CN105088222A - Laser cladding repairing method for mould surface - Google Patents
Laser cladding repairing method for mould surface Download PDFInfo
- Publication number
- CN105088222A CN105088222A CN201510508972.6A CN201510508972A CN105088222A CN 105088222 A CN105088222 A CN 105088222A CN 201510508972 A CN201510508972 A CN 201510508972A CN 105088222 A CN105088222 A CN 105088222A
- Authority
- CN
- China
- Prior art keywords
- overlay cladding
- laser
- bending die
- mould
- layer
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/02—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
- B23K35/0222—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in soldering, brazing
- B23K35/0244—Powders, particles or spheres; Preforms made therefrom
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
- B23K35/3053—Fe as the principal constituent
- B23K35/3073—Fe as the principal constituent with Mn as next major constituent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
- B23K35/3053—Fe as the principal constituent
- B23K35/308—Fe as the principal constituent with Cr as next major constituent
- B23K35/3086—Fe as the principal constituent with Cr as next major constituent containing Ni or Mn
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
- Mounting, Exchange, And Manufacturing Of Dies (AREA)
Abstract
The invention relates to a laser cladding repairing method for a mould surface. The method comprises the following steps: processing, detecting and analyzing the surface of a bending mould to be repaired, and removing a fatigue layer of an abrading part; surfacing the abrading part to form a first surfacing layer, and then surfacing the first surfacing layer to form a second surfacing layer, wherein the thickness of the first surfacing layer is 2mm-3mm, and the thickness of the second surfacing layer is 2mm-3mm; the surfacing adopts a preset powder feeding way, and a fast-transverse-flow CO2 laser as a light source is used for continuously overlapping and scanning the mould. The laser repairing method for the bending mould carries out laser cladding for the surface of the bending mould, so that the surface hardness and the size of the abrading part of the bending mould can achieve the using requirements.
Description
Technical field
The present invention relates to a kind of laser cladding method, especially a kind of laser melting coating restorative procedure of die surface.
Background technology
Punching press is at room temperature, utilizes the press tool be arranged on pressing machine to apply pressure to material, makes it produce separation or viscous deformation, thus obtains a kind of pressure processing method of required part.Press tool is requisite tooling in punching production, is technological-intensive product.The quality of stamping parts, production efficiency and production cost etc., have direct relation with die design and manufacture.Press tool is divided into blanking die, piercing die, bending die, Drawing Die, flaring die etc. according to technological property, these press tools are are all inevitably worn and torn in the course of the work, but because each mould role is different, stressing conditions during punching press is different, and the degree of wear in working process and wearing character are also different.Carry out die surface reparation by common overlaying method, the shortcomings such as deflection is large, hardness is not enough, easy to crack can be brought.And different moulds should select more suitable renovation technique according to its characteristic, otherwise the mold use life-span cannot be protected, and can have a strong impact on mold use precision, cause produced quality product to decline.
Laser melting coating refers to and is made it to melt with matrix surface skim through laser irradiation by coated material cladding matrix surface placed by selecting with different adding material modes simultaneously, and it is extremely low to form extent of dilution after rapid solidification, the top coat of metallurgical binding is become with matrix, the remarkable processing method improving the wear-resisting, anti-corrosion, heat-resisting, anti-oxidant of substrate surface and electrical specification, thus reach the object of surface modification or reparation.With built-up welding, spraying, plating and gas phase sediment-filled phase ratio, laser melting coating has that extent of dilution is little, dense structure, coating and matrix is combined, be applicable to that cladding material is many, granularity and the feature such as content is large.How laser melting and coating technique being effectively applied to the reparation of bending die, is the problem that those skilled in the art needs to solve.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of surface to bending die and carries out laser melting coating, makes the size of its surface hardness and abrading section reach the laser repair method of the bending die of service requirements.
In order to solve the problems of the technologies described above, the invention provides a kind of laser repair method of bending die, comprise following concrete steps:
The first step, the surface of bending die to be repaired to be processed;
Second step, carry out detection analyze, determine abrading section and abrasion loss thereof;
The fatigue layer of the 3rd step, removal abrading section;
4th step, detection analytical results according to bending die, programme to the die cavity of abrading section, formulates processing parameter;
5th step, built-up welding is carried out to abrading section form the first overlay cladding, then at the first layer overlay cladding enterprising windrow weldering formation second overlay cladding, the thickness of described first overlay cladding is 2mm to 3mm, the thickness of described second overlay cladding is 2mm to 3mm, in weld deposit process, constantly evenly knock mould alloy cladding layer; Built-up welding adopts the mode of preset powder feeding, is that light source carries out lap connection scanning to mould with fast-transverse-flow CO2 laser., laser power is 1200W to 1400W, and spot size is 12mm × 1.8mm, laser apparatus is 255mm to 265mm from the distance between Substrate, and sweep velocity is 110mm/min to 130mm/min, and amount of lap is 4.5mm, powder sending quantity is 12g/min to 15g/min, the component of the powdered alloy that the first overlay cladding adopts and weight percent content are C≤0.1%, Cr:15% to 19%, B:1.5% to 2.5%, Si:1% to 2%, Mo:0.8% to 1%, Mn:2% to 5%, all the other are Fe; The component of the powdered alloy that the second overlay cladding adopts and weight percent content are C≤0.1%, Cr:10% to 13%, B:1.5% to 2.5%, Si:1% to 2%, Mo:0.8% to 1%, Mn:10% to 12%, W:2% to 4%, V:2% to 6%, TiO2:5% to 10%, all the other are Fe;
6th step, detection surface hardness and deflection, carry out mechanical workout, permeation flaw detection to the bending die after repairing.
