CN106591827B - A kind of automobile die laser repairing process of high rigidity - Google Patents
A kind of automobile die laser repairing process of high rigidity Download PDFInfo
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- CN106591827B CN106591827B CN201611050174.4A CN201611050174A CN106591827B CN 106591827 B CN106591827 B CN 106591827B CN 201611050174 A CN201611050174 A CN 201611050174A CN 106591827 B CN106591827 B CN 106591827B
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- 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
- C23C24/10—Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
- C23C24/103—Coating with metallic material, i.e. metals or metal alloys, optionally comprising hard particles, e.g. oxides, carbides or nitrides
- C23C24/106—Coating with metal alloys or metal elements only
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C30/00—Alloys containing less than 50% by weight of each constituent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/38—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
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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)
- Laser Beam Processing (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
The invention discloses a kind of automobile die laser repairing process of high rigidity, comprising the following steps: (1) pre-processes to die surface, usually first using fine sandpaper by impaired die surface sanding and polishing, and carry out cleaning treatment to repair surface with ethyl alcohol；Then die surface spot is dried with acetylene-oxygen flame；(2) it is heat-treated: mold being heat-treated, is heated up to 200 DEG C or more, and keep the temperature half an hour or more；(3) laser melting coating inner alloy powder is used；(4) laser melting coating middle layer alloy powder is used after temperature is cooled to 600-800 DEG C；(5) laser melting coating outer layer alloys powder is used after temperature is cooled to 300-500 DEG C；(6) it is cooled to room temperature, mold is cleaned using cleaning agent.The automobile die laser repairing process of this high rigidity avoids conventional laser cladding since the speed for heating and cooling down is exceedingly fast, and the defect generated in cladding layer caused by temperature change is too big improves the hardness of cladding layer.
Description
Technical field
The present invention relates to automobile die field, the automobile die laser repairing process of specifically a kind of high rigidity.
Background technique
Automobile die is that the general name of the mold of punching body of a motor car stamping parts includes stamping die, injection mold, forge mould
Tool, casting wax-pattern, glass mold etc..The most important component part of automobile die is exactly cladding member mold.This kind of mold is mainly
Cold-punching mould.
Stamping parts on body of a motor car is generally divided into covering, beam frame piece and general stamping parts.It can obviously indicate
The stamping parts of vehicle image feature is automobile panel.Therefore, it is " automobile panel that the automobile die more refered in particular to, which can be said to,
Stamping die ".Abbreviation automobile panel punch die.For example, front truck external door panel trimming die, front vehicle door inner plate piercing die etc..Such as: top
Lid flange die, cross member reinforcing plate pressure-shaped mould etc., automobile die plays a very important role in automobile industry.In recent years
Come, with the rapid development of domestic automobile process industry, the Die Manufacturing Enterprise development in China is very rapid, achieves very big
Progress, but compared with Foreign Automobile mold manufactures advanced level, there are still obvious gaps.Currently, mould and die accuracy is poor, the service life
Short, development cycle length is the mortal wound of domestic automobile mold.There is the case where mistake processing in manufacturing process in domestic automobile mold,
Different degrees of abrasion can be generated in use, and the scrappage of mold is up to 30%, causes huge waste.For with
Upper problem is domestic at present mainly to be handled using common built-up welding to repair to automobile die, but since mold materials are mostly high
Carbon alloy steel or cast steel, common built-up welding can carry out the disadvantages of deflection is big, hardness is insufficient, easy to crack to die strip, seriously affect mould
The service precision of tool causes product quality produced to decline.
With being constantly progressive for laser melting and coating technique, mould repair more and more tend to using laser melting and coating technique into
Row mould repair, laser melting and coating technique refer to the coating material for placing selection on being coated matrix surface in a manner of different fillers
Material is allowed to melt simultaneously with matrix surface a thin layer through laser irradiation, and dilution is extremely low and and matrix for formation after quickly solidifying
Material at metallurgical bonding surface covering, to significantly improve the wear-resisting, anti-corrosion, heat-resisting, anti-oxidant and electric of substrate material surface
The process of device characteristic etc..But laser melting and coating technique throws away the instable defect there is quality of cladding layer, a convenience
Do not reach requirement the hardness of cladding layer.In laser cladding process, heating and cooling speed are exceedingly fast, and maximum speed is reachable
1012 DEG C/s, so fast temperature change may generate number of drawbacks in cladding layer, mainly include stomata, crackle, deformation and
Surface irregularity, these also can all influence the hardness of cladding layer.
