CN106166659A - The shaping method for maintaining of special-shaped part - Google Patents

The shaping method for maintaining of special-shaped part Download PDF

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Publication number
CN106166659A
CN106166659A CN201510894267.4A CN201510894267A CN106166659A CN 106166659 A CN106166659 A CN 106166659A CN 201510894267 A CN201510894267 A CN 201510894267A CN 106166659 A CN106166659 A CN 106166659A
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CN
China
Prior art keywords
virtual
special
shaped part
material
model
Prior art date
Application number
CN201510894267.4A
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Chinese (zh)
Inventor
齐元胜
赵涛春
李昱
秦志成
王晓华
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北京印刷学院
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Application filed by 北京印刷学院 filed Critical 北京印刷学院
Priority to CN201510894267.4A priority Critical patent/CN106166659A/en
Publication of CN106166659A publication Critical patent/CN106166659A/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00Working by laser beam, e.g. welding, cutting or boring
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23POTHER WORKING OF METAL; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P6/00Restoring or reconditioning objects

Abstract

The invention discloses the shaping method for maintaining of a kind of special-shaped part, its damaged front model comprising the steps: to utilize special-shaped part and mother metal model, it is thus achieved that the sub-material model of special-shaped part;In virtual lf environment, sub-material model and the mother metal model virtual of special-shaped part are melted and be integrated, it is thus achieved that the virtual laser fusion parameters when the virtual Weld Performance conformance with standard formed in virtual melting process;Utilize laser melting method and virtual laser fusion parameters, sub-material and the mother metal of special-shaped part are melted and be integrated.The shaping method for maintaining of the present invention, Virtual Maintenance Technology and laser gain material manufacturing technology are combined, before guaranteeing properity and the breakage of the special-shaped part after maintenance identical, improve the performance of special-shaped part after repairing, extend the use cycle of special-shaped part, save substantial amounts of human and material resources and financial resources so that the reuse ratio of special-shaped part is high, and maintenance cycle is short, maintenance effect good.

Description

The shaping method for maintaining of special-shaped part

Technical field

The present invention relates to Forming Technique field, particularly relate to the shaping method for maintaining of a kind of special-shaped part.

Background technology

At present, frequently with special-shaped part in irregular shape (or component), this kind of special-shaped part in plant equipment Complicated structure, higher to required precision, when part occur crackle or damaged time, replacing zero is usually taken The mode of part, this method causes loses huge because of part rejection, and renewal part needs longer production week Phase and higher production cost.

Additionally, in prior art, special-shaped part crackle or breakage occur be may also take on following two maintenance Method is keeped in repair:

1, compound sticking maintenance technique: technique is to be covered in defect area with a kind of sticking synthetic fibers Territory carries out bonding strengthening.But this technology is only capable of being directed to the situation that part crackle occurs, not yet ruptures, for The part fragmenting into two pieces can not be repaired, and, this technology reparation mostly be axial workpiece or housing class Part, range of application is narrow.

2, technology for repairing surfacing: technique is by carrying out built-up welding at part crack or fray, then, Through sanding and polishing to reach to repair the purpose of part.But technique only can be suitably used for part crack or fray Reparation, the part fragmenting into two pieces can not be repaired, additionally, this technology cannot ensure repair after The shape of part is consistent with the shape of original part.

To sum up, either compound sticking or Bead weld repair, all there is the abnormity zero after length repair time, reparation Part has the unwarrantable shortcoming of deformation, precision, causes the loss of human and material resources, financial resources.

Summary of the invention

The purpose of the present invention is contemplated to solve the problems referred to above, it is provided that the shaping method for maintaining of a kind of special-shaped part, It is in special-shaped part maintenance process, Virtual Maintenance Technology and laser gain material manufacturing technology is combined, it is ensured that dimension The properity of the special-shaped part after repairing is identical with the properity before breakage, improves special-shaped part after repairing Performance and its with use environment matching degree, extend special-shaped part the use cycle, save substantial amounts of manpower, Material resources and financial resources so that the reuse ratio of damaged special-shaped part is high, and maintenance cycle is short, maintenance effect is good.

