CN108165986A - A kind of helical axis wearing layer laser melting and coating process - Google Patents
A kind of helical axis wearing layer laser melting and coating process Download PDFInfo
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- CN108165986A CN108165986A CN201711491364.4A CN201711491364A CN108165986A CN 108165986 A CN108165986 A CN 108165986A CN 201711491364 A CN201711491364 A CN 201711491364A CN 108165986 A CN108165986 A CN 108165986A
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- helical axis
- wearing layer
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- laser melting
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C24/00—Coating starting from inorganic powder
- C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
- C23C24/10—Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
- C23C24/103—Coating with metallic material, i.e. metals or metal alloys, optionally comprising hard particles, e.g. oxides, carbides or nitrides
- C23C24/106—Coating with metal alloys or metal elements only
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Laser Beam Processing (AREA)
Abstract
The present invention relates to a kind of helical axis wearing layer laser melting and coating process, are as follows shown：S1：Wearing layer removal, S2：Surface clean, S3：End processing, S4：Clamp cladding, S5：It examines, S6：Surface processes.The present invention carries out four layers of cladding on the blade of helical axis, and the service life of helical axis is improved by one layer of prime coat and three layers of wearing layer, plays the role of increasing practical performance.
Description
Technical field
The present invention relates to helical axis wearing layer technical field more particularly to a kind of helical axis wearing layer laser melting and coating process.
Background technology
Helical axis needs to carry out cladding wearing layer to surface blade during processing in order to extend its service life,
Extend the service life of helical axis by wearing layer, but existing wearing layer melting and coating process is there is significant limitation,
So it is just particularly important to improve a kind of helical axis wearing layer laser melting and coating process of its working efficiency design.
Invention content
The present invention carries out four layers of cladding on the blade of helical axis, and spiral shell is improved by one layer of prime coat and three layers of wearing layer
The service life of spin axis plays the role of increasing practical performance；A kind of helical axis wearing layer laser melting and coating process is provided.
To solve the technical issues of above-mentioned, the present invention provides a kind of helical axis wearing layer laser melting and coating process, specific
Step is as follows：
S1：Wearing layer removes：The wearing layer remained on helical axis is purged by cutter；
S2：Surface clean：The screw shaft surface for removing wearing layer is cleaned, removes the greasy dirt of screw shaft surface；
S3：End processes：Install two end plates, end plate plate thickness 30mm additional in helical axis both ends of the surface, end plate passes through two M20
Bolt is fixed on helical axis both ends, and helical axis is mounted on lathe or grinding machine, using center rest support, determines center on end plate
Hole site, the machining center hole on end plate, for the concentricity of post-production process guarantee helical axis；
S4：Clamp cladding：Helical axis is clamped using 4 dog chucks, and passes through laser and the blade periphery of helical axis is carried out
Four layers of cladding, wherein first layer are prime coat, and second to the 4th layer is wearing layer；
S5：It examines：Dye penetrant inspection is carried out to laser cladding layer；
S6：Surface processes：The helical axis periphery after flaw detection is processed by grinding machine.
With the above structure, the present invention carries out four layers of cladding on the blade of helical axis, passes through one layer of prime coat and three
Layer wearing layer improves the service life of helical axis, plays the role of increasing practical performance.
Description of the drawings
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
Fig. 1 is the process flow chart of the present invention.
Specific embodiment
The present invention provides a kind of helical axis wearing layer laser melting and coating process as shown in Figure 1, are as follows shown：
S1：Wearing layer removes：The wearing layer remained on helical axis is purged by cutter；
S2：Surface clean：The screw shaft surface for removing wearing layer is cleaned, removes the greasy dirt of screw shaft surface；
S3：End processes：Install two end plates, end plate plate thickness 30mm additional in helical axis both ends of the surface, end plate passes through two M20
Bolt is fixed on helical axis both ends, and helical axis is mounted on lathe or grinding machine, using center rest support, determines center on end plate
Hole site, the machining center hole on end plate, for the concentricity of post-production process guarantee helical axis；
S4：Clamp cladding：Helical axis is clamped using 4 dog chucks, and passes through laser and the blade periphery of helical axis is carried out
Four layers of cladding, wherein first layer are prime coat, and second to the 4th layer is wearing layer；
S5：It examines：Dye penetrant inspection is carried out to laser cladding layer；
S6：Surface processes：The helical axis periphery after flaw detection is processed by grinding machine.
Cladding parameter in above-mentioned step S4:Laser power：1700W, spot size：5mm, sweep speed：5mm/s,
Protective gas：Ar, 5L/min, run trace is in a zigzag, powder emission direction is vertically and laser scanning direction.
The constituent of prime coat in above-mentioned step S4 is：C：0.03%, Cr：17%, Si：0.3%, Mn：
0.2%, B：2.6%, surplus Fe, granularity 140-325 mesh, average hardness 26-30HRC.
