CN107805705A - A kind of method and system for strengthening gear part - Google Patents
A kind of method and system for strengthening gear part Download PDFInfo
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- CN107805705A CN107805705A CN201711217300.5A CN201711217300A CN107805705A CN 107805705 A CN107805705 A CN 107805705A CN 201711217300 A CN201711217300 A CN 201711217300A CN 107805705 A CN107805705 A CN 107805705A
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D10/00—Modifying the physical properties by methods other than heat treatment or deformation
- C21D10/005—Modifying the physical properties by methods other than heat treatment or deformation by laser shock processing
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Abstract
This application discloses a kind of method for strengthening gear part, methods described includes：The failure mode and outer surface curvature in the region to be processed of the gear part are detected, and machining path is determined according to the form parameter in the region to be processed；Pulse width is determined according to the failure mode, and spot size is determined according to the outer surface curvature；Pulse laser is determined according to the pulse width and the spot size, intensified operation is carried out to the region to be processed along the machining path using the pulse laser.This method can improve the overall military service performance of gear part to reduce failure probability.Disclosed herein as well is a kind of system, a kind of computer-readable recording medium and a kind of pulse laser intensifying device for strengthening gear part, there is above beneficial effect.
Description
Technical field
The present invention relates to material reinforcement process field, more particularly to a kind of method, system and one kind for strengthening gear part
Computer-readable recording medium and a kind of pulse laser intensifying device.
Background technology
Laser-impact be it is a kind of using strong laser induced shock wave come the new technology of reinforced metal, can be greatly enhanced
The durability of metal material.The technology has realized universal engineer applied in the U.S., achieves good economic benefit and society imitates
Benefit.
In the prior art, gear part is processed usually using the pulse laser of fixed pulse parameter.But gear
The special military service conditions dictate gear material of part has the overall performance distribution of " outer hard in tough ", and specifically, the flank of tooth with
Also there is difference in the mode that tooth root position is failed, gear part is surface-treated using single surface intensified technique
Tend not to realize the region-wide hydrodynamics of part simultaneously.
Therefore, how during gear part is strengthened, the overall military service performance for improving gear part is failed with reducing
Probability is the current technical issues that need to address of those skilled in the art.
The content of the invention
The purpose of the application is to provide a kind of method, system and a kind of computer-readable recording medium for strengthening gear part
And a kind of pulse laser intensifying device, the overall military service performance of gear part during gear part is strengthened, can be improved
To reduce the probability that fails.
In order to solve the above technical problems, the application provides a kind of method for strengthening gear part, this method includes：
The failure mode and outer surface curvature in the region to be processed of the gear part are detected, and according to the work area to be added
The form parameter in domain determines machining path；
Pulse width is determined according to the failure mode, and spot size is determined according to the outer surface curvature；
Pulse laser is determined according to the pulse width and the spot size, using the pulse laser along the processing
Path carries out intensified operation to the region to be processed.
Optionally, in addition to：
After detecting that the gear part is strengthened, the gear part is delivered to predeterminated position, and clamping its
His gear part is to continue intensified operation.
Optionally, intensified operation is being carried out to the region to be processed along the machining path using the pulse laser
Before, in addition to：
Launch the position of the laser of the pulse laser described in regulation, with ensure the pulse laser with it is described to be added
Work area domain method is to coincidence.
Present invention also provides a kind of system for strengthening gear part, the system includes：
Detection module, the failure mode and outer surface curvature in the region to be processed for detecting the gear part, and root
Machining path is determined according to the form parameter in the region to be processed；
Parameter determination module, for determining pulse width according to the failure mode, and it is true according to the outer surface curvature
Determine spot size；
Reinforced module, for determining pulse laser according to the pulse width and the spot size, utilize the pulse
Laser carries out intensified operation along the machining path to the region to be processed.
Optionally, in addition to：
Part module is changed, for after detecting that the gear part is strengthened, the gear part being delivered to default
Position, and other gear parts of clamping are to continue intensified operation.
