CN203144514U - Permanent-magnet type electromagnetic stirring device for titanium alloy laser repair - Google Patents
Permanent-magnet type electromagnetic stirring device for titanium alloy laser repair Download PDFInfo
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- CN203144514U CN203144514U CN 201320092863 CN201320092863U CN203144514U CN 203144514 U CN203144514 U CN 203144514U CN 201320092863 CN201320092863 CN 201320092863 CN 201320092863 U CN201320092863 U CN 201320092863U CN 203144514 U CN203144514 U CN 203144514U
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Abstract
The utility model discloses a permanent-magnet type electromagnetic stirring device for titanium alloy laser repair. The permanent-magnet type electromagnetic stirring device for titanium alloy laser repair comprises a rotary disc, a stepper motor, a synchronous belt wheel, a powder feeding head, magnet boxes and permanent magnets, wherein the powder feeding head penetrates through the centre of the rotary disc; the stepper motor is connected with the shaft of the rotary disc via the synchronous belt wheel; and the magnet boxes and the permanent magnets are uniformly distributed on the lower surface of the rotary disc and close to the edge. The permanent-magnet type electromagnetic stirring device for titanium alloy laser repair disclosed by the utility model is free from the constraint of the size of the to-be-repaired workpiece, and beneficial to increasing the magnetic field intensity of the surrounding of a molten pool; the magnetic field intensity of the electromagnetic stirring device is adjustable in a range of 0-100 mT, the magnetic field rotation speed is adjustable in a range of 0-2000 rmp, and an approximately uniform magnetic field can be generated in a central area; and stirring with different stirring intensities and different stirring speeds for a metal solution can be realized by changing the positions of the magnet boxes on the rotary disc and the rotational speed of the motor, and then different laser repair effects can be obtained.
Description
Technical field:
The utility model relates to a kind of electromagnetic mixing apparatus, particularly a kind of titanium alloy laser repairing permanent-magnet electromagnetic whipping appts.
Background technology:
Characteristics such as intensity height, solidity to corrosion are good, thermotolerance height are widely used in every field such as aerospace, weapon, nuclear energy, chemical industry, medical science to titanium alloy because having.The processing performance of titanium alloy is poor, and the machining difficulty in hot-work, is very easy to absorb impurity such as hydrogen-oxygen nitrogen carbon.Also have resistance to abrasion poor, complex manufacturing.
In the titanium alloy component manufacturing processed, a large amount of processing errors occurs through regular meeting, or part under arms with in the use inefficacies such as crackle, burn into wearing and tearing appears.The titanium alloy important spare part is worth tens thousand of units at least, and is hundreds thousand of at most, even unit up to a million.In case scrap process for processing again, to producing and the scientific research progress can constitute and has a strong impact on, cause huge financial loss.Therefore, efficient, the high performance recovery technique of titanium alloy component is the key issue of demanding urgently.Utilize the laser fast forming recovery technique, at the geometrical defect in the titanium alloy main force support structure spare course of processing, or the fault that occurs under arms, repair principle of design by intensity, rigidity, life-span or the function etc. of appointment, realize the quick reparation of member.Can recover to be worth expensive overproof titanium alloy product, reduce huge financial loss, can guarantee simultaneously to produce and the lead time, have great using value, its economic benefit is very remarkable.The ultimate principle of this technology is: utilize high energy laser beam at metallic surface irradiation, simultaneously send into metal-powder to laser molten pool, by rapid fusing, expansion with solidify rapidly, form with it in substrate surface and to add the material settled layer for metallurgical binding.Said process fills up given two-dimensional shapes according to fill path pointwise on part position to be repaired of setting, repeats this process and successively piles up and finish the part reparation.In titanium alloy laser deposition repair process, pore, crackle, the microstructure skewness, crystallization is not obvious, and grain-size is thick to be the major reason that influences repairing quality, in order to improve repairing effect, improve repairing quality, usually by adding some specific alloy element or oxide compound, or suppress or improve above defective by optimizing measures such as titanium alloy laser deposition renovation technique, but above measure is to improving achieving no breakthrough property of repair layer quality progress.In order to improve laser repairing layer internal soundness, an important thinking is that hard evenly distributes mutually in managing to make repair layer, and electromagnetic agitating technology can well be realized this thinking.The rotatingfield that agitator produces acts on the molten metal that dissolves, produce induced current therein, the magnetic field interaction that this electric current produces with agitator again and then produce electromagnetic force, electromagnetic force promotes the molten metal rotation, can impel separating out of bubble impurity in the metallic solution, reduce the thermograde of molten metal, make in the molten bath species distribution more even.Because the molten bath that laser deposition is repaired is little, the molten bath fusion time is short, the electromagnetism intensity that needs is stronger, common whipping device is difficult to meet the demands, common exchange current formula magnetic stirrer apparatus expensive in addition, complex structure, it is bigger to take up room, the limited workpiece that can only place suitable size in tradition permanent-magnet electromagnetic whipping appts laser repairing space, this has all limited the application in test of exchange current formula magnetic stirrer.The utility model is a compact construction, and is with low cost, the permanent-magnet electromagnetic whipping appts of stable performance, this apparatus structure form is not subjected to workpiece size constraint to be repaired, have simple in structure, size is little, the characteristics that are easy to use.
