CN101288884A - Method for processing three-dimensional curved surface metal plate like piece - Google Patents
Method for processing three-dimensional curved surface metal plate like piece Download PDFInfo
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- CN101288884A CN101288884A CNA2008101145962A CN200810114596A CN101288884A CN 101288884 A CN101288884 A CN 101288884A CN A2008101145962 A CNA2008101145962 A CN A2008101145962A CN 200810114596 A CN200810114596 A CN 200810114596A CN 101288884 A CN101288884 A CN 101288884A
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Abstract
The invention discloses a method for processing three-dimensional curve metal plates, which is characterized in that according to the forming requirement of the plate, a type that multi-point forming and movable thermal source line heating forming are combined with each other is used for processing the metal plates; by once or a plurality of times of processing disposal, the required three-dimensional curve shape is finally achieved. The method of the invention adopts a method that the multi-point forming method and the movable thermal source line heating forming method are combined with each other; the two methods assist each other, so as to improve the processing precision, reduce the force loaded in the subsequent multi-point forming process, the cost and the times of repeated heating in the movable thermal source line heating forming, and is beneficial to reducing the stress in the plate after the plate is formed as well as ensure the stability of the plate shape after forming.
Description
Technical field
The present invention relates to field of machining, particularly a kind of method of processing three-dimensional curved surface metal plate like piece.
Background technology
Processing has two kinds of processing methods usually to metal plate like piece at present, a kind of is moving heat source line heating manufacturing process, and it is to utilize the metallic plate part to be subjected to the localized heat elastoplasticity contraction distortion of high temperature, cooling (cooling or water cooling naturally) back generation and a kind of forming technology of reaching integrally bending.This method is when the less plate formed parts of processing curvature, efficient is higher, when big or sheet material is thicker when the member curvature of require processing, then can't time processing be shaped, need on the position of former heater wire, repeat heating, repeat to heat number of times and too much will cause workpiece mechanical performance and surface quality to descend.Another kind is the multi-point forming method, and it is to utilize upper and lower element body group directly sheet material to be loaded to make it imposed deformation.Utilize the flexibility and the digitlization manufacture characteristic of multi-point forming equipment, adopt the multi-point forming method can realize the shaping of different curve, improved forming efficiency and forming accuracy.But the thickness of workpiece of working as processing is bigger, and when having a large amount of bending shape structures, need upper and lower element body group to apply very big load, simultaneously, because this method all has higher requirement to the upper and lower element body group in the multi-point forming equipment and rigidity, intensity and the forming pressure of loading structure, therefore cost is higher, and this method can't be processed the bigger sheet deformation of the relative length and width of thickness.
Summary of the invention
At the problem that prior art exists, the object of the present invention is to provide the method for a kind of laborsaving, low-cost, high efficiency, high accuracy processing three-dimensional curved surface metal plate like piece.
For achieving the above object, the method of a kind of processing three-dimensional curved surface metal plate like piece of the present invention, this method is specially: according to the forming requirements of sheet material, the mode of selecting multi-point forming and moving heat source line heating shaping to combine is come the processing metal plate accessory, reaches desired three-dimension curved surface shape until it.
Further, described moving heat source line adds the heating of thermal recovery single track.
Further, described moving heat source line adds the heating of thermal recovery multiple tracks.
Further, after described moving heat source line heating while or the heating, carry out water-cooled.
Further, after the described moving heat source line heating, can carry out the nature cooling.
Further, described multi-point forming can one-sidedly load.
Further, but described multi-point forming bilateral load.
Further, the big I of load(ing) point position, load(ing) point displacement and the loading force of the loading of the multiple spot in the described multi-point forming adopts control system to regulate.
Further, described control system can adopt intelligence control methods such as artificial intelligence or expert system.
Further, described control system comprises loading force measurement and reponse system.
The present invention adopts the method that the heating of moving heat source line is shaped and multi-point forming combines in sheet material processing, sheet material forming is being added man-hour, carry out moving heat source line heating operation, the plastic deformation of sheet material is strengthened, reduced local residual stress, the material resilience is reduced, and carry out water cooling, make the plastic deformation of sheet material further strengthen, allow sheet material that bigger bending distortion is arranged, reduced the power that is loaded in the follow-up multi-point forming process, reduced cost, solved the heating of moving heat source line simultaneously and be shaped and can't time processing be shaped and the problem that need repeat to heat, also helped to be lowered into the stress in the sheet material after the shape, the stability of the back sheet material shape that guarantees to be shaped.
Description of drawings
Fig. 1 is the simple structure schematic diagram of processing three-dimensional curved surface metal plate like piece device;
Fig. 2 is the structural representation of multi-point forming load mode of the present invention.
The specific embodiment
Embodiment 1:
As shown in Figure 1, adopt and carry out the method that multiple spot loads after the heating of first moving heat source line sheet material is processed.At first, heating source 2 positions are set, sheet material is carried out single track heating or multiple tracks is heated to a certain shape 4, and in heating process or after the heating, carry out water-cooled, owing to be obstructed in expansion process in the local heat district, produced compressive plastic deformation, reduced local residual stress, the material resilience is reduced.Secondly, when these shape 4 states sheet material is carried out the multiple spot loading and shaping, the form (element body group loading force direction is pressure or pulling force) that adopts upper and lower element body group 1 bilateral to load just can make sheet material reach final shaped state 3 with less loading force.The required loading force of sheet material reduces, and to the also corresponding reduction of rigidity, intensity and forming pressure of upper and lower element body group 1 and loading structure, has reduced cost accordingly.
