CN106862375A - A kind of progressive molding method of use hybrid process track - Google Patents
A kind of progressive molding method of use hybrid process track Download PDFInfo
- Publication number
- CN106862375A CN106862375A CN201710082019.9A CN201710082019A CN106862375A CN 106862375 A CN106862375 A CN 106862375A CN 201710082019 A CN201710082019 A CN 201710082019A CN 106862375 A CN106862375 A CN 106862375A
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- Prior art keywords
- progressive molding
- track
- hybrid process
- product
- molding method
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D31/00—Other methods for working sheet metal, metal tubes, metal profiles
- B21D31/005—Incremental shaping or bending, e.g. stepwise moving a shaping tool along the surface of the workpiece
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
Abstract
The invention discloses one kind using hybrid process track progressive molding method, for solving the problems, such as that efficiency present in single progressive molding process and quality cannot lay equal stress on.Technical scheme is mainly comprised the following steps：(1) product 3-D geometric model is set up, and generates continuous contact progressive molding machining locus；(2) the forming limit angle for setting used plate is α, and to ensure process safety, the tool path of the part by product upper side wall inclination angle more than α n ° is changed into track of fluctuating；Regeneration paddle type mill progressive molding track；(3) the tool path point line with two neighboring trough rotates to an angle the tracing point between two troughs around the rotating shaft as rotating shaft；(4) the fluctuation machining locus of multidirectional paddle type mill progressive molding are exported with Digit Control Machine Tool or the recognizable form of special progressive molding machine；(5) machining locus of the forming tool as described in step (4) carry out the progressive molding of hybrid process track.
Description
Technical field
The present invention relates to sheet fabrication correlative technology field, more particularly to a kind of use hybrid process track it is progressive into
Shape method.
Background technology
In plate progressive molding technology, it is not necessary to which mould only needs part mould, it is only necessary to which forming tool presses numerical control knife rail
Mark advances, and i.e. formable arbitrary shape product is pushed to plate pointwise, it is adaptable to the trial-production of shelly part, personalized customization and small
Batch production, thus widely paid close attention to and studied.
During progressive molding, if instrument and plate remain contact, continuous contact progressive molding is can be described as.
If in forming process, instrument is constantly lifted and fallen while being moved along machining locus, is periodically connect with plate
Touch, then referred to as paddle type mill progressive molding.
For progressive molding performance perspective, during paddle type mill progressive molding, because can be hammered into shape by constantly adjustment
The deformation for hitting direction and hammering dynamics to control plate local, so as to control the local thickness of product.
And the forming efficiency of continuous contact progressive molding is higher, but due to not having hammering process, plate does not exist edge
The local deformation in direction is hammered, but because the forming tool generally selected is mostly bulb instrument, instrument Axial changes will not be to plate
Material deformation produces influence, thus cannot effectively overcome the main problem determined by forming angle of existing progressive molding thickness of slab.
In the prior art, there is correlative study of the part on progressive forming direction.For example, Application No.
2012103390058 Chinese patent literature provides a kind of method that plate presses progressive molding taper type part, shapes work
Tool head formation of parts to plate pointwise top pressure, after by a top pressure action, the plate around forming tool head is produced plate
Local deformation, primary deformable direction is identical with forming tool head top pressure direction, and the deformation in this direction is formation of parts needs；
The deformation of part simultaneously also includes that along part circumferential deformation in forming tool both sides equivalent reversely, this deforms circumferential deformation
It is unwanted part forming, but between due to producing the reverse deformation of equivalent simultaneously and adjacent local modified areas
Circumferential deformation can mutually suppress, and will not be superimposed to same direction, and the part after shaping would not produce circumferential torsional deformation.
In the program, by carrying out gradually top pressure to part, realize final processing purpose, but its essence be still paddle type mill it is progressive into
Shape.
From two kinds of progressive molding technique of processing efficiency angle contrast when, paddle type mill progressive molding is substantially long due to machining locus
Substantially reduced in continuous contact progressive molding, therefore processing efficiency.But in the process of product, if all using company
Then, often there is the precipitous part of workpiece and is difficult to once to succeed the problem of shaping in continued access touch progressive molding；If all using paddle type mill
Progressive molding, then the processing efficiency of whole product is substantially beneath.