Summary of the invention
The purpose of the present invention is to provide a kind of automobile die laser repairing process of high rigidity, to solve above-mentioned background skill
The problem of being proposed in art.
To achieve the above object, the invention provides the following technical scheme:
A kind of automobile die laser repairing process of high rigidity, key step are as follows:
(1) die surface is pre-processed, usually first using fine sandpaper by impaired die surface sanding and polishing, and uses second
Alcohol carries out cleaning treatment to repair surface；Then die surface spot is dried with acetylene-oxygen flame；
(2) it is heat-treated: mold being heat-treated, is heated up to 200 DEG C or more, and keep the temperature half an hour or more；
(3) laser melting coating inner alloy powder is used；Laser cladding technological parameter are as follows: laser power 3-5kW, cladding speed
4-5mm/s is spent, pre-set thickness 1-1.5mm, protective gas is argon gas, and facular model is rectangular light spot, spot size 10mm ×
1mm, by the way of preset powder feeding；Powder sending quantity is 15-20g/min；
(4) laser melting coating middle layer alloy powder is used after temperature is cooled to 600-800 DEG C；Laser power is 2.5-
3.5kW, cladding speed 3-4mm/s, pre-set thickness 1-1.5mm, protective gas is argon gas, and facular model is rectangular light spot, light
Spot size 15mm × 1.5mm, by the way of preset powder feeding；Powder sending quantity is 12-15g/min；
(5) laser melting coating outer layer alloys powder is used after temperature is cooled to 300-500 DEG C；Laser power is 1.4-2kW,
Cladding speed 2-4mm/s, pre-set thickness 1-1.5mm, protective gas is argon gas, and facular model is rectangular light spot, spot size
15mm × 1.5mm, by the way of preset powder feeding；Powder sending quantity is 10-12g/min；
(6) it is cooled to room temperature, mold is cleaned using cleaning agent.
As a further solution of the present invention: the inner alloy powder is made of following raw material according to parts by weight, Fe:
25-35 parts, Co: 1-3 part, Ni:2-4 parts, Cr:10-15 parts, V:4-6 parts, Ti:4-8 parts.
As further scheme of the invention: the middle layer alloy powder is made of following raw material according to parts by weight, C:
1-3 parts, Cr:10-13 parts, Mo:10-12 parts, Mn:4-6 parts, W:5-8 parts, Fe:25-30 parts.
As further scheme of the invention: middle layer alloy powder described in the outer layer alloys powder is pressed by following raw material
It is formed according to parts by weight, C:2-4 parts, Cr:10-15 parts, Mo:10-12 parts, Co: 1-3 part, Fe:25-30 parts.
Compared with prior art, the beneficial effects of the present invention are:
The automobile die laser repairing process of this high rigidity is last using the cladding alloy of different ratio, in different lasing conditions
Under the multistage is carried out to the mold to be repaired, cladding in batches avoids conventional laser cladding due to the speed that heats and cool down
Degree is exceedingly fast, and the defect generated in cladding layer caused by temperature change is too big improves the hardness of cladding layer.
Specific embodiment
Technical solution of the present invention is described in more detail With reference to embodiment.
