CN104634274A - Characterization method for laser boring shape of metal material - Google Patents
Characterization method for laser boring shape of metal material Download PDFInfo
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- CN104634274A CN104634274A CN201510026308.8A CN201510026308A CN104634274A CN 104634274 A CN104634274 A CN 104634274A CN 201510026308 A CN201510026308 A CN 201510026308A CN 104634274 A CN104634274 A CN 104634274A
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Abstract
The invention relates to a characterization method for a laser boring shape of a metal material. The characterization method comprises the following steps of flattening and smoothening the surface of the metal material, and then, boring the treated metal material by utilizing a laser device; putting the bored metal material in a crucible, then, adding paraffin blocks to the crucible, then, putting the crucible in a muffle furnace, and heating to 150 DEG C and cooling after heat preservation is performed for 30 minutes; taking out a cooled metal block and putting in a beaker, then, adding muriatic acid of which the concentration is 6-10 percent to the beaker, and waiting for the reaction until metal completely dissolves; taking out paraffin solids which do not dissolve in acid, then, putting the paraffin solids under a light microscope for observation and shooting, and finally, obtaining a three-dimensional image of the inner bore, to be observed during laser boring, of the material by adopting a multi-level image fitting method. The characterization method disclosed by the invention has the beneficial effects that the method is simple, characterization can be performed on bore diameters of various metal materials; complicated mathematical calculation is avoided; errors are reduced.
Description
Technical field
The present invention relates to a kind of characterizing method of metal material laser boring shape.
Background technology
Laser boring because its process velocity is fast, efficiency is high, good in economic efficiency, and larger aspect ratio can be obtained, directly not contact with workpiece and the little feature in heat-affected zone, be now widely used in various precision machining processes.But because the aperture of laser boring is very little, and technique, equipment are on the impact of hole quality in the process of punching, make the aperture obtained not be smooth straight hole, generalized case directly cannot obtain the image in its aperture, normally material is cut and grinding and polishing along sidewall, to obtain the section shape in hole.Or adopt multiple sheeting overlapping and compress, then punching process is carried out to it, measure the aperture of each thin slice upper and lower surface respectively and record its degree of depth, finally the data obtained are carried out Function Fitting a kind of (method of observing laser boring brittle non-metal material hole section plane shape, CN 101241002A), thus obtain the shape that laser boring will observe the hole of material.
For a kind of front method, because it is in cutting and grinding, required chronic in polishing process, and very large stress can be produced to material in the process of these processing, material itself may be caused to deform to such an extent as to have influence on the original shape in hole, thus cannot accurately aperture be characterized.For a kind of rear method, due to Material selec-tion face narrower (can only for hard brittle non-metallic material), and laser boring is applied in the manufacture field of metal material to a great extent in life, so the method cannot be adopted to verify, and the superposition of multiple thin slice can produce certain error, the accuracy of impact experiment.
Summary of the invention
The object of this invention is to provide a kind of characterizing method of metal material laser boring shape, convenient and practical.
The object of the invention is to be achieved through the following technical solutions:
A characterizing method for metal material laser boring shape, comprises the following steps:
Step one: metal material surface is carried out flat smooth process, then utilizes laser instrument to punch to the metal material handled well;
Step 2: the metal material punched is put into crucible, and then add paraffin mass in crucible, then crucible is put into muffle furnace, is warming up to 150 degrees Celsius and cooling after being incubated 30 minutes;
Step 3: taken out by cooled derby and put into beaker, then adds the hydrochloric acid that concentration is 6%-10% wherein, treats that its reaction to metal dissolves completely;
Step 4: taken out by the paraffin solid being insoluble to acid, then put to light Microscopic observation and take pictures, finally adopts multi-level image fitting process to obtain the three-dimensional image that laser boring will observe material internal orifice dimension.
Further, the volume that described paraffin is fast is 5-8 times of derby volume.
Further, described multi-level image fitting process is lay-up method.
Beneficial effect of the present invention is: characterize accurately, follow-up do not have machining, therefore intact to aperture, avoid machining and impact on aperture shape, and avoid loaded down with trivial details mathematical computations, avoid error, directly with three-dimensional plot, image by aperture internal attribute out; Not by the impact of material, the method that all metal materials can adopt this experiment to propose characterizes; Measuring Time is short, and relatively with traditional cutting and polishing technique and mathematical computations, the time wanted required for the present invention is shorter than the above two from far away.