Second to the 4th layer in above-mentioned step S4 is that the constituent of wearing layer is：C：0.5%, Cr：13%, B：
1.6%, Si：1.2%, Mn：0.8, surplus Fe, granularity 140-325 mesh, average hardness 50-55HRC.
The machined parameters that surface processes in above-mentioned step S6 is 500 ± 0.2mm of outside diameter, surface roughness to 0.8-
1.6。
The present invention carries out four layers of cladding on the blade of helical axis in summary, passes through one layer of prime coat and three layers of wearing layer
It improves the service life of helical axis, plays the role of increasing practical performance.
Claims (5)
1. a kind of helical axis wearing layer laser melting and coating process, it is characterised in that：Shown in it is as follows：
S1：Wearing layer removes：The wearing layer remained on helical axis is purged by cutter；
S2：Surface clean：The screw shaft surface for removing wearing layer is cleaned, removes the greasy dirt of screw shaft surface；
S3：End processes：Install two end plates, end plate plate thickness 30mm additional in helical axis both ends of the surface, end plate passes through two M20 bolts
Helical axis both ends are fixed on, helical axis is mounted on lathe or grinding machine, using center rest support, determines centre bore position on end plate
It puts, the machining center hole on end plate, ensures the concentricity of helical axis for post-production process；
S4：Clamp cladding：Helical axis is clamped using 4 dog chucks, and passes through laser and four layers is carried out to the blade periphery of helical axis
Cladding, wherein first layer are prime coat, and second to the 4th layer is wearing layer；
S5：It examines：Dye penetrant inspection is carried out to laser cladding layer；
S6：Surface processes：The helical axis periphery after flaw detection is processed by grinding machine.
2. a kind of helical axis wearing layer laser melting and coating process according to claim 1, it is characterised in that：The step S4
In cladding parameter:Laser power：1700W, spot size：5mm, sweep speed：5mm/s, protective gas：Ar, 5L/min, row
Track is walked as in a zigzag, powder emission direction is vertically and laser scanning direction.
3. a kind of helical axis wearing layer laser melting and coating process according to claim 1, it is characterised in that：The step S4
In the constituent of prime coat be：C：0.03%, Cr：17%, Si：0.3%, Mn：0.2%, B：2.6%, surplus Fe, grain
Spend 140-325 mesh, average hardness 26-30HRC.
4. a kind of helical axis wearing layer laser melting and coating process according to claim 1, it is characterised in that：The step S4
In second to the 4th layer be that the constituent of wearing layer is：C：0.5%, Cr：13%, B：1.6%, Si：1.2%, Mn：0.8,
Surplus is Fe, granularity 140-325 mesh, average hardness 50-55HRC.
5. a kind of helical axis wearing layer laser melting and coating process according to claim 1, it is characterised in that：The step S6
The machined parameters of middle surface processing are 500 ± 0.2mm of outside diameter, surface roughness to 0.8-1.6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711491364.4A CN108165986A (en) | 2017-12-30 | 2017-12-30 | A kind of helical axis wearing layer laser melting and coating process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711491364.4A CN108165986A (en) | 2017-12-30 | 2017-12-30 | A kind of helical axis wearing layer laser melting and coating process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108165986A true CN108165986A (en) | 2018-06-15 |
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ID=62517065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711491364.4A Pending CN108165986A (en) | 2017-12-30 | 2017-12-30 | A kind of helical axis wearing layer laser melting and coating process |
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| CN (1) | CN108165986A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11661861B2 (en) | 2021-03-03 | 2023-05-30 | Garrett Transportation I Inc. | Bi-metal variable geometry turbocharger vanes and methods for manufacturing the same using laser cladding |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102619477A (en) * | 2011-01-28 | 2012-08-01 | 中国石油大学(华东) | Wear and corrosion resistant iron-based alloy laser-cladding petroleum drill stem joint |
| CN104532233A (en) * | 2015-01-28 | 2015-04-22 | 河北瑞兆激光电机修复有限公司 | Motor rotor shaft position laser cladding repair method |
-
2017
- 2017-12-30 CN CN201711491364.4A patent/CN108165986A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102619477A (en) * | 2011-01-28 | 2012-08-01 | 中国石油大学(华东) | Wear and corrosion resistant iron-based alloy laser-cladding petroleum drill stem joint |
| CN104532233A (en) * | 2015-01-28 | 2015-04-22 | 河北瑞兆激光电机修复有限公司 | Motor rotor shaft position laser cladding repair method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11661861B2 (en) | 2021-03-03 | 2023-05-30 | Garrett Transportation I Inc. | Bi-metal variable geometry turbocharger vanes and methods for manufacturing the same using laser cladding |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180615 |
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| RJ01 | Rejection of invention patent application after publication |