight method that the present embodiment is provided, is detected first The initial data of piece surface, and X is recorded as, then part is carried out to detect piece surface data after loss of weight lightweight, loss of weight And it is recorded as X0, laser quenching then is carried out to part, through being detected after a period of time to piece surface, and record data Xn, judges Xn (now n=1) and X0Error, utilize Xn and X0Error feedback control laser quenching parameter, then to zero Part is integrally detected, and judges whether Xn and X error meets less than preset error value, if it is not, then being swashed using pulsed Photoquenching carries out laser quenching to the surface of part, if it is, rotating part processes other surfaces, in other tables to part Face is carried out after the processing of certain number of times, detection part surface and record data X0, when the testing result on each surface of part is equal After meeting the requirements, then processing is completed.
The laser thermodynamic activity cooperates with variation rigidity loss of weight light weight method, after design of part is thinned, using laser quenching, Part produces fuel factor and stress effect after being heated by laser, enhances metal parts surface, and its center toughness is constant, it is ensured that subtract The life-span of design of part after weight, strength and stiffness are constant, even better.Specifically, laser thermodynamic activity refers to laser quenching meeting Fuel factor and stress effect are produced, after zero component loss of weight lightweight, two laser effects are acted on simultaneously, part is reached surface hardening Effect.Wherein, more than laser thermal effect refers to laser beam as the rapid heated metal surfaces of thermal source to phase transition temperature, and metal is made Phase transformation is produced, then the heat of piece surface passes to rapidly inside by heat transfer, carry out self-excitation cooling, produce laser thermal effect Harden piece surface；Laser stress effect：Do not apply external force in metal parts, absorb piece surface after laser beam energy and rise rapidly Temperature, produces thermograde, while its thermal expansion or contraction are to a certain degree by external constraint, so as to there is thermal stress to act on zero Part, and produce laser stress effect and strengthen its intensity, rigidity.
In addition to above-mentioned laser thermodynamic activity collaboration variation rigidity loss of weight light weight method, present invention also offers a kind of laser heat Stress effect cooperates with variation rigidity loss of weight lightweight system, as shown in Figure 3.
Laser thermodynamic activity collaboration variation rigidity loss of weight lightweight system includes：
YAG laser, for launching high-energy-density laser beam；
Annealing device, for the laser beam flying metal parts surface of certain power to be carried out into laser quenching；
Real-time monitoring device, for detecting case hardness, intensity and parameters of structural dimension of the part after laser quenching；
Controller, for feedback regulation annealing device, and Real-time Feedback adjusts LASER SPECKLE size and the depth of focus, real Existing surface hardening.
The laser thermodynamic activity cooperates with variation rigidity loss of weight lightweight system, and the process of its laser quenching is, YAG laser 6 Launch high-energy-density laser beam, the laser beam flying metal parts surface of certain power is carried out laser quenching by annealing device 5, Then the detection of real-time monitoring device 9 piece surface performance, passes through the feedback regulation annealing device 5 of controller 4, Real-time Feedback regulation LASER SPECKLE size and the depth of focus, realize that piece surface is quenched.
On the basis of the respective embodiments described above, after controller 4 is specifically for comparative analysis each time laser quenching, part Case hardness, intensity and parameters of structural dimension between difference, and determine the machined parameters of laser.
On the basis of the respective embodiments described above, annealing device 5 include be used for quench piece surface laser head 2 and For the mobile device 3 for driving laser head 2 to move.
On the basis of the respective embodiments described above, in addition to for holding parts, and can drive parts turn with process The rotating device 1 on each surface of part, the rotating device 1 can be used for hanging clamping workpiece, be due to laser using hanging clamping Without external force such as impulsive forces in quenching process, so design of part uses hanging installation way, such as：Two linear fixations.
The system selects neodymium-doped yttrium-aluminum garnet (Nd:YAG) crystal laser, YAG laser 6 can be led with optical fiber Light, metal material is about 50%-60% to the absorptivity of the laser, thus need not quench part progress Darkening process, can Directly to carry out laser quenching.
Specifically, the system includes：Neodymium-doped yttrium-aluminum garnet crystal laser, i.e. YAG laser 6, annealing device 5, Mobile device 3, laser head 2, rotating device 1, real-time monitoring device 9, wherein, annealing device 5 also includes being used to adjust laser Quench the PCU Power Conditioning Unit 8 of power, laser beam and be oriented to unit 7 and controller 4.
More specifically, unit 7 directly can be oriented to by laser head 2 and laser beam after part component loss of weight lightweight Laser quenching is carried out, surface delta data is then fed back into controller 4 by real-time monitoring device 9, using PCU Power Conditioning Unit 8 It is adjusted flexibly laser beam power, the parameter such as LASER SPECKLE and firing rate reaches the intensity, hard of surface hardening effect, i.e. part The performances such as degree, rigidity are strengthened.
Variation rigidity loss of weight light weight method and system is cooperateed with to carry out laser thermodynamic activity provided by the present invention above It is discussed in detail.Specific case used herein is set forth to the principle and embodiment of the present invention, above example Illustrate the method and its core concept for being only intended to help to understand the present invention.It should be pointed out that for the common skill of the art For art personnel, under the premise without departing from the principles of the invention, some improvement and modification can also be carried out to the present invention, these change Enter and modify to also fall into the protection domain of the claims in the present invention.