Embodiment 1
A kind of automobile die laser repairing process of high rigidity, key step are as follows:
(1) die surface is pre-processed, usually first using fine sandpaper by impaired die surface sanding and polishing, and uses second
Alcohol carries out cleaning treatment to repair surface；Then die surface spot is dried with acetylene-oxygen flame；
(2) it is heat-treated: mold being heat-treated, is heated up to 200 DEG C, and keep the temperature half an hour；
(3) laser melting coating inner alloy powder is used；Laser cladding technological parameter are as follows: laser power 3kW, cladding speed
4mm/s, pre-set thickness 1mm, protective gas are argon gas, and facular model is rectangular light spot, spot size 10mm × 1mm, using pre-
Set the mode of powder feeding；Powder sending quantity is 15g/min；
(4) laser melting coating middle layer alloy powder is used after temperature is cooled to 600 DEG C；Laser power is 2.5kW, cladding speed
3mm/s is spent, pre-set thickness 1mm, protective gas is argon gas, and facular model is rectangular light spot, spot size 15mm × 1.5mm,
By the way of preset powder feeding；Powder sending quantity is 12g/min；
(5) laser melting coating outer layer alloys powder is used after temperature is cooled to 300 DEG C；Laser power is 1.4kW, cladding speed
2mm/s is spent, pre-set thickness 1mm, protective gas is argon gas, and facular model is rectangular light spot, spot size 15mm × 1.5mm,
By the way of preset powder feeding；Powder sending quantity is 10g/min；
(6) it is cooled to room temperature, mold is cleaned using cleaning agent.
The inner alloy powder is made of following raw material according to parts by weight, and Fe:25 parts, Co: 1 part, Ni:2 parts, Cr:
10 parts, V:4 parts, Ti:4 parts；
The middle layer alloy powder is made of following raw material according to parts by weight, and C:1 parts, Cr:10 parts, Mo:10 parts, Mn:4
Part, W:5 parts, Fe:25 parts；
Middle layer alloy powder described in the outer layer alloys powder is made of following raw material according to parts by weight, and C:2 parts, Cr:10
Part, Mo:10 parts, Co: 1 part, Fe:25 parts；
The hardness average value on the automobile die surface after technique reparation is 60.3HRC, hardness number in all test points
The surface hardness of lowest part is 56.2HRC.
Embodiment 2
(1) die surface is pre-processed, usually first using fine sandpaper by impaired die surface sanding and polishing, and uses second
Alcohol carries out cleaning treatment to repair surface；Then die surface spot is dried with acetylene-oxygen flame；
(2) it is heat-treated: mold being heat-treated, is heated up to 220 DEG C 2, and keep the temperature 35min；
(3) laser melting coating inner alloy powder is used；Laser cladding technological parameter are as follows: laser power 4kW, cladding speed
4mm/s, pre-set thickness 1.2mm, protective gas are argon gas, and facular model is rectangular light spot, and spot size 10mm × 1mm is used
The mode of preset powder feeding；Powder sending quantity is 18g/min；
(4) laser melting coating middle layer alloy powder is used after temperature is cooled to 700 DEG C；Laser power is 3kW, cladding speed
3.5mm/s, pre-set thickness 1.4mm, protective gas are argon gas, and facular model is rectangular light spot, spot size 15mm ×
1.5mm, by the way of preset powder feeding；Powder sending quantity is 13g/min；
(5) laser melting coating outer layer alloys powder is used after temperature is cooled to 400 DEG C；Laser power is 1.5kW, cladding speed
3mm/s is spent, pre-set thickness 1.7mm, protective gas is argon gas, and facular model is rectangular light spot, spot size 15mm ×
1.5mm, by the way of preset powder feeding；Powder sending quantity is 11g/min；
(6) it is cooled to room temperature, mold is cleaned using cleaning agent.
The inner alloy powder is made of following raw material according to parts by weight, and Fe:30 parts, Co: 2 parts, Ni:3 parts, Cr:
13 parts, V:5 parts, Ti:7 parts；
The middle layer alloy powder is made of following raw material according to parts by weight, and C:2 parts, Cr:12 parts, Mo:11 parts, Mn:5
Part, W:7 parts, Fe:27 parts；
Middle layer alloy powder described in the outer layer alloys powder is made of following raw material according to parts by weight, and C:3 parts, Cr:12
Part, Mo:11 parts, Co: 2 parts, Fe:26 parts；
The hardness average value on the automobile die surface after technique reparation is 58.6HRC, hardness number in all test points
The surface hardness of lowest part is 56.7HRC.
