CN112198114A - Method for improving multi-angle grinding experiment precision of carbon fiber composite material - Google Patents
Method for improving multi-angle grinding experiment precision of carbon fiber composite material Download PDFInfo
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- CN112198114A CN112198114A CN202011068449.3A CN202011068449A CN112198114A CN 112198114 A CN112198114 A CN 112198114A CN 202011068449 A CN202011068449 A CN 202011068449A CN 112198114 A CN112198114 A CN 112198114A
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- 238000000227 grinding Methods 0.000 title claims abstract description 111
- 238000000034 method Methods 0.000 title claims abstract description 41
- 238000002474 experimental method Methods 0.000 title claims abstract description 40
- 239000002131 composite material Substances 0.000 title claims abstract description 24
- 229920000049 Carbon (fiber) Polymers 0.000 title claims abstract description 23
- 239000004917 carbon fiber Substances 0.000 title claims abstract description 23
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 22
- 238000012545 processing Methods 0.000 claims abstract description 38
- 230000008569 process Effects 0.000 claims abstract description 15
- 238000003754 machining Methods 0.000 claims abstract description 6
- 238000004458 analytical method Methods 0.000 claims abstract description 4
- 238000012360 testing method Methods 0.000 claims description 10
- 229910003460 diamond Inorganic materials 0.000 claims description 4
- 239000010432 diamond Substances 0.000 claims description 4
- 238000007781 pre-processing Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000011825 aerospace material Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
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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
- G01N19/06—Investigating by removing material, e.g. spark-testing
Abstract
A method for improving the multi-angle grinding experiment precision of a carbon fiber composite material. The method comprises the steps of processing a carbon fiber composite material into a plate-shaped sample with a regular polygon cross section, and fixing the plate-shaped sample on a force measuring device of a numerical control machine tool by utilizing a positioning hole; setting processing paths and processing parameters of the grinding wheel on a numerical control machine tool, sequentially finishing grinding of all the processing paths along the outer contour line of the plate-shaped sample by using the grinding wheel, and recording a complete grinding force signal by using a force measuring device in the grinding process; and calculating the grinding force under various grinding angle changes through comprehensive analysis of the grinding force signals of all the machining paths, and comparing and detecting the machining quality of different machined surfaces. The invention can flexibly adjust the number of the regular polygons according to the experimental subdivision requirements, and grinding force and surface quality characteristics processed along each direction can be completely obtained by one-time feeding of the grinding wheel through the grinding experiment along the edges of the regular polygons, thereby quickly and accurately completing the experiment, saving the experiment times and improving the experiment precision.
Description
Technical Field
The invention belongs to the technical field of aviation precision manufacturing and processing, and particularly relates to a method for improving the multi-angle grinding experiment precision of a carbon fiber composite material.
Background
With the development of aerospace technology, how to reduce the processing cost of aircraft parts and improve the processing efficiency of aviation materials becomes an important issue in the aviation industry. In the process of processing and manufacturing aerospace materials, aiming at the anisotropic composite material reinforced/toughened by fibers, the fiber weaving structure is more complex and the processing cost is too high, thereby seriously restricting the development of the aerospace manufacturing technology. The grinding processing experiment is an important test means for researching the machining performance of the difficult-to-process material. In the research process, a mechanical processing experiment is generally needed to be carried out on the surface of the material, and the influence mechanism of the cutting force and the surface quality in the anisotropic material processing process is researched through the change of various grinding angles.
The traditional experimental method generally needs to prepare experimental sample blocks with various quantities and angles, the sample preparation is complex, and the experimental process is complicated. In addition, in the traditional experiment process, the positioning, clamping, tool setting and trial cutting of the sample need to be repeated so as to complete the test experiment of each angle. Obviously, the experimental method has more interference factors and larger personal errors in the experiment, and the experimental data has larger fluctuation and more difficult experimental analysis in the subsequent data analysis.
Disclosure of Invention
In order to solve the above problems, the present invention aims to provide a method for improving the multi-angle grinding experiment precision of carbon fiber composite materials.
In order to achieve the purpose, the method for improving the multi-angle grinding experiment precision of the carbon fiber composite material comprises the following steps which are carried out in sequence:
1) the method comprises the following steps of pre-processing a carbon fiber composite material into a plate-shaped sample with a regular polygon cross section, simultaneously processing a positioning hole in the middle of the sample, and fixing the plate-shaped sample on a force measuring device of a numerical control machine tool by using the positioning hole;
2) setting processing paths and processing parameters of the grinding wheel on a numerical control machine tool, then sequentially finishing grinding of all the processing paths along the outer contour line of the plate-shaped sample by using the grinding wheel, and recording a complete grinding force signal by using a force measuring device in the grinding process;
3) and calculating the grinding force under various grinding angle changes by comprehensively analyzing the grinding force signals of each processing path, taking down the plate-shaped sample, comparing and detecting the processing quality of different processing surfaces, and finally completing the multi-angle grinding test experiment of the carbon fiber composite material.
In step 1), the number of edges of the regular polygon is represented by a formula
And calculating, wherein theta is a subdivided angle of the grinding experiment.