The mass percentage content of the Mn in the powdered alloy that above-mentioned second overlay cladding adopts is 10.5% to 11.8%.
The mass percentage content of the W in the powdered alloy that above-mentioned second overlay cladding adopts is 2.8% to 3.5%.
The mass percentage content of the V in the powdered alloy that above-mentioned second overlay cladding adopts is 4.2% to 5.8%.
The mass percentage content of the TiO2 in the powdered alloy that above-mentioned second overlay cladding adopts is 6.3% to 8.7%.
The beneficial effect that the present invention brings is: the laser repair method of bending die of the present invention is lower according to the wearing character of bending die first built-up welding one deck hardness, wear resistance generally organizes the first overlay cladding that is comparatively fine and close, good uniformity, higher, good second overlay cladding of wear resistance of built-up welding one deck hardness on the first overlay cladding again, during the second overlay cladding built-up welding, the first overlay cladding does not still cool, and both all have selected suitable powdered alloy and carry out built-up welding, wettability between two overlay claddings is good, in conjunction with tightr.The content of the strict control C of the powdered alloy of the second overlay cladding, be conducive to the wettability improving cladding layer, prevent from cracking in cladding process and pore, adding appropriate B, Si makes alloy form matrix based on austenite after solidification, utilize appropriate Cr, Mn, W, Mo, V, TiO2 to carry out alloy strengthening to ferrous alloy, even if C content is lower, the hardness of cladding layer also can reach more than 55.5HRC, fully meet the hardness requirement that mould uses, and there is very high wear resistance.Adopt the mode of preset powder feeding in addition, strictly control powder sending quantity, and laser power, sweep velocity, amount of lap etc. are optimized, such that the homogeneity of structure of cladding layer is good, thickness and hardness even.The method did not need to carry out preheating to mould before built-up welding, without the need to annealing to mould after built-up welding, effectively can control the distortion of mould, and heat can be avoided to concentrate generation thermal stresses by carrying out laser melting coating in an orderly manner everywhere, be conducive to reducing distortion further, improve hardness and the wear resistance of mould.
Embodiment
Embodiment 1
The concrete steps of the laser repair method of the bending die of the present embodiment are as follows:
The first step, the surface of bending die to be repaired to be processed, by removings such as the dust on bending die, greasy dirt, corrosions.
Second step, carry out detection and analyze, original working conditions, hardness and the mechanical property parameters of record bending die, detects the size at each position of bending die, determines abrading section and abrasion loss thereof.
3rd step, remove the right angle of abrading section by polishing, remove the fatigue layer of abrading section, and clean.4th step, detection analytical results according to bending die, programme (numerical control machining simulation system that programming can use Mitsubishi) to the die cavity of abrading section, formulate processing parameter.
5th step, built-up welding is carried out to abrading section form the first overlay cladding, then at the first layer overlay cladding enterprising windrow weldering formation second overlay cladding, the thickness of described first overlay cladding is 3mm, the thickness of described second overlay cladding is 3mm, in weld deposit process, constantly evenly knock mould alloy cladding layer with mallet.Built-up welding adopts the mode of preset powder feeding, is that light source carries out lap connection scanning to mould with fast-transverse-flow CO2 laser.Laser power is 1400W, and spot size is 12mm × 1.8mm, and laser apparatus is 265mm from the distance between Substrate, and sweep velocity is 120mm/min, and amount of lap is 4.5mm, and powder sending quantity is 12g/min.The component of the powdered alloy that the first overlay cladding adopts and weight percent content are C:0.07%, Cr:15.4%, B:2.2%, Si:1.4%, Mo:0.8%, Mn:2.5%, and all the other are Fe.The component of the powdered alloy that the second overlay cladding adopts and weight percent content are C:0.08%, Cr:10.2%, B:2%, Si:1.5%, Mo:1%, Mn:10.5%, V:4.6%, W:3.1%, TiO2:8.2%, and all the other are Fe.
