CN111250882B - Vehicle door plate welding process - Google Patents
Vehicle door plate welding process Download PDFInfo
- Publication number
- CN111250882B CN111250882B CN201811451193.7A CN201811451193A CN111250882B CN 111250882 B CN111250882 B CN 111250882B CN 201811451193 A CN201811451193 A CN 201811451193A CN 111250882 B CN111250882 B CN 111250882B
- Authority
- CN
- China
- Prior art keywords
- welding
- hot air
- door panel
- door plate
- hot
- 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.)
- Expired - Fee Related
Links
- 238000003466 welding Methods 0.000 title claims abstract description 134
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000001816 cooling Methods 0.000 claims abstract description 15
- 238000004140 cleaning Methods 0.000 claims abstract description 11
- 238000004321 preservation Methods 0.000 claims description 15
- 238000007689 inspection Methods 0.000 claims description 9
- 238000007664 blowing Methods 0.000 claims description 8
- 239000002184 metal Substances 0.000 abstract description 5
- 230000003247 decreasing effect Effects 0.000 description 8
- 229910000679 solder Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/003—Cooling means
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
Abstract
The invention discloses a welding process of a vehicle door plate, which comprises the following steps: s1, cleaning; s2, assembling; s3, clamping; s4, preheating; s5, hot air welding; s6, cooling; s7, hot riveting and welding; and S8, checking and warehousing. According to the welding process of the car door panel, provided by the invention, the welding spot of the non-deformable area of the car door panel is subjected to hot air welding, the welding spot of the easily deformable area of the car door panel is subjected to hot rivet welding, and the welding spot of the easily deformable area is changed from the hot air welding to the hot rivet welding, so that the situation of local deformation of the car door panel after the hot air welding is solved, and the gap size between the skirt edge of the car door panel and a metal plate after the assembly is ensured.
Description
Technical Field
The invention relates to the technical field of automobile manufacturing, in particular to a welding process of a door plate.
Background
The car door guard board consists of an upper body, a handrail, a map bag and the like, and the sub-parts are fastened by hot air welding spots.
The hot air welding that uses at present can once realize the welding of 60 solder joints, and is efficient, and solder joint intensity is high.
However, hot air welding can cause local heating of parts, so that local thermal deformation of the parts is caused, and the gap between the skirt edge of the door panel and the metal plate is poor in size after assembly.
Therefore, we propose a door panel welding process.
Disclosure of Invention
The invention aims to provide a vehicle door panel welding process, which solves the problem of local deformation of a vehicle door panel after hot air welding by performing hot air welding on a welding spot of a non-deformable area of the vehicle door panel, performing hot rivet welding on a welding spot of an easily deformable area of the vehicle door panel and changing the hot air welding into the hot rivet welding on the welding spot of the easily deformable area, and ensures the gap size between the skirt edge of the assembled vehicle door panel and a metal plate so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a welding process for a door panel comprises the following steps:
s1, cleaning:
cleaning the door panel body, the upper body, the handrail, the map bag and the like;
s2, assembling:
assembling the cleaned door panel body, the upper body, the handrail, the map bag and the like in the step S1 to form a complete door panel;
s3, clamping:
clamping the assembled door panel in the step S2 on a jig, so that the assembled door panel is inclined with the horizontal plane;
s4, preheating:
after the door plate is clamped in S3, preheating a non-deformable area of the door plate by hot air, wherein the temperature of the preheated hot air is 80-120 ℃;
s5, hot air welding:
after preheating in S4 is completed, transferring the door plate to a hot air welding area, accurately positioning the door plate according to the position of a hot air duct, aligning the hot air duct to a welding point to be welded in a non-deformation area, and welding the welding point in the non-deformation area by blowing hot air out of the hot air duct, wherein the temperature of the hot air is 300-320 ℃;
s6, cooling:
after the hot air welding of the non-deformable area of the door panel in the S5 is finished, cooling the door panel by using a cold air pipe for 5-10min, and finishing the hot air welding of the non-deformable area of the door panel;
s7, hot riveting and welding:
after the door plate in the S6 is cooled, taking down the door plate from the jig, then turning the door plate to a hot riveting area, selecting a hot riveting module according to the position of a welding spot to be welded in the easily-deformed area on the door plate to be welded, placing the door plate on a bottom die of the hot riveting module, and performing rivet welding on the welding spot to be welded in the easily-deformed area on the door plate through a rivet welding head of the hot riveting module to complete the hot riveting welding on the easily-deformed area of the door plate;
s8, checking and warehousing:
and (5) placing the vehicle door panel subjected to the hot rivet welding in the step S7 on an inspection bench, inspecting the welding point, and warehousing after the inspection is qualified.