Embodiment
Get a metal iron block, by the surface finish of metal iron block, so that laser boring subsequently can be carried out smoothly.And then laser boring is carried out to it, its aperture diameter is less than 1mm.Again the metal iron block after punching is put into crucible, and (volume of paraffin mass is 5-8 times of derby to add paraffin mass wherein, derby can be immersed completely) again crucible is put into muffle furnace, be warming up to 150 degrees Celsius and cooling after being incubated 30 minutes; Cooled derby is taken out, puts into beaker, then add the hydrochloric acid that concentration is 6%-10% wherein, treat that its reaction to metal dissolves completely; Subsequently the paraffin solid being insoluble to acid is taken out, put to basis of microscopic observation and take pictures, obtaining end and the sidepiece Local map of paraffin; Then lay-up method is adopted to obtain the end of paraffin and the overall diagram of sidepiece; And adopt lay-up method to obtain the end of paraffin and the outline map of sidepiece.Side margins figure after sidepiece figure after side margins figure after sidepiece figure after obtained paraffin mass rotation 120 degree by lay-up method, paraffin mass rotate 120 degree, paraffin mass rotate 240 degree and paraffin mass rotate 240 degree.
The interior shape in aperture significantly can be observed according to the end of the paraffin collected and sidepiece figure, learn that the inside surface of laser boring is not smooth, and have a lot of corner angle, sidepiece figure after rotating 120 degree in conjunction with paraffin mass again, side margins figure after paraffin mass rotates 120 degree, side margins figure after sidepiece figure after paraffin mass rotates 240 degree and paraffin mass rotate 240 degree, from different angles, paraffin mass is observed, more can comprehensively and exhaustively the three-dimensional plot of whole paraffin mass and outline map are displayed, also just by the aperture of laser boring without destroy and error characterize out.
The present invention is not limited to above-mentioned preferred forms; anyone can draw other various forms of products under enlightenment of the present invention; no matter but any change is done in its shape or structure; every have identical with the application or akin technical scheme, all drops within protection scope of the present invention.
Claims (3)
1. a characterizing method for metal material laser boring shape, is characterized in that, comprises the following steps:
Step one: metal material surface is carried out flat smooth process, then utilizes laser instrument to punch to the metal material handled well;
Step 2: the metal material punched is put into crucible, and then add paraffin mass in crucible, then crucible is put into muffle furnace, is warming up to 150 degrees Celsius and cooling after being incubated 30 minutes;
Step 3: taken out by cooled derby and put into beaker, then adds the hydrochloric acid that concentration is 6%-10% wherein, treats that its reaction to metal dissolves completely;
Step 4: taken out by the paraffin solid being insoluble to acid, then put to light Microscopic observation and take pictures, finally adopts multi-level image fitting process to obtain the three-dimensional image that laser boring will observe material internal orifice dimension.
2. the characterizing method of a kind of metal material laser boring shape as claimed in claim 1, is characterized in that, the fast volume of described paraffin be the 5-8 of derby volume doubly.
3. the characterizing method of a kind of metal material laser boring shape as claimed in claim 1, it is characterized in that, described multi-level 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 |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510026308.8A CN104634274B (en) | 2015-01-20 | 2015-01-20 | A kind of characterizing method of metal material laser boring shape |
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| Publication Number | Publication Date |
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| CN104634274A true CN104634274A (en) | 2015-05-20 |
| CN104634274B CN104634274B (en) | 2019-02-22 |
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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 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107860334A (en) * | 2017-11-01 | 2018-03-30 | 西北核技术研究所 | High power laser light punctures metal void shape and area real-time measurement apparatus and method |
Citations (4)
| 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 |
| 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 |
-
2015
- 2015-01-20 CN CN201510026308.8A patent/CN104634274B/en not_active Expired - Fee Related
Patent Citations (4)
| 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 |
| 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 |
|---|
| 周晨波等: ""激光打孔小孔内壁再铸层微裂纹检验方法研究（I）"", 《烟台大学学报（自然科学与工程版）》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107860334A (en) * | 2017-11-01 | 2018-03-30 | 西北核技术研究所 | High power laser light punctures metal void shape and area real-time measurement apparatus and method |
| 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 |
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| CN104634274B (en) | 2019-02-22 |
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