CN110293317A - A kind of gradient titanium alloy laser gain material manufacturing method of nitrogen home position strengthening - Google Patents
A kind of gradient titanium alloy laser gain material manufacturing method of nitrogen home position strengthening Download PDFInfo
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- CN110293317A CN110293317A CN201910346009.0A CN201910346009A CN110293317A CN 110293317 A CN110293317 A CN 110293317A CN 201910346009 A CN201910346009 A CN 201910346009A CN 110293317 A CN110293317 A CN 110293317A
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- titanium alloy
- nitrogen
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- material manufacturing
- home position
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/12—Working by laser beam, e.g. welding, cutting or boring in a special atmosphere, e.g. in an enclosure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/34—Laser welding for purposes other than joining
- B23K26/342—Build-up welding
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- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
Abstract
The present invention discloses a kind of gradient titanium alloy laser gain material manufacturing method of nitrogen home position strengthening, laser aid generates laser beam during the work time, the titanium alloy welding wire and surrounding titanium alloy material that wire feeder is sent into are in molten state under laser heat effect, reaction gas nitrogen ionizes under laser beam effect, the nitrogen of ionic state and the titanium alloy reaction in-situ of molten state, the in-situ preparation titanium nitride reinforced phase on titanium alloy material to be processed.Regulating gas proportioner realizes different nitrogen argon gas proportions, to obtain different gradient strengthening effects.The present invention is during titanium alloy increasing material manufacturing, the reinforcing to titanium alloy material is realized simultaneously, no longer need to the secondary hardening for additionally carrying out material, reduce process flow, it can realize that the gradient-controllable of titanium alloy material is strengthened, and the use scope of titanium alloy material is expanded by adjusting different gas mixing ratios simultaneously.
Description
Technical field
The present invention relates to titanium alloy material increasing fields, more particularly to a kind of gradient titanium alloy of nitrogen home position strengthening
Laser gain material manufacturing method.
Background technique
Titanium or titanium alloy is due to the advantages that its density is low, specific strength is high, corrosion resistance is good, it is considered to be most promising gold
Belong to one of structural material.Because of the technical characterstic for the slicing delamination that increasing material manufacturing has, it is multiple to be widely used in titanium alloy
In the manufacture of miscellaneous part.Laser gain material manufacture is used as wherein important branch, by its precision height, the advantage that has shaped, gradually
It occupies an important position in titanium alloy material increasing field.But the laser gain material manufacturing method of current titanium alloy, which is not able to satisfy, to be made
During making while reinforcing of the realization to material, this material for allowing for preparation are applied to need additionally to carry out in industry secondary
Work strengthening increases process flow and production cost；Meanwhile secondary hardening can only often strengthen the surface of material,
It cannot achieve the reinforcing to material internal, strongly limit high strength titanium alloy material in the development of various fields.
Summary of the invention
The object of the present invention is to provide a kind of gradient titanium alloy laser gain material manufacturing methods of nitrogen home position strengthening, in titanium
It during alloy increasing material manufacturing, while realizing and the entirety of titanium alloy material is strengthened, and realized by control gas mixing ratio
Controllable strengthening effect.
To achieve the above object, the present invention provides following schemes.
A kind of gradient titanium alloy laser gain material manufacturing method of nitrogen home position strengthening, which comprises at surface
The clean titanium alloy substrate to be processed of reason is fixed on controllable work platform.
The angle for controlling welding wire and the titanium alloy substrate to be processed is 30 °, and the welding wire is made to be located at laser head
Underface.
Nitrogen cylinder and argon bottle are opened, reaction gas nitrogen and protective gas argon gas are provided.
Wire feeder is opened, wire feed rate is adjusted, realizes that the synchronous of welding wire is sent into while laser heat source movement.
Laser switch is opened by laser controlling center, laser generates laser and emits laser beam from laser head；
The nitrogen ionizes under laser beam effect, the nitrogen of ionic state is formed, with the welding wire and surrounding being sent into reaction process
Titanium alloy reaction in molten state, the in-situ preparation titanium nitride reinforced phase on the titanium alloy substrate to be processed.
Optionally, in the opening nitrogen cylinder and argon bottle, reaction gas nitrogen and protective gas argon gas are provided later also
Include: the flow of the flow and the argon gas that adjust the nitrogen, to realize different titanium alloy strengthening effects.
Optionally, the welding wire is titanium alloy welding wire.
The specific embodiment provided according to the present invention, the invention discloses following technical effects: nitrogen of the present invention is in situ
During the titanium alloy laser gain material manufacture of reinforcing, it is passed through nitrogen, make nitrogen is in ionic condition under the effect of the laser, and molten
The titanium alloy reaction in-situ for melting state generates titanium nitride reinforced phase in titanium alloy substrate to be processed, makes titanium alloy increasing material manufacturing
It is carried out simultaneously with the strengthening process to titanium alloy material, operating process is simple, while different by adjusting in the fabrication process
Titanium alloy gradient material can be made in gas mixing ratio, improve the use scope of titanium alloy material.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the gradient titanium alloy laser gain material manufacturing method for the nitrogen home position strengthening that the embodiment of the present invention provides
Structural schematic diagram.
