CN114290131A - Process method for improving surface finish of surface of combustion engine blade profile - Google Patents
Process method for improving surface finish of surface of combustion engine blade profile Download PDFInfo
- Publication number
- CN114290131A CN114290131A CN202111619759.4A CN202111619759A CN114290131A CN 114290131 A CN114290131 A CN 114290131A CN 202111619759 A CN202111619759 A CN 202111619759A CN 114290131 A CN114290131 A CN 114290131A
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- CN
- China
- Prior art keywords
- blade
- combustion engine
- improving
- profile
- numerical control
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 38
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 15
- 238000005498 polishing Methods 0.000 claims abstract description 29
- 239000004677 Nylon Substances 0.000 claims abstract description 18
- 229920001778 nylon Polymers 0.000 claims abstract description 18
- 238000005480 shot peening Methods 0.000 claims abstract description 6
- 238000005728 strengthening Methods 0.000 claims abstract description 5
- 239000010431 corundum Substances 0.000 claims description 9
- 229910052593 corundum Inorganic materials 0.000 claims description 9
- 239000011347 resin Substances 0.000 claims description 9
- 229920005989 resin Polymers 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 239000006004 Quartz sand Substances 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 3
- 239000000344 soap Substances 0.000 claims description 3
- 238000005422 blasting Methods 0.000 abstract description 10
- 230000000694 effects Effects 0.000 description 3
- 230000003746 surface roughness Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
- B24B21/16—Machines or devices using grinding or polishing belts; Accessories therefor for grinding other surfaces of particular shape
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B31/00—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor
- B24B31/06—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor involving oscillating or vibrating containers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
- B24B49/16—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation taking regard of the load
Abstract
The invention aims to provide a process method for improving the surface finish of the surface of a combustion engine blade profile, which can improve the finish of the surface of the blade profile without damaging shot blasting traces on the surface of the blade profile and is characterized in that: the method comprises the following steps: step 1, installing the blade after shot peening strengthening on a six-axis linkage numerical control abrasive belt grinder of the blade and carrying out numerical control polishing on a processing area of the blade by using a nylon belt; and 2, carrying out vibration finishing on the blade subjected to the numerical control polishing.
Description
Technical Field
The invention belongs to the technical field related to blade processing, and particularly relates to a process method for improving surface finish of a profile surface of a gas turbine blade.
Background
On the one hand, in order to improve the surface strength of the combustion engine blade, shot peening of the profile surface of the blade is required, which results in a low finish of the strengthened profile surface. On the other hand, to meet the efficiency of the whole machine, the surface smoothness of the profile of the blade is required to be high, and the higher the surface smoothness of the profile of the blade is, the lower the resistance of the airflow passing through the surface of the profile of the blade is, and the higher the efficiency of the whole machine is. Therefore, there is a need for a process that can improve the surface finish of the blade profile without damaging the shot peen marks on the surface of the blade profile.
Disclosure of Invention
The invention aims to provide a process method for improving the surface smoothness of the surface of the blade profile of a combustion engine, which aims to solve the problems in the background technology and can improve the surface smoothness of the blade profile without damaging shot blasting marks on the surface of the blade profile.
In order to achieve the above object, the present invention provides the following technical solutions.
A process method for improving the surface finish of the surface of the profile of a combustion engine blade is characterized by comprising the following steps: the method comprises the following steps:
step 1, installing the blade after shot peening strengthening on a six-axis linkage numerical control abrasive belt grinder of the blade and carrying out numerical control polishing on a processing area of the blade by using a nylon belt;
and 2, carrying out vibration finishing on the blade subjected to the numerical control polishing.
Further, when numerical control polishing is carried out in the step 1, the moving speed of the nylon belt is 4500-5000 mm/pm, the rotating speed of the nylon belt is 2500 rpm-3000 rpm, and the processing step distance of the nylon belt is less than or equal to 1 mm.
Further, during numerical control polishing in the step 1, the pressure value between the blade and the polishing wheel provided with the nylon belt is adjusted according to the roughness value of the surface of the profile of the blade.
Further, the pressure value is the lightest pressure value of contact between the polishing wheel and the blade, which can be set by the blade six-axis linkage numerical control abrasive belt grinding machine.
Further, the step 2 specifically includes: step 2.1, roughly grinding the blade by adopting a resin grinding material; and 2.2, carrying out fine grinding by adopting a brown corundum grinding material.
Furthermore, the resin abrasive is a resin-based quartz sand grinding medium.
Further, in the step 2.1, a circular pot type vibration finishing machine is adopted to carry out three-dimensional rotary vibration, and alkaline soap liquid or special grinding liquid is added for assistance in the vibration process.
Further, the brown corundum abrasive is a ceramic-based brown corundum grinding medium.