Optionally, in addition to：
Position adjustment block, for adjusting the position of the laser for launching the pulse laser, with described in guarantee
Pulse laser overlaps with the region normal direction to be processed.
Present invention also provides a kind of computer-readable recording medium, is stored thereon with computer program, the computer
Program realizes the step of above method performs when performing.
Present invention also provides a kind of pulse laser intensifying device, including memory and processor, deposited in the memory
Computer program is contained, the processor realizes the step that the above method performs when calling the computer program in the memory
Suddenly.
The invention provides a kind of method for strengthening gear part, the failure in the region to be processed of the gear part is detected
Form and outer surface curvature, and machining path is determined according to the form parameter in the region to be processed；According to the failure mode
Pulse width is determined, and spot size is determined according to the outer surface curvature；According to the pulse width and the spot size
Pulse laser is determined, intensified operation is carried out to the region to be processed along the machining path using the pulse laser.
Because each position curvature of gear and failure mode are incomplete same, if the arteries and veins using same spot size
The machining area of laser reinforcing different curvature or different failure modes is rushed, each position of gear part after strengthening can be impacted
Surface compress residual stresses it is uneven and degree of roughness is higher.Therefore this method strengthens the different curvature choosing at position according to everywhere
Corresponding spot size is selected, the different failure modes for strengthening position according to everywhere select corresponding pulse width.This method energy
It is enough that the surface waviness for reducing piece surface changes and lifts the uniformity of residual compressive stress during metal-surface strengthening,
And then the overall military service performance of gear part is improved to reduce failure probability.The application additionally provides a kind of reinforcing gear zero simultaneously
The system of part and a kind of computer-readable recording medium and a kind of pulse laser intensifying device, there is above-mentioned beneficial effect, herein
Repeat no more.
Brief description of the drawings
In order to illustrate more clearly of the embodiment of the present application, the required accompanying drawing used in embodiment will be done simply below
Introduce, it should be apparent that, drawings in the following description are only some embodiments of the present application, for ordinary skill people
For member, on the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
A kind of flow chart of the method for reinforcing gear part that Fig. 1 is provided by the embodiment of the present application；
The flow chart for another method for strengthening gear part that Fig. 2 is provided by the embodiment of the present application；
Fig. 3 is the schematic diagram that practical application middle arteries rush laser reinforcing gear part；
A kind of structural representation of the system for reinforcing gear part that Fig. 4 is provided by the embodiment of the present application.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present application clearer, below in conjunction with the embodiment of the present application
In accompanying drawing, the technical scheme in the embodiment of the present application is clearly and completely described, it is clear that described embodiment is
Some embodiments of the present application, rather than whole embodiments.Based on the embodiment in the application, those of ordinary skill in the art
The every other embodiment obtained under the premise of creative work is not made, belong to the scope of the application protection.
Fig. 1, a kind of flow of the method for reinforcing gear part that Fig. 1 is provided by the embodiment of the present application are referred to below
Figure.
Specific steps can include：
S101：The failure mode and outer surface curvature in the region to be processed of the gear part are detected, and is treated according to described
The form parameter of machining area determines machining path；
Wherein, the failure mode in the region to be processed in this step on gear is typically sentenced in advance by those skilled in the art
It is disconnected, specify different failure modes that the different parts of gear part have (main failure forms of the flank of tooth of such as gear are abrasion,
Spot corrosion, gluing；The main failure forms of the tooth root of gear are to fracture).Judgement on the failure mode in region to be processed can be with
There are a variety of methods, those skilled in the art can be set according to practical experience, be limited herein without specific.This step
In the outer surface curvature in region to be processed be generally available with what a variety of instruments or mathematical formulae were calculated.
Machining path is exactly the items in the path, in the process pulse laser of gear part movement when pulse laser is strengthened
Parameter may change, but because the Working position of gear part belongs to intrinsic reference quantity, so machining path is not
It can change.