Preferably, the door panel in the step S3 is arranged at an included angle of 45-75 degrees with the horizontal plane.
Preferably, the preheating time of the door panel in the step S4 is 20 to 40S.
Preferably, the door panel is subjected to heat preservation for a period of time after being welded by hot air in the step S5.
Preferably, the heat preservation temperature is 120-150 ℃, and the heat preservation time is 60-120 s.
Preferably, the air outlet of the hot air duct in S5 is arranged above the door panel, and the distance between the air outlet of the hot air duct and the welding point to be welded in the non-deformable region of the door panel is 5-15 mm.
Preferably, the cold air pipe in the step S6 is intermittently operated during cooling, and is suspended for 10S every 20S of operation.
Preferably, the initial temperature of the cold air blown out by the cold air pipe in the step S6 is 60 ℃, and the temperature is gradually decreased at a speed of 10 ℃/min until the temperature is decreased to 25 ℃.
Compared with the prior art, the invention has the beneficial effects that: according to the welding process of the car door panel, provided by the invention, the welding spot of the non-deformable area of the car door panel is subjected to hot air welding, the welding spot of the easily deformable area of the car door panel is subjected to hot rivet welding, and the welding spot of the easily deformable area is changed from the hot air welding to the hot rivet welding, so that the situation of local deformation of the car door panel after the hot air welding is solved, and the gap size between the skirt edge of the car door panel and a metal plate after the assembly is ensured.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
A welding process for a door panel comprises the following steps:
s1, cleaning:
cleaning the door panel body, the upper body, the handrail, the map bag and the like;
s2, assembling:
assembling the cleaned door panel body, the upper body, the handrail, the map bag and the like in the step S1 to form a complete door panel;
s3, clamping:
clamping the assembled door panel in the step S2 on a jig, so that the assembled door panel is inclined with the horizontal plane;
s4, preheating:
after the door plate is clamped in S3, preheating a non-deformable area of the door plate by hot air, wherein the temperature of the preheated hot air is 80 ℃;
s5, hot air welding:
after preheating in S4 is completed, transferring the door plate to a hot air welding area, accurately positioning the door plate according to the position of a hot air duct, aligning the hot air duct to a welding point to be welded in a non-deformation area, blowing hot air out through the hot air duct to weld the welding point in the non-deformation area, wherein the temperature of the hot air is 300 ℃;
s6, cooling:
after the hot air welding of the non-deformable area of the door panel in the S5 is finished, cooling the door panel by using the cold air pipe for blowing out cold air for 5min, and finishing the hot air welding of the non-deformable area of the door panel;
s7, hot riveting and welding:
after the door plate in the S6 is cooled, taking down the door plate from the jig, then turning the door plate to a hot riveting area, selecting a hot riveting module according to the position of a welding spot to be welded in the easily-deformed area on the door plate to be welded, placing the door plate on a bottom die of the hot riveting module, and performing rivet welding on the welding spot to be welded in the easily-deformed area on the door plate through a rivet welding head of the hot riveting module to complete the hot riveting welding on the easily-deformed area of the door plate;
s8, checking and warehousing:
and (5) placing the vehicle door panel subjected to the hot rivet welding in the step S7 on an inspection bench, inspecting the welding point, and warehousing after the inspection is qualified.
Specifically, the door panel in the step S3 is arranged at an angle of 45 ° with the horizontal plane.
Specifically, the preheating time of the door panel in S4 is 40S.
Specifically, in the step S5, the door panel is subjected to hot air welding and then is subjected to heat preservation for a period of time.
Specifically, the heat preservation temperature is 120-DEG C, and the heat preservation time is 120 s.
Specifically, the air outlet of the hot air duct in S5 is arranged above the door panel, and the distance between the air outlet of the hot air duct and the welding point to be welded in the non-deformable region of the door panel is 5 mm.
Specifically, the cold air duct in S6 intermittently operates during cooling, and stops operating for 10 seconds every 20 seconds.
Specifically, the initial temperature of the cold air blown out by the cold air duct in the S6 is 60 ℃, and the temperature is gradually decreased at a speed of 10 ℃/min until the temperature is decreased to 25 ℃.
