CN113832462A - Laser cladding composite deburring roller and preparation method thereof - Google Patents
Laser cladding composite deburring roller and preparation method thereof Download PDFInfo
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- CN113832462A CN113832462A CN202111123956.7A CN202111123956A CN113832462A CN 113832462 A CN113832462 A CN 113832462A CN 202111123956 A CN202111123956 A CN 202111123956A CN 113832462 A CN113832462 A CN 113832462A
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- laser cladding
- deburring roller
- laser
- composite
- deburring
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
- B21B27/02—Shape or construction of rolls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- 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
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- 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
- C22C38/24—Ferrous alloys, e.g. steel alloys containing chromium 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
- C22C38/26—Ferrous alloys, e.g. steel alloys containing chromium with niobium or tantalum
-
- 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
- C22C38/36—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.7% by weight of carbon
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention belongs to the field of metallurgical cold rolling, and particularly relates to a laser cladding composite deburring roller and a preparation method thereof; the composite deburring roller comprises a substrate and a laser cladding layer, wherein the laser cladding layer comprises the following components in percentage by mass: c: 1.5% -2.2%, Si: 0.5-1.0%, Cr: 4.5% -5%, V: 5% -6%, Nb: 0.3 to 0.5 percent of Fe, and the balance of Fe; welding the base material into a deburring roller base body, then performing rough machining and preheating in sequence, coating cladding alloy powder on the surface of the preheated deburring base body, forming a laser cladding layer through laser cladding, and cooling and turning to obtain the laser cladding composite deburring roller. The composite deburring roller obtained by combining the material components of the composite deburring roller with a simple preparation method has high surface hardness and strong wear resistance, prolongs the service life of the deburring roller, reduces the production cost and improves the economic benefit.
Description
Technical Field
The invention belongs to the field of metallurgical cold rolling, and particularly relates to a laser cladding composite deburring roller and a preparation method thereof.
Background
The burrs are defects of cold-rolled strip steel products, and if the burrs generated in the edge cutting process of the cold-rolled sheet cannot be effectively removed, the defects of scratches, roll marks, pits, groove marks and the like are generated on the surface of the strip steel, so that the normal use is influenced. In the cold-rolled thin steel strip, the quality requirement of the cold-rolled steel strip is high, the length of burrs generated on the edge part of the cold-rolled thin steel strip is required to be not more than 1/10 of the plate thickness, and the burrs are generally treated by using a deburring roller to reduce the burrs on the edge part of the cold-rolled plate. The traditional deburring roller is usually used after being subjected to surface quenching treatment by bearing steel Gr15, and the deburring roller has the defects of general wear resistance, high repair difficulty after failure and the like.
Disclosure of Invention
Aiming at the technical problems, the invention provides the laser cladding composite deburring roller and the preparation method thereof.
In order to achieve the purpose of the invention, the embodiment of the invention adopts the following technical scheme:
the laser cladding composite deburring roller comprises a base body and a laser cladding layer, wherein the laser cladding layer comprises the following components in percentage by mass: c: 1.5% -2.2%, Si: 0.5-1.0%, Cr: 4.5% -5%, V: 5% -6%, Nb: 0.3 to 0.5 percent of the total weight of the alloy, and the balance of Fe.
Compared with the prior art, the laser cladding composite deburring roller provided by the invention has the following advantages:
by controlling the components of the laser cladding layer and the content range of each component, the obtained laser cladding layer has excellent abrasion-resistant and scratch-resistant effects, and can realize rapid cooling after cladding, and the prepared cladding layer has fine grains and uniform components, so that the service performance can be greatly improved.
Preferably, the base material is medium carbon steel, medium carbon alloy steel, high carbon steel or high carbon alloy steel.
Preferably, the base material is 45# steel, 42CrMo or 40 Cr.
The preferable steel grade endows the substrate with higher strength and good cladding performance, greatly reduces the cost of the substrate material and improves the economic benefit.
Preferably, the thickness of the laser cladding layer is 1-1.5 mm.
When the thickness exceeds 1.5mm, the risk of cladding cracking is increased, and the optimal thickness of the laser cladding layer can ensure the cladding effect and the service life of the composite deburring roller.
The invention also provides a preparation method of the laser cladding composite deburring roller, which comprises the steps of welding the base material into a deburring roller base body, then carrying out rough machining and preheating in sequence, coating cladding alloy powder on the surface of the preheated deburring roller base body, forming a laser cladding layer through laser cladding, cooling and turning to obtain the laser cladding composite deburring roller.
The hardness of the traditional deburring roller is gradually reduced from outside to inside, the roller is continuously worn in the using process, the surface hardness is gradually reduced, the deburring performance is gradually poor, and some hard burrs scratch the surface of the roller and cannot be removed; the cladding layer of the laser cladding composite deburring roller obtained by the preparation method has consistent hardness, the deburring performance of the whole cladding layer cannot be reduced even if the surface is abraded, the long-time efficient deburring is ensured, and meanwhile, the preparation method is convenient for repairing the cladding layer.