It is understood that the shape design of the gear part of every field is not quite similar, same field different shaped
Number the shape design of gear part be also what is be not quite similar.Therefore for the gear part of same shape design, true
Determine to realize after machining path the batch production to identical gear part (i.e. without repeating to determine machining path).When successively right
, it is necessary to first carry out the machining path of this step determination in advance when the gear part of different shape construction carries out shock peening.Certainly, exist
There can also be the operation that the laser positions of pulse laser are launched in adjustment before this step, the light beam of pulse laser can be made
Vertical (i.e. normal direction overlaps) is kept with the position to be processed of gear part.
S102：Pulse width is determined according to the failure mode, and spot size is determined according to the outer surface curvature；
Wherein, because the shape design of gear different parts is different from military service operating mode, the main failure forms at each position
Also it is different.Pulse width influences shock wave penetration depth by changing pulse laser in the action time of piece surface, relatively
In each failure mode, pulse width should all have corresponding preferred value to alleviate or suppress, such as the main mistake of the flank of tooth of gear
Effect form is abrasion, spot corrosion, gluing, and the flank of tooth is needed to keep high rigidity, therefore larger pulse width values can be selected to strengthen plasticity
Layer depth is deformed, realizes introducing of the flank of tooth compared with deep-hardening layer；Such as the main failure forms of the tooth root of gear to fracture, tooth root needs to protect
Higher toughness is held, therefore smaller pulse width value can be selected to avoid part macroscopic deformation and control root surface microdeformation
Under conditions of introduce residual compressive stress distribution.
Because each position of gear part (including the flank of tooth, tooth root etc.) curvature is incomplete same, if using identical
The pulse laser of spot size (this programme acquiescence uses circular light spot) strengthens the machining area of different curvature, can impact strong
The surface compress residual stresses at each position of gear part after change are uneven and surface waviness is higher.This step is based on outer surface
Curvature selects corresponding spot size, and the gear part that can ensure to obtain after horizontal pulse intensified operation is entered has relatively low table
Face percent ripple and the distribution of uniform residual compressive stress.Such as flank of tooth curvature is relatively low, larger-diameter hot spot can be selected；Tooth root
Curvature is higher, can be with the hot spot of selection of small diameter.It is worth noting that, the failure mode of the flank of tooth also requires it with higher
Finish, and can be by reducing raising of the overlapping regions come control surface percent ripple using larger diameter hot spot.It is above-mentioned on
Comparatively the description that the pulse width and spot size of pulse laser are chosen is.
Each curvature has a most preferred spot size, it is contemplated that operability in actual applications,
Can be that each curvature range sets a relatively preferable spot size.Certainly, this step is that acquiescence there are curvature pass
In the corresponding relation of spot size, can according to corresponding to the corresponding relation searches gear part each position curvature hot spot chi
It is very little.In general, small curvature surface uses large scale hot spot, and deep camber face uses small size hot spot, and keeps in process
Overlapping rate is consistent.The overlapping rate of laser obtains after being tested by operating personnel in test part in this programme,
The concrete numerical value to overlapping rate and computed path are not limited specifically this method.
This can be before pulse laser intensified operation is carried out, by ability on the corresponding relation of curvature and spot size
Field technique personnel carry out what is largely proved, test or obtained according to practical experience, it is of course possible to a variety of correspondences that obtain be present and close
The method of system, technical staff can flexibly be selected according to the condition of this programme practical application, herein without specific limit
It is fixed.
S103：Pulse laser is determined according to the pulse width and the spot size, using the pulse laser along institute
State machining path and intensified operation is carried out to the region to be processed.
Wherein, this step is built upon on the basis of S102 obtained the pulse width and spot size of pulse laser
, certain pulse laser also has other pulse parameters (parameter such as including pulse energy) for influenceing to strengthen effect, these pulses
Parameter can be selected according to the material properties of gear part, and this step is that the above-mentioned pulse parameter of acquiescence is adapted to optimal
Value.This step does not also limit the method for obtaining other pulse parameters in addition to pulse width and spot size, art technology
Personnel can be set according to physical condition.
