CN107199277A - The method for carrying out trimming to superhigh intensity drop stamping steel plate using molding - Google Patents
The method for carrying out trimming to superhigh intensity drop stamping steel plate using molding Download PDFInfo
- Publication number
- CN107199277A CN107199277A CN201610600325.2A CN201610600325A CN107199277A CN 107199277 A CN107199277 A CN 107199277A CN 201610600325 A CN201610600325 A CN 201610600325A CN 107199277 A CN107199277 A CN 107199277A
- Authority
- CN
- China
- Prior art keywords
- steel plate
- stamping steel
- molding
- drop stamping
- superhigh intensity
- 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.)
- Pending
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Classifications
-
- 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
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/02—Stamping using rigid devices or tools
- B21D22/022—Stamping using rigid devices or tools by heating the blank or stamping associated with heat treatment
-
- 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
- B21D28/00—Shaping by press-cutting; Perforating
-
- 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
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/002—Processes combined with methods covered by groups B21D1/00 - B21D31/00
-
- 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
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/02—Stamping using rigid devices or tools
-
- 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
- B21D24/00—Special deep-drawing arrangements in, or in connection with, presses
- B21D24/16—Additional equipment in association with the tools, e.g. for shearing, for trimming
-
- 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
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
-
- 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
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/002—Processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/005—Processes combined with methods covered by groups B21D1/00 - B21D31/00 characterized by the material of the blank or the workpiece
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
The present invention provides a kind of method for carrying out trimming to superhigh intensity drop stamping steel plate using molding, and methods described includes forming step and molding process, and the forming step and molding process are carried out simultaneously on drop stamping steel plate.
Description
The cross reference of related application
This application claims the priority for the korean patent application the 10-2016-0032440th submitted on March 18th, 2016,
The entire disclosure of which is hereby incorporated by for all purposes by the reference.
Technical field
The present invention relates to the method that trimming (trimming) is carried out to superhigh intensity drop stamping (hot stamping) steel plate,
The method for relating more specifically to carry out superhigh intensity drop stamping steel plate using molding (coining) trimming, methods described is by pressing
Power machine is by be molded while being molded superhigh intensity drop stamping steel plate thus allows for cut side (hard trimming).
Background technology
At present, environmental problem has been subjected to global concern, and all industries all seek to find a kind of reduction fuel to tackle
The method of environmental problem.The scheme that fuel is used is reduced as realization is used in automobile industry, it is proposed that improve automobile engine
The method of efficiency and the method for reducing vehicle weight.Reduce the method for vehicle weight is for improving vehicle fuel economy
A kind of good solution.However, being that can not meet intensity needed for automobile and durable the problem of caused by the reduction of vehicle weight
Property.Therefore, solving the method for described problem turns into the maximum purpose in automobile industry.
Therefore, in automobile industry, various Cleaning Equipments are developed, it is therefore an objective to will before 2021 based on European directive
CO2 emission is reduced to 95g/km, 27% about discharged at present.In addition, car manufactures make great efforts exploitation reduction
(downsizing) technology of technology and improvement fuel economy is so as to meet the company average oil consumption implemented in 2025
(CAFE, 54.5mpg (23.2km/l)) standard.
For this purpose, current automobile industry makes great efforts to reduce vehicle weight, it is therefore an objective to ensure passenger when car crass
Security, prevent the pollution of the environment, and improve the fuel economy of vehicle.It is used as the scheme for realizing the purpose, drop stamping
Steel plate has been applied to be primarily subjected to the part of vehicle collision, and the application of anticipation heat stamping steel plate from now on will increase.