6th step, detection surface hardness and deflection, carry out mechanical workout, permeation flaw detection to the bending die after repairing.
Mean value through the surface hardness of the bending die of the laser repair method reparation of the bending die of the present embodiment reaches 57.2HRC, and the hardness Schwellenwert in all check points is 56.3HRC.
Embodiment 2
The rest part of the laser repair method of the bending die of the present embodiment is identical with embodiment 1, difference is: laser power is 1200W, spot size is 12mm × 1.8mm, laser apparatus is 255mm from the distance between Substrate, sweep velocity is 110mm/min, amount of lap is 4.5mm, and powder sending quantity is 13g/min.The component of the powdered alloy that the first overlay cladding adopts and weight percent content are C:0.09%, Cr:17.5%, B:1.7%, Si:1.1%, Mo:0.9%, Mn:3.4%, and all the other are Fe.The component of the powdered alloy that the second overlay cladding adopts and weight percent content are C:0.06%, Cr:12.6%, B:1.8%, Si:1.2%, Mo:0.9%, Mn:11.7%, V:5.2%, W:3.4%, TiO2:7.6%, and all the other are Fe.Mean value through the surface hardness of the bending die of the laser repair method reparation of the bending die of the present embodiment reaches 57.5HRC, and the hardness Schwellenwert in all check points is 56.8HRC.
Embodiment 3
The rest part of the laser repair method of the bending die of the present embodiment is identical with embodiment 1, and difference is:
Laser power is 1300W, and spot size is 12mm × 1.8mm, and laser apparatus is 260mm from the distance between Substrate, and sweep velocity is 130mm/min, and amount of lap is 4.5mm, and powder sending quantity is 15g/min.The component of the powdered alloy that the first overlay cladding adopts and weight percent content are C:0.05%, Cr:16.5%, B:2%, Si:1.3%, Mo:0.8%, Mn:3.6%, and all the other are Fe.The component of the powdered alloy that the second overlay cladding adopts and weight percent content are C:0.09%, Cr:11.3%, B:2.3%, Si:1.7%, Mo:0.8%, Mn:10.8%, V:4.9%, W:2.8%, TiO2:6.6%, and all the other are Fe.
Mean value through the surface hardness of the bending die of the laser repair method reparation of the bending die of the present embodiment reaches 57.3HRC, and the hardness Schwellenwert in all check points is 56.1HRC.
Obviously, above-described embodiment is only for example of the present invention is clearly described, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.And these belong to spirit institute's apparent change of extending out of the present invention or change and are still among protection scope of the present invention.
Claims (1)
1. a laser repair method for bending die, comprises following concrete steps:
The first step, the surface of bending die to be repaired to be processed;
Second step, carry out detection analyze, determine abrading section and abrasion loss thereof;
The fatigue layer of the 3rd step, removal abrading section;
4th step, detection analytical results according to bending die, programme to the die cavity of abrading section, formulates processing parameter;
5th step, built-up welding is carried out to abrading section form the first overlay cladding, then at the first layer overlay cladding enterprising windrow weldering formation second overlay cladding, the thickness of described first overlay cladding is 3mm, and the thickness of described second overlay cladding is 3mm, in weld deposit process, constantly evenly knock mould alloy cladding layer; Built-up welding adopts the mode of preset powder feeding, be that light source carries out lap connection scanning to mould with fast-transverse-flow CO2 laser, laser power is 1200W, spot size is 12mm × 1.8mm, laser apparatus is 255mm from the distance between Substrate, sweep velocity is 110mm/min, amount of lap is 4.5mm, and powder sending quantity is 13g/min, and the component of the powdered alloy that the first overlay cladding adopts and weight percent content are C:0.09%, Cr:17.5%, B:1.7%, Si:1.1%, Mo:0.9%, Mn:3.4%, all the other are Fe; The component of the powdered alloy that the second overlay cladding adopts and weight percent content are C≤0.1%, Cr:10% to 13%, B:1.5% to 2.5%, Si:1% to 2%, Mo:0.8% to 1%, Mn:10% to 12%, W:2% to 4%, V:2% to 6%, TiO2:5% to 10%, all the other are Fe;
6th step, detection surface hardness and deflection, carry out mechanical workout, permeation flaw detection to the bending die after repairing.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310267079.XA CN103305842B (en) | 2013-06-29 | 2013-06-29 | The laser repair method of bending die |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310267079.XA Division CN103305842B (en) | 2013-06-29 | 2013-06-29 | The laser repair method of bending die |
