CN108637384A - A kind of processing method of control marine diesel idler wheel residual stress - Google Patents
A kind of processing method of control marine diesel idler wheel residual stress Download PDFInfo
- Publication number
- CN108637384A CN108637384A CN201810247843.XA CN201810247843A CN108637384A CN 108637384 A CN108637384 A CN 108637384A CN 201810247843 A CN201810247843 A CN 201810247843A CN 108637384 A CN108637384 A CN 108637384A
- Authority
- CN
- China
- Prior art keywords
- residual stress
- marine diesel
- cutting
- idler wheel
- roller surface
- Prior art date
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D79/00—Methods, machines, or devices not covered elsewhere, for working metal by removal of material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q15/00—Automatic control or regulation of feed movement, cutting velocity or position of tool or work
Abstract
The invention discloses a kind of processing methods of control marine diesel idler wheel residual stress, it is characterised in that includes the following steps：Step 1：Selected equipment and adjustment to equipment：Using numerically-controlled machine tool model C S6140, cutting-tool angle is adjusted, tool orthogonal rake is 0 °, and tool clearance is 5 °；Step 2：Marine diesel idler wheel is processed：The surface residual stress of different marine diesel idler wheels is obtained by increasing cutting speed, the amount of feeding and cutting depth, completes the processing to marine diesel idler wheel.The present invention is adjusted on machined parameters, achieve the purpose that control residual stress with optimal machined parameters, residual stress is minimized to reach while the effect of do not increase cost, the present invention has considered cutting data three elements simultaneously, that is the influence of cutting speed, the amount of feeding and cutting depth to workpiece residual stress, it is more comprehensively fine to control residual stress.
Description
Technical field
The present invention relates to ship part processing technique field more particularly to a kind of control marine diesel idler wheel residual stress
Processing method.
Background technology
Idler wheel is the important part in high speed oil injection pump of high-power diesel engine and inlet and exhaust system peculiar to vessel, and when work turns
Speed be up to 2000r/min, can reliably working, can be directly related to entire oil spout and air distribution system work normally, until
Entire diesel engine safety work.Since metal cutting process is one along with high temperature, the large deformation of high pressure, high strain-rate
Process, can have sizable residual stress on machined surface, and residual stress have to the performance of part it is important
Influence.It can influence static strength, fatigue strength and the corrosion resistance of roller surface, and then influence the use longevity of idler wheel
Life.
However, traditional idler wheel control residual stress method be heat-treated with natrual ageing based on, but heat treatment can draw
Enter new residual stress and heat treatment is improper can cause temper brittleness, natrual ageing is again time-consuming too long.In the prior art, also have
The method for controlling workpiece surface residual stress by controlling the amount of feeding, however workpiece under surface layer often due to exist centainly
Residual tension and it is cracked so that fatigue failure.
Therefore, it is necessary to a kind of processing method of completely new control marine diesel idler wheel residual stress be provided, in solution
State defect existing in the prior art.
Invention content
In order to solve the above technical problems, the present invention provides a kind of processing side of control marine diesel idler wheel residual stress
Method.
The present invention provides a kind of processing method of control marine diesel idler wheel residual stress, adopts the following technical scheme that：
A kind of processing method of control marine diesel idler wheel residual stress, includes the following steps：
Step 1：Selected equipment and adjustment to equipment：
Using numerically-controlled machine tool model C S6140, cutting-tool angle is adjusted, tool orthogonal rake is 0 °, and tool clearance is 5 °；
Step 2：Marine diesel idler wheel is processed：
The surface residual stress of different marine diesel idler wheels is obtained by increasing cutting speed, the amount of feeding and cutting depth,
Complete the processing to marine diesel idler wheel.
Increase cutting speed, the amount of feeding and cutting depth in step 2 obtain the surface of different marine diesel idler wheels
Residual stress, specific method are：
When cutting speed is 45m/min, roller surface residual stress is 101MPa；
When cutting speed is 75m/min, roller surface residual stress is 150MPa；
When cutting speed is 100m/min, roller surface residual stress is 181MPa；
When the amount of feeding is 0.15mm/r, roller surface residual stress is 122MPa；
When the amount of feeding is 0.2mm/r, roller surface residual stress is 181MPa；
When the amount of feeding is 0.3mm/r, roller surface residual stress is 202MPa；
When cutting depth is 0.2mm, roller surface residual stress is 162MPa；
When cutting depth is 0.5mm, roller surface residual stress is 181MPa；
When cutting depth is 0.8mm, roller surface residual stress is 196Mpa.
