CN116223276A - Method for detecting wear resistance of black micro-arc oxide film of aluminum alloy workpiece - Google Patents
Method for detecting wear resistance of black micro-arc oxide film of aluminum alloy workpiece Download PDFInfo
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- CN116223276A CN116223276A CN202310258611.5A CN202310258611A CN116223276A CN 116223276 A CN116223276 A CN 116223276A CN 202310258611 A CN202310258611 A CN 202310258611A CN 116223276 A CN116223276 A CN 116223276A
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- aluminum alloy
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/56—Investigating resistance to wear or abrasion
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N19/00—Investigating materials by mechanical methods
- G01N19/02—Measuring coefficient of friction between materials
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/06—Special adaptations of indicating or recording means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/026—Specifications of the specimen
- G01N2203/0262—Shape of the specimen
- G01N2203/0278—Thin specimens
- G01N2203/0282—Two dimensional, e.g. tapes, webs, sheets, strips, disks or membranes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
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Abstract
The invention discloses a method for detecting the wear resistance of a black micro-arc oxidation film of an aluminum alloy workpiece, and the detection result is more reliable. Manufacturing an aluminum alloy test piece, and preparing a black micro-arc oxidation film on the surface of the aluminum alloy test piece; preparing a coating durability detection device, wherein the coating durability detection device is provided with a test piece clamp, a grinding head, a loading mechanism and a movement mechanism, an aluminum alloy test piece is fixed on the test piece clamp, the upper end of the movement mechanism is fixedly provided with the test piece clamp, the lower end of the loading mechanism is fixedly provided with the grinding head clamp, the grinding head is fixedly arranged at the lower end of the grinding head clamp, the grinding head is contacted with the surface of the aluminum alloy test piece, the loading mechanism is used for applying a load to the aluminum alloy test piece, the movement mechanism drives the aluminum alloy test piece to translate, the grinding head reciprocates at a set vertical load, the aluminum alloy test piece moves at a set movement frequency and a set displacement, and in the movement process, the pressure and the friction force on the surface of the aluminum alloy test piece are collected, and a friction coefficient curve is drawn; and judging the wear resistance of the black micro-arc oxidation film on the surface of the aluminum alloy workpiece through the inflection point position of the friction coefficient curve.
Description
Technical Field
The invention relates to the technical field of detection, in particular to a method for detecting wear resistance of a black micro-arc oxidation film of an aluminum alloy workpiece.
Background
After the parts are subjected to the black micro-arc oxidation process, the film hardness and the film roughness cannot directly reflect the wear resistance of the black micro-arc oxidation film, and a dynamic detection method for the wear resistance of the black micro-arc oxidation film is lacking, so that large-area wear of the parts still can occur in the use process under the condition that relevant static indexes are qualified, and the use requirement cannot be met.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a method for detecting the wear resistance of a black micro-arc oxidation film of an aluminum alloy workpiece, and the detection result is more reliable.
The purpose of the invention is realized in the following way:
a method for detecting wear resistance of a black micro-arc oxide film of an aluminum alloy workpiece comprises the following steps:
s1, manufacturing an aluminum alloy test piece, and preparing a black micro-arc oxidation film on the surface of the aluminum alloy test piece, wherein the black micro-arc oxidation film on the surfaces of the aluminum alloy test piece and an aluminum alloy workpiece are the same;
s2, preparing a coating durability detection device, wherein the coating durability detection device is provided with a test piece clamp, a grinding head, a movement mechanism and a loading deviceThe mechanism is used for fixing an aluminum alloy test piece on the test piece clamp, the upper end of the motion mechanism is fixedly provided with the test piece clamp, the lower end of the loading mechanism is fixedly provided with the grinding head clamp, the grinding head is fixedly arranged at the lower end of the grinding head clamp, the grinding head is in contact with the surface of the aluminum alloy test piece, the loading mechanism is used for applying a load to the aluminum alloy test piece, the motion mechanism drives the aluminum alloy test piece to translate, the grinding head reciprocates at a set motion frequency and a set displacement, and in the motion process of the grinding head, the pressure and the friction force on the surface of the aluminum alloy test piece are collected according to a formula
Drawing a friction coefficient curve;
s2, judging the wear resistance of the black micro-arc oxidation film on the surface of the aluminum alloy workpiece through the inflection point position of the friction coefficient curve.