In the step 2), each side surface of the plate-shaped sample is a processing path; the grinding wheel is temporarily stopped feeding at the junction of two adjacent machining paths for 3-5 seconds so as to ensure that the grinding force signal has clear boundary.
In the step 2), the grinding wheel is a cup-shaped diamond grinding wheel, the mesh number of the grinding wheel is 170/200 meshes, the grinding depth is less than 20 mu m, the feeding speed is not more than 7m/min, and the grinding speed is 15-50 m/s.
In the step 2), the grinding process of the grinding wheel comprises forward grinding and reverse grinding; grinding angles include, but are not limited to, 0 °, 30 °, 45 °, 60 °, 90 °, 120 °, 135 °, 180 °.
The method for improving the multi-angle grinding experiment precision of the carbon fiber composite material has the advantages and positive effects that: according to different experiment requirements, the grinding angle is subdivided through the specially designed regular polygon experiment feed path, so that grinding test experiments in various angle ranges can be carried out simultaneously. By adopting the method, taking a regular octagon grinding test path as an example, the cup-shaped diamond grinding wheel can completely obtain the grinding force and surface quality characteristics in the grinding directions of 0 degree, 45 degrees, 90 degrees, 135 degrees, 180 degrees and the like and in the forward grinding and reverse grinding processes through a grinding experiment along the edge of a regular polygon by one-time feeding. According to the method, different regular polygon samples can be adopted according to experiment requirements, grinding angles concerned by gravity are subdivided, and accordingly grinding experiment tests in various angle ranges are achieved. The experimental method can finish the grinding processing experimental tests of various angles by only preparing one sample, actually combines the grinding testing experiment and the experimental sample, avoids the artificial errors caused in the processes of repeated positioning, clamping and grinding wheel tool setting of the sample in the experiment, and greatly improves the experimental precision and efficiency.
Drawings
FIG. 1 is a flow chart of a method for improving multi-angle grinding experiment precision of a carbon fiber composite material provided by the invention.
FIG. 2 is a schematic diagram of an experimental process when the method for improving the multi-angle grinding experimental precision of the carbon fiber composite material provided by the invention is adopted.
1-grinding wheel, 2-positioning hole, 3-carbon fiber composite material and 4-grinding wheel feed track
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without any creative efforts shall fall within the protection scope of the present invention.
As shown in FIG. 1 and FIG. 2, the method for improving the multi-angle grinding experiment precision of the carbon fiber composite material provided by the invention comprises the following steps in sequence:
1) the method comprises the following steps of pre-processing a carbon fiber composite material into a plate-shaped sample 3 with a regular polygon cross section, simultaneously processing a positioning hole 2 in the middle, and fixing the plate-shaped sample 3 on a force measuring device of a numerical control machine tool by using the positioning hole 2; the number of the edges of the regular polygon is represented by a formula
And calculating, wherein theta is a subdivided angle of the grinding experiment.
2) Setting processing paths and processing parameters of the grinding wheel 1 on a numerical control machine tool, then sequentially finishing grinding of all the processing paths by using the grinding wheel 1 along an outer contour line of a plate-shaped sample 3, namely a grinding wheel feed track 4 in fig. 2, and recording a complete grinding force signal by using a force measuring device in the grinding process; each side surface of the plate-shaped sample 3 is a processing path; the grinding wheel 1 is suspended to feed for 3-5 seconds at the junction of two adjacent machining paths so as to ensure that the grinding force signals have clear boundaries. The grinding wheel 1 is a cup-shaped diamond grinding wheel, the mesh number of the grinding wheel is 170/200 meshes, the grinding depth is less than 20 mu m, the feeding speed is not more than 7m/min, and the grinding speed is 15-50 m/s. The grinding process of the grinding wheel 1 comprises forward grinding and reverse grinding; grinding angles include, but are not limited to, 0 °, 30 °, 45 °, 60 °, 90 °, 120 °, 135 °, 180 °. In the present embodiment, a total of eight processing paths are set on the plate-shaped sample 3 with the regular octagonal cross section, and simultaneously, the milling angles of 0 °, 45 °, 90 °, 135 ° and 180 ° are covered;
3) the grinding force under various grinding angle changes is calculated through comprehensive analysis of grinding force signals of various processing paths, the plate-shaped sample 3 is taken down, the processing quality of different processing surfaces is contrasted and detected, and finally, a multi-angle grinding test experiment of the carbon fiber composite material is completed.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and any minor modifications, equivalent replacements and improvements made to the above embodiment according to the technical spirit of the present invention should be included in the protection scope of the technical solution of the present invention.
