CN115710703B - Method and machine tool for preparing corrosion-resistant wear-resistant cladding layer by ultra-high-speed laser cladding - Google Patents
Method and machine tool for preparing corrosion-resistant wear-resistant cladding layer by ultra-high-speed laser cladding Download PDFInfo
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- 238000005253 cladding Methods 0.000 title claims abstract description 97
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000005260 corrosion Methods 0.000 title claims abstract description 21
- 230000007797 corrosion Effects 0.000 title claims abstract description 21
- 238000004372 laser cladding Methods 0.000 title claims abstract description 18
- 239000000843 powder Substances 0.000 claims abstract description 75
- 239000000956 alloy Substances 0.000 claims abstract description 25
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 24
- 238000012545 processing Methods 0.000 claims abstract description 15
- 238000007873 sieving Methods 0.000 claims abstract description 4
- 238000007781 pre-processing Methods 0.000 claims abstract description 3
- 239000007789 gas Substances 0.000 claims description 7
- 238000000227 grinding Methods 0.000 claims description 6
- 239000012159 carrier gas Substances 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 229910052804 chromium Inorganic materials 0.000 claims description 3
- 239000011261 inert gas Substances 0.000 claims description 3
- 229910052748 manganese Inorganic materials 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 9
- 238000005336 cracking Methods 0.000 abstract description 6
- 238000005299 abrasion Methods 0.000 abstract description 5
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000009713 electroplating Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000000571 coke Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000009191 jumping Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000009659 non-destructive testing Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
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- 238000004381 surface treatment Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000007514 turning Methods 0.000 description 1
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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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Abstract
The invention provides a method and a machine tool for preparing a corrosion-resistant and wear-resistant cladding layer by ultra-high-speed laser cladding, which comprises the following steps of (1) preprocessing a surface to be clad of a workpiece; (2) Sieving alloy powder, baking in an oven, preserving heat for a set time, and adding into a powder feeder of inner wall cladding equipment for standby; (3) clamping the workpiece on an inner hole ultra-high speed cladding machine tool; (4) Adjusting the size of the light spot and the height of the powder feeding head, and determining the position coordinates of a cladding starting point and an end point; (5) Setting processing parameters, starting a processing program, and cladding an alloy cladding layer with a certain thickness on the inner wall of a workpiece. The obtained alloy cladding layer has compact internal structure, no air hole and cracking problems, good metallurgical bonding with a base material and excellent wear resistance and corrosion resistance. Solves a series of problems of rust, abrasion and the like which are easy to occur in the use process of the inner walls of the workpieces such as part of pipe fittings, cylinder bodies and the like.
Description
Technical Field
The invention relates to the technical field of cladding of inner walls of workpieces, in particular to a method and a machine tool for preparing a corrosion-resistant and wear-resistant cladding layer by ultra-high-speed laser cladding.
Background
In the fields of engineering machinery, petrochemical industry, aerospace and the like, a series of problems such as corrosion, abrasion and the like can gradually occur on the inner walls of a plurality of pipe fittings or cylinder bodies under the severe working environments such as weak acidity, dampness, high pressure impact and the like, the service life of the pipe fittings or cylinder bodies is seriously restricted, and a plurality of production safety hidden dangers can be brought.
The traditional surface processing methods such as electroplating, overlaying and spraying have certain limitations in the aspect of inner wall surface processing, such as plating thin, falling off, pollution and the like in the electroplating process, and the problems of workpiece deformation and cracking easily caused by large heat input in the overlaying process, poor combination of a coating prepared by the spraying process and a base material and the like are solved, so that a new surface treatment technology is needed to realize low-cost, high-efficiency and other workpiece inner wall additive manufacturing, and the wear resistance and corrosion resistance are really improved.
The ultra-high speed laser cladding technology is a laser surface modification technology, adopts a synchronous powder feeding mode, utilizes high-energy laser beams to melt alloy powder and the surface of a substrate moving at high speed simultaneously, and rapidly solidifies to form a cladding layer which has low dilution rate and is metallurgically combined with the substrate. The technology can prepare the cladding layers with extremely low surface roughness and compact internal tissues at high efficiency, and can realize the preparation of the cladding layers with different performances by adjusting alloy materials. Compared with the traditional electroplating, overlaying, spraying and other methods, the method has great advantages.
