CN105058796A - High polymer board incremental forming method based on metal backboard supporting - Google Patents
High polymer board incremental forming method based on metal backboard supporting Download PDFInfo
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- CN105058796A CN105058796A CN201510482596.8A CN201510482596A CN105058796A CN 105058796 A CN105058796 A CN 105058796A CN 201510482596 A CN201510482596 A CN 201510482596A CN 105058796 A CN105058796 A CN 105058796A
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- macromolecule
- high polymer
- sheet material
- progressive
- forming
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- 238000000034 method Methods 0.000 title claims abstract description 32
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 23
- 239000002184 metal Substances 0.000 title claims abstract description 23
- 229920000642 polymer Polymers 0.000 title abstract description 14
- 229920002521 macromolecule Polymers 0.000 claims description 49
- 239000000463 material Substances 0.000 claims description 45
- 230000000750 progressive effect Effects 0.000 claims description 36
- 238000000465 moulding Methods 0.000 claims description 28
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 239000004411 aluminium Substances 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 238000007493 shaping process Methods 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 abstract description 17
- 238000003754 machining Methods 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000012356 Product development Methods 0.000 description 1
- 238000000071 blow moulding Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a high polymer board incremental forming method based on metal backboard supporting. The method has the beneficial effects that firstly, a metal backboard provides effective rigidity and strength supporting for a high polymer board, reverse pressure can be exerted on a high polymer part through forming and rebounding, the stress condition of the high polymer part is effectively improved, and the high polymer part can be effectively prevented from being twisted and deformed partially in the machining process; secondly, the overall twist and deviation of the high polymer part in the forming process can be effectively avoided through the metal backboard; thirdly, the partial necking and thinning of the high polymer machined part can be effectively controlled through the rigidity supporting of the metal backboard, and the thickness of the high polymer machined part can be effectively controlled; and fourthly, the adaptability of an incremental forming process is improved, and application and popularization of the incremental forming technology in machining of the high polymer part are facilitated.
Description
Technical field
The present invention relates to the progressive forming method of a kind of macromolecule sheet material, belong to the progressive molding processing technique field of macromolecule sheet material.
Background technology
Plate progressive molding (IncrementalSheetForming, ISF) be that the one proposed by the Leszak of the U.S. sixties in last century is without mould flexible forming technology, the nineties is made further research this technology by the luxuriant husband in Songyuan City etc. of Japan, causes the attention of scholars gradually.Progressive molding technology is a kind of based on the advanced manufacturing technology on computer technology, Numeric Control Technology and plastic forming technology basis, its main feature introduces the thought of " Layered manufacturing " in rapid prototype manufacturing, complex product three-dimensional CAD model is separated into many sectional layers along shaping axis direction, namely a series of contour layer is resolved into, and the machining locus generated in each contour aspect, forming tool head moves along the machining locus on this contour layer under the control of the computer, carries out progressive plastic processing to sheet material.Progressive molding has a series of features such as degree of flexibility is high, production cost is low, product development cycle is short, to receive extensive concern and the research of scholars in recent years.
Except processing metal sheet material, current progressive molding technique is utilized to processing macromolecule sheet material gradually.The macromolecule formed machining such as traditional injection molded, rotation molding, blow molding is all adopt mould to produce in enormous quantities.For small lot, single-piece processing, existing forming technology is difficult to satisfy the demands, and utilizes progressive molding technology can well realize low cost, the high efficiency processing of single, small lot macromolecule part, can greatly shorten the research and development of products cycle.
Macromolecular material has reasonable ductility, so its progressive molding is functional, progressive molding limiting angle is general also larger.But relative to sheet metal, rigidity, the intensity of macromolecule sheet material are poor, easily produce unstability torsional deformation when being subject to larger External Force Acting.As shown in Figure 3, the active force that in progressive molding process, sheet material is subject to tool heads can be analyzed to axial force P
z, radial load P
r, tangential force P
θ, except detrusion, these power can produce certain moment of flexure and moment of torsion to part, and along with the increase of working depth, tool heads also can increase gradually to the moment of flexure of high molecular forming part, moment of torsion.Meanwhile, because the friction repeatedly of tool heads and macromolecule blank can cause plate temperature to raise in progressive molding, because macromolecular material is more responsive to temperature, when exceeding certain critical-temperature, it is softening that material can occur to a certain degree.In progressive molding process under temperature rise and curved torsional interaction, Process Technology of Polymer part due to poor rigidity be easy to produce torsional deformation, this also directly has influence on the processed and applied of progressive molding technique in macromolecule sheet material.