For realizing the above-mentioned purpose of the present invention, the present invention provides the shaping method for maintaining of a kind of special-shaped part, its bag Include following steps:

Set up respectively special-shaped part damaged before mother metal model after model and breakage;

Utilize damaged front model and the mother metal model of special-shaped part, it is thus achieved that the sub-material model of special-shaped part;

In virtual lf environment, the sub-material model of special-shaped part and mother metal model virtual being melted is one Body, it is thus achieved that the melted ginseng of the virtual laser when the virtual Weld Performance conformance with standard formed in virtual melting process Number;

Utilize the sub-material model of special-shaped part, it is thus achieved that the sub-material of special-shaped part;

Utilize laser melting method and described virtual laser fusion parameters, by sub-material and the mother metal of special-shaped part Melt and be integrated, in order to complete the maintenance to mother metal.

Wherein, in virtual lf environment, sub-material model and the mother metal model virtual of special-shaped part are melted Combine together and comprise the steps:

In virtual lf environment, described sub-material model and described mother metal model are carried out virtual melted company Connect, to obtain the virtual special-shaped part after Virtual Maintenance;

According to virtual special-shaped part, it is thus achieved that its virtual parameter, and virtual parameter is estimated;

According to assessment result, it is determined whether need the mother metal of special-shaped part is keeped in repair.

Wherein, it is thus achieved that its virtual parameter also is estimated including walking as follows by the virtual parameter of virtual special-shaped part Rapid:

Obtain virtual special-shaped part includes that its overall dimensions, hardness, abrasion resistance, surface roughness, mechanics are joined Number, the virtual parameter of Weld Performance;

The virtual parameter of virtual special-shaped part is compared with the relevant parameter of special-shaped part.

Wherein, according to assessment result, determine that needing the mother metal to special-shaped part to carry out maintenance comprises the steps:

If the virtual parameter of virtual special-shaped part meets the requirements with the comparison result of the relevant parameter of special-shaped part, then Obtain satisfactory virtual laser fusion parameters;

If comparison result is undesirable, then described sub-material model and described mother metal model are carried out again or repeatedly Virtual melted connection, to obtain satisfactory virtual laser fusion parameters.

Wherein, it is thus achieved that the sub-material of special-shaped part is the method shaped by laser gain material.

Further, it is thus achieved that after the sub-material model of special-shaped part, by the sub-material model of special-shaped part and mother metal mould Type virtual melted be integrated before, also include the step that described sub-material model is carried out virtual scene modeling.

Wherein, described sub-material model is carried out virtual scene modeling to comprise the steps:

The described sub-material model of special-shaped part is carried out hierarchy slicing process, in order to obtain constituting sub-material model many The information of individual section unit;

Utilize virtual laser gain material method and the plurality of section unit information, form the virtual subnet of special-shaped part Material;

Virtual subnet material is estimated, it is thus achieved that the performance of virtual subnet material reaches lf parameter during requirement.

Wherein, it is estimated comprising the steps: to described virtual subnet material

Obtain described virtual subnet material include its overall dimensions, surface roughness, compact density, material property, The virtual performance parameter of mechanical performance;

The relevant parameter of the virtual performance parameter of virtual subnet material with mother metal is compared.

Wherein, the information of described section unit includes thickness and the quality of section unit.

Wherein, the described damaged front model utilizing special-shaped part and mother metal model, the sub-material mould of acquisition special-shaped part Type is as follows:

The damaged front model of comparison special-shaped part and mother metal model, and model before breakage and mother metal model are carried out cloth That computing, it is thus achieved that the sub-material model of special-shaped part.