Fig. 2 is the gradient titanium alloy laser gain material manufacturing method for the nitrogen home position strengthening that the embodiment of the present invention provides
Flow chart.
Fig. 3 is the gradient titanium alloy laser gain material manufacturing method for the nitrogen home position strengthening that the embodiment of the present invention provides
Schematic diagram.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The object of the present invention is to provide a kind of gradient titanium alloy laser gain material manufacturing methods of nitrogen home position strengthening, in titanium
During alloy increasing material manufacturing, the reinforcing to titanium alloy material is completed, and strengthening effect is controllable.
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real
Applying mode, the present invention is described in further detail.
Embodiment
As shown in Figure 1, 2, titanium alloy increasing material manufacturing method provided in this embodiment includes: laser 1, laser controlling center
2, wire feeder 3, controllable work platform 4, nitrogen cylinder 5, argon bottle 6, gas proportioning device 7, protection feed channel 8, laser head 9 and to be processed
Titanium alloy substrate 10.
Controllable work platform 4, for placing titanium alloy substrate 10 to be processed.
Specific step is as follows for titanium alloy increasing material manufacturing method provided in this embodiment.
(1) preparation of titanium alloy function-graded material is carried out using laser gain material manufacturing method.By TC4 titanium alloy substrate 10
Surface treatment is completely placed on controllable work platform 4, and fixes substrate position with fixture, is adjusted by laser controlling center 2
9 position of laser head confirms initial position and the final position of laser beam, it is ensured that laser is located at right above substrate initial position；It adjusts
Titanium alloy welding wire position is saved, is right against its end under laser beam and silk a height of 0, wire feed angle is 30 °, and welding wire increases in laser
Material manufacture laser is always positioned at the front of laser moving direction.
(2) it is 1000-3000W, speed of welding 3-12mm/s in laser controlling center adjustment laser power, adjusts wire feed
1 wire feed rate of mechanism is 100-300cm/min, and protection feed channel is connected with nitrogen cylinder 5, argon bottle 6, while connecting in centre
Connect mixed gas proportioner 7；Gas cylinder switch, while regulating gas proportioner are opened, so that total gas flow rate is 10L/min,
Wherein nitrogen flow is 0-2L/min, and remaining gas is argon gas.
(3) in laser gain material manufacturing process, control work platform 4 is at the uniform velocity moved to set direction after laser beam generation, TC4 weldering
Silk melts under laser action to be spread on titanium alloy substrate, starts single layer titanium alloy laser gain material manufacturing process, wherein nitrogen
The nitrogen of ionic state is ionized out under laser action, the nitrogen of ionic state is attached to weld pool surface under laser action, and laser is moved through
The titanium alloy flowing of bath molten state is driven to bring the nitrogen for the ionic state for being attached to weld pool surface into bath into journey,
The nitrogen of ionic state reacts in situ with molten state titanium generates titanium nitride reinforced phase, thus while the process of increasing material manufacturing
The reinforcing to titanium alloy material is completed in situ.
(4) after the completion of the increasing material manufacturing of single track titanium alloy, protective gas and laser aid switch are closed, laser head is back to just
Beginning and adjusts height at position, passes through the range of flow for adjusting the nitrogen argon gas of the gas mixing ratio described in step 2, control is different
Nitrogen argon gas ratio, adjustment parameter continues the increasing material manufacturing process of titanium alloy material.It can be real by real-time control gas mixing ratio
The different strengthening effects of existing titanium alloy material, realize the controllable reinforcing of titanium alloy material, prepare the titanium alloy with gradient function
Material.
This method can be realized the home position strengthening that titanium alloy material is completed at the same time during titanium alloy increasing material manufacturing,
And it can control different strengthening effects, it is easy to make operating process, and then improve the use scope of titanium alloy material.
A kind of gradient titanium alloy laser gain material manufacturing method of nitrogen home position strengthening, as shown in Fig. 2, the method packet
It includes:
Step 1: the clean titanium alloy substrate to be processed of surface treatment is fixed on controllable work platform；
Step 2: the angle of control titanium alloy welding wire and the titanium alloy substrate to be processed is 30 °, and the welding wire is made to be located at institute
The underface of laser head is stated, and wire feed rate is adjusted by wire feeder；
Step 3: opening nitrogen cylinder and argon bottle, provide reaction gas nitrogen and protective gas argon gas, and adjust the nitrogen
The different flow of flow and argon gas proportion；
Step 4: laser switch being opened by laser controlling center, laser generates laser and emits laser from laser head
Beam；The nitrogen forms the nitrogen of ionic state after ionizing under laser action, with the titanium alloy for being in molten state in manufacturing process
Reaction in-situ generates titanium nitride reinforced phase on the titanium alloy substrate to be processed.