In addition, when the required power of sheet deformation hour, carrying out multiple spot when loading, can carry out one-sided loading and can reach final required three-dimension curved surface shape.As shown in Figure 2, universal joint 6 is installed, is fixed with strong magnet 7 on it,, realize the target of processing plate shaping by regulating element body group's displacement at following element body group's 5 drift end.
Embodiment 2:
Carry out the heating of moving heat source line after adopting first multiple spot to load.As shown in Figure 1, consider the resilience of sheet material, utilize control system to adjust upper and lower element body group 1 in advance, sheet material is carried out multiple spot be loaded on a certain shape 4, adopt heating of moving heat source line and water cooling again, reach final objective forming face 3.
Embodiment 3:
Adopt heating of moving heat source line and multiple spot to load the method that hockets.As shown in Figure 1, carry out line after heating a period of time with moving heat source earlier, adopt 1 pair of sheet material bilateral loading of upper and lower element body group or one-sided loading to carry out multi-point forming again, when carrying out the thermal source wire heating, heating location can change according to shaped state, utilizes control system to regulate element body group load(ing) point path, the size of loaded load again, above-mentioned dual mode hockets, until reaching final sheet material forming face.
Embodiment 4:
Adopting heating of moving heat source line and multiple spot to load the mode of carrying out simultaneously processes sheet material.The heating source position is set, utilizes control system to regulate element body group load(ing) point path, the size of loaded load, dual mode to sheet material processing, had both improved working (machining) efficiency simultaneously, can guarantee forming effect, forming accuracy again.
Claims (10)
1. the method for a processing three-dimensional curved surface metal plate like piece, this method is specially: according to the forming requirements of sheet material, the mode of selecting multi-point forming and moving heat source line heating shaping to combine is come the processing metal plate accessory, reaches desired three-dimension curved surface shape until it.
2. the method for a kind of processing three-dimensional curved surface metal plate like piece as claimed in claim 1 is characterized in that, described moving heat source line adds the heating of thermal recovery single track.
3. the method for a kind of processing three-dimensional curved surface metal plate like piece as claimed in claim 1 is characterized in that, described moving heat source line adds the heating of thermal recovery multiple tracks.
4. the method for a kind of processing three-dimensional curved surface metal plate like piece as claimed in claim 1 is characterized in that, after described moving heat source line heating while or the heating, carries out water-cooled.
5. the method for a kind of processing three-dimensional curved surface metal plate like piece as claimed in claim 1 is characterized in that, after the described moving heat source line heating, can carry out the nature cooling.
6. the method for a kind of processing three-dimensional curved surface metal plate like piece as claimed in claim 1 is characterized in that, the load mode in the described multi-point forming is one-sided loading.
7. the method for a kind of processing three-dimensional curved surface metal plate like piece as claimed in claim 1 is characterized in that, the load mode in the described multi-point forming is that bilateral loads.
8. the method for a kind of processing three-dimensional curved surface metal plate like piece as claimed in claim 1 is characterized in that, the big I of load(ing) point position, load(ing) point displacement and the loading force that the multiple spot in the described multiple spot moulding loads adopts control system to regulate.
9. the method for a kind of processing three-dimensional curved surface metal plate like piece as claimed in claim 8 is characterized in that, the control algolithm of described control system adopts artificial intelligence or expert system intelligence control method.
10. the method for a kind of processing three-dimensional curved surface metal plate like piece as claimed in claim 9 is characterized in that, described control system comprises loading force measurement and reponse system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101145962A CN101288884A (en) | 2008-06-10 | 2008-06-10 | Method for processing three-dimensional curved surface metal plate like piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101145962A CN101288884A (en) | 2008-06-10 | 2008-06-10 | Method for processing three-dimensional curved surface metal plate like piece |
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| CN101288884A true CN101288884A (en) | 2008-10-22 |
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| CNA2008101145962A Pending CN101288884A (en) | 2008-06-10 | 2008-06-10 | Method for processing three-dimensional curved surface metal plate like piece |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102728706A (en) * | 2012-06-18 | 2012-10-17 | 吉林大学 | Method for continuously and unevenly compressing and forming three-dimensional curved surface |
| CN104393717B (en) * | 2014-12-15 | 2016-08-10 | 上海电气集团上海电机厂有限公司 | A kind of shape adjusting method of multi-point forming flexible die |
| CN110405053A (en) * | 2019-08-05 | 2019-11-05 | 南京工程学院 | A kind of progressive molding auxiliary device for heat treating and its hot-working method |
| CN114309260A (en) * | 2021-12-22 | 2022-04-12 | 大连理工大学 | Method for improving single-curved-surface laser bending forming precision of fiber metal laminate |
-
2008
- 2008-06-10 CN CNA2008101145962A patent/CN101288884A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102728706A (en) * | 2012-06-18 | 2012-10-17 | 吉林大学 | Method for continuously and unevenly compressing and forming three-dimensional curved surface |
| CN102728706B (en) * | 2012-06-18 | 2014-04-09 | 吉林大学 | Method for continuously and unevenly compressing and forming three-dimensional curved surface |
| CN104393717B (en) * | 2014-12-15 | 2016-08-10 | 上海电气集团上海电机厂有限公司 | A kind of shape adjusting method of multi-point forming flexible die |
| CN110405053A (en) * | 2019-08-05 | 2019-11-05 | 南京工程学院 | A kind of progressive molding auxiliary device for heat treating and its hot-working method |
| CN114309260A (en) * | 2021-12-22 | 2022-04-12 | 大连理工大学 | Method for improving single-curved-surface laser bending forming precision of fiber metal laminate |
| CN114309260B (en) * | 2021-12-22 | 2022-08-30 | 大连理工大学 | Method for improving single-curved-surface laser bending forming precision of fiber metal laminate |
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Open date: 20081022 |