Summary of the invention
For solving the deficiencies in the prior art, the object of the present invention is to provide one can effectively improve sheet material force-bearing situation, realizing the progressive molding processing of macromolecule sheet material, effectively improving the process of the macromolecule sheet material progressive molding of the crudy of part.
In order to realize above-mentioned target, the present invention adopts following technical scheme:
Based on the progressive forming method of macromolecule sheet material that metal backing supports, it is characterized in that, comprise the steps:
1) according to macromolecule part shape, its shaping principal direction is determined;
2) according to step 1) in part forming principal direction, find out the maximum forming angle of part
3) metallic support backboard is selected according to macromolecule part material and thickness;
4) the progressive molding limiting angle θ of metallic support backboard is measured
max, and make
5) the metallic support backboard chosen is placed in below macromolecule sheet material, and utilizes fastener to be fixed at two ends;
6) according to part C AD model, the progressive molding processing numerical control code of macromolecule part is generated;
7) input processing numerical control code in lathe, completes part processing.
Aforesaid a kind of progressive forming method of macromolecule sheet material supported based on metal backing, is characterized in that, described step 2) middle forming angle
for Working position method vows the angle with Z axis.
Aforesaid a kind of progressive forming method of macromolecule sheet material supported based on metal backing, is characterized in that, described step 3) in, supporting back board Material selec-tion aluminium sheet or copper coin; The thickness of supporting back board gets the 1/3-1/2 of macromolecule sheet metal thickness.
The beneficial effect that the present invention reaches: 1) metal backing is rigidity, the strength support that macromolecule sheet material provides effect, Form springback applies buffer brake can to macromolecule part simultaneously, effectively improve the force-bearing situation of macromolecule part, can effectively avoid the bird caging of macromolecule part work in-process to be out of shape; 2) metal backing effectively can improve the overall distortion deflection in macromolecule part forming; 3) metal backing rigid support can effectively control Process Technology of Polymer part local constriction thinning, effective control of Process Technology of Polymer part thickness can be realized; 4) improve the adaptability of progressive molding technique, contribute to progressive molding technology promoting the use of in the processing of macromolecule part.
Accompanying drawing explanation
Fig. 1 is supporting back board schematic diagram;
Fig. 2 is supporting back board fundamental diagram;
Fig. 3 is incremental forming with successive wrap surfaces Force principle figure.
The implication of Reference numeral in figure:
1-tool heads, 2-clamping device, 3-metal backing, 4-macromolecule sheet material.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.Following examples only for technical scheme of the present invention is clearly described, and can not limit the scope of the invention with this.
A kind of progressive forming method of macromolecule sheet material supported based on metal backing that the present invention relates to, effectively can improve the quality of macromolecule sheet material progressive molding part, specifically comprise the steps:
1) according to macromolecule part shape, its shaping principal direction is determined.
2) according to step 1) in part forming principal direction, find out the maximum forming angle of part
here forming angle
for Working position method vows the angle with Z axis.
3) select metallic support backboard according to macromolecule part material and thickness, supporting back board Material selec-tion aluminium sheet or copper coin here, the especially good aluminium sheet of plasticity and copper coin, the thickness of supporting back board generally gets the 1/3-1/2 of macromolecule sheet metal thickness.
4) the progressive molding limiting angle θ of metallic support backboard is measured
max, and make
mainly prevent before macromolecule part completes processing, metallic support backboard is because exceeding self limit forming angle θ
maxand break too early, intensity, the rigidity of rupture location can sharply decline, and cannot provide necessary support force to Process Technology of Polymer part simultaneously, do not reach due support effect.
5) the metallic support backboard chosen is placed in below macromolecule sheet material, and utilizes fastener to be fixed at two ends.