In sum, in the prior art for how to realize the problem that sheet material high-effect high-quality is processed, still lacking has
The solution of effect.
The content of the invention
In order to solve what quality present in progressive molding process present in prior art and efficiency cannot be taken into account
Deficiency, the invention provides a kind of progressive molding method of use hybrid process track.The present invention make full use of two kinds it is progressive into
The advantage of shape technique, reaches the purpose of the forming property and processing efficiency of taking into account plate, additionally it is possible to promote progressive molding technology to obtain
To being more widely applied.
The present invention is adopted the following technical scheme that：
One kind is comprised the following steps using hybrid process track progressive molding method：
(1) product 3-D geometric model is set up, and generates continuous contact progressive molding machining locus；
(2) the forming limit angle for setting used plate is α, to ensure process safety, by product upper side wall inclination angle more than α-
The tool path of n ° of part is changed into track of fluctuating；
The machining locus of track regions of fluctuating are exported with meeting the discrete point of certain forming accuracy, it is perpendicular to be directed upwardly into sine
Fluctuation, generation paddle type mill progressive molding track；
(3) according to product in the actual inclination angle at the precipitous place and the forming property of the plate for being used, with two neighboring ripple
The tool path point line of paddy is rotating shaft, and the tracing point between two troughs is rotated to an angle around the rotating shaft；
(4) fluctuation of multidirectional paddle type mill progressive molding is exported with Digit Control Machine Tool or the recognizable form of special progressive molding machine
Machining locus；
(5) machining locus of the forming tool as described in step (4) carry out the progressive molding of hybrid process track.
In above-mentioned method, it is preferred that in step (1), carry out setting up product three-dimensional several using three-dimensional CAD/CAM softwares
What model.
In above-mentioned method, it is preferred that in step (2), the hammering angle of paddle type mill progressive molding track is 90 °.
In above-mentioned method, it is preferred that in step (2), the span of n is 5 ° -20 °.
In above-mentioned method, it is preferred that in step (2), n is 10 °.
In above-mentioned method, it is preferred that before carrying out step (5), it is ensured that the combination of the geometric center and fixture of product
Center superposition.
In the prior art, the continuous contact progressive molding technology for generally using, it is difficult to overcome the forming limit angle of plate
Limitation.It is local precipitous when occurring in product, i.e., forming angle big position when, plate is easily produced brokenly because local thickness is excessively thin
Split.
Common solution is the progressive molding using multi-pass, by repeatedly " from the top bottom of to " and " bottom of to pushing up " come
Successive adjustment thickness of slab.But multi-pass progressive molding is added significantly to curring time, and pilot process is difficult to rationally control.
The limitation at forming limit angle can be broken through using multidirectional paddle type mill progressive molding, single pass can shaped side walls inclination angle
Big region, but have the shortcomings that total elapsed time is long.
The beneficial effects of the present invention are：
Using hybrid process track progressive molding method, multidirectional paddle type mill progressive molding is used at the precipitous place of product,
Remaining shallower region has used continuous paddle type mill progressive molding common, has reached the forming property of taking into account plate and processing is imitated
The purpose of rate.
Because heretofore described multidirectional hammering progressive molding is, by the method for numerical control programming, to be by the establishment of cutter track track
The multidirectional hammering action of implementation tool is carried out in fluctuation track, therefore can smoothly be connected with common contact progressive molding, is not required to
Want extra operation and equipment, it is only necessary to be capable of achieving on Milling Motion in Three-axes NC and special progressive molding machine, easy to implement, plate
Forming property it is good, forming efficiency is high, contribute to promote progressive molding technology be more widely applied.
Brief description of the drawings
The Figure of description for constituting the part of the application is used for providing further understanding of the present application, and the application's shows
Meaning property embodiment and its illustrated for explaining the application, does not constitute the improper restriction to the application.
Fig. 1 is the schematic diagram of the machining locus product process of hybrid process track progressive molding method.
Specific embodiment
It is noted that described further below is all exemplary, it is intended to provide further instruction to the application.Unless another
Indicate, all technologies used herein and scientific terminology are with usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
Be also intended to include plural form, additionally, it should be understood that, when in this manual use term "comprising" and/or " bag
Include " when, it indicates existing characteristics, step, operation, device, component and/or combinations thereof.