At present, research and application of the ultra-high speed cladding technology are mainly focused on laser cladding of the outer surface of a shaft part of a revolving body structure, and the research on the ultra-high speed laser cladding of the inner wall is relatively less, and the cladding layer has the advantages of tissue evacuation, pores and easiness in cracking.
Disclosure of Invention
The invention provides a method and a machine tool for preparing a corrosion-resistant wear-resistant cladding layer by ultra-high-speed laser cladding, which are used for solving the problems of evacuation, air holes and easiness in cracking of the cladding layer on the inner wall of the existing workpiece.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the invention provides a method for preparing a corrosion-resistant and wear-resistant cladding layer by ultra-high-speed laser cladding, which comprises the following steps:
(1) Preprocessing the surface to be clad of the workpiece;
(2) Sieving alloy powder, baking in an oven, preserving heat for a set time, and adding into a powder feeder of inner wall cladding equipment for standby;
(3) Clamping a workpiece on an inner hole ultrahigh-speed cladding machine tool;
(4) Adjusting the size of the light spot and the height of the powder feeding head, and determining the position coordinates of a cladding starting point and an end point;
(5) Setting processing parameters, starting a processing program, and cladding an alloy cladding layer with a certain thickness on the inner wall of a workpiece.
Further, after cladding is finished, the workpiece is detached from the machine tool and is placed in the air for natural cooling; and grinding the cooled workpiece to the use size for the cladding layer.
Further, the pre-cladding size in step (1) is twice the target usage size+the retained cladding layer thickness.
Further, the alloy powder in the step (2) has a particle size of 80 to 600 mesh and a Hall flow rate of 12 to 20 (sec/50 g).
Further, the baking temperature of the alloy powder in the step (2) is 80-120 ℃ and the time is not less than 60min.
Further, the alloy powder in the step (2) has the following composition: the weight portions are as follows: 0.05 to 0.2 percent of C, 0.5 to 3 percent of Si, 15 to 30 percent of Cr, 2.5 to 10 percent of Ni, 0.25 to 1.5 percent of B, and Mn: 0.5-1.5%, mo 1-5% and Fe the rest.
Further, in the step (3), the workpiece is fixed, the workpiece is aligned, and the alignment requirement on the workpiece is that the jumping requirement on the circumferential directions of the front end and the rear end of the surface to be clad of the workpiece is not more than 0.3mm.
Further, in the step (4), the light spot size is 1.2mm-1.8mm, the height requirement of the cladding head is 12mm-16mm higher than that of the workpiece, and the powder class is located 1mm-2mm above the workpiece.
Further, in the step (5), the processing parameters comprise that the power of a laser is 5000W-8000W, the cladding linear speed is 25 m/min-50 m/min, the lap joint rate is 70% -80%, and the cladding thickness is 0.2mm-1mm; the powder feeding amount of the powder feeder per unit time is 20 g/min-100 g/min, the powder feeding mode is carrier gas type powder feeding, inert gas is selected as gas, and the gas flow is 5L/min-30L/min.
The machine tool for preparing the corrosion-resistant and wear-resistant cladding layer by ultra-high-speed laser cladding comprises a machine tool body, a numerical control system, a chuck and a bracket for fixing a workpiece, a movable upright post arranged on the machine tool body, a powder feeder, a laser and a cladding head; the rotating shaft of the chuck is used as a main shaft, the powder feeder and the laser are sequentially started during cladding, the cladding of the whole surface to be machined of a workpiece is realized in a spiral line mode, the laser stops emitting light when the program is finished, the powder feeder stops emitting powder, and the cladding head is moved to a safe position after exiting the workpiece.
The effects provided in the summary of the invention are merely effects of embodiments, not all effects of the invention, and one of the above technical solutions has the following advantages or beneficial effects:
1. the alloy cladding layer obtained by the cladding method for the inner wall of the workpiece has compact internal structure, no air hole and cracking problems, good metallurgical bonding with a base material and excellent wear resistance and corrosion resistance. Solves a series of problems of rust, abrasion and the like which are easy to occur in the use process of the inner walls of the workpieces such as part of pipe fittings, cylinder bodies and the like.
2. Meanwhile, the method has the advantages of high production efficiency, low cost, high material utilization rate, accurate and controllable cladding layer thickness and stable processing process.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the description of the embodiments or the prior art will be briefly described below, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.
FIG. 1 is a metallographic structure of a cladding layer of the present invention;
FIG. 2 is a perspective view of the machine tool of the present invention;
fig. 3 is a front view of the machine tool of the present invention.
Detailed Description
In order to clearly illustrate the technical features of the present solution, the present invention will be described in detail below with reference to the following detailed description and the accompanying drawings. The following disclosure provides many different embodiments, or examples, for implementing different structures of the invention. In order to simplify the present disclosure, components and arrangements of specific examples are described below. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. It should be noted that the components illustrated in the figures are not necessarily drawn to scale. Descriptions of well-known components and processing techniques and processes are omitted so as to not unnecessarily obscure the present invention.
A method for preparing a corrosion-resistant and wear-resistant cladding layer by ultra-high-speed laser cladding comprises the following steps:
(1) The surface to be clad of the workpiece is pretreated, the workpiece is processed to the size before cladding by using the processing modes such as turning, grinding and the like, and rust and greasy dirt on the surface are cleaned.
(2) And (3) sieving alloy powder by a screen, baking in an oven, preserving heat for a certain time, and adding the alloy powder into a powder feeder of inner wall cladding equipment for standby.
(3) The workpiece is clamped on an inner hole ultra-high speed cladding machine tool, the workpiece is fixed by matching the chuck and the bracket, and the workpiece is aligned by using a dial indicator.
(4) And adjusting the size of the light spot to be proper, adjusting the height of the powder feeding head to be proper, and determining the coordinates of the cladding starting point and the end point.
(5) Setting processing parameters, and editing a processing program, wherein the program comprises switching instructions of a laser and a powder feeder and movement instructions of a machine tool.
(6) Starting a machining program, sequentially starting a machine tool spindle (a rotating shaft of a chuck for fixing a workpiece), a powder feeder and a laser, cladding the whole surface to be machined of the workpiece in a spiral line mode, stopping light emission of the laser when the program is finished, stopping powder emission of the powder feeder, and moving a cladding head to a safe position after the cladding head exits the workpiece. At the moment, an alloy cladding layer with a certain thickness and excellent wear resistance and corrosion resistance is added on the inner wall of the workpiece. The device composition is shown in figures 2 and 3.
(7) After cladding, the workpiece is detached from the machine tool and placed in the air for natural cooling.
(9) And grinding the cladding layer to a use size by honing the cooled workpiece.
The pre-cladding size in step (1) is twice the target use size + the retained cladding layer thickness.
The alloy powder in the step (2) has a particle size of 80-600 meshes and a Hall flow rate of 12-20 (sec/50 g).
The baking temperature of the alloy powder in the step (2) is 80-120 ℃ and the time is not less than 60min.
The alloy powder in the step (2) comprises the following components: the weight portions are as follows: 0.05 to 0.2 percent of C, 0.5 to 3 percent of Si, 15 to 30 percent of Cr, 2.5 to 10 percent of Ni, 0.25 to 1.5 percent of B, and Mn: 0.5-1.5%, mo 1-5% and Fe the rest.
In the step (3), the workpiece is fixed, the workpiece is aligned, and the alignment requirement on the workpiece is that the jumping requirement on the circumferential directions of the front end and the rear end of the surface to be clad of the workpiece is not more than 0.3mm.
In the step (4), the light spot size is 1.2mm-1.8mm, the height requirement of the cladding head is 12mm-16mm higher than that of the workpiece, and the powder class is 1mm-2mm above the workpiece.
In the step (5), the processing parameters comprise the laser power of 5000W-8000W, the cladding linear speed of 25 m/min-50 m/min, the lap joint rate of 70% -80% and the cladding thickness of 0.2mm-1mm; the powder feeding amount of the powder feeder per unit time is 20 g/min-100 g/min, the powder feeding mode is carrier gas type powder feeding, inert gas is selected as gas, and the gas flow is 5L/min-30L/min.
Example 1:
the workpiece to be processed is a cylinder body at a certain part in the engineering machinery, the outer diameter is 440mm, the inner diameter is 380mm, the wall thickness is 30mm, and the material is 27SiMn.
(1) The inner wall of the cylinder body of the workpiece is pretreated, the wall thickness is reduced by 0.4mm after boring machine processing, and the oil stain on the surface is cleaned by using alcohol.
(2) And (3) screening metal powder with the mark of 431 stainless steel by a 150-mesh screen, placing the metal powder in an oven, preserving heat for 60min at 100 ℃ for drying, and then adding the dried powder into a powder feeder of inner wall ultra-high speed equipment for standby.
(3) The workpiece is clamped on an inner hole ultra-high speed cladding machine tool, the workpiece is fixed by using a chuck and a bracket, and the front end and the rear end of the workpiece jump by 0.1 mm-0.2 mm.
(4) The size of the light spot is adjusted to 1.5mm, the distance between the powder feeding head and the workpiece is about 15mm, and at the moment, the powder coke is positioned at the position 1-2 mm above the workpiece, so that about 80% of energy of the laser is ensured to be used for melting the powder.
5) Setting processing parameters, wherein the laser power is 6000W, the cladding linear speed is 30m/min, the lap joint rate is 75%, the powder feeding amount per unit time of the powder feeder is 60g/min, and the powder feeding gas is N 2 The flow rate is 5L/min.
6) And editing the program, and after confirming the parameters and coordinates, running the program until the ultra-high-speed laser cladding of the inner wall of the whole workpiece is completed. The cladding thickness is 0.6mm.
7) And the workpiece is naturally cooled in the air after being disassembled.
8) And grinding the inner wall of the workpiece after cladding, and obtaining the use size after 0.2mm of unilateral machining.
And performing performance test on the obtained cladding layer to reach the following indexes: through nondestructive testing, the cladding layer has no crack. The Rockwell hardness of the cladding layer is 52-55HRC, and the corrosion resistance is rated as 9 grades according to national standard GB/T6461-2002. The abrasion resistance is improved by more than 10 times compared with the base material.
Example 2:
1) The workpiece to be processed is a valve seat at a certain part in engineering machinery, the outer diameter of 220mm, the inner diameter of 170mm, the wall thickness of 25mm and the material of 40Cr are adopted, the inner wall of a workpiece cylinder body is pretreated, and the thickness of 0.2mm is removed from a single side.
2) The iron-based alloy powder is screened by a 150-mesh screen, then is placed in an oven to be dried by heat preservation for 60min at 100 ℃, and then the dried powder is added into an inner wall ultra-high speed equipment powder feeder for standby.
3) The workpiece is clamped on an inner hole ultra-high speed cladding machine tool, the workpiece is fixed by using a chuck and a bracket, and the front end and the rear end of the workpiece jump by 0.1 mm-0.2 mm.
4) The size of the light spot is adjusted to 1.6mm, the distance between the powder feeding head and the workpiece is about 15mm, and at the moment, the powder coke is positioned at the position 1-2 mm above the workpiece, so that 80% of energy of the laser is absorbed by the powder.
5) Setting processing parameters, wherein the laser power is 6000W, the cladding linear speed is 40m/min, the lap joint rate is 75%, the powder feeding amount per unit time of the powder feeder is 50g/min, and the carrier gas is nitrogen.
6) And editing the program, and after confirming the parameters and coordinates, running the program until the ultra-high-speed laser cladding of the inner wall of the whole workpiece is completed. The cladding thickness is 0.35mm.
7) And the workpiece is naturally cooled in the air after being disassembled.
8) And grinding the inner wall of the workpiece after cladding, and obtaining the use size after 0.15mm of unilateral machining.
The obtained cladding layer (fig. 1) was subjected to performance test to achieve the following index: through nondestructive testing, the cladding layer has no crack. The Rockwell hardness of the cladding layer is 45-48HRC, and the corrosion resistance is rated as 9 grades according to national standard GB/T6461-2002. The abrasion resistance is improved by more than 10 times compared with the base material.
The alloy cladding layer obtained by cladding processing of the invention has good metallurgical bonding with the matrix, compact internal structure and no defects of air holes, cracking and the like. The cladding layer has good surface finish, can be directly ground and has high production efficiency. By matching with proper alloy powder, the corrosion resistance and wear resistance of the base material are greatly improved, and the service life of a workpiece or equipment is remarkably prolonged.
