CN104634274B - A kind of characterizing method of metal material laser boring shape - Google Patents
A kind of characterizing method of metal material laser boring shape Download PDFInfo
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- CN104634274B CN104634274B CN201510026308.8A CN201510026308A CN104634274B CN 104634274 B CN104634274 B CN 104634274B CN 201510026308 A CN201510026308 A CN 201510026308A CN 104634274 B CN104634274 B CN 104634274B
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- metal material
- metal
- crucible
- laser boring
- paraffin
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Abstract
The present invention relates to a kind of characterizing methods of metal material laser boring shape, comprising the following steps: metal material surface is carried out flat and smooth processing, is then punched using laser to the metal material handled well；The metal material punched is put into crucible, paraffin mass is then added into crucible again, then crucible is put into Muffle furnace, it is cooling after being warming up to 150 degrees Celsius and keeping the temperature 30 minutes；Metal block after cooling is removed and placed in beaker, the hydrochloric acid that concentration is 6%-10% is then added thereto, is completely dissolved to its reaction to metal；Paraffin solid insoluble in acid is taken out, then put to light under the microscope and is taken pictures, the three-dimensional image of the laser boring material observed internal orifice dimension is finally obtained using multi-level image fitting process.The invention has the benefit that method is simple, various metals material aperture can be characterized, avoid cumbersome mathematical computations, reduce error.
Description
Technical field
The present invention relates to a kind of characterizing methods of metal material laser boring shape.
Background technique
Laser boring can obtain biggish aspect ratio because of its process velocity is fast, high-efficient, good in economic efficiency, with
Workpiece has been widely used in various precision machining processes without the feature directly contacted and heat-affected zone is small.But due to
The aperture very little of laser boring, and punch during technique, equipment device to hole quality influence, the aperture made is not light
Sliding straight hole, ordinary circumstance can not directly obtain the image in its aperture, and material is usually cut simultaneously grinding and polishing along side wall, with
Obtain the section shape in hole.It is either overlapped and compresses using multiple sheetings, punching processing then is carried out to it, is surveyed respectively
It measures the aperture of each thin slice upper and lower surface and records its depth, obtained data are finally carried out Function Fitting, and (a kind of observation is sharp
The method that light punches brittle non-metal material hole section plane shape, CN 101241002A), to obtain laser boring to be seen
Examine the shape in the hole of material.
For former approach, due to its cut and grind, the required time is very long in polishing process, and this
Very big stress can be generated during a little processing to material, material itself is may cause and deforms so that influencing hole sheet
The shape come, to can not accurately characterize aperture.For later approach, since material selects face is relatively narrow (can only
For hard brittle non-metallic material), and the manufacture field in metal material is largely applied in laser boring in life, institute
This method can not be used to be verified, and the superposition of multiple thin slices can generate certain error, influence the accuracy of experiment.
Summary of the invention
It is convenient and practical the object of the present invention is to provide a kind of characterizing method of metal material laser boring shape.
The purpose of the present invention is be achieved through the following technical solutions:
A kind of characterizing method of metal material laser boring shape, comprising the following steps:
Step 1: metal material surface is subjected to flat and smooth processing, then using laser to the metal material handled well
Material is punched；
Step 2: the metal material punched is put into crucible, is then added paraffin mass into crucible again, then by earthenware
Crucible is put into Muffle furnace, cooling after being warming up to 150 degrees Celsius and keeping the temperature 30 minutes；
Step 3: metal block after cooling is removed and placed in beaker, and it is 6%-10% that concentration is then added thereto
Hydrochloric acid, be completely dissolved to its reaction to metal；
Step 4: the paraffin solid insoluble in acid is taken out, and is then put to light under the microscope and is taken pictures, finally uses multilayer
Secondary image fitting process obtains the three-dimensional image of the laser boring material observed internal orifice dimension.
Further, the fast volume of the paraffin is 5-8 times of metal block volume.
Further, the multi-level image fitting process is lay-up method.
The invention has the benefit that characterization is accurate, it is subsequent not to be machined, therefore to the intact of aperture, it avoids
Machining and the influence to aperture shape, and cumbersome mathematical computations are avoided, error is avoided, directly with three-dimensional
Figure, it is vivid to come out aperture internal attribute；It is not influenced by material, all metal materials can be mentioned using this experiment
Method out is characterized；Time of measuring is short, opposite with traditional cutting and polishing technique and mathematical computations, required for the present invention
Time from far away shorter than the above two.