Compared with the prior art, the invention provides a process method for improving the surface finish of the surface of the molded surface of the gas turbine blade, which has the following beneficial effects:
according to the invention, the nylon belt on the six-axis linkage numerical control abrasive belt grinding machine of the blade is used for carrying out numerical control polishing on the blade after shot blasting strengthening, and then the vibration finishing machine is used for carrying out vibration finishing on the blade after numerical control polishing, so that the roughness of a processing area on the surface of the blade profile is within Ra0.2, shot blasting can be obviously seen in shot blasting pits, and the shot blasting pits can be uniformly distributed, thereby realizing the technical effect of improving the smoothness of the surface of the blade profile without damaging shot blasting traces on the surface of the blade profile.
Drawings
FIG. 1 is a flow chart of the present invention;
FIG. 2 is a machining area of a blade;
FIG. 3 is a schematic view of a six-axis linkage numerical control abrasive belt grinding machine for blades;
FIG. 4 is a schematic view of shot blasting craters in different states.
Detailed Description
1-4, a process for improving the surface finish of the profile surface of a combustion engine blade, comprising the steps of:
step 1, installing the blade after shot peening on a six-axis linkage numerical control abrasive belt grinding machine (as shown in figure 3, and X axis, Y axis, Z axis, a axis, b axis and c axis in the equipment are marked in figure 3) of the blade, and carrying out numerical control polishing on a processing area (as shown in figure 2) of the blade by using a nylon belt. During numerical control polishing, setting the moving speed of the nylon belt to be 4500-5000 mm/pm, the rotating speed of the nylon belt to be 2500-3000 rpm, and the processing step pitch of the nylon belt to be less than or equal to 1 mm; and adjusting the pressure value between the blade and the polishing wheel provided with the nylon belt according to the roughness value of the surface of the profile of the blade, wherein the pressure value is usually the lightest pressure value of the contact between the polishing wheel and the blade which can be set by a blade six-axis linkage numerical control abrasive belt grinding machine.
Step 2, carrying out vibration finishing on the blade subjected to numerical control polishing and grinding, and specifically comprising the following steps of: step 2.1, roughly grinding the blade by adopting a resin grinding material; and 2.2, carrying out fine grinding by adopting a brown corundum grinding material to finally achieve the state that the surface roughness is within Ra0.2. The resin abrasive is a resin-based quartz sand grinding medium; the brown corundum abrasive is a ceramic-based brown corundum grinding medium. And 2.1, performing three-dimensional rotary vibration by using a circular pot type vibration finishing machine, and adding alkaline soap liquid or special grinding liquid for assistance in the vibration process. The adoption of the vibration finishing mode can greatly reduce the processing time and ensure the surface quality.
The surface of the polishing area of the blade after the numerical control polishing is provided with polishing traces, the surface consistency is poor, the surface roughness needs to be further reduced through vibration polishing, the polishing traces are removed, and the polishing traces are provided, so that the consistency and the integrity of the surface appearance are achieved.
As shown in the flow of figure 1, the invention carries out numerical control polishing on the blade after shot peening strengthening by using a nylon belt on the blade six-axis linkage numerical control abrasive belt grinding machine, and then carries out vibration finishing on the blade after numerical control polishing by using a vibration finishing machine, thereby achieving the technical effects that the roughness of a processing area on the surface of the blade profile is within Ra0.2 and shot blasting craters can be obviously seen and can be uniformly distributed, thereby realizing the technical effects of not damaging shot blasting traces on the surface of the blade profile and improving the smoothness of the surface of the blade profile.
Claims (8)
1. A process method for improving the surface finish of the surface of the profile of a combustion engine blade is characterized by comprising the following steps: the method comprises the following steps:
step 1, installing the blade after shot peening strengthening on a six-axis linkage numerical control abrasive belt grinder of the blade and carrying out numerical control polishing on a processing area of the blade by using a nylon belt;
and 2, carrying out vibration finishing on the blade subjected to the numerical control polishing.
2. The process for improving the surface finish of the profile surface of the blade of the combustion engine according to claim 1, wherein the process comprises the following steps: and (3) during numerical control polishing in the step (1), setting the moving speed of the nylon belt to be 4500-5000 mm/pm, the rotating speed of the nylon belt to be 2500-3000 rpm, and the processing step distance of the nylon belt to be less than or equal to 1 mm.
3. The process for improving the surface finish of the profile surface of the blade of the combustion engine according to claim 1, wherein the process comprises the following steps: and (3) during numerical control polishing in the step (1), adjusting the pressure value between the blade and the polishing wheel provided with the nylon belt according to the roughness value of the surface of the blade profile.
4. The process for improving the surface finish of the profile surface of the blade of the combustion engine according to claim 3, wherein the process comprises the following steps: the pressure value is the lightest pressure value of contact between the polishing wheel and the blade, which can be set by the blade six-axis linkage numerical control abrasive belt grinding machine.
5. The process for improving the surface finish of the profile surface of the blade of the combustion engine according to claim 1, wherein the process comprises the following steps: the step 2 specifically comprises: step 2.1, roughly grinding the blade by adopting a resin grinding material; and 2.2, fine grinding by adopting a brown corundum grinding material.