Example 2
A welding process for a door panel comprises the following steps:
s1, cleaning:
cleaning the door panel body, the upper body, the handrail, the map bag and the like;
s2, assembling:
assembling the cleaned door panel body, the upper body, the handrail, the map bag and the like in the step S1 to form a complete door panel;
s3, clamping:
clamping the assembled door panel in the step S2 on a jig, so that the assembled door panel is inclined with the horizontal plane;
s4, preheating:
after the door plate is clamped in S3, preheating a non-deformable area of the door plate by hot air, wherein the temperature of the preheated hot air is 100 ℃;
s5, hot air welding:
after preheating in S4 is completed, transferring the door plate to a hot air welding area, accurately positioning the door plate according to the position of a hot air duct, aligning the hot air duct to a welding point to be welded in a non-deformation area, blowing hot air out through the hot air duct to weld the welding point in the non-deformation area, wherein the temperature of the hot air is 310 ℃;
s6, cooling:
after the hot air welding of the non-deformable area of the door panel in the S5 is finished, cooling the door panel by using the cold air pipe for blowing out cold air for 7min, and finishing the hot air welding of the non-deformable area of the door panel;
s7, hot riveting and welding:
after the door plate in the S6 is cooled, taking down the door plate from the jig, then turning the door plate to a hot riveting area, selecting a hot riveting module according to the position of a welding spot to be welded in the easily-deformed area on the door plate to be welded, placing the door plate on a bottom die of the hot riveting module, and performing rivet welding on the welding spot to be welded in the easily-deformed area on the door plate through a rivet welding head of the hot riveting module to complete the hot riveting welding on the easily-deformed area of the door plate;
s8, checking and warehousing:
and (5) placing the vehicle door panel subjected to the hot rivet welding in the step S7 on an inspection bench, inspecting the welding point, and warehousing after the inspection is qualified.
Specifically, the door panel in S3 forms an included angle of 60 ° with the horizontal plane.
Specifically, the preheating time of the door panel in S4 is 30S.
Specifically, in the step S5, the door panel is subjected to hot air welding and then is subjected to heat preservation for a period of time.
Specifically, the heat preservation temperature is 135 ℃, and the heat preservation time is 90 s.
Specifically, the air outlet of the hot air duct in S5 is arranged above the door panel, and the distance between the air outlet of the hot air duct and the welding point to be welded in the non-deformable region of the door panel is 10 mm.
Specifically, the cold air duct in S6 intermittently operates during cooling, and stops operating for 10 seconds every 20 seconds.
Specifically, the initial temperature of the cold air blown out by the cold air duct in the S6 is 60 ℃, and the temperature is gradually decreased at a speed of 10 ℃/min until the temperature is decreased to 25 ℃.
Example 3
A welding process for a door panel comprises the following steps:
s1, cleaning:
cleaning the door panel body, the upper body, the handrail, the map bag and the like;
s2, assembling:
assembling the cleaned door panel body, the upper body, the handrail, the map bag and the like in the step S1 to form a complete door panel;
s3, clamping:
clamping the assembled door panel in the step S2 on a jig, so that the assembled door panel is inclined with the horizontal plane;
s4, preheating:
after the door plate is clamped in S3, preheating a non-deformable area of the door plate by hot air, wherein the temperature of the preheated hot air is 120 ℃;
s5, hot air welding:
after preheating in S4 is completed, transferring the door plate to a hot air welding area, accurately positioning the door plate according to the position of a hot air duct, aligning the hot air duct to a welding point to be welded in a non-deformation area, blowing hot air out through the hot air duct to weld the welding point in the non-deformation area, wherein the temperature of the hot air is 320 ℃;
s6, cooling:
after the hot air welding of the non-deformable area of the door panel in the S5 is finished, cooling the door panel by using the cold air pipe for blowing out cold air for 10min, and finishing the hot air welding of the non-deformable area of the door panel;
s7, hot riveting and welding:
after the door plate in the S6 is cooled, taking down the door plate from the jig, then turning the door plate to a hot riveting area, selecting a hot riveting module according to the position of a welding spot to be welded in the easily-deformed area on the door plate to be welded, placing the door plate on a bottom die of the hot riveting module, and performing rivet welding on the welding spot to be welded in the easily-deformed area on the door plate through a rivet welding head of the hot riveting module to complete the hot riveting welding on the easily-deformed area of the door plate;
s8, checking and warehousing:
and (5) placing the vehicle door panel subjected to the hot rivet welding in the step S7 on an inspection bench, inspecting the welding point, and warehousing after the inspection is qualified.
Specifically, the door panel in the step S3 is arranged at an angle of 75 ° with the horizontal plane.
Specifically, the preheating time of the door panel in S4 is 20S.
Specifically, in the step S5, the door panel is subjected to hot air welding and then is subjected to heat preservation for a period of time.