Compared with prior art, the shaping method for maintaining of the special-shaped part of the present invention has the advantage that

The shaping method for maintaining of the present invention, combines Virtual Maintenance method and real laser gain material method to zero Part keeps in repair, and is just complete the assessment of maintenance effect before maintenance, it is ensured that the part of maintenance postforming Structure identical with the structure of part before breakage so that the performance of the part after maintenance can be up to or over broken The performance of part before damaging, thus improve the reuse ratio of part, and for renewal part, the present invention ties up The maintenance cost repairing method is relatively low, maintenance cycle is short, maintenance effect good.

The present invention is described in detail below in conjunction with the accompanying drawings.

Accompanying drawing explanation

Fig. 1 is the maintenance flow figure shaping method for maintaining of the special-shaped part of the present invention;

Fig. 2 applies to the damaged front 3-dimensional digital mould before the non-breakage of blade shaping method for maintaining of the present invention Type figure;

Fig. 3 is the mother metal three-dimensional digital model figure after the blade breakage shown in Fig. 2;

Fig. 4 is the sub-material three-dimensional digital model figure in the blade breakage portion shown in Fig. 2;

Fig. 5 is the three-dimensional digital model figure of virtual blade formed after the Virtual Maintenance using the present invention.

Detailed description of the invention

After the present invention provides a kind of special-shaped part to damage, to the mother metal method that forms maintenance after damaging, as Shown in Fig. 1, the shaping method for maintaining of the present invention comprises the steps:

Set up respectively special-shaped part damaged before mother metal model after model and breakage;

Utilize damaged front model and the mother metal model of special-shaped part, it is thus achieved that the sub-material model of special-shaped part;

In virtual lf environment, the sub-material model of special-shaped part and mother metal model virtual being melted is one Body, it is thus achieved that the melted ginseng of the virtual laser when the virtual Weld Performance conformance with standard formed in virtual melting process Number;

Utilize the sub-material model of special-shaped part, it is thus achieved that the sub-material of special-shaped part;

Utilize laser melting method and virtual laser fusion parameters, sub-material and the mother metal of special-shaped part are melted It is integrated, in order to complete the maintenance to mother metal.

Wherein, the special-shaped part of the present invention includes the part with labyrinth, thin-walled, and these designs of part are firm Property is poor, in irregular shape, how to be made up of complex-curved, such as, and blade, and utilize the sub-material mould of special-shaped part Type, the sub-material of acquisition special-shaped part are that the method (that is, the method that 3D prints) using laser gain material to shape becomes The sub-material of shape.

Below, only as a example by blade, the method that special-shaped part forms maintenance of the present invention is described. Concrete, blade is formed maintenance and comprises the steps:

Mother metal model 2 after S10, the damaged front model 1 setting up blade respectively and breakage.

Before the non-breakage of blade, according to the correlation performance parameters (such as overall dimensions, material etc.) of blade, and Utilize existing 3-dimensional digital modeling software (such as UG, CATIA, PROE, 3DMAX etc.), set up The damaged front three-dimensional digital model (the most damaged front model 1 herein) of completeblade, before this breakage, model 1 should Comprise whole overall dimensions of blade, as shown in Figure 2.

When after blade wear or fracture, utilize the machining process of prior art to after blade breakage, it waits to tie up The incision position repairing part (i.e. the mother metal of blade) carries out grinding process, removes the oxide skin of mother metal fracture surface, Making invisible bulk oxide skin, fracture surface is smooth.

The 3-dimensional digital modeling software that utilization is identical with the damaged front model 1 setting up blade, with after grinding process Mother metal be material, set up the mother metal model 2 after blade breakage, as shown in Figure 3.

S20, the damaged front model 1 utilizing the blade set up and mother metal model 2, it is thus achieved that the sub-material model 3 of blade.

By damaged front model 1 and the mother metal model 2 of comparison blade, 3-dimensional digital same as described above is utilized to build Mould software carries out Boolean calculation to model before breakage 1 and mother metal model 2, it is possible to obtain blade as shown in Figure 4 The model (the most sub-material model 3) in the damaged portion (the most sub-material) formed after breakage.