Claims (5)
1. The method for improving the multi-angle grinding experiment precision of the carbon fiber composite material is characterized by comprising the following steps of: which comprises the following steps carried out in sequence:
1) the method comprises the following steps of pre-processing a carbon fiber composite material into a plate-shaped sample (3) with a regular polygon cross section, simultaneously processing a positioning hole (2) in the middle part, and fixing the plate-shaped sample (3) on a force measuring device of a numerical control machine tool by utilizing the positioning hole (2);
2) setting processing paths and processing parameters of the grinding wheel (1) on a numerical control machine tool, then sequentially finishing grinding of all the processing paths by using the grinding wheel (1) along the outer contour line of the plate-shaped sample (3), and recording a complete grinding force signal by using a force measuring device in the grinding process;
3) the grinding force under various grinding angle changes is calculated through comprehensive analysis of grinding force signals of various processing paths, the plate-shaped sample (3) is taken down, the processing quality of different processing surfaces is contrastingly detected, and finally, a multi-angle grinding test experiment of the carbon fiber composite material is completed.
2. The method for improving the multi-angle grinding experiment precision of the carbon fiber composite material as claimed in claim 1, wherein the method comprises the following steps: in step 1), the number of edges of the regular polygon is represented by a formula
And calculating, wherein theta is a subdivided angle of the grinding experiment.
3. The method for improving the multi-angle grinding experiment precision of the carbon fiber composite material as claimed in claim 1, wherein the method comprises the following steps: in the step 2), each side surface of the plate-shaped sample (3) is a processing path; the grinding wheel 1 is suspended to feed for 3-5 seconds at the junction of two adjacent machining paths so as to ensure that the grinding force signals have clear boundaries.
4. The method for improving the multi-angle grinding experiment precision of the carbon fiber composite material as claimed in claim 1, wherein the method comprises the following steps: in the step 2), the grinding wheel (1) is a cup-shaped diamond grinding wheel, the mesh number of the grinding wheel is 170/200 meshes, the grinding depth is less than 20 mu m, the feeding speed is not more than 7m/min, and the grinding speed is 15-50 m/s.
5. The method for improving the multi-angle grinding experiment precision of the carbon fiber composite material as claimed in claim 1, wherein the method comprises the following steps: in the step 2), the grinding process of the grinding wheel (1) is forward grinding and reverse grinding; grinding angles include, but are not limited to, 0 °, 30 °, 45 °, 60 °, 90 °, 120 °, 135 °, 180 °.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102009387A (en) * | 2010-11-20 | 2011-04-13 | 大连理工大学 | Semiconductor wafer grinding force on-line measurement device and force-controlling grinding method |
| CN102590000A (en) * | 2012-02-21 | 2012-07-18 | 南京航空航天大学 | Super-speed grinding experiment method for single abrasive grain |
| CN105665800A (en) * | 2016-04-06 | 2016-06-15 | 中国南方航空工业(集团)有限公司 | Method for milling precise cavity plane of thin-wall aluminum-magnesium cartridge receiver of aircraft engine |
| CN105738240A (en) * | 2016-02-29 | 2016-07-06 | 上海交通大学 | Quality evaluation method of CFRP cut and machined surface at full-range fiber orientation angle |
| CN106217217A (en) * | 2016-08-10 | 2016-12-14 | 江苏大学 | A kind of constant pressure the accurate metallographic grinding and polishing device from dynamic(al) correction elimination cut |
| CN110579244A (en) * | 2019-10-21 | 2019-12-17 | 河南工业大学 | Test platform for passive grinding mode of steel rail |
-
2020
- 2020-09-27 CN CN202011068449.3A patent/CN112198114A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102009387A (en) * | 2010-11-20 | 2011-04-13 | 大连理工大学 | Semiconductor wafer grinding force on-line measurement device and force-controlling grinding method |
| CN102590000A (en) * | 2012-02-21 | 2012-07-18 | 南京航空航天大学 | Super-speed grinding experiment method for single abrasive grain |
| CN105738240A (en) * | 2016-02-29 | 2016-07-06 | 上海交通大学 | Quality evaluation method of CFRP cut and machined surface at full-range fiber orientation angle |
| CN105665800A (en) * | 2016-04-06 | 2016-06-15 | 中国南方航空工业(集团)有限公司 | Method for milling precise cavity plane of thin-wall aluminum-magnesium cartridge receiver of aircraft engine |
| CN106217217A (en) * | 2016-08-10 | 2016-12-14 | 江苏大学 | A kind of constant pressure the accurate metallographic grinding and polishing device from dynamic(al) correction elimination cut |
| CN110579244A (en) * | 2019-10-21 | 2019-12-17 | 河南工业大学 | Test platform for passive grinding mode of steel rail |
Non-Patent Citations (6)
| Title |
|---|
| CHANGYING WANG: "Machinability Characteristics Evolution of CFRP in a Continuum of Fiber Orientation Angles", 《MATERIALS AND MANUFACTURING PROCESSES》 * |
| 丁建国: "虚拟数控外圆磨床磨削加工的初步研究", 《工程科技Ⅰ辑》 * |
| 任乃飞: "《工程实践 机械与近机械类 第2版》" * |
| 张立峰: "单向碳纤维复合材料界面力学性能测试研究", 《机械科学与技术》 * |
| 段性军: "自动多角度铣削专用夹具研究及实践", 《自动多角度铣削专用夹具研究及实践》 * |
| 陈明: "《碳纤维复合材料与叠层结构切削加工理论及应用技术》", 31 January 2019 * |
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