Preferably, in the step S1, the surface roughness of the aluminum alloy test piece and the aluminum alloy workpiece is the same, and the black micro-arc oxide film is prepared in the same groove.
Preferably, the coating durability detection device comprises a frame, wherein the lower end of the frame is a workbench, the movement mechanism is fixed on the workbench, the test piece clamp is fixed on the movement mechanism, and the loading mechanism is arranged at the upper end of the frame.
Preferably, the loading mechanism is provided with a sensor, the sensor comprises a pressure sensor and a friction sensor which are connected with a computer, and the sensor collects the pressure and the friction force on the surface of the aluminum alloy test piece according to a formula
And the computer outputs a friction coefficient curve to carry out normalization, summarization and research on test data.
Preferably, the grinding head adopts tungsten steel ball with the diameter of 6mm and the hardness of 95 HRC.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
1. the summarization and classification of the detection data are standardized.
2. Reducing reworking of parts and improving qualification rate.
3. The data analysis, the data summarization and the data classification are easier to carry out through the standardization and the massive summarization of the data, and the detection standard is easy to form.
4. The friction performance of the parts can be directly reflected;
drawings
FIG. 1 is a schematic illustration of the detection of the present invention;
fig. 2 is an output graph of the present invention.
Reference numerals
In the drawing, a grinding head clamp 1, a grinding head clamp 2, a grinding head 3, an aluminum alloy black micro-arc test piece, a 4 y-axis friction coefficient, a 5 friction coefficient inflection point, a 6 x-axis time, a sensor 7, a computer 8, a loading mechanism 9, a moving mechanism 10, a servo motor 11 and a clamp 12 are shown in the drawing.
Detailed Description
As shown in FIG. 1, an embodiment of a method for detecting the wear resistance of a black micro-arc oxidation film of an aluminum alloy workpiece is provided, wherein an aluminum alloy test piece is firstly manufactured in a trial mode, the surface roughness of the test piece reaches the surface roughness of an aluminum alloy workpiece blank, a same-groove black micro-arc oxidation process is carried out, the test piece is clamped on a clamp to enable the test piece to be immovable, a grinding head (tungsten steel beads) is enabled to be in contact with the test piece, a certain load is applied to the test piece, a movement frequency and a certain working distance are input, a friction coefficient curve is output by a computer after the test is finished, and the wear resistance of the test piece can be judged according to the time corresponding to an inflection point appearing on the curve.
The loading and moving mechanisms 9 and 10 can directly input loading force, moving frequency and working distance, so that the stability of experimental data is ensured.
The computer 8 can directly output friction coefficient curves to carry out normalization, summarization and research on test data.
The detection method mainly comprises the steps of inputting a certain load, a certain movement frequency and a proper amount of working distance, carrying out contact type linear reciprocating motion on an aluminum alloy test piece subjected to black micro-arc oxidation treatment, and analyzing according to a friction coefficient curve output by a sensor, wherein the friction coefficient is only related to materials and roughness, so that an inflection point appears on the friction coefficient curve, and the appearance of the inflection point refers to the time of complete abrasion of a black micro-arc oxidation film, so that the abrasion resistance of the black micro-arc oxidation film can be reflected.
Finally, it is noted that the above-mentioned preferred embodiments are only intended to illustrate rather than limit the invention, and that, although the invention has been described in detail by means of the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the invention as defined by the appended claims.