S30, in virtual lf environment, by empty to the sub-material model 3 of special-shaped part and mother metal model 2 Intend melted being integrated, it is thus achieved that the void when the virtual weld seam 4 performance conformance with standard formed in virtual melting process Intend lf parameter

S301, obtain blade sub-material model 3 after, antithetical phrase material model 3 carries out virtual scene modeling.

Step 1, utilize delamination software (such as ANSYS software) that the sub-material model 3 of blade is layered Slicing treatment, is divided into multiple section unit by sub-material model 3, and obtains the relevant information of each section unit, Such as information such as the thickness of each section unit, quality, sizes.

Step 2, the multiple section unit utilizing the virtual laser in ANSYS software to increase material method and acquisition are believed Multiple section unit successively lamination cladding are processed under virtual environment, produce the virtual subnet material of blade by breath, And the process producing virtual subnet material is carried out temperature field and analysis on Stress Field.

Step 3, temperature field according in virtual subnet material production process, analysis on Stress Field and the virtual subnet produced Material, carries out virtual assessment to virtual subnet material, and assessment comprises the steps:

Obtain virtual subnet material includes its overall dimensions, surface roughness, compact density, material property, machinery The virtual performance parameter of performance etc.;

The relevant parameter of the above-mentioned virtual performance parameter of virtual subnet material with mother metal is compared;

If after comparison, the above-mentioned virtual performance parameter of virtual subnet material reaches the requirement of mother metal relevant parameter, then obtain Lf parameter when producing this virtual subnet material (include laser power, metal send a point rate, laser scanning speed, Spot diameter etc.);

If after Dui Bi, the above-mentioned virtual performance parameter of virtual subnet material fails to reach the requirement of mother metal relevant parameter, then Lf parameter during amendment simulated production virtual subnet material and the material of virtual subnet material repeatedly, until produce The above-mentioned virtual performance parameter of virtual subnet material reaches the requirement of mother metal relevant parameter, then obtains and produces this virtual subnet Lf parameter during material.

The present invention, before the formal sub-material producing blade, first uses virtual laser gain material method to produce blade Virtual subnet material, and by the lf parameter in amendment simulation process repeatedly and the material of virtual subnet material, in order to Draw virtual subnet material that there is good mechanical properties, that reach mother metal parameter request, thus this is virtual to obtain production Lf parameter during sub-material and the material of virtual subnet material, in order to this lf parameter can be applied in reality Employing laser gain material method produce during sub-material, save the cost of the sub-material of actual production.

S302, antithetical phrase material model 3 carry out virtual scene modeling, produce virtual subnet material after, by the sub-material model of blade 3 and mother metal model 2 is virtual melted is integrated, it is thus achieved that in virtual weld seam 4 property formed in virtual melting process Virtual laser fusion parameters during energy conformance with standard.

(ANSYS software is such as utilized), the sub-material model to above-mentioned blade in virtual lf environment 3 and mother metal model 2 carry out virtual melted connection (that is, carrying out Virtual Maintenance), after obtaining Virtual Maintenance Virtual blade 1 '.

According to virtual blade 1 ', it is thus achieved that its virtual parameter, the virtual parameter of this virtual blade 1 ' includes its profile Size, hardness, abrasion resistance, surface roughness, mechanics parameter, the weld seam 4 performance (strong degree such as weld seam 4 With mechanical property etc.) parameter.

When after the virtual parameter obtaining virtual blade 1 ', by the above-mentioned relevant parameter of virtual parameter Yu real blade Carry out Evaluation one by one, and according to assessment result, it is determined whether need the mother metal of blade is keeped in repair.

