CN111805305A - Method for machining part with deep hole chromium layer - Google Patents
Method for machining part with deep hole chromium layer Download PDFInfo
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- CN111805305A CN111805305A CN201911198275.XA CN201911198275A CN111805305A CN 111805305 A CN111805305 A CN 111805305A CN 201911198275 A CN201911198275 A CN 201911198275A CN 111805305 A CN111805305 A CN 111805305A
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- grinding
- deep hole
- chromium
- chromium layer
- processing
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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
Abstract
A method for processing a part with a deep hole chromium layer selects reasonable grinding technological parameters: the rotation speed n is 2800-. The cutting depth ap is 0.002-0.005mm, and the consumption rate of the grinding wheel is 0.02 per grinding wheel. The invention has the advantages that: the aviation parts are all provided with inner hole chromium plating structures, the base part material 1Cr17Ni2 is also a common material, and reasonable grinding process parameters and tools are selected, so that the method is the most effective method for improving the quality and the efficiency of machining. The method for grinding the chromium layer of the front conical wall component is widely applied. The project passes the check and acceptance of factories and is subjected to batch trial production, parts can meet the requirements of relevant standards, and 100 percent of parts are qualified. This project has now been extended to use in the machining of parts of the same type.
Description
Technical Field
The invention relates to the field of deep hole turning of a part material 1Cr17Ni2 and an inner hole chromium plating coating, in particular to a method for processing a part by a deep hole chromium layer.
Background
The chromium-plated coating of the inner hole of the part is often encountered in the processing process, and particularly, deep hole grinding of the chromium layer coating of the material 1Cr17Ni2 is a difficult point in the processing process, the chromium layer can not be locally processed in the grinding processing process to influence the surface quality of the part, and meanwhile, the chromium plating and the chromium grinding are carried out again to increase the labor intensity of an operator, occupy equipment and waste resources. Reasonable grinding technological parameters and tools are selected, and the method is the most effective method for improving the quality and the efficiency of machining.
Disclosure of Invention
The invention aims to solve the problem that the local processing of the chromium layer cannot be realized in the deep hole grinding process, reduce the labor intensity, improve the surface quality and the processing efficiency of the chromium layer, realize the engineering popularization and application, and particularly provides a method for processing parts by using the deep hole chromium layer.
The invention provides a method for processing a part with a deep hole chromium layer, which is characterized by comprising the following steps: analyzing the bonding force of the chrome plating coating of the conical wall component on the material 1Cr17Ni2 before and the reason of uneven thickness of the chrome layer in the chrome plating process; influence of cutting parameters on the binding force of the chromium layer, design and manufacture of the tool and processing practice.
A method of deep hole chrome layer machining a part as claimed in claim 1, wherein: clamping the part, aligning an inner hole F, and then carrying out deep hole grinding and end face grinding according to the position shown in figure 1.
A method of deep hole chrome layer machining a part as claimed in claim 1, wherein: selecting reasonable grinding technological parameters: the rotation speed n is 2800-.
Diameter phi 220.26 of inner hole of front conical wall component of engine in grinding process+0.02The length is 28, the technical conditions require that the radial run-out is 0.03, the end face run-out is 0.01, the roundness is 0.01, the part materials are 1Cr17Ni2, the inner hole is phi 220 chromium-plated layer, the thickness of the chromium layer is more than or equal to 0.15, and due to the uneven thickness of the chromium layer, the local processing of the chromium layer can not be realized in the grinding process, so that the processing quality is influenced. Resulting in the re-dechroming and chromeplating of the part. By adopting a special numerical control vertical mill and a special clamp, selecting reasonable grinding process parameters and repeatedly performing attack and shutdown tests (the rotating speed n is 2800 plus 3400/min, the feed quantity fn is 0.1mm/r and the cutting depth ap is 0.002-0.005 mm), the processing quality of chromium layers processed by the mill is improved, the time and the cost for removing chromium and plating chromium again in a hot surface workshop are reduced, the processing period of parts is shortened, the labor intensity of personnel is reduced, the standardization of deep hole milling coatings is realized, the operation steps are refined, and the primary processing qualification rate is improved.
The invention has the advantages that:
the aviation parts are all provided with inner hole chromium plating structures, the base part material 1Cr17Ni2 is also a common material, and reasonable grinding process parameters and tools are selected, so that the method is the most effective method for improving the quality and the efficiency of machining. The method for grinding the chromium layer of the front conical wall component is widely applied. The project passes the check and acceptance of factories and is subjected to batch trial production, parts can meet the requirements of relevant standards, and 100 percent of parts are qualified. This project has now been extended to use in the machining of parts of the same type.