In the related art by by the steel plate of coiled strip form carry out blanking then heat, extruding and cooling blank material from
And prepare drop stamping steel plate.Austenitic structure is fully converted into by heating blank material at high temperature by blank material, then
Cool down blank material rapidly simultaneously by using mould extrusion blank material and produce martensitic structure, so as to prepare superhigh intensity
Drop stamping steel plate.However, due to being molded and cooling down the high intensity obtained after drop stamping steel plate, the problem of existing is impossible
Superhigh intensity drop stamping steel plate is cut by using the forcing press in correlation technique.Therefore, by using laser edging techniques
The superhigh intensity drop stamping steel plate prepared in cutting correlation technique.However, laser trimming (laser trimming) causes low life
Yield, using high price laser trimming equipment, and the cost needed for a large amount of maintenances.Due to the reason, the problems of be to compare
Steel plate in correlation technique, drop stamping steel plate is less efficient in terms of cost and productivity ratio.Moreover, the problem of existing is due to
Laser property produces welding fragment, spatters etc. after the technique of part trimming, and part may be corroded, and steel plate due to
Laser cause heat and anneal (soften).
The information for being disclosed in the background parts of the present invention is merely intended to deepen the understanding of the general background technology to the present invention,
And be not construed as recognizing or imply the information structure existing skill known to those skilled in the art in any form
Art.
The content of the invention
Various aspects of the invention provide the method for carrying out trimming to superhigh intensity drop stamping steel plate using molding, the side
Method reduces the production cost of superhigh intensity drop stamping steel plate, increases production efficiency, prevents corrosion, and prevent steel plate annealing.
The technical problem to be solved in the present invention is not limited to above-mentioned technical problem, and those skilled in the art in the invention pass through
It is as described below to be clearly understood that the other technical problems being not mentioned above.
In order to solve the above mentioned problem in correlation technique, the present invention is provided to be entered using molding to superhigh intensity drop stamping steel plate
The method of row trimming, methods described includes forming step and molding process, and the forming step and molding process are in drop stamping steel
Carried out simultaneously on plate.
In the present invention, the molding bushing for molding process may be mounted at the end of flange.
In the present invention, molding bushing may be mounted at the mold and lower mould for forming step.
In the present invention, molding bushing can be by identical with the material that the mold for forming step and lower mould are used
Material be made.
In the present invention, molding bushing can be attachable and dismountable.
In the present invention, it is more than 0mm and equal to or less than in the case of 1.5mm in the thickness of drop stamping steel plate, is molded
Bushing can project to the outside of mould with 0.5mm height respectively.
In the present invention, in the case where the thickness of drop stamping steel plate is more than 1.5mm, molding bushing can be with drop stamping steel
30% height of the thickness of plate projects to the outside of mould.
In the present invention, can be by using forcing press in Re Chong after carrying out forming step and molding process at the same time
Cut side (hard trimming) is carried out on laminated steel.
In the present invention, before methods described can carry out forming step and molding process simultaneously on drop stamping steel plate,
Further comprise the material blanking step that the steel plate of coiled strip form is carried out to blanking, and heat the heating stepses of blank material.
The method that trimming is carried out to superhigh intensity drop stamping steel plate according to the use of present invention molding, it is possible to reduce superelevation
The production cost of intensity drop stamping steel plate, improves production efficiency, prevents corrosion, and prevent steel plate annealing.
Retouched by the specific of some principles included this paper accompanying drawing and then be used to illustrate the present invention together with accompanying drawing
State, the further feature and advantage that methods and apparatus of the present invention has will more specifically be made apparent from or be illustrated.
Brief description of the drawings
Fig. 1 be correlation technique (prior art) in laser trimming device schematic diagram.
Fig. 2 is the schematic diagram for spilling welding fragment produced by the laser trimming in correlation technique (prior art).
Fig. 3 is display is due to the welding fragment that is produced in the laser trimming technology in correlation technique (prior art) or spills
The schematic diagram of the corrosion for the superhigh intensity drop stamping steel plate that thing is caused.
Fig. 4 be correlation technique (prior art) in laser method for cutting edge substep step structure chart.
Fig. 5 is to carry out trimming to superhigh intensity drop stamping steel plate according to the use molding of the exemplary of the present invention
Method substep step structure chart.
Fig. 6 is the construction by the shear surface of typical steel plate formed by the cut side in correlation technique (prior art)
Figure.
Fig. 7 is to pass through superhigh intensity drop stamping steel plate formed by cut side in accordance with an exemplary embodiment of the invention
Shear surface structural map.