Wherein, according to assessment result, determine that needing the mother metal to blade to carry out maintenance comprises the steps:

If the comparison result after the virtual parameter of virtual blade 1 ' and the relevant parameter comparison of real blade conforms to Ask, then obtain satisfactory virtual laser fusion parameters;

If comparison result is undesirable, then in virtual lf environment, antithetical phrase material model 3 and mother metal The virtual melted connection that model 2 is carried out again or repeatedly (that is, repeats above steps, if it is desired, also may be used Adjust the performance parameter of sub-material model 3), in order to finally obtain satisfactory virtual laser fusion parameters.

If according to assessment result, determining and need not the mother metal of blade is keeped in repair, then the blade that can only more renew.

The present invention is by virtual lf environment, enter sub-material model 3 and the mother metal model 2 of blade The virtual melted connection of row (i.e. Virtual Maintenance) forms virtual blade 1 ', and by virtual blade 1 ' is correlated with Parameter (especially weld seam 4 mass, such as strong degree and the mechanical property of weld seam 4) is estimated, and draws broken Damage rear blade mother metal keep in repair after quality, determine whether to need mother metal is keeped in repair, and obtain can Virtual laser fusion parameters during so that mother metal is keeped in repair, and this virtual laser fusion parameters is used for instructing truly During maintenance, parameter required during laser melting.

S40, utilize the sub-material model 3 of blade, it is thus achieved that the sub-material of blade.

In true environment (in the environment that i.e. reality produces), the method using laser gain material, produce blade Sub-material.Wherein, lf parameter involved during the sub-material of true production, in employing step S301, The virtual lf parameter used when producing satisfactory virtual subnet material.

S50, in true environment, utilize laser melting method and virtual laser fusion parameters, by blade Sub-material and mother metal is melted is integrated, in order to complete the maintenance to mother metal.

In true environment, use the method for laser melting that sub-material and the mother metal of blade are melted and be integrated, As shown in Figure 5.Wherein, lf parameter involved when melted sub-material and mother metal, use step S302 In, satisfactory virtual laser fusion parameters.

Wherein, by mother metal and sub-material melted be integrated during, utilize of the prior art have coaxially give Mother metal is utilized laser to preheat by the lf equipment of point device, then sub-material is fitted on mother metal, by mother metal and Sub-material is melted is joined together to form blade, then blade is placed in protective gas cooling, completes mother metal Maintenance.Can swash with utilization in prior art it should be noted that mother metal and sub-material to be melted the process being integrated The process that two components are connected as one by light fusion apparatus is identical, is not described its details at this.

After mother metal is completed maintenance, after the blade after maintenance being carried out by aftertreatment technologys such as polishing, polishings Continuous process, to improve maintenance further, and carries out last maintenance evaluation.

The shaping method for maintaining of the present invention may be used for multiple field, such as the maintenance to precision optical machinery vitals, Such as the reparation etc. to historical relic, in addition to the maintenance being applicable to special-shaped part, it is also applied for that there is simple shape zero The maintenance of part.

The shaping method for maintaining of the present invention, combines Virtual Maintenance method and real laser gain material method to zero Part keeps in repair, and is just complete the assessment of maintenance effect before maintenance, it is ensured that the part of maintenance postforming Structure identical with the structure of part before breakage so that the performance of the part after maintenance can be up to or over broken The performance of part before damaging, thus improve the reuse ratio of part, and for renewal part, the present invention ties up The maintenance cost repairing method is relatively low, maintenance cycle is short, maintenance effect good.

The shaping method for maintaining of the present invention, three-dimensionalreconstruction based on former part, design of part, shape are accurate, and one Secondary property grows, and the cycle is short, can not tear machine maintenance open, save human and material resources and financial resources, save production cost, Improve production efficiency.

Although the present invention has been described above with particularity, but the invention is not restricted to this, the technology people of the art Member can modify according to the principle of the present invention, therefore, and the various amendments that all principles according to the present invention are carried out All should be understood to fall into protection scope of the present invention.