The utility model content:
At above-mentioned the deficiencies in the prior art, the utility model provides a kind of compact construction, stable performance, satisfy the space requirement that test is installed, and can produce all adjustable approximate uniform magnetic fields of intensity and speed in the work area, and do not repaired the restriction of workpiece size, can well be brought into play stirring effectiveness, improved the problem mentioned in the technical background and the titanium alloy laser repairing permanent-magnet electromagnetic whipping appts of defective.
For achieving the above object, the technical solution adopted in the utility model is: a kind of titanium alloy laser repairing permanent-magnet electromagnetic whipping appts comprises rotating disk, stepper-motor, synchronous pulley, powder-feeding head, magnetic box and permanent magnet.Powder-feeding head passes the center of rotating disk.Stepper-motor is connected with the axle of rotating disk by synchronous pulley.Magnetic box and permanent magnet are distributed on the disk lower surface place that keeps to the side.
Preferably, be provided with shield cap between permanent magnet and the powder-feeding head.The thermal source of system mainly is laser, and the bright shell of shield cap can reflect a large amount of laser, and avoids rotary magnet to cause flowing of shielding gas.
The utility model is not subjected to workpiece size constraint to be repaired, is conducive to improve molten bath magneticstrength on every side simultaneously.The magneticstrength of electromagnetic mixing apparatus is that 0-100mT is adjustable, and the magnetic field speed of rotation is that 0-2000rmp is adjustable, and can produce approximate uniform magnetic field in the central zone.Just can realize metallic solution is stirred with different stirring intensities and stir speed (S.S.) with motor speed by changing the position of magnetic box on rotating disk, and then obtain different laser repairing effects.
Description of drawings:
Fig. 1 is the synoptic diagram of the utility model structure.
Fig. 2 is the distribution of magnets figure on the rotating disk.
Fig. 3 is that the utility model is to heat-affected zone action effect figure.
Fig. 4 is that the utility model is to repair layer microstructure action effect figure.
Fig. 5 is that the utility model is to the stomatal action design sketch.
Embodiment:
As depicted in figs. 1 and 2: a kind of titanium alloy laser repairing permanent-magnet electromagnetic whipping appts comprises rotating disk 1, stepper-motor 2, synchronous pulley 3, powder-feeding head 5, magnetic box 5 and permanent magnet 6.Powder-feeding head 5 passes the center of rotating disk 1.Stepper-motor 2 is connected with the axle of rotating disk 1 by synchronous pulley 3.Magnetic box 5 and permanent magnet 6 are distributed on the rotating disk 1 lower surface place that keeps to the side.Be provided with shield cap 8 between permanent magnet 6 and the powder-feeding head 5.Entire mechanism is in the upper end of workpiece 7.Stepper-motor 2 drives rotating disk 1 by synchronous pulley 3 and rotates, thereby drives magnetic box 5 and permanent magnet 6 rotations, thereby forms rotatingfield in the space.Have slide rail on the rotating disk, the magnetic box and can in slide rail, slide and adjust the magneticstrength in zone, molten bath with the space length of adjusting two corresponding magnet thereby magnet is packed into; The titanium alloy laser repairing is finished at workpiece, and workpiece 7 is fixed on the worktable, and size and the slewing rate of rotatingfield just can be adjusted in the rotating speed and the position of magnetic box 5 on rotating disk 1 that change rotating disk 1, thereby obtain different mixing effects.
