CN109550855A - The Wrapping method and device of high-strength steel - Google Patents
The Wrapping method and device of high-strength steel Download PDFInfo
- Publication number
- CN109550855A CN109550855A CN201811364257.XA CN201811364257A CN109550855A CN 109550855 A CN109550855 A CN 109550855A CN 201811364257 A CN201811364257 A CN 201811364257A CN 109550855 A CN109550855 A CN 109550855A
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- Prior art keywords
- outside plate
- bending part
- heating
- strength steel
- bound edge
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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
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
- B21D39/02—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of sheet metal by folding, e.g. connecting edges of a sheet to form a cylinder
- B21D39/021—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of sheet metal by folding, e.g. connecting edges of a sheet to form a cylinder for panels, e.g. vehicle doors
-
- 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
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/16—Heating or cooling
-
- 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
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/003—Positioning devices
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The invention discloses a kind of Wrapping method of high-strength steel and devices, for carrying out bound edge to high-strength steel component, the high-strength steel component includes outside plate and inner panel, and the outside plate has bending part, the following steps are included: being positioned being placed on positioning mechanism to the outside plate of bound edge and inner panel；Clamp system to after positioning outside plate and inner panel be clamped；Heating mechanism heats the bending part of outside plate, and the temperature of the bending part of outside plate is made to reach 800 DEG C or more；The outside plate that laminating mechanism completes heating presses, until outside plate encases inner panel.The technical solution adopted in the present invention can extend the range of work of wrapping process, further develop for automotive light weight technology and provide technical support to the high-strength steel component progress bound edge of the intensity extreme hardness after Overheating Treatment.
Description
Technical field
The present invention relates to the bound edge technical field of sheet metal component, the particularly Wrapping method and device of a kind of high-strength steel.
Background technique
Automobile industry requires the crashworthiness of automobile higher and higher at present, meanwhile, CO2 emissions are limited
It is increasingly stringenter, people have to reduce carbon emission by way of to automobile loss of weight, and thermoforming process is exactly automobile light weight
One of developing direction of change.The thermoforming number of packages amount that vehicle body safety member uses at present is more and more, but covers in industry in automobile
Mitigate weight again while on cover piece there are no by the way of thermoforming part to improve intensity, to find out its cause, thermoforming part
There are bottlenecks to be likely to an important factor for wrapping process.
Generally, the four-door two-lid of automobile is all made of inner and outer plates bound edge, and the material of existing inner and outer plates is not overheated place
The blank of reason, have good ductility and solid ability, after cold stamping shaped, then by wrapping mold pressing bound edge or
The bound edge of inner and outer plates can be completed directly to rolling at the flange of outside plate in roller on the machine of robot roller side.However, when interior
Outside plate forms high-intensitive sheet metal component, i.e. its intensity extreme hardness, ductility is very low, when flange angle is more than after thermoforming
After 60 °, outside plate directly cracks, therefore can not carry out bound edge to high-strength steel using existing wrapping process and equipment for wrapping,
Application of the high strength steel on automobile panel of such 'bottleneck' restrictions.
Summary of the invention
In order to overcome the defects of the prior art, the embodiment of the invention provides a kind of Wrapping method of high-strength steel and dresses
At least one of it sets, be used to solve the above problems.
The embodiment of the present application discloses: a kind of Wrapping method of high-strength steel, described for carrying out bound edge to high-strength steel component
High-strength steel component includes outside plate and inner panel, and the outside plate has bending part, comprising the following steps:
It will be placed on positioning mechanism, positioned to the outside plate of bound edge and inner panel；
Clamp system to after positioning outside plate and inner panel be clamped；
Heating mechanism heats the bending part of outside plate, and the temperature of the bending part of outside plate is made to reach 800 DEG C or more；
The outside plate that laminating mechanism completes heating presses, until the inner sidewall of the bending part of outside plate is close to inner panel.
Specifically, the heating mechanism and the laminating mechanism are moved along the bound edge path of the outside plate simultaneously, and described
Heating mechanism is always positioned in the direction of advance of the laminating mechanism.