Embodiment 1：It is precipitous in the presence of continuous contact machine-shaping workpiece in the prior art as background technology is introduced
Part is difficult to, the deficiency of the progressive processing and forming inefficiency of paddle type mill, and in order to solve technical problem as above, the application is carried
A kind of progressive molding method of use hybrid process track is gone out.In the case where specific software and material specification is combined, its master
Wanting process includes：
(1) three-dimensional CAD model of varied angle circular cone cup is set up with UGNX8.0, cone cup bus is circular arc line, and radius is
100m, cone cup opening size is 100mm, and the excursion of angle is 20 °~90 °.With processing module, continuous contact is generated gradually
Enter the machining locus of shaping；
(2) two kinds of implementation regions of progressive molding machining locus are determined.Due to the sheet thickness employed in the present embodiment
It is the plate of commercial-purity aluminium 1060 of 1mm, its forming limit angle is 70 ° or so, therefore opening portion, and side wall inclination angle is 20 °~60 °
Part, still using continuous contact progressive molding, is not required to be changed into the tool processes track of fluctuation.And side wall inclination angle be 60 °~
90 ° of bottom section, then using multidirectional paddle type mill progressive molding, it is fluctuation track to need the machining locus of transformation tool；
(3) machining locus of multidirectional paddle type mill progressive molding part are generated.By the machining locus of bottom section with 0.02mm
Forming accuracy discrete point output.It is 24 that set each wavelength should meet the number of tracing point, linear by Lagrange
Interpolation method clicks through row interpolation to foregoing discrete machining locus, obtains new machining locus point；
In the vertical direction, introduces sinusoidal fluctuation, and the sinusoidal wavelength X of selection is 0.5mm, and amplitude A is 0.5mm, the water of instrument
Flat feed speed v is 300mm/min.Generation hammering angle is 90 ° of paddle type mill progressive molding track.With the work of two neighboring trough
Tool tracing point line is rotating shaft, the tracing point between two troughs is rotated into 45 ° around the rotating shaft, and generate new cutter track track；
(4) the fluctuation machining locus of progressive molding are exported with Digit Control Machine Tool or the recognizable form of special progressive molding machine；
(5) it is the plate of commercial-purity aluminium 1060 of 1mm to use thickness, and plate is cutting into 240 × 240mm, makes the geometry of plate
Center overlaps with the geometric center of forming jig, pushes down plate surrounding 15mm clampings；
The fluctuation track data that machining tool is generated under the control of lathe according to step (4) carries out pointwise progressive molding.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or uses the present invention.
Various modifications to embodiment will be apparent for those skilled in the art, as defined herein general
Principle can in other embodiments be realized, is not described in detail without departing from the spirit or scope of the present invention
The part presented with partial enlargement, is prior art, is not repeated herein.Therefore, the present invention is not intended to be limited to herein
These shown embodiments, and it is to fit to the most wide scope consistent with principles disclosed herein and feature.
Claims (6)
1. it is a kind of to use hybrid process track progressive molding method, it is characterised in that to comprise the following steps：
(1) product 3-D geometric model is set up, and generates continuous contact progressive molding machining locus；
(2) the forming limit angle for setting used plate is α, to ensure process safety, product upper side wall inclination angle is more than into-n ° of α's
Partial tool path is changed into track of fluctuating；
The machining locus of track regions of fluctuating are exported with meeting the discrete point of certain forming accuracy, it is perpendicular to be directed upwardly into sine wave
It is dynamic, generation paddle type mill progressive molding track；
(3) according to product in the actual inclination angle at the precipitous place and the forming property of the plate for being used, with two neighboring trough
Tool path point line is rotating shaft, and the tracing point between two troughs is rotated to an angle around the rotating shaft；
(4) fluctuation for exporting multidirectional paddle type mill progressive molding with Digit Control Machine Tool or the recognizable form of special progressive molding machine is processed
Track；
(5) machining locus of the forming tool as described in step (4) carry out the progressive molding of hybrid process track.
2. use hybrid process track progressive molding method according to claim 1, it is characterised in that in step (1), adopt
Carry out setting up product 3-D geometric model with three-dimensional CAD/CAM softwares.
3. use hybrid process track progressive molding method according to claim 1, it is characterised in that in step (2), hammer
The hammering angle for hitting formula progressive molding track is 90 °.