Claims (5)
1. The method for detecting the wear resistance of the black micro-arc oxide film of the aluminum alloy workpiece is characterized by comprising the following steps of:
s1, manufacturing an aluminum alloy test piece, and preparing a black micro-arc oxidation film on the surface of the aluminum alloy test piece, wherein the black micro-arc oxidation film on the surfaces of the aluminum alloy test piece and an aluminum alloy workpiece are the same;
s2, preparing a coating durability detection device, wherein the coating durability detection device is provided with a test piece clamp, a grinding head, a movement mechanism and a loading mechanism, an aluminum alloy test piece is fixed on the test piece clamp, the grinding head is in contact with the surface of the aluminum alloy test piece, a set vertical load is applied to the aluminum alloy test piece through the loading mechanism, the movement mechanism drives the aluminum alloy test piece to reciprocate at a set movement frequency and displacement, and in the movement process, the friction coefficient of the surface of the aluminum alloy test piece is acquired and calculated, and a friction coefficient curve is drawn;
s2, judging the wear resistance of the black micro-arc oxidation film on the surface of the aluminum alloy workpiece through the inflection point position of the friction coefficient curve.
2. The method for detecting the wear resistance of the black micro-arc oxidation film of the aluminum alloy workpiece according to claim 1, which is characterized by comprising the following steps: in the step S1, the surface roughness of the aluminum alloy test piece is the same as that of the aluminum alloy workpiece, and a black micro-arc oxide film is prepared in the same groove.
3. The method for detecting the wear resistance of the black micro-arc oxidation film of the aluminum alloy workpiece according to claim 1, which is characterized by comprising the following steps: the coating durability detection device comprises a frame, wherein the lower end of the frame is a workbench, a movement mechanism is fixed on the workbench, a test piece clamp is fixed on the movement mechanism, a loading mechanism is arranged at the upper end of the frame, a grinding head clamp is arranged at the lower end of the loading mechanism, and a grinding head is fixed at the lower end of the grinding head clamp.
4. The method for detecting the wear resistance of the black micro-arc oxidation film of the aluminum alloy workpiece according to claim 1, which is characterized by comprising the following steps: the loading mechanism is provided with a pressure sensor and a friction sensor, the pressure sensor and the friction sensor are connected with a computer, the pressure sensor and the friction sensor collect pressure and friction force born by the surface of the aluminum alloy test piece, and the computer acquires the pressure and the friction force born by the surface of the aluminum alloy test piece according to a formula
And obtaining the friction coefficient of the surface of the aluminum alloy test piece and drawing a friction coefficient curve.
5. The method for detecting the wear resistance of the black micro-arc oxidation film of the aluminum alloy workpiece according to claim 1, which is characterized by comprising the following steps: the grinding head adopts tungsten steel ball with the hardness of 95 HRC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310258611.5A CN116223276A (en) | 2023-03-17 | 2023-03-17 | Method for detecting wear resistance of black micro-arc oxide film of aluminum alloy workpiece |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310258611.5A CN116223276A (en) | 2023-03-17 | 2023-03-17 | Method for detecting wear resistance of black micro-arc oxide film of aluminum alloy workpiece |
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| CN116223276A true CN116223276A (en) | 2023-06-06 |
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| CN202310258611.5A Pending CN116223276A (en) | 2023-03-17 | 2023-03-17 | Method for detecting wear resistance of black micro-arc oxide film of aluminum alloy workpiece |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117405548A (en) * | 2023-12-15 | 2024-01-16 | 江苏星波轻材新材料有限公司 | Detection device for aluminum alloy product |
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2023
- 2023-03-17 CN CN202310258611.5A patent/CN116223276A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117405548A (en) * | 2023-12-15 | 2024-01-16 | 江苏星波轻材新材料有限公司 | Detection device for aluminum alloy product |
| CN117405548B (en) * | 2023-12-15 | 2024-04-19 | 江苏星波轻材新材料有限公司 | Detection device for aluminum alloy product |
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