The composite deburring roller obtained by combining the laser cladding layer material components of the composite deburring roller with a simple preparation method has high surface hardness and strong wear resistance, and the service life of the deburring roller is prolonged. When the above preferred base material 45# steel, 42CrMo or 40Cr is used, the production cost can be reduced and the economic efficiency can be improved.
Preferably, after rough machining, the surface roughness of the base body of the deburring roller is Ra 6.2-6.4 μm.
The preferable surface roughness is beneficial to coating the cladding alloy powder, and the cladding effect is good.
Preferably, the preheating is carried out to 150-200 ℃.
Preferably, the coated device uses a 6KW LaserLine fiber coupled semiconductor laser.
Preferably, the process parameters of the coating include: the laser power is 5-5.5 KW, the scanning speed is 450-520 mm/min, the diameter of a light spot is 19x3.7mm, the lap joint amount is 8-12 mm, the powder feeding speed is 80-85 g/min, and the defocusing amount is 20-30 mm.
The preferable cladding alloy powder components and cladding layer thickness are combined with the cladding process, so that the prepared composite deburring roller has excellent wear-resisting and scratch-resisting performances for a long time.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1:
the laser cladding composite deburring roller comprises a base body and a laser cladding layer, wherein the base body is a 45# seamless steel pipe, and the laser cladding layer comprises the following components in percentage by mass: c: 1.5%, Si: 0.5%, Cr: 4.5%, V: 5%, Nb: 0.3 percent and the balance of Fe.
The preparation method of the laser cladding composite deburring roller comprises the following steps:
the base material is assembled and welded into a deburring roller base body, rough machining is carried out, the base body is preheated to 150 ℃, cladding alloy powder with the components is coated on the surface of the preheated deburring base body by adopting a 6KW laser line optical fiber coupling semiconductor laser, a laser cladding layer is formed through laser cladding, the base body is cooled to 50 ℃, and the laser cladding composite deburring roller is obtained after turning;
wherein, the surface roughness of the base body of the deburring roller is required to be Ra 6.3 mu m after rough machining; the coating thickness of the cladding alloy powder is 1.5mm, the processing amount of turning is 0.5mm, and the thickness of the obtained laser cladding layer is 1 mm.
The deburring roller obtained in this example was crack-free and had a hardness of HRC 58-62.
Example 2:
the laser cladding composite deburring roller comprises a base body and a laser cladding layer, wherein the base body is made of 42CrMo seamless steel pipe, and the laser cladding layer comprises the following components in percentage by mass: c: 2.0%, Si: 0.8%, Cr: 4.6%, V: 5.5%, Nb: 0.4 percent and the balance of Fe.
The preparation method of the laser cladding composite deburring roller comprises the following steps:
welding the substrate material into a deburring roller substrate in a resistance welding manner, performing rough machining, preheating to 200 ℃, coating cladding alloy powder with the components on the surface of the preheated deburring substrate by adopting a 6KW laser line optical fiber coupling semiconductor laser, forming a laser cladding layer through laser cladding, cooling to 50 ℃, and turning to obtain the laser cladding composite deburring roller;
wherein, the surface roughness of the base body of the deburring roller is required to be Ra 6.4 mu m after rough machining; the coating thickness of the cladding alloy powder is 2mm, the processing amount of turning is 0.5mm, and the thickness of the obtained laser cladding layer is 1.5 mm.
The deburring roller obtained in this example was crack-free and had a hardness of HRC 58-62.
Example 3:
the laser cladding composite deburring roller comprises a base body and a laser cladding layer, wherein the base body is made of 40Cr seamless steel pipe, and the laser cladding layer comprises the following components in percentage by mass: c: 2.2%, Si: 1.0%, Cr: 5%, V: 6%, Nb: 0.5 percent and the balance of Fe.
The preparation method of the laser cladding composite deburring roller comprises the following steps:
welding the substrate material into a deburring roller substrate in a resistance welding manner, performing rough machining, preheating to 150 ℃, coating cladding alloy powder with the components on the surface of the preheated deburring substrate by adopting a 6KW laser line optical fiber coupling semiconductor laser, forming a laser cladding layer through laser cladding, cooling to 50 ℃, and turning to obtain the laser cladding composite deburring roller;
wherein, the surface roughness of the base body of the deburring roller is required to be Ra 6.2 mu m after rough machining; the coating thickness of the cladding alloy powder is 1.7mm, the processing amount of turning is 0.5mm, and the thickness of the obtained laser cladding layer is 1.2 mm.
The deburring roller obtained in this example was crack-free and had a hardness of HRC 58-62.
In order to better illustrate the characteristics of the laser cladding composite deburring roller provided by the embodiment of the invention, a deburring test is carried out on the composite deburring roller prepared in the embodiment 1-3 and a traditional GCr15 deburring roller, the deburring rate of the steel length less than 2000km is 1, the deburring rate of the steel length 2000 km-3500 km is 2, the deburring rate of the steel length 3500 km-6000 km is 3, the deburring rate of the steel length more than 6000km is 4, and the detection results are shown in Table 1. Further, when the deburring rate is less than 70%, the deburring roller cannot be used and is regarded as failed.