6) according to part C AD model, the progressive molding processing numerical control code of macromolecule part is generated.
7) input processing numerical control code in lathe, completes part processing.
In prior art, macromolecule sheet material is all poor relative to sheet metal rigidity, intensity, simultaneously more responsive to temperature, when in processing due to friction heats material after the critical point reaching certain can deliquescing to a certain degree, in progressive molding under the by-local forces of tool heads to sheet material, be easy to cause macromolecule sheet material to produce unstability distortion.Meanwhile, due to macromolecular material temperature raise softening after, in process very material to be easy to that constriction occurs in temperature higher position thinning, drip molding thickness no longer meets the cosine law
cause thickness uncontrollable.
And in this method, the metallic support backboard of selection suitable material, thickness is placed in below macromolecule sheet material, be that macromolecule sheet material provides support when being shaped, the rigidity that gripper shoe is higher, intensity, and the elastic recovery in forming process applies external pressure P can to macromolecule part, as shown in Figure 3, effectively can improve the force-bearing situation of macromolecule sheet material in progressive molding, the problems such as solution high molecular forming part unstability, distortion and thickness constriction are thinning, effectively promote the progressive molding quality of macromolecule sheet material.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the technology of the present invention principle; can also make some improvement and distortion, these improve and distortion also should be considered as protection scope of the present invention.
Claims (3)
1., based on the progressive forming method of macromolecule sheet material that metal backing supports, it is characterized in that, comprise the steps:
1) according to macromolecule part shape, its shaping principal direction is determined;
2) according to step 1) in part forming principal direction, find out the maximum forming angle of part
3) metallic support backboard is selected according to macromolecule part material and thickness;
4) the progressive molding limiting angle θ of metallic support backboard is measured
max, and make
5) the metallic support backboard chosen is placed in below macromolecule sheet material, and utilizes fastener to be fixed at two ends;
6) according to part C AD model, the progressive molding processing numerical control code of macromolecule part is generated;
7) input processing numerical control code in lathe, completes part processing.
2. a kind of progressive forming method of macromolecule sheet material supported based on metal backing according to claim 1, is characterized in that, described step 2) middle forming angle
for Working position method vows the angle with Z axis.
3. a kind of progressive forming method of macromolecule sheet material supported based on metal backing according to claim 1, is characterized in that, described step 3) in, supporting back board Material selec-tion aluminium sheet or copper coin; The thickness of supporting back board gets the 1/3-1/2 of macromolecule sheet metal thickness.
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| CN201510482596.8A CN105058796B (en) | 2015-08-07 | 2015-08-07 | High polymer board incremental forming method based on metal backboard supporting |
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|---|---|---|---|
| CN201510482596.8A CN105058796B (en) | 2015-08-07 | 2015-08-07 | High polymer board incremental forming method based on metal backboard supporting |
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| CN105058796B CN105058796B (en) | 2017-04-19 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106825212A (en) * | 2017-02-15 | 2017-06-13 | 青岛理工大学 | Method for judging breakage of multidirectional hammering type gradually-formed plate |
| CN108273903A (en) * | 2016-12-29 | 2018-07-13 | 福特全球技术公司 | Utilize the method and apparatus of the contact pilotage progressive molding prototype part of heating |
| CN109968643A (en) * | 2019-03-28 | 2019-07-05 | 厦门大学嘉庚学院 | Three D thermo shaping method of plastic sheet numerical control |