Specifically, the heating mechanism is located in the direction of advance of the laminating mechanism away from the laminating mechanism 20-50mm
Place.
Specifically, the single heated perimeter of the heating mechanism is 30-200mm2Between.
Specifically, in step, " heating mechanism heats the bending part of outside plate, reaches the temperature of the bending part of outside plate
800 DEG C or more " and step " laminating mechanism to heating complete outside plate press, until outside plate bending part inner sidewall with
Inner panel is close to " between, it is further comprising the steps of:
The bending part for the outside plate that laminating mechanism completes heating carries out first time pressing, and the angle of pressing is 30 ° for the first time；
Heating mechanism carries out second to the bending part of outside plate and heats, make the temperature of the bending part of outside plate reach 800 DEG C with
On.
Specifically, in step, " heating mechanism carries out second to the bending part of outside plate and heats, and makes the temperature of the bending part of outside plate
Degree reach 800 DEG C or more " and step " laminating mechanism to heating complete outside plate press, up to outside plate bending part it is interior
Side wall is close to inner panel " between, it is further comprising the steps of:
Laminating mechanism carries out second to the bending part for the outside plate that second of heating is completed and presses, the angle of second of pressing
It is 30 °；
Heating mechanism carries out third time heating to the bending part of outside plate, make the temperature of the bending part of outside plate reach 800 DEG C with
On.
Specifically, the heating mechanism includes laser heating to the mode of the bending part heating of the outside plate.
Specifically, the laminating mechanism includes rolling wheel set roll-in to the mode of the bending part pressing of the outside plate.
What this applied in fact, which apply example, also discloses a kind of Wrapping apparatus of high-strength steel, for carrying out bound edge to high-strength steel component,
The high-strength steel component includes outside plate and inner panel, and the outside plate has bending part, including bound edge robot, positioning mechanism, clamping
Mechanism, heating mechanism and laminating mechanism, in which:
The bound edge robot is used to drive the heater for installing the heating mechanism and the laminating mechanism
Structure and the laminating mechanism are moved along the bound edge path of the outside plate；
The positioning mechanism is for positioning the outside plate and the inner panel；
The outside plate and the inner panel that the clamp system is used to complete positioning are clamped；
The heating mechanism is for heating the bending part of the outside plate；
The laminating mechanism is for pressing the bending part of the outside plate after heating.
Specifically, the heating mechanism is arranged in the direction of advance of the laminating mechanism, the heating mechanism with it is described
The distance between laminating mechanism is between 20-50mm.
Beneficial effects of the present invention are as follows:
1. when the high-strength steel component to the intensity extreme hardness after Overheating Treatment carries out bound edge, first to the bending part of outside plate
It carries out being heated to 800 DEG C or more, softens the material of outside plate, improve the ductility of outside plate, and then carry out to the bending part after heating
Pressing, can solve in traditional wrapping process, and high-strength steel is during bound edge when the problem that flange angle is more than just cracking, extension
The range of work of wrapping process, further develops for automotive light weight technology and provides technical support；
2. the heating mechanism and its parameter that use have heating speed fast, heat-affected zone is small, controls simple advantage；
3. heating mechanism and laminating mechanism are moved along the bound edge path of the outside plate simultaneously, and heating mechanism is always positioned at pressure
It closes in mechanism direction of advance, the two may be implemented outside plate and complete to be pressed once heating, avoid outer plate temperature at a distance of 20-50mm
Press ineffective after cooling, it is byed to press that outside plate, which also may be implemented, while being heated, and improves bound edge efficiency；
4. pair outside plate carries out bound edge by the way of segmentation pressing, the pressure pressed each time can be reduced, while also can
It is sprung back after preventing high-strength steel flange, it is ensured that the stability of high-strength steel flange improves bound edge effect.