Claims (10)

1. the shaping method for maintaining of a special-shaped part, it is characterised in that comprise the steps:
Set up respectively special-shaped part damaged before mother metal model after model and breakage;
Utilize damaged front model and the mother metal model of special-shaped part, it is thus achieved that the sub-material model of special-shaped part;
In virtual lf environment, the sub-material model of special-shaped part and mother metal model virtual being melted is one Body, it is thus achieved that the melted ginseng of the virtual laser when the virtual Weld Performance conformance with standard formed in virtual melting process Number;
Utilize the sub-material model of special-shaped part, it is thus achieved that the sub-material of special-shaped part;
Utilize laser melting method and described virtual laser fusion parameters, by sub-material and the mother metal of special-shaped part Melt and be integrated, in order to complete the maintenance to mother metal.
Shaping method for maintaining the most according to claim 1, it is characterised in that at virtual lf In environment, sub-material model and melted being integrated of mother metal model virtual of special-shaped part are comprised the steps:
In virtual lf environment, described sub-material model and described mother metal model are carried out virtual melted company Connect, to obtain the virtual special-shaped part after Virtual Maintenance;
According to virtual special-shaped part, it is thus achieved that its virtual parameter, and virtual parameter is estimated;
According to assessment result, it is determined whether need the mother metal of special-shaped part is keeped in repair.
Shaping method for maintaining the most according to claim 2, it is characterised in that obtain virtual special-shaped part Virtual parameter and be estimated comprising the steps: to its virtual parameter
Obtain virtual special-shaped part includes that its overall dimensions, hardness, abrasion resistance, surface roughness, mechanics are joined Number, the virtual parameter of Weld Performance;
The virtual parameter of virtual special-shaped part is compared with the relevant parameter of special-shaped part.
Shaping method for maintaining the most according to claim 3, it is characterised in that according to assessment result, really Surely need the mother metal to special-shaped part to carry out maintenance to comprise the steps:
If the virtual parameter of virtual special-shaped part meets the requirements with the comparison result of the relevant parameter of special-shaped part, then Obtain satisfactory virtual laser fusion parameters;
If comparison result is undesirable, then described sub-material model and described mother metal model are carried out again or repeatedly Virtual melted connection, to obtain satisfactory virtual laser fusion parameters.
5. according to the shaping method for maintaining described in any one of claim 1-4, it is characterised in that obtain abnormity zero The sub-material of part is the method shaped by laser gain material.
Shaping method for maintaining the most according to claim 5, it is characterised in that obtain the son of special-shaped part After material model, sub-material model and the mother metal model virtual of special-shaped part being melted before being integrated, it is right also to include Described sub-material model carries out the step of virtual scene modeling.
Shaping method for maintaining the most according to claim 6, it is characterised in that described sub-material model is entered Row virtual scene modeling comprises the steps:
The described sub-material model of special-shaped part is carried out hierarchy slicing process, in order to obtain constituting sub-material model many The information of individual section unit;
Utilize virtual laser gain material method and the plurality of section unit information, form the virtual subnet of special-shaped part Material;
Virtual subnet material is estimated, it is thus achieved that the performance of virtual subnet material reaches lf parameter during requirement.
Shaping method for maintaining the most according to claim 7, it is characterised in that described virtual subnet material is entered Row assessment comprises the steps:
Obtain described virtual subnet material include its overall dimensions, surface roughness, compact density, material property, The virtual performance parameter of mechanical performance;
The relevant parameter of the virtual performance parameter of virtual subnet material with mother metal is compared.
Shaping method for maintaining the most according to claim 7, it is characterised in that the letter of described section unit Breath includes thickness and the quality of section unit.
Shaping method for maintaining the most according to claim 1, it is characterised in that described utilize special-shaped part Damaged before model and mother metal model, the sub-material model that obtains special-shaped part be as follows:
The damaged front model of comparison special-shaped part and mother metal model, and model before breakage and mother metal model are carried out cloth That computing, it is thus achieved that the sub-material model of special-shaped part.
CN201510894267.4A 2015-12-08 2015-12-08 The shaping method for maintaining of special-shaped part CN106166659A (en)

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Application publication date: 20161130