It is to be appreciated that appended accompanying drawing is drawn with being not drawn to, it is shown that illustrate the various spies of the general principle of the present invention
The slightly simplified technique of painting levied.Specific design feature (including for example specific size, direction, the position of invention disclosed herein
Put and shape) partly it will be determined by the specific environment to be applied and used.
In these figures, through several figures of accompanying drawing, reference is related to the identical or equivalent part of the present invention.
Embodiment
Each embodiment of the present invention is will be detailed with reference to, the example of these embodiments is shown in the accompanying drawings simultaneously
It is described as follows.Although the present invention will be combined with exemplary and be described, it should be understood that this specification is not intended to
Limit the invention to those exemplaries.On the contrary, it is contemplated that not only cover these exemplaries, and
And covering can be included in various selection forms within the spirit and scope of the present invention being defined by the appended claims,
Modification, the equivalent form of value and other embodiments.
The exemplary to the present invention is described in detail below with reference to the accompanying drawings.Can be suitable based on inventor
Ground limits the concept of term to describe in the principle that his/her own invents, specification and claims by the best approach
The term and word used is not necessarily to be construed as usual implication and dictionary meanings, and should be interpreted to meet the technology essence of the present invention
The implication and concept of god.Therefore, the construction shown in the exemplary and figure disclosed in this specification is only the present invention
Best illustration embodiment, do not represent the present invention all technical spirits.Thus, it will be appreciated that when the application of the present invention
The various equivalent form of values that can replace exemplary can be made and change embodiment.
The present invention relates to the method for carrying out trimming to superhigh intensity drop stamping steel plate using molding.In recent years, superhigh intensity
Drop stamping steel plate is increasingly being applied to vehicle to ensure that weight is reduced and intact stability.Normally, by coiled strip shape
The steel plate of formula carries out blanking, heating blank material, then extrudes and cool down drop stamping steel plate 20 to prepare superhigh intensity heat punching
Laminated steel.By being thermally formed steel plate at high temperature so that steel plate is easily molded, and drop stamping steel plate 20 is in mould
In cool down rapidly so that drop stamping steel plate 20 has superhigh intensity, and the residual stress caused by phase transformation is eliminated, so as to improve
The dimensional accuracy of superhigh intensity drop stamping steel plate.
However, due to 120K levels or higher high intensity, superhigh intensity drop stamping steel plate can not possibly use conventional pressure
Power machine carries out trimming (cut side).Fig. 1 be correlation technique in laser trimming device 17 schematic diagram.Because superhigh intensity heat is rushed
Laminated steel can not possibly carry out the cut side in correlation technique, therefore use laser trimming technology as shown in Figure 1 etc..Laser is cut
The problem of side, is that productivity ratio is relatively low, and needs substantial amounts of process costs, that is, need for purchase of equipment and maintenance it is a large amount of
Cost.
Fig. 2 is the schematic diagram for spilling welding fragment produced by the laser trimming in correlation technique.Fig. 3 for display due to
The corruption for the superhigh intensity drop stamping steel plate that welding fragment or the spatters produced in laser trimming technology in correlation technique is caused
The schematic diagram of erosion.The problem of laser trimming, is, as shown in Figure 2, because laser property is produced after the technique of trimming part
Raw welding fragment, spatters etc., and as shown in Figure 3, part may corrode due to welding fragment, spatters etc., and
May be caused due to laser heat and anneal.
In order to solve above mentioned problem of the prior art, the present invention is provided to be entered using molding to superhigh intensity drop stamping steel plate
The method of row trimming, methods described includes forming step and molding process, and the forming step and molding process are in drop stamping steel
Carried out simultaneously on plate 200.Molding bushing 107 for molding process may be mounted at the end of flange, and be molded bushing 107
It may be mounted at the mold 101 and lower mould 103 for forming step.In addition, molding bushing 107 can by with for into
The material identical material that the mold 101 of type step and lower mould 103 are used is made, and is molded bushing 107 and can be attached
Dismantle in mold 101 and lower mould 103 and from it.Moreover, being more than 0mm in the thickness of drop stamping steel plate 200 and being equal to
Or less than 1.5mm in the case of, molding bushing 107 can project to the outside of mould with 0.5mm height respectively, and in heat
In the case that the thickness of stamping steel plate 200 is more than 1.5mm, molding bushing 107 can be with the 30% of the thickness of drop stamping steel plate 200
Height project to the outside of mould.Moreover, after carrying out forming step and molding process simultaneously on drop stamping steel plate 200,
Cut side, and the progress forming step simultaneously on drop stamping steel plate 200 can be carried out to drop stamping steel plate 200 by forcing press
Before molding process, the material blanking step of the progress blanking to coiled strip form steel plate, and heating hair may further include
The heating stepses of blank material material.
Fig. 4 be correlation technique in laser method for cutting edge substep step structure chart.In the related art, in manufacture hair
After base, blank is transported to hydraulic press and is heated to 950 DEG C from room temperature simultaneously.Then, heated blank is extruded by hydraulic coupling machine,
And by the mold 11 and lower mould 13 of the coolant pressure machine of cooling agent 15 of cooling device installed in advance.Then, arrange
Go out the superhigh intensity drop stamping steel plate being molded completely, then cut by laser trimming device 17.However, phase as described above
The problem of superhigh intensity drop stamping steel plate prepared in the technology of pass is, superhigh intensity drop stamping steel plate due to its high intensity without
It can be cut by conventional forcing press, for this reason, superhigh intensity drop stamping steel plate is filled by laser trimming as shown in Figure 4
Put 17 cuttings.Therefore, in order to solve the above problems, the present invention is provided carries out trimming using molding to superhigh intensity drop stamping steel plate
Method, wherein forming step and molding process carry out simultaneously.Fig. 5 is the use mould of the exemplary according to the present invention
Press the step structure chart of the substep for the method that trimming is carried out to superhigh intensity drop stamping steel plate.In the exemplary reality of the present invention
Apply in scheme, by the way that the steel plate of coiled strip form is carried out into blanking so as to prepare blank.Then, blank is heated to 950 DEG C simultaneously
It is transported to hydraulic coupling machine.Then, as shown in Figure 4, by diel stamping strip, the molding bushing 107 of the diel
Installed in the end of mold 101 and the flange of lower mould 103.It is embossed on the end of flange with forming step while entering
OK.If be molded after the conformation step, have because the intensity of drop stamping steel plate 200 is uprised and can not possibly be molded
The problem of.The present invention by carrying out forming step and molding process so as to solve the above problems simultaneously.In forming step, through adding
Molding bushing of the drop stamping steel plate 200 of heat on mould is compressed.Then, the mold 101 of hydraulic coupling machine and lower mould
103 are cooled down by the cooling agent 105 for the cooling device installed in advance.Afterwards, by using forcing press it is compressed and through cooling
Drop stamping steel plate 200 on carry out cut side.
Trimming is carried out to superhigh intensity drop stamping steel plate in use molding in accordance with an exemplary embodiment of the invention
In method, the material for the mould of forming step can be SKD11, or usually using and be subjected to vacuum heat its
Its material may be used as the material of mould.Moreover, in accordance with an exemplary embodiment of the invention, the molding bushing that the present invention is used
107 can be made up of the material identical material with mould, and are molded bushing 107 and can attach to mold 101 and lower mould
Have 103 and dismantle from it.If the thickness of drop stamping steel plate 200 is 0mm to 1.5mm, the molding applied to mold 101
Bushing 107 and molding bushing 107 applied to lower mould 103 can project to the outside of mould with 0.5mm height respectively.This
Outside, in the case where the thickness of drop stamping steel plate 200 is more than 1.5mm, molding bushing can be with the thickness of drop stamping steel plate 200
30% height is protruded.
Fig. 6 is the structural map of the shear surface of the typical steel plate formed by the cut side in correlation technique.It can be seen that in correlation
In technology by conventional forcing press shearing steel plate in the case of, as shown in Figure 6, flash is formed in the downside of shear surface.Fig. 7
To pass through the structure of the shear surface of the superhigh intensity drop stamping steel plate of cut side formation in accordance with an exemplary embodiment of the invention
Make figure.In an exemplary embodiment of the present invention, forming step and molding process are carried out simultaneously, therefore are rushed in superhigh intensity heat
The end of the flange of laminated steel forms breach.It can be seen that in the case where carrying out cut side by using forcing press, such as institute in Fig. 7
Show, do not form flash.
In an exemplary embodiment of the present invention, using the forming step and molding process of forcing press in drop stamping steel plate
Carried out simultaneously on 200, so that the non-laser trimming cutting drop stamping steel plate 200 by using the cut side of forcing press, therefore
Significant role is produced when production drop stamping steel plate and the part being made using drop stamping steel plate, due to instead of high price laser trimming
Facility, compared to correlation technique cost reduction by 50%, and in an exemplary embodiment of the present invention, compared to correlation technique
Laser trimming, circulation time increase by 500% so that by cut side improve productivity ratio, the cut side causes production efficiency
It is splendid with speed of production.Further, it is possible to prevent part due to the welding fragment and spatters that are shed when carrying out laser trimming
And corrode, compared to correlation technique, the quality of shear surface is outstanding, and it is possible to which prevention forms flash.
For convenience of explanation and it is accurate limit appended claims, term " on ", " under ", " interior ", " outer ", " height ", " low ",
" on ", " under ", " upward ", " downward ", "front", "rear", " back of the body ", " inner side ", " outside ", " inside ", " outside ", " inside ", " outer
Portion ", " interior ", " outer ", " forward " and " backward " be used to the position of these features shown in refer to the attached drawing describe example
The feature of property embodiment.
The purpose of illustration and description above is in order to the description that specific illustrative embodiment of the invention is presented.Above
Description be not intended as exhaustive, be also not intended as and limit the invention to disclosed precise forms, it is clear that according to upper
It is all possible to state many changes of teaching and change.Selection exemplary and to be described be to explain the present invention
Certain principles and its practical application, so that others skilled in the art can be realized and shown using the various of the present invention
Example property embodiment and its different choice form and modification.The scope of the present invention is intended to by appended claims and its waited
Valency form is limited.
Claims (9)
1. a kind of method for being carried out trimming to superhigh intensity drop stamping steel plate using molding, methods described is included：
It is molded and is molded drop stamping steel plate.
2. the method according to claim 1 for carrying out trimming to superhigh intensity drop stamping steel plate using molding, wherein being used for
The molding bushing of molding is arranged on the end of the flange of mould.
3. the method according to claim 2 for carrying out trimming to superhigh intensity drop stamping steel plate using molding, wherein mould
Including mold and lower mould, molding bushing is arranged on mold and the flange of lower mould for being molded.
4. the method according to claim 3 for carrying out trimming to superhigh intensity drop stamping steel plate using molding, wherein being molded
Bushing is made up of the material identical material being used with the mold for shaping and lower mould.
5. the method according to claim 3 for carrying out trimming to superhigh intensity drop stamping steel plate using molding, wherein being molded
Bushing is able to attach to mold and lower mould and from mold and lower mould release.
6. the method according to claim 3 for carrying out trimming to superhigh intensity drop stamping steel plate using molding, wherein in heat
The thickness of stamping steel plate is more than 0mm and equal to or less than in the case of about 1.5mm, and molding bushing is respectively with about 0.5mm height
Degree projects to the outside of mold and lower mould.
7. the method according to claim 3 for carrying out trimming to superhigh intensity drop stamping steel plate using molding, wherein in heat
In the case that the thickness of stamping steel plate is greater than about 1.5mm, molding bushing is prominent with about 30% height of the thickness of drop stamping steel plate
Go out the outside to mold and lower mould.
8. the method according to claim 1 for carrying out trimming to superhigh intensity drop stamping steel plate using molding, wherein same
After Shi Jinhang is molded and is molded, cut side is carried out on drop stamping steel plate by using forcing press.