When cutting speed is 60m/min, the amount of feeding is when being 0.18mm/r and when cutting depth is 0.2mm, it is possible to reduce
Cost is minimum simultaneously for residual stress, and Stress Control is in 152MPa or less.
Compared with the relevant technologies, the present invention has the following technical effect that：
（1）The present invention is adjusted on machined parameters, achievees the purpose that control residual stress with optimal machined parameters, to
Reach the effect of minimizing residual stress while not increasing cost.
（2）The present invention has considered cutting data three elements, i.e. cutting speed, the amount of feeding and cutting depth is residual to workpiece
The influence of residue stress, it is more comprehensively fine to control residual stress.
（3）The present invention not only considers workpiece surface residual stress, but considers the remnants of certain depth under workpiece surface
Stress is three-dimensional comprehensive to have considered workpiece from surface until workpiece core surface residual stress is constant
Residual stress.
Description of the drawings
Fig. 1 is the effect tendency figure that cutting speed is distributed residual stress along depth direction in cutting direction of the present invention；
Fig. 2 is the effect tendency figure that cutting direction upper feeding amount of the present invention is distributed residual stress along depth direction；
Fig. 3 is the effect tendency figure that cutting depth is distributed residual stress along depth direction in cutting direction of the present invention.
Specific implementation mode
Below in conjunction with drawings and embodiments, the invention will be further described.
A kind of processing method of control marine diesel idler wheel residual stress of the present invention, includes the following steps：
Step 1：Selected equipment and adjustment to equipment：
Using numerically-controlled machine tool model C S6140, cutting-tool angle is adjusted, tool orthogonal rake is 0 °, and tool clearance is 5 °；
Step 2：Marine diesel idler wheel is processed：
The surface residual stress of different marine diesel idler wheels is obtained by increasing cutting speed, the amount of feeding and cutting depth,
Complete the processing to marine diesel idler wheel.
Increase cutting speed, the amount of feeding and cutting depth in step 2 obtain the surface of different marine diesel idler wheels
Residual stress, specific method are：
As shown in Figure 1, when cutting speed is 45m/min, roller surface residual stress is 101MPa；Cutting speed is 75m/min
When, roller surface residual stress is 150MPa；When cutting speed is 100m/min, roller surface residual stress is 181MPa.
As shown in Fig. 2, when the amount of feeding is 0.15mm/r, roller surface residual stress is 122MPa；The amount of feeding is 0.2mm/r
When, roller surface residual stress is 181MPa；When the amount of feeding is 0.3mm/r, roller surface residual stress is 202MPa.
As shown in figure 3, when cutting depth is 0.2mm, roller surface residual stress is 162MPa；Cutting depth is 0.5mm
When, roller surface residual stress is 181MPa；When cutting depth is 0.8mm, roller surface residual stress is 196Mpa.
Idler wheel size procedure analysis：Lathe model CS6140, cutting parameter is that cutting speed is before process modification
When 120m/min, the amount of feeding is when being 0.1mm/r and when cutting depth is 1mm, and the surface residual measured after size process is answered
Power is up to 228MPa, and the results contrast after test result optimizes with more than can obtain：In the process parameters range of selection, obtain
To roller surface residual tension be respectively less than the measurement result before process modification.Wherein, choose cutting speed 45m/min,
In the case of amount of feeding 0.2mm/r, cutting depth 0.5mm, the residual tension of roller surface is minimum, result be 125MPa with
Under.Moreover, with cutting speed, the increase of the amount of feeding, cutting depth, roller surface residual tension also becomes larger, cutting speed
Influence to residual tension is maximum.
If in the case where only considering residual stress factor, lower cutting speed, the amount of feeding and cutting depth are selected,
Lower residual tension can be obtained in roller surface.
In the case where considering cost factor, the new size process of idler wheel select cutting speed for 60m/min when, feeding
When amount is 0.18mm/r and when cutting depth is 0.2mm, two aspect of residual stress and cost can be taken into account, stress controls substantially
In 152MPa or less.