| CN110369853A (en) * | 2019-07-26 | 2019-10-25 | 上海交通大学 | A kind of laminated plate two point synchronized links and progressive compound molding device and method |
| CN110465584A (en) * | 2019-08-05 | 2019-11-19 | 南京工程学院 | A kind of progressive molding limit test method of mesh plate |
| CN110815846A (en) * | 2019-11-22 | 2020-02-21 | 上海交通大学 | Progressive forming device and method for thermoplastic resin-based braided composite material |
| CN112528424A (en) * | 2020-11-03 | 2021-03-19 | 南京工程学院 | Method for improving incremental forming performance of plate |
| CN112588976A (en) * | 2020-10-29 | 2021-04-02 | 浙江合众新能源汽车有限公司 | Plate incremental forming method |
| CN112659562A (en) * | 2020-12-23 | 2021-04-16 | 上海交通大学 | Method for flexibly connecting polymer plate and foam metal dissimilar material through thermal radiation |
| CN113042618A (en) * | 2021-03-15 | 2021-06-29 | 武汉理工大学 | Incremental forming method for large-scale component |
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| CN103341943A (en) * | 2013-06-10 | 2013-10-09 | 青岛理工大学 | High-pressure hot air incremental forming device and method for plastic plate |
| CN103861927A (en) * | 2014-03-18 | 2014-06-18 | 哈尔滨工业大学 | Multi-point male die liquid-filling drawing forming device and method for plate |
| CN104138946A (en) * | 2014-06-27 | 2014-11-12 | 中国商用飞机有限责任公司 | Auxiliary padding bending and forming method for variable thickness thin-walled member |
| CN104607523A (en) * | 2015-02-13 | 2015-05-13 | 上海交通大学 | Incremental sheet metal stirring composite forming device and method |
| CN104690138A (en) * | 2015-02-28 | 2015-06-10 | 山东科技大学 | Magnesium alloy plate ultrasonic vibration single-point incremental forming device and incremental forming method thereof |
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Patent Citations (5)
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| CN103341943A (en) * | 2013-06-10 | 2013-10-09 | 青岛理工大学 | High-pressure hot air incremental forming device and method for plastic plate |
| CN103861927A (en) * | 2014-03-18 | 2014-06-18 | 哈尔滨工业大学 | Multi-point male die liquid-filling drawing forming device and method for plate |
| CN104138946A (en) * | 2014-06-27 | 2014-11-12 | 中国商用飞机有限责任公司 | Auxiliary padding bending and forming method for variable thickness thin-walled member |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108273903A (en) * | 2016-12-29 | 2018-07-13 | 福特全球技术公司 | Utilize the method and apparatus of the contact pilotage progressive molding prototype part of heating |
| US11931929B2 (en) | 2016-12-29 | 2024-03-19 | Ford Global Technologies, Llc | Method and apparatus for incrementally forming prototype parts with a heated stylus tool |
| US11179869B2 (en) | 2016-12-29 | 2021-11-23 | Ford Global Technologies, Llc | Method and apparatus for incrementally forming prototype parts with a heated stylus |
| CN106825212A (en) * | 2017-02-15 | 2017-06-13 | 青岛理工大学 | Method for judging breakage of multidirectional hammering type gradually-formed plate |
| CN109968643A (en) * | 2019-03-28 | 2019-07-05 | 厦门大学嘉庚学院 | Three D thermo shaping method of plastic sheet numerical control |
| CN110369853A (en) * | 2019-07-26 | 2019-10-25 | 上海交通大学 | A kind of laminated plate two point synchronized links and progressive compound molding device and method |
| CN110465584A (en) * | 2019-08-05 | 2019-11-19 | 南京工程学院 | A kind of progressive molding limit test method of mesh plate |
| CN110815846B (en) * | 2019-11-22 | 2021-10-15 | 上海交通大学 | Progressive forming device and method for thermoplastic resin-based braided composite material |
| CN110815846A (en) * | 2019-11-22 | 2020-02-21 | 上海交通大学 | Progressive forming device and method for thermoplastic resin-based braided composite material |
| CN112588976A (en) * | 2020-10-29 | 2021-04-02 | 浙江合众新能源汽车有限公司 | Plate incremental forming method |
| CN112528424A (en) * | 2020-11-03 | 2021-03-19 | 南京工程学院 | Method for improving incremental forming performance of plate |
| CN112528424B (en) * | 2020-11-03 | 2024-05-28 | 南京工程学院 | Method for improving incremental forming performance of plate |
| CN112659562A (en) * | 2020-12-23 | 2021-04-16 | 上海交通大学 | Method for flexibly connecting polymer plate and foam metal dissimilar material through thermal radiation |
| CN113042618A (en) * | 2021-03-15 | 2021-06-29 | 武汉理工大学 | Incremental forming method for large-scale component |
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