Claims (10)

1. a kind of laser thermodynamic activity cooperates with variation rigidity loss of weight light weight method, it is characterised in that comprise the following steps：
Step S1：Initiated failure life-span, case hardness, intensity and the parameters of structural dimension of measurement part are used as the part Initial data, and record saves as data X；
Step S2：Lightweight processing is carried out to the part；
Step S3：Case hardness, intensity and the parameters of structural dimension of the part after lightweight processing are measured, and records preservation For data X0；
Step S4：Analysis determines the machined parameters of the laser of first time laser quenching, and record saves as data Y0；
Step S5：N-th laser quenching, n >=1 are carried out to the first surface of the part；
Step S6：Case hardness, intensity and the parameters of structural dimension of the part after laser quenching are detected, and record is saved as Data Xn；
Step S7：By the data Xn and Xn-1 comparative analyses, and according to the processing of its relative difference and error transfer factor laser Parameter, and the machined parameters record after adjustment is saved as into data Yn；
Step S8：Judge whether the error between the data Xn and the data X is less than preset error value, if it is, plus Work is completed, if it is not, then repeat step S5.
2. laser thermodynamic activity according to claim 1 cooperates with variation rigidity loss of weight light weight method, it is characterised in that described Between step S1 and the step S2, in addition to：
Step S1A：Analysis calculates the initial data X, obtains the part under the initiated failure life-span rigidity for ensureing the part Structure minimum dimension；
The step S3 is specially：Lightweight processing is carried out to the part according to the structure minimum dimension.
3. laser thermodynamic activity according to claim 1 cooperates with variation rigidity loss of weight light weight method, it is characterised in that described In step S5, when carrying out laser quenching to the first surface of the part, if the first surface of the part be large area, Low precision, high performance piece surface, then select continous way laser beam to carry out laser quenching, if the first surface of the part For the piece surface of complicated, high accuracy, small range, then strobe pulse formula laser beam progress laser quenching.
4. the laser thermodynamic activity collaboration variation rigidity loss of weight light weight method according to claims 1 to 3 any one, it is special Levy and be, after the step S8, in addition to：
Step S9：For the complex surface of depression iso-stress concentration zones sharp in the part, strobe pulse formula laser beam is carried out Quenching processing.
5. laser thermodynamic activity according to claim 4 cooperates with variation rigidity loss of weight light weight method, it is characterised in that described After step S9, in addition to：
Step S10：Carry out n-th laser quenching to the second surface of the part, and repeating said steps S6 is to the step S8；
Or, step S10A：The part is overturn, n-th laser quenching is carried out to the reverse side of the part, and repeat the step Rapid S6 to the step S8.
6. laser thermodynamic activity according to claim 5 cooperates with variation rigidity loss of weight light weight method, it is characterised in that described After step S10, in addition to：
Step S11：After all surfaces of the part complete laser quenching processing, the overall dimensions and table of the part are detected Whether face characteristic reaches standard requirement, and calculates corresponding error；The bulk strength of the part is checked, and verifies that its is tired Whether labor service life intensity meets standard.
7. a kind of laser thermodynamic activity cooperates with variation rigidity loss of weight lightweight system, it is characterised in that including：
YAG laser, for launching high-energy-density laser beam；
Annealing device, for the laser beam flying metal parts surface of certain power to be carried out into laser quenching；
Real-time monitoring device, for detecting case hardness, intensity and parameters of structural dimension of the part after laser quenching；
Controller, for feedback regulation annealing device, and Real-time Feedback adjusts LASER SPECKLE size and the depth of focus, realizes table Face is quenched.
8. laser thermodynamic activity according to claim 7 cooperates with variation rigidity loss of weight lightweight system, it is characterised in that described After controller is specifically for comparative analysis each time laser quenching, case hardness, intensity and the physical dimension ginseng of the part Difference between number, and determine the machined parameters of laser.
9. laser thermodynamic activity according to claim 7 cooperates with variation rigidity loss of weight lightweight system, it is characterised in that described Annealing device includes the laser head for quenching the piece surface and the mobile dress for driving the laser head movement Put.
10. the laser thermodynamic activity collaboration variation rigidity loss of weight lightweight system according to claim 7 to 9 any one, its It is characterised by, in addition to for holding parts, and the rotation to process each surface of the part of the parts turn can be driven Device.
CN201710277867.5A 2017-04-25 2017-04-25 A kind of laser thermodynamic activity collaboration variation rigidity loss of weight light weight method and system Pending CN107012299A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710277867.5A CN107012299A (en) 2017-04-25 2017-04-25 A kind of laser thermodynamic activity collaboration variation rigidity loss of weight light weight method and system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710277867.5A CN107012299A (en) 2017-04-25 2017-04-25 A kind of laser thermodynamic activity collaboration variation rigidity loss of weight light weight method and system

Publications (1)

Publication Number Publication Date
CN107012299A true CN107012299A (en) 2017-08-04