From the foregoing, it will be observed that in turning marine diesel hardened bearing steel（GCr15）When part-idler wheel, when cutting speed, into
When increase tendency being presented in a certain range to amount and cutting depth, cutting direction upper roller surface residual tensile stress is also correspondingly
Increase.So can achieve the purpose that regulate and control roller surface residual stress by choosing suitable cutting data three elements.
Example the above is only the implementation of the present invention is not intended to limit the scope of the invention, every to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (3)
1. a kind of processing method of control marine diesel idler wheel residual stress, it is characterised in that include the following steps：
Step 1：Selected equipment and adjustment to equipment：
Using numerically-controlled machine tool model C S6140, cutting-tool angle is adjusted, tool orthogonal rake is 0 °, and tool clearance is 5 °；
Step 2：Marine diesel idler wheel is processed：
The surface residual stress of different marine diesel idler wheels is obtained by increasing cutting speed, the amount of feeding and cutting depth,
Complete the processing to marine diesel idler wheel.
2. a kind of processing method of control marine diesel idler wheel residual stress as described in claim 1, it is characterised in that：Step
Increase cutting speed, the amount of feeding and cutting depth in rapid two obtain the surface residual stress of different marine diesel idler wheels,
Specific method is：
When cutting speed is 45m/min, roller surface residual stress is 101MPa；
When cutting speed is 75m/min, roller surface residual stress is 150MPa；
When cutting speed is 100m/min, roller surface residual stress is 181MPa；
When the amount of feeding is 0.15mm/r, roller surface residual stress is 122MPa；
When the amount of feeding is 0.2mm/r, roller surface residual stress is 181MPa；
When the amount of feeding is 0.3mm/r, roller surface residual stress is 202MPa；
When cutting depth is 0.2mm, roller surface residual stress is 162MPa；
When cutting depth is 0.5mm, roller surface residual stress is 181MPa；
When cutting depth is 0.8mm, roller surface residual stress is 196Mpa.
3. a kind of processing method of control marine diesel idler wheel residual stress as claimed in claim 2, it is characterised in that：When
When cutting speed is 60m/min, the amount of feeding is when being 0.18mm/r and when cutting depth is 0.2mm, it is possible to reduce residual stress is same
Shi Chengben is minimum, and Stress Control is in 152MPa or less.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810247843.XA CN108637384A (en) | 2018-03-23 | 2018-03-23 | A kind of processing method of control marine diesel idler wheel residual stress |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810247843.XA CN108637384A (en) | 2018-03-23 | 2018-03-23 | A kind of processing method of control marine diesel idler wheel residual stress |
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| CN108637384A true CN108637384A (en) | 2018-10-12 |
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| CN201810247843.XA Pending CN108637384A (en) | 2018-03-23 | 2018-03-23 | A kind of processing method of control marine diesel idler wheel residual stress |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113635137A (en) * | 2021-08-20 | 2021-11-12 | 江西昌河航空工业有限公司 | Method for determining cutting depth |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1614599A (en) * | 2004-11-25 | 2005-05-11 | 上海交通大学 | Method for determining parameters for rolling contact quenching dry hard machined workpiece |
| CN104484519A (en) * | 2014-12-04 | 2015-04-01 | 华中科技大学 | Parameter optimizing method for cryogenic tempering of nickel-based high temperature alloy |
-
2018
- 2018-03-23 CN CN201810247843.XA patent/CN108637384A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1614599A (en) * | 2004-11-25 | 2005-05-11 | 上海交通大学 | Method for determining parameters for rolling contact quenching dry hard machined workpiece |
| CN104484519A (en) * | 2014-12-04 | 2015-04-01 | 华中科技大学 | Parameter optimizing method for cryogenic tempering of nickel-based high temperature alloy |
Non-Patent Citations (1)
| Title |
|---|
| 赵炳桢等: "《现代刀具设计与应用》", 30 September 2014 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113635137A (en) * | 2021-08-20 | 2021-11-12 | 江西昌河航空工业有限公司 | Method for determining cutting depth |
| CN113635137B (en) * | 2021-08-20 | 2023-07-28 | 江西昌河航空工业有限公司 | Method for determining cutting depth |
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Application publication date: 20181012 |