Specifically, the heat preservation temperature is 150 ℃, and the heat preservation time is 60 s.
Specifically, the air outlet of the hot air duct in S5 is arranged above the door panel, and the distance between the air outlet of the hot air duct and the welding point to be welded in the non-deformable region of the door panel is 15 mm.
Specifically, the cold air duct in S6 intermittently operates during cooling, and stops operating for 10 seconds every 20 seconds.
Specifically, the initial temperature of the cold air blown out by the cold air duct in the S6 is 60 ℃, and the temperature is gradually decreased at a speed of 10 ℃/min until the temperature is decreased to 25 ℃.
In summary, the following steps: according to the welding process of the car door panel, provided by the invention, the welding spot of the non-deformable area of the car door panel is subjected to hot air welding, the welding spot of the easily deformable area of the car door panel is subjected to hot rivet welding, and the welding spot of the easily deformable area is changed from the hot air welding to the hot rivet welding, so that the situation of local deformation of the car door panel after the hot air welding is solved, and the gap size between the skirt edge of the car door panel and a metal plate after the assembly is ensured.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (1)
1. A welding process for a vehicle door plate is characterized by comprising the following steps:
s1, cleaning:
cleaning the door panel body, the upper body, the handrail and the map bag;
s2, assembling:
assembling the door panel body, the upper body, the handrail and the map bag cleaned in the step S1 to form a complete door panel;
s3, clamping:
clamping the assembled door panel in the step S2 on a jig, so that the assembled door panel is inclined with the horizontal plane;
s4, preheating:
after the door plate is clamped in S3, preheating a non-deformable area of the door plate by hot air, wherein the temperature of the preheated hot air is 80-120 ℃;
s5, hot air welding:
after preheating in S4 is completed, transferring the door plate to a hot air welding area, accurately positioning the door plate according to the position of a hot air duct, aligning the hot air duct to a welding point to be welded in a non-deformation area, and welding the welding point in the non-deformation area by blowing hot air out of the hot air duct, wherein the temperature of the hot air is 300-320 ℃;
s6, cooling:
after the hot air welding of the non-deformable area of the door panel in the S5 is finished, cooling the door panel by using a cold air pipe for 5-10min, and finishing the hot air welding of the non-deformable area of the door panel;
s7, hot riveting and welding:
after the door plate in the S6 is cooled, taking down the door plate from the jig, then turning the door plate to a hot riveting area, selecting a hot riveting module according to the position of a welding spot to be welded in the easily-deformed area on the door plate to be welded, placing the door plate on a bottom die of the hot riveting module, and performing rivet welding on the welding spot to be welded in the easily-deformed area on the door plate through a rivet welding head of the hot riveting module to complete the hot riveting welding on the easily-deformed area of the door plate;
s8, checking and warehousing:
placing the vehicle door plate subjected to hot rivet welding in the step S7 on an inspection bench, inspecting welding points, and warehousing after the welding points are inspected to be qualified; the door panel in the S3 forms an included angle of 45-75 degrees with the horizontal plane; the preheating time of the door panel in the S4 is 20-40S; the door plate in the S5 is subjected to hot air welding and then is subjected to heat preservation for a period of time; the heat preservation temperature is 120-150 ℃, and the heat preservation time is 60-120 s; an air outlet of the hot air duct in the S5 is arranged above the door plate, and the distance between the air outlet of the hot air duct and a welding point to be welded in the non-deformable area of the door plate is 5-15 mm; the cold air pipe in the S6 intermittently works when cooled, and pauses for 10S every 20S of work; and the initial temperature of the cold air blown out by the cold air pipe in the S6 is 60 ℃, and the temperature is gradually reduced at the speed of 10 ℃/min until the temperature is reduced to 25 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811451193.7A CN111250882B (en) | 2018-11-30 | 2018-11-30 | Vehicle door plate welding process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811451193.7A CN111250882B (en) | 2018-11-30 | 2018-11-30 | Vehicle door plate welding process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111250882A CN111250882A (en) | 2020-06-09 |
| CN111250882B true CN111250882B (en) | 2021-08-17 |
Family