Family

ID=59448266

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710277867.5A Pending CN107012299A (en) 2017-04-25 2017-04-25 A kind of laser thermodynamic activity collaboration variation rigidity loss of weight light weight method and system

Country Status (1)

Country Link
CN (1) CN107012299A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114891995A (en) * 2022-05-20 2022-08-12 西安必盛激光科技有限公司 Method for dynamically controlling laser quenching parameters

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5798620A (en) * 1980-12-08 1982-06-18 Agency Of Ind Science & Technol Laser working device
JPH01188621A (en) * 1988-01-21 1989-07-27 Brother Ind Ltd Laser hardening device
DE4401698A1 (en) * 1994-01-21 1995-07-27 Fraunhofer Ges Forschung Boundary layer hardening of elongate components
CN1339727A (en) * 2001-09-24 2002-03-13 上海工程技术大学 Computerized digital control system of laser metal surface enhanced processor
ES2293845A1 (en) * 2006-09-25 2008-03-16 Universidad Politecnica De Madrid System for monitoring and controlling heat treatment processes of surface materials using laser, includes reference model, which uses variable input as maximum temperature on material surface and act as variable power output of laser source
CN101275177A (en) * 2007-11-30 2008-10-01 江苏大学 Anti-fatigue controlled laser shot peening method and device therefor
CN201206156Y (en) * 2008-03-10 2009-03-11 华中科技大学 On-line laser machining apparatus for strengthening and toughening treatment of railway track surface

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5798620A (en) * 1980-12-08 1982-06-18 Agency Of Ind Science & Technol Laser working device
JPH01188621A (en) * 1988-01-21 1989-07-27 Brother Ind Ltd Laser hardening device
DE4401698A1 (en) * 1994-01-21 1995-07-27 Fraunhofer Ges Forschung Boundary layer hardening of elongate components
CN1339727A (en) * 2001-09-24 2002-03-13 上海工程技术大学 Computerized digital control system of laser metal surface enhanced processor
ES2293845A1 (en) * 2006-09-25 2008-03-16 Universidad Politecnica De Madrid System for monitoring and controlling heat treatment processes of surface materials using laser, includes reference model, which uses variable input as maximum temperature on material surface and act as variable power output of laser source
CN101275177A (en) * 2007-11-30 2008-10-01 江苏大学 Anti-fatigue controlled laser shot peening method and device therefor
CN201206156Y (en) * 2008-03-10 2009-03-11 华中科技大学 On-line laser machining apparatus for strengthening and toughening treatment of railway track surface

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
周成 等: ""中频淬火在传动轴轻量化上的应用"", 《热加工工艺》 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114891995A (en) * 2022-05-20 2022-08-12 西安必盛激光科技有限公司 Method for dynamically controlling laser quenching parameters
CN114891995B (en) * 2022-05-20 2024-03-15 西安必盛激光科技有限公司 Method for dynamically controlling laser quenching parameters

Similar Documents

Publication Publication Date Title
Katnam et al. Composite repair in wind turbine blades: an overview
CN108890128B (en) Laser multi-beam composite temperature field welding device
CN107262713B (en) Laser impact forging composite processing and forming device and method for coaxial powder feeding in light
CN106119467B (en) A kind of method and apparatus for controlling laser peening parameter monitoring blade surface roughness
CN101328567B (en) Double electron beam partial heat treatment method after refractory metal material is welded
Huang et al. Optimization of weld strength for laser welding of steel to PMMA using Taguchi design method
EP2565282A2 (en) Laser shock peening of airfoils
CN105039652A (en) Laser shock uniform enhancement method with square-shaped light spot used in curved surface
CN104372167A (en) Projection gray scale based method for laser shock homogeneous strengthening of complex curved surface
CN103146893A (en) Method for treating curved surface through laser shock
Ye et al. A critical review of laser shock peening of aircraft engine components
CN107012299A (en) A kind of laser thermodynamic activity collaboration variation rigidity loss of weight light weight method and system
CN110238544A (en) Laser thining method and laser machine
CN204589228U (en) A kind of axial workpiece fast quenching appts
CN102925836B (en) Method and device for laser peening aviation titanium alloy based on dynamic strain aging
CN108544118B (en) Welding method for loading cold source along with welding and controlling load by displacement
CN101929114A (en) Application method of optical device for rail hardening based on train running
Luo et al. Modeling of tow-to-spot diameter ratio for laser cutting of single-layer carbon fiber–reinforced plastics (CFRP)
Cheng et al. Study on preparation and stiffness of NiTi shape memory alloy/2A12 aluminum alloy laminated structure
Baker et al. Use of high-power diode laser arrays for pre-and post-weld heating during friction stir welding of steels
CN112280970A (en) Manufacturing method and device for laser shock composite rolling reinforced metal matrix additive
CN206464699U (en) Ultrahigh speed laser soldering device
CN205230567U (en) Allow iron plate capotasto laser heat treatment device
RU2689346C1 (en) Method for thin-layer carbon fibre sheet laser cutting
孟庆轩 et al. Vaporization-melt ratio mathematical model and experiments of laser cutting sheet metal

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20170804