Embodiment 3
(1) die surface is pre-processed, usually first using fine sandpaper by impaired die surface sanding and polishing, and uses second
Alcohol carries out cleaning treatment to repair surface；Then die surface spot is dried with acetylene-oxygen flame；
(2) it is heat-treated: mold being heat-treated, is heated up to 250 DEG C, and keep the temperature 40min；
(3) laser melting coating inner alloy powder is used；Laser cladding technological parameter are as follows: laser power 5kW, cladding speed
5mm/s, pre-set thickness 1.5mm, protective gas are argon gas, and facular model is rectangular light spot, and spot size 10mm × 1mm is used
The mode of preset powder feeding；Powder sending quantity is 20g/min；
(4) laser melting coating middle layer alloy powder is used after temperature is cooled to 800 DEG C；Laser power is 3.5kW, cladding speed
4mm/s is spent, pre-set thickness 1.5mm, protective gas is argon gas, and facular model is rectangular light spot, spot size 15mm ×
1.5mm, by the way of preset powder feeding；Powder sending quantity is 15g/min；
(5) laser melting coating outer layer alloys powder is used after temperature is cooled to 500 DEG C；Laser power is 2kW, cladding speed
4mm/s, pre-set thickness 1.5mm, protective gas are argon gas, and facular model is rectangular light spot, spot size 15mm × 1.5mm,
By the way of preset powder feeding；Powder sending quantity is 12g/min；
(6) it is cooled to room temperature, mold is cleaned using cleaning agent.
The inner alloy powder is made of following raw material according to parts by weight, and Fe:35 parts, Co: 3 parts, Ni:4 parts, Cr:
15 parts, V:6 parts, Ti:8 parts；
The middle layer alloy powder is made of following raw material according to parts by weight, and C:3 parts, Cr:13 parts, Mo:12 parts, Mn:6
Part, W:8 parts, Fe:30 parts；
Middle layer alloy powder described in the outer layer alloys powder is made of following raw material according to parts by weight, and C:4 parts, Cr:15
Part, Mo:12 parts, Co: 3 parts, Fe:30 parts；
The hardness average value on the automobile die surface after technique reparation is 59.8HRC, hardness number in all test points
The surface hardness of lowest part is 55.8HRC.
The automobile die laser repairing process of this high rigidity is last using the cladding alloy of different ratio, in different lasing conditions
Under the multistage is carried out to the mold to be repaired, cladding in batches avoids conventional laser cladding due to the speed that heats and cool down
Degree is exceedingly fast, and the defect generated in cladding layer caused by temperature change is too big improves the hardness of cladding layer.
Better embodiment of the invention is explained in detail above, but the present invention is not limited to above-mentioned embodiment party
Formula within the knowledge of one of ordinary skill in the art can also be without departing from the purpose of the present invention
Various changes can be made.
Claims (1)
1. a kind of automobile die laser repairing process of high rigidity, specifically use laminar smelting and coating renovation technique, be divided into, in, it is outer
Three layers, which is characterized in that the inner alloy powder is made of following raw material according to parts by weight, and Fe:25-35 parts, Co: 1-3
Part, Ni:2-4 parts, Cr:10-15 parts, V:4-6 parts, Ti:4-8 parts；The middle layer alloy powder is by following raw material according to parts by weight
Composition, C:1-3 parts, Cr:10-13 parts, Mo:10-12 parts, Mn:4-6 parts, W:5-8 parts, Fe:25-30 parts；The outer layer alloys powder
The end middle layer alloy powder is made of following raw material according to parts by weight, and C:2-4 parts, Cr:10-15 parts, Mo:10-12 parts, Co:
1-3 parts, Fe:25-30 parts；Its key step is as follows:
(1) die surface is pre-processed, die surface sanding and polishing that usually first will be impaired using fine sandpaper, and with ethyl alcohol pair
Repair surface carries out cleaning treatment；Then die surface spot is dried with acetylene-oxygen flame；