Specific embodiment
A metal iron block is taken, by metal iron block surface polishing, so that subsequent laser boring can be carried out smoothly.Then
Laser boring is carried out to it again, aperture diameter is less than 1mm.The metal iron block after punching is put into crucible again, and thereto
Paraffin mass (volume of paraffin mass is 5-8 times of metal block, to be completely immersed in metal block wherein) is added again to put crucible
Enter in Muffle furnace, it is cooling after being warming up to 150 degrees Celsius and keeping the temperature 30 minutes；Metal block after cooling is taken out, is put into beaker,
Then the hydrochloric acid that concentration is 6%-10% is added thereto, is completely dissolved to its reaction to metal；Then by the stone insoluble in acid
Wax solid takes out, and puts to microscopically observation and takes pictures, obtains end and the side Local map of paraffin；Then it is obtained using lay-up method
To the end of paraffin and the overall diagram of side；And the end of paraffin and the edge graph of side are obtained using lay-up method.By folded
Side margins figure, paraffin mass rotation 240 after layer method obtains the side figure after paraffin mass rotates 120 degree, paraffin mass rotates 120 degree
Side figure and paraffin mass after degree rotate the side margins figure after 240 degree.
The interior shape that aperture can be significantly observed according to the end of collected paraffin and side figure, learns laser
The inner surface of punching is not smooth, and has many corner angle, side figure, paraffin after rotating 120 degree in conjunction with paraffin mass
Side margins figure, the side figure after 240 degree of paraffin mass rotation and paraffin mass after block rotates 120 degree rotate the side after 240 degree
Portion's edge graph, is from different angles observed paraffin mass, more can be comprehensively and exhaustively by the three-dimensional figure of entire paraffin mass
It is shown with edge graph, also just by the aperture of laser boring without destroying and error characterizes out.
The present invention is not limited to above-mentioned preferred forms, anyone can show that other are various under the inspiration of the present invention
The product of form, however, make any variation in its shape or structure, it is all that there is skill identical or similar to the present application
Art scheme, is within the scope of the present invention.
Claims (2)
1. a kind of characterizing method of metal material laser boring shape, which comprises the following steps:
Step 1: carrying out flat and smooth processing for metal material surface, then using laser to the metal material handled well into
Row punching；
Step 2: the metal material punched is put into crucible, and paraffin mass is then added into crucible again, paraffin mass
Volume is 5-8 times of metal block volume, then crucible is put into Muffle furnace, cold after being warming up to 150 degrees Celsius and keeping the temperature 30 minutes
But；
Step 3: metal block after cooling is removed and placed in beaker, and the salt that concentration is 6%-10% is then added thereto
Acid is completely dissolved to its reaction to metal；
Step 4: the paraffin solid insoluble in acid is taken out, and is then put to light under the microscope and is taken pictures, finally using multi-level figure
As fitting process obtains the three-dimensional image of the laser boring material observed internal orifice dimension.
2. a kind of characterizing method of metal material laser boring shape as described in claim 1, which is characterized in that the multilayer
Secondary image fitting process is lay-up method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510026308.8A CN104634274B (en) | 2015-01-20 | 2015-01-20 | A kind of characterizing method of metal material laser boring shape |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510026308.8A CN104634274B (en) | 2015-01-20 | 2015-01-20 | A kind of characterizing method of metal material laser boring shape |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104634274A CN104634274A (en) | 2015-05-20 |
| CN104634274B true CN104634274B (en) | 2019-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510026308.8A Expired - Fee Related CN104634274B (en) | 2015-01-20 | 2015-01-20 | A kind of characterizing method of metal material laser boring shape |
Country Status (1)
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107860334B (en) * | 2017-11-01 | 2019-12-06 | 西北核技术研究所 | high-power laser breakdown metal hole shape and area real-time measurement device and method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101241002A (en) * | 2008-03-14 | 2008-08-13 | 北京工业大学 | Method for observing laser boring brittle non-metal material hole section plane shape |
| CN103143841A (en) * | 2013-03-08 | 2013-06-12 | 西北工业大学 | Method for hole machining with picosecond laser |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001121279A (en) * | 1999-10-26 | 2001-05-08 | Ibiden Co Ltd | Laser working apparatus with shape inspecting function |
| JP2005214752A (en) * | 2004-01-29 | 2005-08-11 | Orc Mfg Co Ltd | Laser beam measurement apparatus |
-
2015
- 2015-01-20 CN CN201510026308.8A patent/CN104634274B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101241002A (en) * | 2008-03-14 | 2008-08-13 | 北京工业大学 | Method for observing laser boring brittle non-metal material hole section plane shape |
| CN103143841A (en) * | 2013-03-08 | 2013-06-12 | 西北工业大学 | Method for hole machining with picosecond laser |
Non-Patent Citations (1)
| Title |
|---|
| "激光打孔小孔内壁再铸层微裂纹检验方法研究（I）";周晨波等;《烟台大学学报（自然科学与工程版）》;19990731;第12卷(第3期);第203-207页 |
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| CN104634274A (en) | 2015-05-20 |
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Granted publication date: 20190222 Termination date: 20200120 |