TABLE 1
As can be seen from table 1, the deburring rate of the conventional GCr15 deburring roll is gradually reduced along with the increase of the length of steel, the deburring rate is reduced to 80% when the length of steel reaches 2000km and is reduced to 80% when the length of steel is greater than 3500km, and the deburring rate is basically failed, while the deburring rate provided by the embodiment of the invention is not greater than 6000km, the deburring rate can reach more than 95%, and the deburring rate is kept unchanged.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents or improvements made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (9)
1. The laser cladding composite deburring roller is characterized by comprising a base body and a laser cladding layer, wherein the laser cladding layer comprises the following components in percentage by mass: c: 1.5% -2.2%, Si: 0.5-1.0%, Cr: 4.5% -5%, V: 5% -6%, Nb: 0.3 to 0.5 percent of the total weight of the alloy, and the balance of Fe.
2. The laser clad composite deburring roller of claim 1 wherein said base material is medium carbon steel, medium carbon alloy steel, high carbon steel or high carbon alloy steel.
3. The laser-clad composite deburring roller of claim 2, wherein said matrix material is 45# steel, 42CrMo or 40 Cr.
4. The laser-clad composite deburring roller of claim 1, wherein the thickness of the laser cladding layer is 1 to 1.5 mm.
5. The method for preparing the laser cladding composite deburring roller as claimed in any one of claims 1 to 4, characterized in that the base material is resistance welded into a deburring roller base body, rough machining and preheating are sequentially performed, cladding alloy powder is coated on the surface of the preheated deburring base body, a laser cladding layer is formed through laser cladding, and the laser cladding composite deburring roller is obtained after cooling and turning.
6. The preparation process of the laser cladding composite deburring roller as claimed in claim 5, wherein after rough machining, the surface roughness of the deburring roller base body is Ra 6.2-6.4 μm.
7. The preparation process of the laser cladding composite deburring roller as claimed in claim 5, wherein the preheating is carried out to 150-200 ℃.
8. The process for preparing a laser cladding composite deburring roller as claimed in claim 5, wherein said coating equipment employs a 6KW laser line fiber coupled semiconductor laser.
9. The process for preparing a laser-clad composite deburring roller as claimed in claim 8, wherein the process parameters of said coating include: the laser power is 5-5.5 KW, the scanning speed is 450-520 mm/min, the diameter of a light spot is 19x3.7mm, the lap joint amount is 8-12 mm, the powder feeding speed is 80-85 g/min, and the defocusing amount is 20-30 mm.
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| CN202111123956.7A CN113832462B (en) | 2021-09-24 | 2021-09-24 | Laser cladding composite deburring roller and preparation method thereof |
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| CN202111123956.7A CN113832462B (en) | 2021-09-24 | 2021-09-24 | Laser cladding composite deburring roller and preparation method thereof |
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| CN113832462B CN113832462B (en) | 2023-06-27 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11310825A (en) * | 1998-04-28 | 1999-11-09 | Nippon Steel Corp | Manufacture of work roll for cold rolling |
| CN103088336A (en) * | 2013-01-29 | 2013-05-08 | 清华大学 | Laser cladding method for roller |
| WO2016055545A1 (en) * | 2014-10-09 | 2016-04-14 | Centre de Recherches Métallurgiques asbl - Centrum voor Research in de Metallurgie vzw | Work roll manufactured by laser cladding and method therefor |
| CN106498308A (en) * | 2016-12-29 | 2017-03-15 | 沈阳大陆激光工程技术有限公司 | A kind of wear-resisting heat-resisting alloy material for small material roll laser alloying |
| CN110257819A (en) * | 2019-01-19 | 2019-09-20 | 天津北基新激光科技有限公司 | The laser melting coating Retreatment method of roll |
-
2021
- 2021-09-24 CN CN202111123956.7A patent/CN113832462B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11310825A (en) * | 1998-04-28 | 1999-11-09 | Nippon Steel Corp | Manufacture of work roll for cold rolling |
| CN103088336A (en) * | 2013-01-29 | 2013-05-08 | 清华大学 | Laser cladding method for roller |
| WO2016055545A1 (en) * | 2014-10-09 | 2016-04-14 | Centre de Recherches Métallurgiques asbl - Centrum voor Research in de Metallurgie vzw | Work roll manufactured by laser cladding and method therefor |
| CN106498308A (en) * | 2016-12-29 | 2017-03-15 | 沈阳大陆激光工程技术有限公司 | A kind of wear-resisting heat-resisting alloy material for small material roll laser alloying |
| CN110257819A (en) * | 2019-01-19 | 2019-09-20 | 天津北基新激光科技有限公司 | The laser melting coating Retreatment method of roll |
Non-Patent Citations (1)
| Title |
|---|
| 左攀峰, 航空工业出版社 * |
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