As shown in Figure 3: the metallograph that does not have induction stirring when (a) district is for the titanium alloy laser repairing, (b) district is for there being the metallograph of induction stirring, the utility model can make the heat-affected zone more even, increase its sphere of action and to the workpiece infiltration, improved the bonding force of repair layer and workpiece to a certain extent.
As shown in Figure 4: the metallograph that does not have induction stirring when (a) district is for the titanium alloy laser repairing, (b) district is for there being the metallograph of induction stirring, the utility model can significantly improve the repair layer microstructure, it is more evenly distributed, organize nucleation rate to increase, boundary is broken, crystal grain thinning, and impel repair layer to be decomposed gradually by martensite α ' to change secondary α phase into.
As shown in Figure 5: the metallograph that does not have induction stirring when (a) district is for the titanium alloy laser repairing, (b) district is for there being the metallograph of induction stirring, the pore of the utility model energy good restraining titanium alloy powder laser repairing layer also makes its granular, is conducive to improve the mechanical property of material.
Claims (2)
1. a titanium alloy laser repairing permanent-magnet electromagnetic whipping appts is characterized in that: comprise rotating disk, stepper-motor, synchronous pulley, powder-feeding head, magnetic box and permanent magnet; Powder-feeding head passes the center of rotating disk, and stepper-motor is connected by the axle of synchronous pulley and rotating disk, and magnetic box and permanent magnet are distributed on the disk lower surface place that keeps to the side.
2. a kind of titanium alloy laser repairing permanent-magnet electromagnetic whipping appts as claimed in claim 1 is characterized in that: be provided with shield cap between permanent magnet and the powder-feeding head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320092863 CN203144514U (en) | 2013-02-27 | 2013-02-27 | Permanent-magnet type electromagnetic stirring device for titanium alloy laser repair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320092863 CN203144514U (en) | 2013-02-27 | 2013-02-27 | Permanent-magnet type electromagnetic stirring device for titanium alloy laser repair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203144514U true CN203144514U (en) | 2013-08-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320092863 Expired - Fee Related CN203144514U (en) | 2013-02-27 | 2013-02-27 | Permanent-magnet type electromagnetic stirring device for titanium alloy laser repair |
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| CN (1) | CN203144514U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103273201A (en) * | 2013-02-27 | 2013-09-04 | 沈阳航空航天大学 | Permanent-magnet electromagnetic stirring device for titanium alloy laser repair |
| CN105689711A (en) * | 2016-02-04 | 2016-06-22 | 大连理工大学 | Process for laser rapid forming for nickel-based alloy parts through electromagnetic stirring assistance |
| CN108067148A (en) * | 2016-11-11 | 2018-05-25 | 江苏睿阳精密工业股份有限公司 | A kind of permanent magnetism agitating apparatus for metal semi-solid slurrying |
-
2013
- 2013-02-27 CN CN 201320092863 patent/CN203144514U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103273201A (en) * | 2013-02-27 | 2013-09-04 | 沈阳航空航天大学 | Permanent-magnet electromagnetic stirring device for titanium alloy laser repair |
| CN105689711A (en) * | 2016-02-04 | 2016-06-22 | 大连理工大学 | Process for laser rapid forming for nickel-based alloy parts through electromagnetic stirring assistance |
| CN108067148A (en) * | 2016-11-11 | 2018-05-25 | 江苏睿阳精密工业股份有限公司 | A kind of permanent magnetism agitating apparatus for metal semi-solid slurrying |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130821 Termination date: 20150227 |
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| EXPY | Termination of patent right or utility model |