9. the method according to claim 8 for being carried out trimming to superhigh intensity drop stamping steel plate using molding, is further wrapped
Include：
Before being molded and be molded simultaneously on drop stamping steel plate, the steel plate of coiled strip form is subjected to blanking, and heat hair
Base steel plate.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2016-0032440 | 2016-03-18 | ||
| KR1020160032440A KR20170108477A (en) | 2016-03-18 | 2016-03-18 | The Trimming Method of Super High Tensile Strength Steel Plate Using The Coining Method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107199277A true CN107199277A (en) | 2017-09-26 |
Family
ID=59751602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610600325.2A Pending CN107199277A (en) | 2016-03-18 | 2016-07-27 | The method for carrying out trimming to superhigh intensity drop stamping steel plate using molding |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20170266711A1 (en) |
| KR (1) | KR20170108477A (en) |
| CN (1) | CN107199277A (en) |
| DE (1) | DE102016114041A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016013879A1 (en) * | 2016-11-19 | 2018-04-12 | Audi Ag | Method and production of a hot-formed and press-hardened vehicle body component |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3194047A (en) * | 1962-04-24 | 1965-07-13 | Budd Co | Method of making a metal sandwich structure panel |
| CN101486062A (en) * | 2009-02-24 | 2009-07-22 | 山东大学 | Thermoforming and edge-cutting integrated technique and mold of high-duty steel part |
| CN101486061A (en) * | 2009-02-24 | 2009-07-22 | 山东大学 | Thermoforming, hole-punching and edge-cutting integrated technique and mold of high-duty steel part |
| CN101972814A (en) * | 2010-10-25 | 2011-02-16 | 机械科学研究总院先进制造技术研究中心 | Ultra-high strength steel hot-stamping die for car door anticollision beam |
| KR20140077005A (en) * | 2012-12-13 | 2014-06-23 | 부산대학교 산학협력단 | Two step shearing method of high strenght material for preventing damage of press cutting mold |
| CN103889610A (en) * | 2011-10-28 | 2014-06-25 | 丰田自动车株式会社 | Hot press molding method, article molded by hot press molding, and mold for hot pressing |
| CN103934360A (en) * | 2014-04-25 | 2014-07-23 | 吉林大学 | Hot stamping and warm blanking composite forming technology and mould for ultrahigh-strength steel |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102013596B1 (en) | 2014-09-16 | 2019-08-23 | 한온시스템 주식회사 | Oil separator for scroll compressor |
-
2016
- 2016-03-18 KR KR1020160032440A patent/KR20170108477A/en not_active Application Discontinuation
- 2016-07-15 US US15/211,203 patent/US20170266711A1/en not_active Abandoned
- 2016-07-27 CN CN201610600325.2A patent/CN107199277A/en active Pending
- 2016-07-29 DE DE102016114041.4A patent/DE102016114041A1/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3194047A (en) * | 1962-04-24 | 1965-07-13 | Budd Co | Method of making a metal sandwich structure panel |
| CN101486062A (en) * | 2009-02-24 | 2009-07-22 | 山东大学 | Thermoforming and edge-cutting integrated technique and mold of high-duty steel part |
| CN101486061A (en) * | 2009-02-24 | 2009-07-22 | 山东大学 | Thermoforming, hole-punching and edge-cutting integrated technique and mold of high-duty steel part |
| CN101972814A (en) * | 2010-10-25 | 2011-02-16 | 机械科学研究总院先进制造技术研究中心 | Ultra-high strength steel hot-stamping die for car door anticollision beam |
| CN103889610A (en) * | 2011-10-28 | 2014-06-25 | 丰田自动车株式会社 | Hot press molding method, article molded by hot press molding, and mold for hot pressing |
| KR20140077005A (en) * | 2012-12-13 | 2014-06-23 | 부산대학교 산학협력단 | Two step shearing method of high strenght material for preventing damage of press cutting mold |
| CN103934360A (en) * | 2014-04-25 | 2014-07-23 | 吉林大学 | Hot stamping and warm blanking composite forming technology and mould for ultrahigh-strength steel |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20170108477A (en) | 2017-09-27 |
| DE102016114041A1 (en) | 2017-09-21 |
| US20170266711A1 (en) | 2017-09-21 |
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