6. The process of improving the surface finish of the profile surface of the blade of the combustion engine according to claim 5, wherein the process comprises the following steps: the resin abrasive is a resin-based quartz sand grinding medium.
7. The process of improving the surface finish of the profile surface of the blade of the combustion engine according to claim 5, wherein the process comprises the following steps: and 2.1, performing three-dimensional rotary vibration by using a circular pot type vibration finishing machine, and adding alkaline soap liquid or special grinding liquid for assistance in the vibration process.
8. The process of improving the surface finish of the profile surface of the blade of the combustion engine according to claim 5, wherein the process comprises the following steps: the brown corundum abrasive is a ceramic-based brown corundum grinding medium.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111619759.4A CN114290131A (en) | 2021-12-28 | 2021-12-28 | Process method for improving surface finish of surface of combustion engine blade profile |
| PCT/CN2021/143079 WO2023123207A1 (en) | 2021-12-28 | 2021-12-30 | Process method for improving surface smoothness of combustion turbine blade profile surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111619759.4A CN114290131A (en) | 2021-12-28 | 2021-12-28 | Process method for improving surface finish of surface of combustion engine blade profile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114290131A true CN114290131A (en) | 2022-04-08 |
Family
ID=80970489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111619759.4A Pending CN114290131A (en) | 2021-12-28 | 2021-12-28 | Process method for improving surface finish of surface of combustion engine blade profile |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN114290131A (en) |
| WO (1) | WO2023123207A1 (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070107217A1 (en) * | 2005-05-31 | 2007-05-17 | Mtu Aero Engines Gmbh | Method for surface blasting of integrally bladed rotors |
| CN106077643A (en) * | 2016-07-26 | 2016-11-09 | 西安航天发动机厂 | A kind of integral manufacturing method of S 04/S 08 high strength stainless steel three-dimensional closed impeller |
| CN106271429A (en) * | 2016-08-29 | 2017-01-04 | 中航动力股份有限公司 | A kind of compensation method of blisk blade profile anti-deformation |
| CN108972354A (en) * | 2018-08-21 | 2018-12-11 | 中国航发航空科技股份有限公司 | A kind of blade bead blasted surfaces numerical control grinding polishing processing method |
| CN110877283A (en) * | 2019-10-10 | 2020-03-13 | 昆山金百辰金属科技有限公司 | Hub polishing process |
| CN113305652A (en) * | 2021-07-02 | 2021-08-27 | 无锡航亚科技股份有限公司 | Method for reducing surface roughness of aviation precision-forged blade after shot blasting |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002326150A (en) * | 2001-05-01 | 2002-11-12 | Hmy Ltd | Blade surface polishing device and polishing method using the same |
| CN102430974A (en) * | 2011-12-26 | 2012-05-02 | 中信戴卡轮毂制造股份有限公司 | Aluminum wheel finishing process |
| CN109623503A (en) * | 2018-11-14 | 2019-04-16 | 中国航发动力股份有限公司 | A kind of engine blower blade damping bench-type face flexibility method for grinding |
| CN113752099A (en) * | 2021-04-21 | 2021-12-07 | 重庆大学 | Ultrasonic vibration abrasive belt grinding head with flexible contact amplitude compensation |
| CN113462872B (en) * | 2021-06-30 | 2023-03-21 | 中国航发动力股份有限公司 | Blade and preparation process thereof |
-
2021
- 2021-12-28 CN CN202111619759.4A patent/CN114290131A/en active Pending
- 2021-12-30 WO PCT/CN2021/143079 patent/WO2023123207A1/en unknown
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070107217A1 (en) * | 2005-05-31 | 2007-05-17 | Mtu Aero Engines Gmbh | Method for surface blasting of integrally bladed rotors |
| CN106077643A (en) * | 2016-07-26 | 2016-11-09 | 西安航天发动机厂 | A kind of integral manufacturing method of S 04/S 08 high strength stainless steel three-dimensional closed impeller |
| CN106271429A (en) * | 2016-08-29 | 2017-01-04 | 中航动力股份有限公司 | A kind of compensation method of blisk blade profile anti-deformation |
| CN108972354A (en) * | 2018-08-21 | 2018-12-11 | 中国航发航空科技股份有限公司 | A kind of blade bead blasted surfaces numerical control grinding polishing processing method |
| CN110877283A (en) * | 2019-10-10 | 2020-03-13 | 昆山金百辰金属科技有限公司 | Hub polishing process |
| CN113305652A (en) * | 2021-07-02 | 2021-08-27 | 无锡航亚科技股份有限公司 | Method for reducing surface roughness of aviation precision-forged blade after shot blasting |
Non-Patent Citations (1)
| Title |
|---|
| 郑娟、张亚莉、乔雷: "燃气轮机叶片喷丸表面超精工艺研究", 《燃气轮机叶片喷丸表面超精工艺研究》, pages 136 - 137 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023123207A1 (en) | 2023-07-06 |
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