It is understood that the pulse laser that this step carries other positions of gear part movement progress using mechanical arm is strong
Change, laser-impact once can be moved using mechanical arm and be carried out by the way of once (i.e. point-by-point processing).The transmitting can be adjusted
Go out the position of the laser of the pulse laser, so that vertical (the i.e. method of region to be processed holding of pulse laser and gear part
To coincidence).In strengthening process, the continuous change location of mechanical arm of parts to be processed is gripped to ensure that parts to be processed connects
Receive the laser beam of vertical incidence.In the pulse laser strengthening process for carrying out same gear part, carry out each time strong
The path of change, the Curvature varying of part, the pulse width variation etc. chosen all are identicals, therefore will can once be strengthened
During all data recorded, determine machining path, inspection without repeating when being processed to identical gear part
Survey outer surface curvature, judge the steps such as failure mode.
The surface waviness that this method during metal-surface strengthening, can reduce piece surface changes and lifts remnants
The uniformity of compression, and then the overall military service performance of gear part is improved to reduce failure probability.
Fig. 2, the flow for another method for strengthening gear part that Fig. 2 is provided by the embodiment of the present application are referred to below
Figure；
Specific steps can include：
S201：The failure mode and outer surface curvature in the region to be processed of the gear part are detected, and is treated according to described
The form parameter of machining area determines machining path；
S202：Pulse width is determined according to the failure mode, and spot size is determined according to the outer surface curvature；
S203：Launch the position of the laser of the pulse laser described in regulation, to ensure the pulse laser and institute
Region normal direction to be processed is stated to overlap；
S204：Pulse laser is determined according to the pulse width and the spot size, using the pulse laser along institute
State machining path and intensified operation is carried out to the region to be processed；
S205：After detecting that the gear part is strengthened, the gear part is delivered to predeterminated position, and fill
Other gear parts are pressed from both sides to continue intensified operation.
Fig. 3 is referred to, Fig. 3 is the schematic diagram of pulse laser shock peening gear part in actual applications.1 is tooth in figure
Face region, pulse laser herein have larger pulse width and spot size, and 2 be tooth root region, pulse laser herein
With less pulse width and spot size.
Refer to Fig. 4, a kind of structural representation of the system for reinforcing gear part that Fig. 4 is provided by the embodiment of the present application
Figure；
The system can include：
Detection module 100, the failure mode and outer surface curvature in the region to be processed for detecting the gear part, and
Machining path is determined according to the form parameter in the region to be processed；
Parameter determination module 200, for determining pulse width according to the failure mode, and according to the outer surface curvature
Determine spot size；
Reinforced module 300, for determining pulse laser according to the pulse width and the spot size, utilize the arteries and veins
Impulse light carries out intensified operation along the machining path to the region to be processed.
In the embodiment for another system for strengthening gear part that the application provides, further also include：
Part module is changed, for after detecting that the gear part is strengthened, the gear part being delivered to default
Position, and other gear parts of clamping are to continue intensified operation.
Further, in addition to：
Position adjustment block, for adjusting the position of the laser for launching the pulse laser, with described in guarantee
Pulse laser overlaps with the region normal direction to be processed.
Because the embodiment of components of system as directed and the embodiment of method part are mutually corresponding, therefore the embodiment of components of system as directed please
Referring to the description of the embodiment of method part, wouldn't repeat here.
Present invention also provides a kind of computer-readable recording medium, there is computer program thereon, the computer program
The step of above-described embodiment provides can be realized when being performed.The storage medium can include：USB flash disk, mobile hard disk, read-only deposit
Reservoir (Read-Only Memory, ROM), random access memory (RandomAccess Memory, RAM), magnetic disc or light
Disk etc. is various can be with the medium of store program codes.
Present invention also provides a kind of pulse laser intensifying device, can include memory and processor, the memory
In have a computer program, when the processor calls the computer program in the memory, it is possible to achieve above-described embodiment
The step of provided.Certainly described pulse laser, which is strengthened, can also include the component such as various network interfaces, power supply.