ID=70923288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811451193.7A Expired - Fee Related CN111250882B (en) | 2018-11-30 | 2018-11-30 | Vehicle door plate welding process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111250882B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2383800A1 (en) * | 1977-03-17 | 1978-10-13 | Peugeot | Fascia board for car - has plastics lined trim panel and inner skin forming compartments communicating with air heater and conditioning system |
| CN102438848A (en) * | 2009-05-14 | 2012-05-02 | 全耐塑料公司 | Method for assembling a vehicle movable panel |
| CN203805810U (en) * | 2014-05-13 | 2014-09-03 | 芜湖恒信汽车内饰制造有限公司 | Novel car guard board part assembling structure |
| CN104309117A (en) * | 2014-10-08 | 2015-01-28 | 芜湖恒信汽车内饰制造有限公司 | Hot riveting welding process for automobile door guard board |
| CN104723493A (en) * | 2013-12-18 | 2015-06-24 | 现代自动车株式会社 | Apparatus and method for manufacturing garnish for vehicle |
| CN205890502U (en) * | 2016-07-20 | 2017-01-18 | 神龙汽车有限公司 | Novel integral type door protective plate |
-
2018
- 2018-11-30 CN CN201811451193.7A patent/CN111250882B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2383800A1 (en) * | 1977-03-17 | 1978-10-13 | Peugeot | Fascia board for car - has plastics lined trim panel and inner skin forming compartments communicating with air heater and conditioning system |
| CN102438848A (en) * | 2009-05-14 | 2012-05-02 | 全耐塑料公司 | Method for assembling a vehicle movable panel |
| CN104723493A (en) * | 2013-12-18 | 2015-06-24 | 现代自动车株式会社 | Apparatus and method for manufacturing garnish for vehicle |
| CN203805810U (en) * | 2014-05-13 | 2014-09-03 | 芜湖恒信汽车内饰制造有限公司 | Novel car guard board part assembling structure |
| CN104309117A (en) * | 2014-10-08 | 2015-01-28 | 芜湖恒信汽车内饰制造有限公司 | Hot riveting welding process for automobile door guard board |
| CN205890502U (en) * | 2016-07-20 | 2017-01-18 | 神龙汽车有限公司 | Novel integral type door protective plate |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111250882A (en) | 2020-06-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102933331B (en) | For the method and apparatus formed the material with low ductility | |
| CN103084501B (en) | A kind of magnesium alloy plate self-piercing riveting method by locally heating | |
| CN101879572A (en) | Self-piercing riveting method by locally heating magnesium alloy plate with laser | |
| CN103659184B (en) | A kind of welding method of radiating bottom plate | |
| CN106793546A (en) | A kind of automatic repairing machine of modified PCBA through hole direct inserting devices | |
| CN205271219U (en) | Be used for panel welded spot welding device of polishing | |
| CN102489845A (en) | Hybrid heat source stud welding method using welding robot and hybrid heat source stud welding system with welding robot | |
| CN111250882B (en) | Vehicle door plate welding process | |
| US20120181256A1 (en) | Welding method and apparatus | |
| CN110919138A (en) | Full-automatic welding device and process for spring cylinder and brake hanging seat | |
| CN107377682A (en) | Vehicle body of railway vehicle stainless sheet steel flame repairing technique | |
| CN107790885A (en) | A kind of welding method applied to heat exchanger plate | |
| CN204975670U (en) | Air -cooled ultrasonic bonding mould | |
| CN104014955B (en) | Coordinate the workbench of welding robot for high strength steel STUDY ON THE WELDING | |
| WO2017140008A1 (en) | Fully automatic heat exchanger production line | |
| CN102744478B (en) | A kind of manufacturing process of composite heat exchanger | |
| CN109366017A (en) | A kind of apparatus and method of the cooling auxiliary laser punching of energy-saving liquid nitrogen | |
| CN108981417A (en) | A kind of air-conditioning pipe type heat exchanger and its processing method | |
| CN208961197U (en) | Prevent the welder of steam head plate welding deformation | |
| CN105945108A (en) | Flanging method and flanging device for conical holes of titanium and titanium alloy plates | |
| CN113634985A (en) | Method for repairing damaged outer skin of thrust reverser of aircraft engine | |
| CN205967832U (en) | A device for reducing laser welding is bad | |
| CN105479051A (en) | Quick welding system | |
| US20190105731A1 (en) | Hot formed bonding in sheet metal panels | |
| CN114243160B (en) | Integrated manufacturing method of new energy battery box body and liquid cooling plate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 224300 No. 6, Jinshajiang Road, Yancheng Economic and Technological Development Zone, Jiangsu Province Patentee after: Dongfeng Yanfeng Yancheng Automobile Cabin System Co.,Ltd. Address before: 224300 No. 6, Jinshajiang Road, Yancheng Economic and Technological Development Zone, Jiangsu Province Patentee before: DONGFENG YANFENG YANCHENG AUTOMOTIVE TRIM SYSTEMS CO.,LTD. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210817 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |