CN113584473A - Laser cladding processing method for small-diameter deep hole - Google Patents
Laser cladding processing method for small-diameter deep hole Download PDFInfo
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- CN113584473A CN113584473A CN202110861333.3A CN202110861333A CN113584473A CN 113584473 A CN113584473 A CN 113584473A CN 202110861333 A CN202110861333 A CN 202110861333A CN 113584473 A CN113584473 A CN 113584473A
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- 238000004372 laser cladding Methods 0.000 title claims abstract description 27
- 238000003672 processing method Methods 0.000 title claims abstract description 17
- 238000003466 welding Methods 0.000 claims abstract description 81
- 238000005253 cladding Methods 0.000 claims abstract description 34
- 239000000843 powder Substances 0.000 claims abstract description 23
- 239000000463 material Substances 0.000 claims abstract description 12
- 238000004140 cleaning Methods 0.000 claims abstract description 7
- 238000009659 non-destructive testing Methods 0.000 claims abstract description 4
- 239000012459 cleaning agent Substances 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 9
- 238000004321 preservation Methods 0.000 claims description 9
- 238000005516 engineering process Methods 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 8
- 238000012545 processing Methods 0.000 claims description 8
- 238000012544 monitoring process Methods 0.000 claims description 7
- 239000000523 sample Substances 0.000 claims description 7
- 239000004744 fabric Substances 0.000 claims description 6
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 6
- 230000007547 defect Effects 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 3
- 239000000428 dust Substances 0.000 claims description 3
- 238000001704 evaporation Methods 0.000 claims description 3
- 230000009467 reduction Effects 0.000 claims description 3
- 239000004065 semiconductor Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 239000000956 alloy Substances 0.000 abstract description 8
- 229910045601 alloy Inorganic materials 0.000 abstract description 8
- 238000010790 dilution Methods 0.000 abstract description 3
- 239000012895 dilution Substances 0.000 abstract description 3
- 238000005507 spraying Methods 0.000 abstract description 2
- 238000009413 insulation Methods 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 22
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
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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)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention discloses a laser cladding processing method of a small-diameter deep hole, which comprises the following operation steps: cleaning, namely keeping the inner wall of the deep hole of the workpiece clean; preheating; removing the preheating device to start ranging and positioning; starting welding, closing the spot device, starting a laser lamp, spraying welding powder on the inner wall of the deep hole through a welding machine gun head, and welding the welding powder on the inner wall of the deep hole through high temperature generated by laser to form a cladding layer; carrying out post-heat insulation treatment; stress removal treatment; and (4) carrying out nondestructive testing. The inner hole laser cladding gun head is specially modified, cladding and surfacing can be carried out on the inner wall of a workpiece with a medium and small diameter, powder is subjected to inner hole surfacing in a laser cladding mode by adopting a welding material type of powder alloy, good metallurgical bonding is formed between a cladding layer and the inner wall of a deep hole, the cladding layer is compact in structure, a heat affected zone is small, the dilution rate is low, the cladding material has multiple choices, and different alloy proportions can be designed according to different engineering requirements.
Description
Technical Field
The invention relates to the technical field of laser cladding, in particular to a laser cladding processing method of a small-diameter deep hole.
Background
Laser cladding is also called laser cladding, and is a novel surface modification technology of a laser cladding processing method of a small-diameter deep hole. The method is characterized in that a cladding material is added on the surface of a base material, and the cladding material and a thin layer on the surface of the base material are fused together by utilizing a laser beam with high energy density, so that a cladding layer which is metallurgically bonded with the base layer is formed on the surface of the base layer. Compared with surfacing, spraying, electroplating and vapor deposition, laser cladding has the characteristics of small dilution, compact structure, good combination of a coating and a matrix, more suitable cladding materials, large particle size and content change and the like, so the application prospect of the laser cladding technology is very wide.
In the prior art, only large-diameter pipelines can be cladded by the laser cladding technology of the welding head at the present stage, and for small-diameter pipelines, the laser head is difficult to enter the pipelines due to the spatial limitation of cladding, so that the realization process is complex and the consumption is high.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a laser cladding processing method of a small-diameter deep hole.
The invention provides a laser cladding processing method of a small-diameter deep hole, which comprises the following operation steps:
s1: cleaning, namely keeping the inner wall of the deep hole of the workpiece clean;
s2: preheating, namely extending a heating head of a preheating device into the inner wall of the deep hole, evaporating the cleaning agent remained on the inner wall of the deep hole during cleaning through high temperature generated by the preheating device, and preheating the inner wall of the deep hole to enable the surface temperature of the inner wall to reach 150-200 ℃;
s3: removing the preheating device to start ranging and positioning, attaching a sliding range finder on a gun head of a laser welding machine to the outer surface wall of the deep hole opening, starting a monitoring probe on the gun head of the welding machine, starting a light spot machine, pushing the gun head of the welding machine into the deep hole, identifying the position of a light spot emitted by the light spot machine on a processing mark on the inner wall of the deep hole through a vision technology, recording the reading of the sliding range finder by the laser welding machine at the moment, taking the reading as a depth value of processing welding, and taking an instrument for driving a workpiece to act as an action parameter during subsequent welding;
s4: after S3, the gun head of the laser welding machine is positioned at the end of the welding area, welding is started, the light spot device is closed, the laser lamp is started, meanwhile, welding powder is sprayed on the inner wall of the deep hole through the gun head of the welding machine, and the welding powder is welded on the inner wall of the deep hole through high temperature generated by laser to form a cladding layer;
s5: post heat treatment, namely covering the surface of the cladding layer with a heat preservation material or preserving heat by using a heat preservation furnace after welding;
s6: stress relief treatment, integral postweld heat treatment, wherein the temperature is 638 +/-10 ℃, the heat preservation time is 3 to 6 hours, the temperature rise/reduction speed is less than 100 ℃/h, and furnace air cooling is carried out;
s7: and (4) nondestructive testing, wherein PT detects the welding defect condition of the surface of the cladding layer, and UT detects the internal quality condition of the cladding layer.
As a still further scheme of the invention: in the welding process, the mechanical arm is controlled by the numerical control device to drive the machined workpiece to move.
As a still further scheme of the invention: the gun head of the welding machine is an elbow, a reflector arranged in the gun head is used for changing a light path, so that an outlet of the light path points to the inner wall of the deep hole, an included angle between the changed light path and an original light path is 90-150 degrees, and welding is facilitated.
As a still further scheme of the invention: the sliding distance meter is composed of a sliding rheostat and a contact piece, the contact piece is used for contacting the outer wall of the deep hole, the sliding rheostat is arranged on the outer wall of the welding machine gun head, and the contact piece is arranged on the outer wall of a sliding contact of the sliding rheostat.
As a still further scheme of the invention: the monitoring probe is used for shooting in real time and transmitting video data to the display.
As a still further scheme of the invention: in the step S1, the solid dust on the inner wall of the deep hole is removed by using a clean cloth, the oil stain on the surface of the inner wall of the deep hole is removed by using a cleaning agent, the cleaning agent in the deep hole is cleaned, the oxide layer on the surface of the inner wall in the deep hole is removed by using a rust remover, and finally the rust remover in the deep hole is removed by using the clean cloth.
As a still further scheme of the invention: and in the step S4, when welding, the temperature between welding layers is kept to be less than 300 ℃, the laser power is 3KW to 4KW, a light source adopts a semiconductor device, and the powder feeding amount of welding powder is 40 to 70 g/min.
As a still further scheme of the invention: and before and during welding, continuously introducing shielding gas into the deep hole.
As a still further scheme of the invention: the light spot device and the laser have the same outlet, and the light source of the light spot device is a common red light source and is used for indicating the position to which the laser will point after being started.
The beneficial effects of the invention are as follows: the inner wall of a workpiece with a medium and small aperture can be subjected to cladding surfacing by adopting a specially modified inner hole laser cladding gun head, the inner wall of the workpiece with the medium and small aperture can be subjected to cladding surfacing by adopting a welding material type of powder alloy, the powder is subjected to the surfacing by adopting a laser cladding mode, a cladding layer and the inner wall of a deep hole of a processing base body form good metallurgical bonding, the cladding layer has compact tissue, a heat affected zone is small, the dilution rate is low, the cladding material has multiple choices, and different alloy proportions can be designed according to different engineering requirements so as to effectively control the tissue and the performance of the cladding layer in the cladding process; the monitoring probe and the spot light device are matched with each other, so that the welding spot marking position set in advance can be automatically identified through a visual image technology, and welding predictability is realized.
Detailed Description
The following further describes embodiments of the present invention with reference to examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the positional or orientational relationships indicated by the documents to facilitate the description of the patent and to simplify the description, but are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the patent.
In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.
A laser cladding processing method of a small-diameter deep hole comprises the following operation steps:
s1: cleaning, keeping the inner wall of the deep hole of the workpiece clean, and facilitating the formation of a cladding layer on the inner wall of the deep hole of the workpiece;
s2: preheating, namely extending a heating head of a preheating device into the inner wall of the deep hole, evaporating the cleaning agent remained on the inner wall of the deep hole during cleaning through high temperature generated by the preheating device, and preheating the inner wall of the deep hole to enable the surface temperature of the inner wall to reach 150-200 ℃;
s3: removing the preheating device to start ranging and positioning, attaching a sliding range finder on a gun head of a laser welding machine to the outer surface wall of the deep hole opening, starting a monitoring probe on the gun head of the welding machine, starting a light spot machine, pushing the gun head of the welding machine into the deep hole, identifying that a light spot emitted by the light spot machine is positioned at a processing mark position on the inner wall of the deep hole through a vision technology, recording the reading of the sliding range finder at the moment by the laser welding machine, taking the reading as a depth value of processing welding, and taking an instrument for driving a workpiece to act as an action parameter during subsequent welding;
s4: after S3, the gun head of the laser welder is positioned at the end of the welding area, welding is started, the light spot device is closed, the laser lamp is started, alloy powder (welding powder) is sent into the laser beam from the coaxial powder feeding gun head (welder gun head) through powder feeding gas, and is focused at a position 20mm away from the inner wall of the deep hole of the workpiece to form an alloy molten pool, the workpiece moves according to a certain speed to form a track molten pool, a cladding layer is formed on the surface of the workpiece, and the laser welder is cooled by water cooling in the welding process;
s5: post heat treatment, namely covering the surface of the cladding layer with a heat preservation material or preserving heat by using a heat preservation furnace after welding;
s6: stress relief treatment, integral postweld heat treatment, wherein the temperature is 638 +/-10 ℃, the heat preservation time is 3 to 6 hours, the temperature rise/reduction speed is less than 100 ℃/h, and furnace air cooling is carried out;
s7: nondestructive testing, wherein PT detects the welding defect condition of the surface of the cladding layer, UT detects the internal quality condition of the cladding layer, and welding defects such as air holes, incomplete fusion and cracks.
In the invention, in the welding process, the mechanical arm is controlled by the numerical control device to drive the machined workpiece to move.
According to the invention, the gun head of the welding machine is an elbow, the reflector arranged in the gun head is used for changing the light path, so that the outlet of the light path points to the inner wall of the deep hole, the included angle between the changed light path and the original light path is 90-150 degrees, and the welding is convenient.
According to the invention, the sliding distance meter consists of a sliding rheostat and a contact piece, the contact piece is used for contacting the outer wall of the deep hole, the sliding rheostat is arranged on the outer wall of a welding machine gun head, and the contact piece is arranged on the outer wall of a sliding contact of the sliding rheostat.
In the invention, the monitoring probe is used for shooting in real time and transmitting video data to the display, so that the marking position can be automatically identified through a visual image technology.
In the invention, in step S1, solid dust on the inner wall of the deep hole is removed by using clean cloth, oil stains on the surface of the inner wall of the deep hole are removed by using a cleaning agent, the cleaning agent in the deep hole is cleaned, the rust remover is used for removing an oxide layer on the surface of the inner wall in the deep hole, and finally the rust remover in the deep hole is cleaned by using the clean cloth, so that the formation and the attachment of a cladding layer are facilitated.
In the invention, when welding is carried out in the step S4, the welding interlayer temperature is kept to be less than 300 ℃, the laser power is 3KW to 4KW, a light source adopts a semiconductor device, the powder feeding amount of welding powder is 40 to 70g/min, the light spot range is 10-20mm, the welding working efficiency is 0.65 square meter/h to 1.25 square meter/h, the thickness of a cladding layer is 0.5-3mm, if the welding temperature exceeds the interlayer temperature in the welding process, an alarm is carried out by a set temperature thermometer, the welding powder is alloy powder, one or more of iron-based, nickel-based, cobalt-based, copper-based and composite materials are mixed in any proportion, and different alloy proportions are designed according to different engineering requirements so as to effectively control the organization and performance of the cladding layer in the cladding process.
In the invention, before and during welding, the shielding gas is continuously introduced into the deep hole to avoid the oxidation of a welding point, and the introduced shielding gas can not scatter welding powder.
In the invention, the light spot device and the laser have the same outlet, and the light source of the light spot device is a common red light source and is used for indicating the position to which the laser will point after being started, so that the functions of observation indication and prediction are achieved, and the starting position of welding is known before the laser is started.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (9)
1. The laser cladding processing method of the small-diameter deep hole is characterized by comprising the following operation steps of:
s1: cleaning, namely keeping the inner wall of the deep hole of the workpiece clean;
s2: preheating, namely extending a heating head of a preheating device into the inner wall of the deep hole, evaporating the cleaning agent remained on the inner wall of the deep hole during cleaning through high temperature generated by the preheating device, and preheating the inner wall of the deep hole to enable the surface temperature of the inner wall to reach 150-200 ℃;
s3: removing the preheating device to start ranging and positioning, attaching a sliding range finder on a gun head of a laser welding machine to the outer surface wall of the deep hole opening, starting a monitoring probe on the gun head of the welding machine, starting a light spot machine, pushing the gun head of the welding machine into the deep hole, identifying the position of a light spot emitted by the light spot machine on a processing mark on the inner wall of the deep hole through a vision technology, recording the reading of the sliding range finder by the laser welding machine at the moment, taking the reading as a depth value of processing welding, and taking an instrument for driving a workpiece to act as an action parameter during subsequent welding;
s4: after S3, the gun head of the laser welding machine is positioned at the end of the welding area, welding is started, the light spot device is closed, the laser lamp is started, meanwhile, welding powder is sprayed on the inner wall of the deep hole through the gun head of the welding machine, and the welding powder is welded on the inner wall of the deep hole through high temperature generated by laser to form a cladding layer;
s5: post heat treatment, namely covering the surface of the cladding layer with a heat preservation material or preserving heat by using a heat preservation furnace after welding;
s6: stress relief treatment, integral postweld heat treatment, wherein the temperature is 638 +/-10 ℃, the heat preservation time is 3 to 6 hours, the temperature rise/reduction speed is less than 100 ℃/h, and furnace air cooling is carried out;
s7: and (4) nondestructive testing, wherein PT detects the welding defect condition of the surface of the cladding layer, and UT detects the internal quality condition of the cladding layer.
2. The laser cladding processing method of the small-diameter deep hole as claimed in claim 1, wherein in the welding process, a numerical control device controls a mechanical arm to drive a processing workpiece to move.
3. The laser cladding processing method of the small-diameter deep hole according to claim 1, wherein a gun head of the welding machine is an elbow, a reflector arranged inside the gun head is used for changing a light path, so that an outlet of the light path points to the inner wall of the deep hole, and an included angle between the changed light path and an original light path is 90-150 degrees.
4. The laser cladding processing method of the small-diameter deep hole as claimed in claim 1, wherein the sliding distance meter is composed of a sliding rheostat and a contact piece, the contact piece is used for contacting with the outer wall of the deep hole, the sliding rheostat is arranged on the outer wall of the head of the welding machine, and the contact piece is arranged on the outer wall of a sliding contact of the sliding rheostat.
5. The laser cladding processing method of the small-diameter deep hole according to claim 1, wherein the monitoring probe is used for shooting in real time and transmitting video data to a display.
6. The laser cladding processing method of the small-diameter deep hole according to claim 1, wherein in step S1, solid dust on the inner wall of the deep hole is removed by using a clean cloth, oil stains on the surface of the inner wall of the deep hole are removed by using a cleaning agent, the cleaning agent in the cleaned hole is removed by using a rust remover, and finally the rust remover in the deep hole is removed by using the clean cloth.
7. The laser cladding processing method of the small-diameter deep hole according to claim 1, wherein when welding is performed in the step S4, the temperature between welding layers is kept less than 300 ℃, the laser power is 3KW to 4KW, a semiconductor device is adopted as a light source, and the powder feeding amount of welding powder is 40 g/min to 70 g/min.
8. The laser cladding processing method of the small-diameter deep hole according to claim 1, wherein before and during welding, a shielding gas is continuously introduced into the deep hole.
9. The laser cladding processing method of the small-diameter deep hole according to any one of claims 1 to 8, wherein the light spot device and the exit of the laser are the same exit, and the light source of the light spot device is a common red light source for indicating the position to which the laser will point after being turned on.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110861333.3A CN113584473A (en) | 2021-07-29 | 2021-07-29 | Laser cladding processing method for small-diameter deep hole |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110861333.3A CN113584473A (en) | 2021-07-29 | 2021-07-29 | Laser cladding processing method for small-diameter deep hole |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090291197A1 (en) * | 2008-05-21 | 2009-11-26 | Fraunhofer Usa | Laser cladding of tubes |
| CN105039973A (en) * | 2015-09-06 | 2015-11-11 | 浙江久恒光电科技有限公司 | Method for molding hard sealing layer on inner surface of annular component for pump body |
| CN205085524U (en) * | 2015-10-19 | 2016-03-16 | 豪利机械(苏州)有限公司 | Deep hole and cavity monitoring devices for inner surface -welding welder |
| CN108637432A (en) * | 2018-05-15 | 2018-10-12 | 豪利机械(苏州)有限公司 | A kind of inner walls of deep holes bead-welding technology of deep-sea oil mechanical workpieces |
| CN110052706A (en) * | 2019-05-23 | 2019-07-26 | 青岛明珠钢结构有限公司 | A kind of steel duct welder |
| CN211199408U (en) * | 2019-12-30 | 2020-08-07 | 苏州麦尔科唯激光机器人有限公司 | Telescopic laser cladding head |
-
2021
- 2021-07-29 CN CN202110861333.3A patent/CN113584473A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090291197A1 (en) * | 2008-05-21 | 2009-11-26 | Fraunhofer Usa | Laser cladding of tubes |
| CN105039973A (en) * | 2015-09-06 | 2015-11-11 | 浙江久恒光电科技有限公司 | Method for molding hard sealing layer on inner surface of annular component for pump body |
| CN205085524U (en) * | 2015-10-19 | 2016-03-16 | 豪利机械(苏州)有限公司 | Deep hole and cavity monitoring devices for inner surface -welding welder |
| CN108637432A (en) * | 2018-05-15 | 2018-10-12 | 豪利机械(苏州)有限公司 | A kind of inner walls of deep holes bead-welding technology of deep-sea oil mechanical workpieces |
| CN110052706A (en) * | 2019-05-23 | 2019-07-26 | 青岛明珠钢结构有限公司 | A kind of steel duct welder |
| CN211199408U (en) * | 2019-12-30 | 2020-08-07 | 苏州麦尔科唯激光机器人有限公司 | Telescopic laser cladding head |
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