Each embodiment is described by the way of progressive in specification, and what each embodiment stressed is and other realities
Apply the difference of example, between each embodiment identical similar portion mutually referring to.For system disclosed in embodiment
Speech, because it is corresponded to the method disclosed in Example, so description is fairly simple, related part is referring to method part illustration
.It should be pointed out that for those skilled in the art, on the premise of the application principle is not departed from, also
Some improvement and modification can be carried out to the application, these are improved and modification also falls into the application scope of the claims
It is interior.
It should also be noted that, in this manual, such as first and second or the like relational terms be used merely to by
One entity or operation make a distinction with another entity or operation, and not necessarily require or imply these entities or operation
Between any this actual relation or order be present.Moreover, term " comprising ", "comprising" or its any other variant meaning
Covering including for nonexcludability, so that process, method, article or equipment including a series of elements not only include that
A little key elements, but also the other element including being not expressly set out, or also include for this process, method, article or
The intrinsic key element of equipment.Under the situation not limited more, the key element that is limited by sentence "including a ..." is not arranged
Except other identical element in the process including the key element, method, article or equipment being also present.
Claims (8)
- A kind of 1. method for strengthening gear part, it is characterised in that including：The failure mode and outer surface curvature in the region to be processed of the gear part are detected, and according to the region to be processed Form parameter determines machining path；Pulse width is determined according to the failure mode, and spot size is determined according to the outer surface curvature；Pulse laser is determined according to the pulse width and the spot size, and utilizes the pulse laser along the processing road Footpath carries out intensified operation to the region to be processed.
- 2. method according to claim 1, it is characterised in that also include：After detecting that the gear part is strengthened, the gear part is delivered to predeterminated position, and clamping other teeth Part is taken turns to continue intensified operation.
- 3. method according to claim 1, it is characterised in that utilizing the pulse laser along the machining path to described Before region to be processed carries out intensified operation, in addition to：Launch the position of the laser of the pulse laser described in regulation, to ensure the pulse laser and the work area to be added Domain method is to coincidence.
- A kind of 4. system for strengthening gear part, it is characterised in that including：Detection module, the failure mode and outer surface curvature in the region to be processed for detecting the gear part, and according to institute The form parameter for stating region to be processed determines machining path；Parameter determination module, for determining pulse width according to the failure mode, and light is determined according to the outer surface curvature Spot size；Reinforced module, for determining pulse laser according to the pulse width and the spot size, and swashed using the pulse Light carries out intensified operation along the machining path to the region to be processed.
- 5. system according to claim 4, it is characterised in that also include：Part module is changed, for after detecting that the gear part is strengthened, the gear part to be delivered into predeterminated position, And other gear parts of clamping are to continue intensified operation.
- 6. system according to claim 4, it is characterised in that also include：Position adjustment block, for adjusting the position of the laser for launching the pulse laser, to ensure the pulse Laser overlaps with the region normal direction to be processed.
- 7. a kind of computer-readable recording medium, is stored thereon with computer program, it is characterised in that the computer program is held The method as described in any one of claims 1 to 3 is realized during row.
- 8. a kind of pulse laser intensifying device, it is characterised in that including memory and processor, meter is stored with the memory Calculation machine program, the processor are realized as described in any one of claims 1 to 3 when calling the computer program in the memory Method.
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| CN201711217300.5A CN107805705A (en) | 2017-11-28 | 2017-11-28 | A kind of method and system for strengthening gear part |
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| CN201711217300.5A CN107805705A (en) | 2017-11-28 | 2017-11-28 | A kind of method and system for strengthening gear part |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109266836A (en) * | 2018-12-03 | 2019-01-25 | 广东工业大学 | Determine the system and method for the laser power density for laser-impact |
| CN110434469A (en) * | 2018-05-03 | 2019-11-12 | 弗兰德有限公司 | Laser assisted manufacturing method and transmission mechanism for driving member |
| CN111748682A (en) * | 2020-07-08 | 2020-10-09 | 中国航发湖南动力机械研究所 | Laser strengthening method for gear tooth surface |
| CN112695157A (en) * | 2020-12-02 | 2021-04-23 | 西安必盛激光科技有限公司 | Gear laser quenching method and device capable of obtaining continuous uniform hardened layer |
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