Drawings
The invention is described in further detail below with reference to the following figures and embodiments:
FIG. 1 is an exploded view;
in the figure, 1 is a part, 2 is a grinding wheel, and 3 is a clamp.
Detailed Description
Example 1
The invention provides a method for processing a part with a deep hole chromium layer, which is characterized by comprising the following steps: analyzing the bonding force of the chrome plating coating of the conical wall component on the material 1Cr17Ni2 before and the reason of uneven thickness of the chrome layer in the chrome plating process; influence of cutting parameters on the binding force of the chromium layer, design and manufacture of the tool and processing practice.
A method of deep hole chrome layer machining a part as claimed in claim 1, wherein: clamping the part, aligning an inner hole F, and then carrying out deep hole grinding and end face grinding according to the position shown in figure 1.
A method of deep hole chrome layer machining a part as claimed in claim 1, wherein: selecting reasonable grinding technological parameters: the rotation speed n is 2800-.
Diameter phi 220.26 of inner hole of front conical wall component of engine in grinding process+0.02The length is 28, the technical conditions require that the radial run-out is 0.03, the end face run-out is 0.01, the roundness is 0.01, the part materials are 1Cr17Ni2, the inner hole phi 220 chromium coating is provided with a chromium coating, the thickness of the chromium coating is more than or equal to 0.15, and due to the uneven thickness of the chromium coating, the local processing of the chromium coating can not be realized in the grinding process, which influences the processing qualityAmount of the compound (A). Resulting in the re-dechroming and chromeplating of the part. By adopting a special numerical control vertical mill and a special clamp, selecting reasonable grinding process parameters and repeatedly performing attack and shutdown tests (the rotating speed n is 2800 plus 3400/min, the feed quantity fn is 0.1mm/r and the cutting depth ap is 0.002-0.005 mm), the processing quality of chromium layers processed by the mill is improved, the time and the cost for removing chromium and plating chromium again in a hot surface workshop are reduced, the processing period of parts is shortened, the labor intensity of personnel is reduced, the standardization of deep hole milling coatings is realized, the operation steps are refined, and the primary processing qualification rate is improved.
Example 2
The invention provides a method for processing a part with a deep hole chromium layer, which is characterized by comprising the following steps: analyzing the bonding force of the chrome plating coating of the conical wall component on the material 1Cr17Ni2 before and the reason of uneven thickness of the chrome layer in the chrome plating process; influence of cutting parameters on the binding force of the chromium layer, design and manufacture of the tool and processing practice.
A method of deep hole chrome layer machining a part as claimed in claim 1, wherein: clamping the part, aligning an inner hole F, and then carrying out deep hole grinding and end face grinding according to the position shown in figure 1.
A method of deep hole chrome layer machining a part as claimed in claim 1, wherein: selecting reasonable grinding technological parameters: the cutting depth ap is 0.002-0.005mm, and the consumption rate of the grinding wheel is 0.02 per grinding wheel.
Diameter phi 220.26 of inner hole of front conical wall component of engine in grinding process+0.02The length is 28, the technical conditions require that the radial run-out is 0.03, the end face run-out is 0.01, the roundness is 0.01, the part materials are 1Cr17Ni2, the inner hole is phi 220 chromium-plated layer, the thickness of the chromium layer is more than or equal to 0.15, and due to the uneven thickness of the chromium layer, the local processing of the chromium layer can not be realized in the grinding process, so that the processing quality is influenced. Resulting in the re-dechroming and chromeplating of the part. By adopting a special numerical control vertical mill and a special clamp, selecting reasonable grinding process parameters and repeatedly performing attack and shutdown tests (the rotating speed n is 2800 plus 3400/min, the feed quantity fn is 0.1mm/r and the cutting depth ap is 0.002-0.005 mm), the processing quality of chromium layers processed by the mill is improved, the time and the cost for removing chromium and plating chromium again in a hot surface workshop are reduced, the processing period of parts is shortened, the labor intensity of personnel is reduced, the standardization of deep hole milling coatings is realized, the operation steps are refined, and the primary processing qualification rate is improved.
Example 3
The invention provides a method for processing a part with a deep hole chromium layer, which is characterized by comprising the following steps: analyzing the bonding force of the chrome plating coating of the conical wall component on the material 1Cr17Ni2 before and the reason of uneven thickness of the chrome layer in the chrome plating process; influence of cutting parameters on the binding force of the chromium layer, design and manufacture of the tool and processing practice.
A method of deep hole chrome layer machining a part as claimed in claim 1, wherein: clamping the part, aligning an inner hole F, and then carrying out deep hole grinding and end face grinding according to the position shown in figure 1.
A method of deep hole chrome layer machining a part as claimed in claim 1, wherein: selecting reasonable grinding technological parameters: the rotation speed n is 2800-.
Diameter phi 220.26 of inner hole of front conical wall component of engine in grinding process+0.02The length is 28, the technical conditions require that the radial run-out is 0.03, the end face run-out is 0.01, the roundness is 0.01, the part materials are 1Cr17Ni2, the inner hole is phi 220 chromium-plated layer, the thickness of the chromium layer is more than or equal to 0.15, and due to the uneven thickness of the chromium layer, the local processing of the chromium layer can not be realized in the grinding process, so that the processing quality is influenced. Resulting in the re-dechroming and chromeplating of the part. By adopting a special numerical control vertical mill and a special clamp, selecting reasonable grinding process parameters and repeatedly performing attack and shutdown tests (the rotating speed n is 2800 plus 3400/min, the feed quantity fn is 0.1mm/r and the cutting depth ap is 0.002-0.005 mm), the processing quality of chromium layers processed by the mill is improved, the time and the cost for removing chromium and plating chromium again in a hot surface workshop are reduced, the processing period of parts is shortened, the labor intensity of personnel is reduced, the standardization of deep hole milling coatings is realized, the operation steps are refined, and the primary processing qualification rate is improved.
Claims (4)
1. A method for processing a part with a deep hole chromium layer is characterized by comprising the following steps: analyzing the bonding force of the chrome plating coating of the conical wall component on the material 1Cr17Ni2 before and the reason of uneven thickness of the chrome layer in the chrome plating process; influence of cutting parameters on the binding force of the chromium layer, design and manufacture of the tool and processing practice.
2. A method of deep hole chrome layer machining a part as claimed in claim 1, wherein: and clamping the part, aligning an inner hole F, and then carrying out deep hole grinding and end face grinding.
3. A method of deep hole chrome layer machining a part as claimed in claim 1, wherein: selecting reasonable grinding technological parameters: the rotation speed n is 2800-.
4. A method of deep hole chrome layer machining a part as claimed in claim 1, wherein: the cutting depth ap is 0.002-0.005mm, and the consumption rate of the grinding wheel is 0.02 per grinding wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911198275.XA CN111805305A (en) | 2019-11-29 | 2019-11-29 | Method for machining part with deep hole chromium layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911198275.XA CN111805305A (en) | 2019-11-29 | 2019-11-29 | Method for machining part with deep hole chromium layer |
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| CN111805305A true CN111805305A (en) | 2020-10-23 |
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| CN201911198275.XA Pending CN111805305A (en) | 2019-11-29 | 2019-11-29 | Method for machining part with deep hole chromium layer |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5024680A (en) * | 1988-11-07 | 1991-06-18 | Norton Company | Multiple metal coated superabrasive grit and methods for their manufacture |
| CN101456143A (en) * | 2007-12-10 | 2009-06-17 | 天津市天材科技发展有限公司 | Thinning technique of high-performance iron chromium cobalt permanent magnetic alloy material |
| CN101586447A (en) * | 2008-05-23 | 2009-11-25 | 安东石油技术（集团）有限公司 | Production device for hot spraying alloy coating on surface of polished pumping rod |
| CN106191956A (en) * | 2016-08-29 | 2016-12-07 | 深圳天珑无线科技有限公司 | The surface treatment method of a kind of aluminium alloy and corresponding aluminium alloy |
| CN107009198A (en) * | 2017-04-18 | 2017-08-04 | 上海第机床厂有限公司 | Nuclear island primary device part chromium coating method for grinding |
-
2019
- 2019-11-29 CN CN201911198275.XA patent/CN111805305A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5024680A (en) * | 1988-11-07 | 1991-06-18 | Norton Company | Multiple metal coated superabrasive grit and methods for their manufacture |
| CN101456143A (en) * | 2007-12-10 | 2009-06-17 | 天津市天材科技发展有限公司 | Thinning technique of high-performance iron chromium cobalt permanent magnetic alloy material |
| CN101586447A (en) * | 2008-05-23 | 2009-11-25 | 安东石油技术（集团）有限公司 | Production device for hot spraying alloy coating on surface of polished pumping rod |
| CN106191956A (en) * | 2016-08-29 | 2016-12-07 | 深圳天珑无线科技有限公司 | The surface treatment method of a kind of aluminium alloy and corresponding aluminium alloy |
| CN107009198A (en) * | 2017-04-18 | 2017-08-04 | 上海第机床厂有限公司 | Nuclear island primary device part chromium coating method for grinding |
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Application publication date: 20201023 |
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