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|---|---|
| CN105088222A true CN105088222A (en) | 2015-11-25 |
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Family Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310267079.XA Expired - Fee Related CN103305842B (en) | 2013-06-29 | 2013-06-29 | The laser repair method of bending die |
| CN201510508973.0A Withdrawn CN105088223A (en) | 2013-06-29 | 2013-06-29 | Laser repair method of bending die |
| CN201510508955.2A Pending CN105081575A (en) | 2013-06-29 | 2013-06-29 | Laser repairing method for surface of die |
| CN201510508972.6A Withdrawn CN105088222A (en) | 2013-06-29 | 2013-06-29 | Laser cladding repairing method for mould surface |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310267079.XA Expired - Fee Related CN103305842B (en) | 2013-06-29 | 2013-06-29 | The laser repair method of bending die |
| CN201510508973.0A Withdrawn CN105088223A (en) | 2013-06-29 | 2013-06-29 | Laser repair method of bending die |
| CN201510508955.2A Pending CN105081575A (en) | 2013-06-29 | 2013-06-29 | Laser repairing method for surface of die |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106757006A (en) * | 2016-12-29 | 2017-05-31 | 中航沈飞民用飞机有限责任公司 | New-type antiskid band repair method |
| CN109554704A (en) * | 2018-12-24 | 2019-04-02 | 广东省新材料研究所 | A method of remanufacturing cable forming mold |
| CN109773368A (en) * | 2017-11-14 | 2019-05-21 | 大同特殊钢株式会社 | Mold repairing welding material |
| CN111230400A (en) * | 2020-01-15 | 2020-06-05 | 上海岳乾激光科技有限公司 | Repairing, reinforcing and remanufacturing method for steel breakout and breakout parts of cold-work die |
| CN111455140A (en) * | 2020-04-10 | 2020-07-28 | 西安灯芯草信息科技有限公司 | Die repairing and reinforcing method |
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| WO2018225803A1 (en) * | 2017-06-07 | 2018-12-13 | 住友電工焼結合金株式会社 | Mold component manufacturing method and mold component |
| CN108637586B (en) * | 2018-05-14 | 2020-09-22 | 合肥东方节能科技股份有限公司 | Guide surface repairing method |
| CN109262141B (en) * | 2018-09-30 | 2023-04-21 | 浙江艾彼科技股份有限公司 | Laser welding, stacking and forming processing method for automobile front bumper injection mold |
| CN110802230A (en) * | 2019-11-05 | 2020-02-18 | 上海欣冈贸易有限公司 | Bridging welding method |
| US11685005B2 (en) | 2021-02-26 | 2023-06-27 | Honda Motor Co., Ltd. | Systems and methods of repairing a stamping die |
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| CN101974748B (en) * | 2010-07-06 | 2011-11-09 | 山东能源机械集团大族再制造有限公司 | Method for laser-strengthening shaft parts |
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2013
- 2013-06-29 CN CN201310267079.XA patent/CN103305842B/en not_active Expired - Fee Related
- 2013-06-29 CN CN201510508973.0A patent/CN105088223A/en not_active Withdrawn
- 2013-06-29 CN CN201510508955.2A patent/CN105081575A/en active Pending
- 2013-06-29 CN CN201510508972.6A patent/CN105088222A/en not_active Withdrawn
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| CN1037475A (en) * | 1988-05-05 | 1989-11-29 | 西屋电气公司 | Controlled built-up welding reparation with improved turbine system and low-alloy steel steam-turbine parts of failure resistant rotors |
| CN101249510A (en) * | 2008-03-27 | 2008-08-27 | 安徽工业大学 | Repaired roller and method for repairing roller |
| 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 |
| US20130049438A1 (en) * | 2011-08-27 | 2013-02-28 | Braun Gmbh | Method For Providing An Abrasion Resistant Cutting Edge And Trimming Device Having Said Cutting Edge |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106757006A (en) * | 2016-12-29 | 2017-05-31 | 中航沈飞民用飞机有限责任公司 | New-type antiskid band repair method |
| CN109773368A (en) * | 2017-11-14 | 2019-05-21 | 大同特殊钢株式会社 | Mold repairing welding material |
| CN109773368B (en) * | 2017-11-14 | 2021-03-26 | 大同特殊钢株式会社 | Repair welding material for mold |
| CN109554704A (en) * | 2018-12-24 | 2019-04-02 | 广东省新材料研究所 | A method of remanufacturing cable forming mold |
| CN111230400A (en) * | 2020-01-15 | 2020-06-05 | 上海岳乾激光科技有限公司 | Repairing, reinforcing and remanufacturing method for steel breakout and breakout parts of cold-work die |
| CN111455140A (en) * | 2020-04-10 | 2020-07-28 | 西安灯芯草信息科技有限公司 | Die repairing and reinforcing method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105081575A (en) | 2015-11-25 |
| CN105088223A (en) | 2015-11-25 |
| CN103305842B (en) | 2015-08-19 |
| CN103305842A (en) | 2013-09-18 |
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Application publication date: 20151125 |
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