4. use hybrid process track progressive molding method according to claim 1, it is characterised in that in step (2), n
Span be 5 ° -20 °.
5. use hybrid process track progressive molding method according to claim 1, it is characterised in that in step (2), n
It is 10 °.
6. use hybrid process track progressive molding method according to claim 1, it is characterised in that carry out step (5)
Before, it is ensured that the geometric center of product and the combination center superposition of fixture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710082019.9A CN106862375B (en) | 2017-02-15 | 2017-02-15 | A kind of progressive molding method using hybrid process track |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710082019.9A CN106862375B (en) | 2017-02-15 | 2017-02-15 | A kind of progressive molding method using hybrid process track |
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| Publication Number | Publication Date |
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| CN106862375A true CN106862375A (en) | 2017-06-20 |
| CN106862375B CN106862375B (en) | 2018-05-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710082019.9A Expired - Fee Related CN106862375B (en) | 2017-02-15 | 2017-02-15 | A kind of progressive molding method using hybrid process track |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113857342A (en) * | 2021-09-08 | 2021-12-31 | 上海交通大学 | Method for improving stirring friction incremental forming performance of thin-wall forming part |
| CN114211000A (en) * | 2021-12-16 | 2022-03-22 | 上海工程技术大学 | Selective laser melting method for reducing alloy surface cracks |
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| EP1462189A1 (en) * | 2003-03-28 | 2004-09-29 | Hitachi, Ltd. | Method and apparatus for incremental forming |
| WO2006110962A2 (en) * | 2005-04-22 | 2006-10-26 | K.U.Leuven Research And Development | Asymmetric incremental sheet forming system |
| CN101947597A (en) * | 2010-07-26 | 2011-01-19 | 浙江工业大学 | Gradual die-less forming method |
| CN102554007A (en) * | 2012-02-09 | 2012-07-11 | 上海交通大学 | Sheet drawing and incremental forming combined device |
| CN103071726A (en) * | 2013-02-07 | 2013-05-01 | 江西理工大学 | Single-point longitudinal vibration controllable progressive forming system for metal plate |
| US20130263639A1 (en) * | 2012-04-05 | 2013-10-10 | Toyota Jidosha Kabushiki Kaisha | Metal plate forming method |
| CN104384310A (en) * | 2014-09-24 | 2015-03-04 | 安徽工业大学 | Incremental forming method with auxiliary base for plates |
| DE102013019397A1 (en) * | 2013-11-18 | 2015-05-21 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | forming mandrel |
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2017
- 2017-02-15 CN CN201710082019.9A patent/CN106862375B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1462189A1 (en) * | 2003-03-28 | 2004-09-29 | Hitachi, Ltd. | Method and apparatus for incremental forming |
| WO2006110962A2 (en) * | 2005-04-22 | 2006-10-26 | K.U.Leuven Research And Development | Asymmetric incremental sheet forming system |
| CN101947597A (en) * | 2010-07-26 | 2011-01-19 | 浙江工业大学 | Gradual die-less forming method |
| CN102554007A (en) * | 2012-02-09 | 2012-07-11 | 上海交通大学 | Sheet drawing and incremental forming combined device |
| US20130263639A1 (en) * | 2012-04-05 | 2013-10-10 | Toyota Jidosha Kabushiki Kaisha | Metal plate forming method |
| CN103071726A (en) * | 2013-02-07 | 2013-05-01 | 江西理工大学 | Single-point longitudinal vibration controllable progressive forming system for metal plate |
| DE102013019397A1 (en) * | 2013-11-18 | 2015-05-21 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | forming mandrel |
| CN104384310A (en) * | 2014-09-24 | 2015-03-04 | 安徽工业大学 | Incremental forming method with auxiliary base for plates |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113857342A (en) * | 2021-09-08 | 2021-12-31 | 上海交通大学 | Method for improving stirring friction incremental forming performance of thin-wall forming part |
| CN114211000A (en) * | 2021-12-16 | 2022-03-22 | 上海工程技术大学 | Selective laser melting method for reducing alloy surface cracks |
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| Publication number | Publication date |
|---|---|
| CN106862375B (en) | 2018-05-01 |
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Granted publication date: 20180501 Termination date: 20190215 |