As shown in figure 3, laser head 9-1 generates laser beam 12, nitrogen 5-1 is ionized under the action of laser beam and is formed ionic state
Nitrogen, be attached to the surface in molten bath 13, titanium alloy welding wire 11 spreads under the action of laser beam 12 in molten condition to be processed
Titanium alloy substrate on, the nitrogen of ionic state and the titanium alloy in-situ junction symphysis of molten condition are at titanium oxide reinforced phase, thus in titanium
The reinforcing to titanium alloy material is completed while the process of alloy increasing material manufacturing in situ.
Method provided by the invention not only may be implemented single layer titanium alloy increasing material manufacturing, and be matched by adjusting in gas
Than device, different nitrogen argon gas ratios is controlled, adjustment parameter realizes the different strengthening effects of titanium alloy material, realizes titanium alloy material
The controllable reinforcing of material prepares the titanium alloy material with gradient function.
For the method disclosed in the embodiment, since it is corresponding with device disclosed in embodiment, so the ratio of description
Relatively simple, reference may be made to the description of the method.
Used herein a specific example illustrates the principle and implementation of the invention, and above embodiments are said
It is bright to be merely used to help understand method and its core concept of the invention；At the same time, for those skilled in the art, foundation
Thought of the invention, there will be changes in the specific implementation manner and application range.In conclusion the content of the present specification is not
It is interpreted as limitation of the present invention.
Claims (10)
1. a kind of titanium alloy laser gain material manufacturing method of nitrogen home position strengthening, which is characterized in that the described method includes:
Laser 1, laser head 9 and controllable work platform 4 are connected with laser controlling center 2, and nitrogen cylinder 5, argon bottle 6 are matched with gas
It is exported after being connected than device 7 by protection feed channel 8；Wire feeder 3 send welding wire to titanium alloy substrate to be processed.
2. the gradient titanium alloy laser gain material manufacturing method of nitrogen home position strengthening according to claim 1, feature
Be: the wire feeder send the welding wire to laser head, and welding wire is in molten state under laser heat source effect；It is described
Nitrogen ionizes under laser action, and the nitrogen of ionic state moves near molten bath under argon atmosphere, flows in molten bath
Enter molten bath in journey and be attached to the surface in molten bath, with the displacement of laser heat source during increasing material manufacturing, drives molten
The flowing of pond inner molten state titanium alloy, the titanium that ionic state nitrogen enters bath and molten state reacts in situ generates nitrogen
Change titanium reinforced phase to realize to the reinforcing in material preparation process.
3. the gradient titanium alloy laser gain material manufacturing method of nitrogen home position strengthening according to claim 1, feature
It is: the controllable work platform to be processed titanium alloy substrate clean for placement surface processing, and by the laser controlling center
Control spatial displacement, movement speed 3-12mm/s.
4. the gradient titanium alloy laser gain material manufacturing method of nitrogen home position strengthening according to claim 1, feature
Be: laser generates laser and emits laser beam by laser head, and it is 1000- that laser controlling center adjustment, which emits laser power,
3000W。
5. the gradient titanium alloy laser gain material manufacturing method of nitrogen home position strengthening according to claim 1, feature
Be: the wire feeder sends out welding wire, and sends out angle and horizontal base plate into 30 ° of angles.
6. the gradient titanium alloy laser gain material manufacturing method of nitrogen home position strengthening according to claim 5, feature
Be: the wire feeder wire feed rate is 100-300cm/min.
7. the gradient titanium alloy laser gain material manufacturing method of nitrogen home position strengthening according to claim 5, feature
Be: the welding wire is titanium alloy welding wire.
8. the gradient titanium alloy laser gain material manufacturing method of nitrogen home position strengthening according to claim 1, feature
Be: the nitrogen cylinder and argon bottle, for reaction gas nitrogen and protective gas argon gas is inputted in the process, wherein nitrogen with
The reaction of molten state titanium alloy generates titanium nitride reinforced phase, and argon gas protects reaction process.
9. the gradient titanium alloy laser gain material manufacturing method of nitrogen home position strengthening according to claim 1, feature
Be: the gas proportioning device, the nitrogen for carrying out conveying are matched with argon gas, to realize that different titanium alloys is strengthened
Effect.
10. the gradient titanium alloy laser gain material manufacturing method of nitrogen home position strengthening according to claim 9, feature
Be: it is 10L/min that the gas proportioning device, which adjusts total gas flow, and wherein nitrogen flow is 0-2L/min, remaining gas
It is argon gas.
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| CN201910346009.0A CN110293317A (en) | 2019-04-26 | 2019-04-26 | A kind of gradient titanium alloy laser gain material manufacturing method of nitrogen home position strengthening |
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| CN201910346009.0A CN110293317A (en) | 2019-04-26 | 2019-04-26 | A kind of gradient titanium alloy laser gain material manufacturing method of nitrogen home position strengthening |
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| CN110293317A true CN110293317A (en) | 2019-10-01 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114934251A (en) * | 2022-05-16 | 2022-08-23 | 陇东学院 | Laser gas alloying method and laser gas alloying device for metal surface |
-
2019
- 2019-04-26 CN CN201910346009.0A patent/CN110293317A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114934251A (en) * | 2022-05-16 | 2022-08-23 | 陇东学院 | Laser gas alloying method and laser gas alloying device for metal surface |
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