As shown in fig. 2 and 3, the machine tool for preparing the corrosion-resistant and wear-resistant cladding layer by ultra-high-speed laser cladding comprises a machine body 1, a numerical control system 2, a chuck 3 and a bracket 4 (capable of moving along a linear guide rail to adjust the position) for fixing a workpiece, a movable upright post 5, a powder feeder 6, a laser and a cladding head 7, wherein the movable upright post 5, the powder feeder 6, the laser and the cladding head 7 are arranged on the machine body; the movable upright post can move on the lathe bed along the sliding rail. The rotating shaft of the chuck is used as a main shaft, the powder feeder and the laser are sequentially started during cladding, the cladding of the whole surface to be machined of a workpiece is realized in a spiral line mode, the laser stops emitting light when the program is finished, the powder feeder stops emitting powder, and the cladding head is moved to a safe position after exiting the workpiece.
While the foregoing description of the embodiments of the present invention has been presented in conjunction with the drawings, it should be understood that it is not intended to limit the scope of the invention, but rather, it is intended to cover all modifications or variations within the scope of the invention as defined by the claims of the present invention.
Claims (4)
1. The method for preparing the corrosion-resistant and wear-resistant cladding layer by ultra-high-speed laser cladding is characterized by comprising the following steps of:
(1) Preprocessing the surface to be clad of the workpiece;
(2) Sieving alloy powder, baking in an oven, preserving heat for a set time, and adding into a powder feeder of inner wall cladding equipment for standby;
(3) Clamping a workpiece on an inner hole ultrahigh-speed cladding machine tool;
(4) The size of the light spot and the height of the powder feeding head are regulated, and the position coordinates of a cladding starting point and an end point are determined, wherein the size of the light spot is 1.2mm-1.8mm, the height requirement of the cladding head is 12mm-16mm higher than that of a workpiece, and the powder spot is 1mm-2mm above the workpiece;
(5) Setting processing parameters, starting a processing program, and cladding an alloy cladding layer with a certain thickness on the inner wall of a workpiece, wherein the processing parameters comprise laser power of 5000-8000W, cladding linear speed of 25-50 m/min, overlap ratio of 70-80%, and cladding thickness of 0.2-1 mm; the powder feeding amount of the powder feeder per unit time is 20-100 g/min, the powder feeding mode is carrier gas type powder feeding, inert gas is selected as gas, and the gas flow is 5-30L/min;
the granularity of the alloy powder in the step (2) is 80-600 meshes, and the Hall flow rate is 12-20 sec/50g;
the baking temperature of the alloy powder in the step (2) is 80-120 ℃ and the time is not less than 60min;
the alloy powder in the step (2) comprises the following components: the weight portions are as follows: 0.05 to 0.2 percent of C, 0.5 to 3 percent of Si, 15 to 30 percent of Cr, 2.5 to 10 percent of Ni, 0.25 to 1.5 percent of B, and Mn: 0.5-1.5%, mo 1-5% and Fe the rest.
2. The method for preparing the corrosion-resistant and wear-resistant cladding layer by ultra-high-speed laser cladding according to claim 1, wherein after cladding is finished, the workpiece is detached from the machine tool and is naturally cooled in air; and grinding the cooled workpiece to the use size for the cladding layer.
3. The method for preparing the corrosion-resistant and wear-resistant cladding layer by ultra-high-speed laser cladding according to claim 1, wherein in the step (3), a workpiece is fixed, the workpiece is aligned, and the alignment requirement of the workpiece is that the jump requirement of the front end and the rear end of the surface to be clad of the workpiece in the circumferential direction is not more than 0.3mm.
4. A machine tool applied to the method for preparing the corrosion-resistant and wear-resistant cladding layer by ultra-high-speed laser cladding according to any one of claims 1-3, comprising a machine tool body, a numerical control system, a chuck and a bracket for fixing a workpiece, and further comprising a movable upright post, a powder feeder, a laser and a cladding head which are arranged on the machine tool body; the rotating shaft of the chuck is used as a main shaft, the powder feeder and the laser are sequentially started during cladding, the cladding of the whole surface to be machined of a workpiece is realized in a spiral line mode, the laser stops emitting light when the program is finished, the powder feeder stops emitting powder, and the cladding head is moved to a safe position after exiting the workpiece.
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Denomination of invention: Method and machine tool for preparing corrosion-resistant and wear-resistant cladding layer by ultra high speed laser cladding Granted publication date: 20231103 Pledgee: Huaxia Bank Co.,Ltd. Jinan Branch Pledgor: SHANDONG LEISHI INTELLIGENT MANUFACTURING Co.,Ltd. Registration number: Y2024980004784 |