(2) it is heat-treated: mold being heat-treated, is heated up to 200 DEG C or more, and keep the temperature half an hour or more；
(3) laser melting coating inner alloy powder is used；Laser cladding technological parameter are as follows: laser power 3-5kW, cladding speed 4-
5mm/s, pre-set thickness 1-1.5mm, protective gas are argon gas, and facular model is rectangular light spot, and spot size 10mm × 1mm is adopted
With the mode of preset powder feeding；Powder sending quantity is 15-20g/min；
(4) laser melting coating middle layer alloy powder is used after temperature is cooled to 600-800 DEG C；Laser power is 2.5-3.5kW, is melted
Speed 3-4mm/s, pre-set thickness 1-1.5mm are covered, protective gas is argon gas, and facular model is rectangular light spot, spot size
15mm × 1.5mm, by the way of preset powder feeding；Powder sending quantity is 12-15g/min；
(5) laser melting coating outer layer alloys powder is used after temperature is cooled to 300-500 DEG C；Laser power is 1.4-2kW, cladding
Speed 2-4mm/s, pre-set thickness 1-1.5mm, protective gas are argon gas, and facular model is rectangular light spot, spot size 15mm
× 1.5mm, by the way of preset powder feeding；Powder sending quantity is 10-12g/min；
(6) it is cooled to room temperature, mold is cleaned using cleaning agent.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611050174.4A CN106591827B (en) | 2016-11-24 | 2016-11-24 | A kind of automobile die laser repairing process of high rigidity |
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| CN201611050174.4A CN106591827B (en) | 2016-11-24 | 2016-11-24 | A kind of automobile die laser repairing process of high rigidity |
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| CN106591827B true CN106591827B (en) | 2019-04-09 |
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| CN107805809A (en) * | 2017-11-21 | 2018-03-16 | 江苏雨燕模业科技有限公司 | A kind of automobile die surface coating renovation technique |
| CN110405407A (en) * | 2019-08-13 | 2019-11-05 | 黄山学院 | A kind of novel restorative procedure of mold and device |
| CN113960162B (en) * | 2021-09-26 | 2024-01-09 | 南京钢铁股份有限公司 | Inspection method for laser cladding repair layer on roller surface |
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| CN101974751A (en) * | 2010-07-06 | 2011-02-16 | 山东建能大族激光再制造技术有限公司 | Method for repairing speed reduction gearbox hole |
| CN102021568A (en) * | 2010-07-06 | 2011-04-20 | 山东建能大族激光再制造技术有限公司 | Method for laser hardening gear part |
| CN102031516A (en) * | 2010-12-21 | 2011-04-27 | 上海工程技术大学 | Method for preparing Ni-based nano WC/Co composite coating with gradient function |
| CN102732831A (en) * | 2012-07-18 | 2012-10-17 | 丹阳宏图激光科技有限公司 | Laser repairing process for automobile mold |
| CN105420724A (en) * | 2015-12-17 | 2016-03-23 | 辽宁工业大学 | Iron-base alloy gradient cladding layer and preparation method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104588963B (en) * | 2015-01-23 | 2017-02-01 | 武汉开明高新科技有限公司 | Break repair technology for universal connecting rod of universal coupling |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101974751A (en) * | 2010-07-06 | 2011-02-16 | 山东建能大族激光再制造技术有限公司 | Method for repairing speed reduction gearbox hole |
| CN102021568A (en) * | 2010-07-06 | 2011-04-20 | 山东建能大族激光再制造技术有限公司 | Method for laser hardening gear part |
| CN102031516A (en) * | 2010-12-21 | 2011-04-27 | 上海工程技术大学 | Method for preparing Ni-based nano WC/Co composite coating with gradient function |
| CN102732831A (en) * | 2012-07-18 | 2012-10-17 | 丹阳宏图激光科技有限公司 | Laser repairing process for automobile mold |
| CN105420724A (en) * | 2015-12-17 | 2016-03-23 | 辽宁工业大学 | Iron-base alloy gradient cladding layer and preparation method thereof |
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Address after: 224056 Yalong street, Yimu District, Yancheng City, Jiangsu Patentee after: Jiangsu Swan mould industry Polytron Technologies Inc Address before: 224056 Yalong street, Yimu District, Yancheng City, Jiangsu Patentee before: Jiangsu swift Mo Ye Science and Technology Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190409 Termination date: 20201124 |