For above and other objects, features and advantages of the invention can be clearer and more comprehensible, preferred embodiment is cited below particularly,
And cooperate institute's accompanying drawings, it is described in detail below.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of the Wrapping apparatus of high-strength steel described in the embodiment of the present invention；
Fig. 2 is the structural schematic diagram that high-strength steel component described in the embodiment of the present invention does not press；
The structural schematic diagram of the pressing for the first time of high-strength steel component described in this embodiment of the present invention of Fig. 3；
Fig. 4 is second of structural schematic diagram pressed of high-strength steel component described in the embodiment of the present invention；
Fig. 5 is the structural schematic diagram of the third time pressing of high-strength steel component described in the embodiment of the present invention.
The appended drawing reference of the figures above: 10- high-strength steel component, 11- outside plate, 110- bending part, 12- inner panel, 20- localization machine
Structure, 30- clamp system, 40- heating mechanism, 50- laminating mechanism, 60- bound edge robot.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Referring to figure 1 and figure 5, the Wrapping method of high-strength steel described in the embodiment of the present invention, for high-strength steel component
10 carry out bound edge, and the high-strength steel component 10 includes outside plate 11 and inner panel 12, and the outside plate 12 has bending part 110, the folding
The bending angle of turn of bilge 110 is generally between 90-100 °, the Wrapping method of the high-strength steel the following steps are included:
It will be placed on positioning mechanism 20, positioned, positioning mechanism 20 can root to the outside plate 11 of bound edge and inner panel 12
It is designed according to the face of positioning required for high-strength steel component 10, specifically, positioning mechanism 20 can be loose tool；
Outside plate 11 and inner panel 12 after 30 pairs of clamp system positioning are clamped, and clamp system 30 includes several automatic folders
It clamps, depending on the area for the object that the quantity of automatic clamp can clamp as needed, automatic clamp clamps outside plate 11 and inner panel 12
It is fixed on loose tool, avoids outside plate 11 and inner panel 12 during bound edge that play occurs；
Heating mechanism 40 heats the bending part 110 of outside plate 11, especially to adding at the angle R of bending part 110
Heat, makes the temperature of the bending part 110 of outside plate 11 reach 800 DEG C or more, and heating method used by the heating mechanism 40 includes
Laser heating, electromagnetic induction heating etc., preferably heating speed is fast, and heating surface (area) (HS is controllable, compact laser heater；
50 pairs of laminating mechanism heating complete outside plates 11 press, until outside plate 11 bending part 110 inner sidewall with
Inner panel 12 is close to, and the laminating mechanism 50 preferentially uses rolling wheel set, can make laminating mechanism 50 while improving bound edge efficiency
High-strength steel component 10 suitable for different products shapes.
Using above-mentioned Wrapping method, bound edge is carried out in the high-strength steel component 10 to the intensity extreme hardness after Overheating Treatment
When, first the bending part 110 of outside plate 11 is carried out to be heated to 800 DEG C or more, softens the material of outside plate 11, improves the extension of outside plate 11
Property, and then the bending part 110 after heating is pressed, it can solve in traditional wrapping process, high-strength steel is during bound edge
When flange angle is more than the problems of 60 ° of just crackings, the range of work of wrapping process is extended, is further developed for automotive light weight technology
Provide technical support.
Specifically, the positioning mechanism 20 uses loose tool in the present embodiment, the positioning mechanism 30 uses several automatic folders
Pincers, the heating mechanism 40 use laser heater, and the laminating mechanism 50 uses rolling wheel set.The laser heater and described
Rolling wheel set is moved along the bound edge path of the outside plate 11 simultaneously, and the laser heater is always positioned at the advance of the rolling wheel set
On direction, preferably, the laser heater is located in the direction of advance of the rolling wheel set at away from the rolling wheel set 20-50mm,
The facula area of the laser heater is 30-200mm2Between, i.e., the single heated perimeter of the described laser heater is 30-
200mm2Between.Bound edge path described in the present embodiment refers to rolling wheel set according to the shape and its bound edge demand of high-strength steel component 10
And the track rotated out.At work, first outside plate 11 is placed on loose tool and is had good positioning, then inner panel 12 is placed on outside plate 11
On, it aligns inner panel 12 and outside plate 11 accurately, inner panel 12 and outside plate 11 is then clamped by automatic clamp；Laser heater is by packet
Wing diameter heats first heated perimeter on the bending part 110 of outside plate 11, when this first heating model on bending part 110
When the temperature enclosed reaches 800 ° or more, laser heater is advanced along bound edge path adds second heated perimeter of bending part 110
Heat, at the same time, first heated perimeter that rolling wheel set immediately completes heating press, when laser heater is to second
Heated perimeter heating complete when, move on to third heated perimeter heating, rolling wheel set immediately to second heated perimeter into
Row pressing, and so on, i.e., to the bending part 110 of outside plate 11 using the bound edge side pressed while heating in the present embodiment
Method；When laser heater and rolling wheel set run to the position of automatic clamp, automatic clamp is opened, laser heater pair and automatic
The bending part 110 of the corresponding outside plate 11 of clamp is heated, and rolling wheel set presses the bending part 110 of outside plate 11, to be rolled
After wheel presses through, automatic clamp is closed, repeatedly, until outside plate 11 completes bound edge on entire bound edge path.
Using the above scheme, the single heated perimeter of the laser heater is 30-200mm2Between, there is heating speed
Fastly, heat-affected zone is small, controls simple advantage；And the laser heater and the rolling wheel set are simultaneously along the outside plate 11
The movement of bound edge path, and the laser heater is always positioned at the 20-50mm in the direction of advance of the rolling wheel set, convenient for swashing
Light heater just heats outside plate 11 and completes, and rolling wheel set can immediately press outside plate 11, both improve work efficiency,
It avoids the interval time heated and pressed too long, will lead to outside plate 11 and cool down rapidly, influence to press effect.
Specifically, in conjunction with shown in Fig. 2 to Fig. 5, step " heating mechanism 40 heats the bending part 110 of outside plate 11,
So that the temperature of the bending part 110 of outside plate 11 is reached 800 DEG C or more " and step " 50 pairs of laminating mechanism heating complete outside plate 11 into
Between row pressing, until the inner sidewall of the bending part 110 of outside plate 11 is close to inner panel 12 ", further includes: 50 pairs of laminating mechanism heating
The bending part 110 of the outside plate 11 of completion carries out first time pressing, and the angle of pressing is 30 ° for the first time；Heating mechanism 40 is to outside plate
11 bending part 110 carries out second and heats, and the temperature of the bending part 110 of outside plate 11 is made to reach 800 DEG C or more.Further,
In step, " heating mechanism 40 carries out second to the bending part 110 of outside plate 11 and heats, and makes the temperature of the bending part 110 of outside plate 11
Reach 800 DEG C or more " and step " 50 pairs of laminating mechanism heating complete outside plates 11 press, until outside plate 11 bending part
110 inner sidewall is close to inner panel 12 " between, further includes: the bending for the outside plate 11 that laminating mechanism 50 completes second of heating
Portion 110 carries out second and presses, and the angle of second of pressing is 30 °；Heating mechanism 40 carries out the to the bending part 110 of outside plate 11
It heats three times, the temperature of the bending part 110 of outside plate 11 is made to reach 800 DEG C or more.It should be noted that when the bending to outside plate 11
Portion 110 be performed in multiple times pressing i.e. segmentation pressing when, need mechanism 50 to be laminated to carry out one completely to the bending part 110 of outside plate 11
Bound edge path on pressing and then the heating and pressing of next round are carried out to the bending part 110 of outside plate 11, to simplify heating
The motion profile of mechanism 40 and laminating mechanism 50 improves bound edge efficiency, also ensures that the uniformity of bound edge.
The bending part 110 of outside plate 11 is pressed by the way of above-mentioned segmentation pressing, can reduce and press each time
Pressure, while being sprung back after also capable of preventing high-strength steel flange, it is ensured that the stability of high-strength steel flange improves bound edge effect.
As shown in Figure 1, the embodiment of the invention also provides a kind of Wrapping apparatus of high-strength steel, for high-strength steel component 10
Bound edge is carried out, the high-strength steel component 10 includes outside plate 11 and inner panel 12, and the outside plate 11 has bending part 110, the bound edge
Device includes bound edge robot 60, positioning mechanism 20, clamp system 30, heating mechanism 40 and laminating mechanism 50, in which:
The bound edge robot 60 is used to drive described for installing the heating mechanism 40 and the laminating mechanism 50
Heating mechanism 40 and the laminating mechanism 50 are moved along the bound edge path of the outside plate 11, the bound edge robot 60 preferably six axis
Robot；
The positioning mechanism 20 is for positioning the outside plate 11 and the inner panel 12, specifically, the localization machine
The optional loose tool of structure 20；
The outside plate 11 and the inner panel 12 that the clamp system 30 is used to complete positioning are clamped, the clamping
The optional automatic clamp of mechanism 30；
The heating mechanism 40 is for heating the bending part 110 of the outside plate 11；
The laminating mechanism 50 is for pressing the bending part 110 of the outside plate 11 after heating.
Specifically, the heating mechanism 40 and the laminating mechanism 50 are moved along the bound edge path of the outside plate 11 simultaneously,
The heating mechanism 40 is arranged in the direction of advance of the laminating mechanism 50, the heating mechanism 40 and the laminating mechanism 50
The distance between 20-50mm；The preferred laser heater of the heating mechanism 40, the facula area of the laser heater
For 30-200mm2Between, i.e., the single heated perimeter of the described laser heater is 30-200mm2Between, have heating speed fast,
Heat-affected zone is small, controls simple advantage；The preferred rolling wheel set of the laminating mechanism 50 not only improves and improves bound edge efficiency,
Laminating mechanism 50 can be made to be suitable for the high-strength steel component 10 of different products shapes.
The Wrapping apparatus of high-strength steel described in the embodiment of the present invention, can be to the height of the intensity extreme hardness after Overheating Treatment
Strong steel component 10 carries out bound edge.At work, first the bending part 110 of outside plate 11 is carried out being heated to 800 DEG C or more, softens outside plate
11 material, improves the ductility of outside plate 11, and then presses to the bending part 110 after heating, can solve traditional bound edge
In technique, high-strength steel during bound edge when flange angle be more than 60 ° just cracking problems, extend the processing model of wrapping process
It encloses, further develops for automotive light weight technology and provide technical support.
Specific embodiment is applied in the present invention, and principle and implementation of the present invention are described, above embodiments
Explanation be merely used to help understand method and its core concept of the invention；At the same time, for those skilled in the art,
According to the thought of the present invention, there will be changes in the specific implementation manner and application range, in conclusion in this specification
Appearance should not be construed as limiting the invention.
Claims (10)
1. a kind of Wrapping method of high-strength steel, for carrying out bound edge to high-strength steel component, the high-strength steel component include outside plate and
Inner panel, the outside plate have bending part, which comprises the following steps:
It will be placed on positioning mechanism, positioned to the outside plate of bound edge and inner panel；
Clamp system to after positioning outside plate and inner panel be clamped；
Heating mechanism heats the bending part of outside plate, and the temperature of the bending part of outside plate is made to reach 800 DEG C or more；
The outside plate that laminating mechanism completes heating presses, until the inner sidewall of the bending part of outside plate is close to inner panel.
2. the Wrapping method of high-strength steel according to claim 1, which is characterized in that the heating mechanism and the pressing machine
Structure is moved along the bound edge path of the outside plate simultaneously, and the heating mechanism is always positioned at the direction of advance of the laminating mechanism
On.
3. the Wrapping method of high-strength steel according to claim 2, which is characterized in that the heating mechanism is located at the pressing
In the direction of advance of mechanism away from the laminating mechanism 20-50mm at.
4. the Wrapping method of high-strength steel according to claim 2, which is characterized in that the single of the heating mechanism heats model
It encloses for 30-200mm2Between.
5. the Wrapping method of high-strength steel according to claim 1, which is characterized in that in step, " heating mechanism is to outside plate
Bending part is heated, and the temperature of the bending part of outside plate is made to reach 800 DEG C or more " and step " laminating mechanism to heating complete
Outside plate is pressed, until the inner sidewall of the bending part of outside plate is close to inner panel " between, it is further comprising the steps of:
The bending part for the outside plate that laminating mechanism completes heating carries out first time pressing, and the angle of pressing is 30 ° for the first time；
Heating mechanism carries out second to the bending part of outside plate and heats, and the temperature of the bending part of outside plate is made to reach 800 DEG C or more.
6. the Wrapping method of high-strength steel according to claim 5, which is characterized in that in step, " heating mechanism is to outside plate
Bending part carries out second and heats, and the temperature of the bending part of outside plate is made to reach 800 DEG C or more " and step " laminating mechanism is to heating
The outside plate of completion is pressed, until the inner sidewall of the bending part of outside plate is close to inner panel " between, it is further comprising the steps of:
Laminating mechanism carries out second to the bending part for the outside plate that second of heating is completed and presses, and the angle of second of pressing is
30°；
Heating mechanism carries out third time heating to the bending part of outside plate, and the temperature of the bending part of outside plate is made to reach 800 DEG C or more.
7. the Wrapping method of high-strength steel according to claim 1, which is characterized in that the heating mechanism is to the outside plate
The mode of bending part heating includes laser heating.
8. the Wrapping method of high-strength steel according to claim 1, which is characterized in that the laminating mechanism is to the outside plate
The mode of bending part pressing includes rolling wheel set roll-in.
9. a kind of Wrapping apparatus of high-strength steel, for carrying out bound edge to high-strength steel component, the high-strength steel component include outside plate and
Inner panel, the outside plate have bending part, which is characterized in that including bound edge robot, positioning mechanism, clamp system, heating mechanism
And laminating mechanism, in which:
The bound edge robot for installing the heating mechanism and the laminating mechanism, and for drive the heating mechanism and
The laminating mechanism is moved along the bound edge path of the outside plate；
The positioning mechanism is for positioning the outside plate and the inner panel；
The outside plate and the inner panel that the clamp system is used to complete positioning are clamped；
The heating mechanism is for heating the bending part of the outside plate；
The laminating mechanism is for pressing the bending part of the outside plate after heating.
10. the Wrapping apparatus of high-strength steel according to claim 9, which is characterized in that the heating mechanism is arranged described
In the direction of advance of laminating mechanism, the distance between the heating mechanism and the laminating mechanism are between 20-50mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811364257.XA CN109550855A (en) | 2018-11-16 | 2018-11-16 | The Wrapping method and device of high-strength steel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811364257.XA CN109550855A (en) | 2018-11-16 | 2018-11-16 | The Wrapping method and device of high-strength steel |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110000252A (en) * | 2019-05-14 | 2019-07-12 | 韦发全 | A kind of rear bending binding structure of composite metal plate |
| CN110774499A (en) * | 2019-11-11 | 2020-02-11 | 合肥长安汽车有限公司 | Technical method for heating and curing front cover assembly edge covering |
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| CN205887858U (en) * | 2016-06-20 | 2017-01-18 | 广州瑞松北斗汽车装备有限公司 | Fetal membrane device that robot intelligence roll extrusion is bordured systematically |
| CN206483928U (en) * | 2016-12-29 | 2017-09-12 | 南京臻铭信机电科技有限公司 | Edge covering device of car roof cover |
| KR20180092593A (en) * | 2017-02-10 | 2018-08-20 | 서강대학교산학협력단 | High-frequency induction heating system for automotive hood panel sealer bonding |
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| CN104768673A (en) * | 2012-11-05 | 2015-07-08 | 3M创新有限公司 | Method for making a hemmed structure of metal panels |
| US20160158824A1 (en) * | 2014-12-08 | 2016-06-09 | Sungwoo Hitech Co., Ltd. | Roller hemming apparatus |
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| CN206483928U (en) * | 2016-12-29 | 2017-09-12 | 南京臻铭信机电科技有限公司 | Edge covering device of car roof cover |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110000252A (en) * | 2019-05-14 | 2019-07-12 | 韦发全 | A kind of rear bending binding structure of composite metal plate |
| CN110774499A (en) * | 2019-11-11 | 2020-02-11 | 合肥长安汽车有限公司 | Technical method for heating and curing front cover assembly edge covering |
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Application publication date: 20190402 |