CN105478621B - A kind of process for stamping of automobile panel - Google Patents
A kind of process for stamping of automobile panel Download PDFInfo
- Publication number
- CN105478621B CN105478621B CN201510952361.0A CN201510952361A CN105478621B CN 105478621 B CN105478621 B CN 105478621B CN 201510952361 A CN201510952361 A CN 201510952361A CN 105478621 B CN105478621 B CN 105478621B
- Authority
- CN
- China
- Prior art keywords
- depression
- tiltedly
- concave units
- horizontal
- automobile panel
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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
- B21D53/00—Making other particular articles
- B21D53/88—Making other particular articles other parts for vehicles, e.g. cowlings, mudguards
-
- 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
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
The invention discloses a kind of process for stamping of automobile panel, comprise the following steps：Drawing：By deep drawing of sheet into automobile panel shape；Deburring：The unnecessary part in excision automobile panel edge；Punching：Window type hole is gone out on automobile panel surface；It is prefabricated：The prefabricated sunk structure between the trimming line and flange line of window type hole；Flange：Flange treatment is carried out to window type hole, by sunk structure down tilt.The method can either eliminate the stress concentration of flange generation, be avoided that fold occurs again.
Description
Technical field
The present invention relates to automobile manufacturing field, particularly a kind of process for stamping of automobile panel.
Background technology
Automobile panel refers to that the metal sheet material for constituting body of a motor car or driver's cabin, covering engine and chassis is made
Obform body surface and inner body.The vehicle body of car, driver's cabin of bogie etc. are made up of covering and general stamping parts
, whole outwardly and inwardly shapes of vehicle body or driver's cabin are constituted after covering assembling, it is both decorative appearance part, and
It is the stress part for closing shell shape.Classify by function and position, covering can be divided into external covering part, inner cover and bone
The class of frame class covering three.The presentation quality of external covering part and skeleton class covering has particular/special requirement, the shape of inner cover
It is often more complicated.Compared with general stamping parts, covering is typically stamped to form by the cold-reduced sheet of 0.8mm~2.0mm, is had
Material is thin, complex-shaped, physical dimension is big and the features such as surface quality requirements high, its design and manufacture technology, punch die structure design
All there is particularity with punch die fabrication processes etc..Therefore, the manufacture of covering is the key link of body of a motor car manufacture.
The Sheet Metal Forming Technology of automobile panel generally includes the steps such as drawing (also referred to as drawing), deburring, punching, flange.Wherein
In turn-up process, if the stress in flange face cannot discharge, local stress concentration can be produced in covering material surface, produced
Deformation.A kind of mode for solving above-mentioned technical problem is to be prefabricated with depressed part on flange face, and these depressed parts can be certain
Dispersive stress in degree, it is to avoid the generation of stress concentration.For example for the skylight structure of automobile header field, in skylight structure
The depression of prefabricated strip and/or triangle on flange face, carries out down tilt in turn-up process, you can play certain dispersive stress
Effect.But applicant has found by engineering test, although can still can with dispersive stress, flange face in turn-up process
There is tiny fold, these folds are easily ignored by staff, this is probably due to depression the reason for produce this fold
Caused by structure design is unreasonable.In order to overcome this technological deficiency, inventor has obtained a kind of depression by a large amount of engineering tests
Structure, has been applied in the flange Sheet Metal Forming Technology of vehicle dormer window part, so as to obtain the present invention.
The content of the invention
It is an object of the invention to provide a kind of process for stamping of automobile panel, the stress collection of flange generation can either be eliminated
In, it is avoided that fold occurs again.
To achieve these goals, a kind of process for stamping of automobile panel that the present invention is provided, comprises the following steps：
Drawing：By deep drawing of sheet into automobile panel shape；
Deburring：The unnecessary part in excision automobile panel edge；
Punching：Window type hole is gone out on automobile panel surface；
It is prefabricated：The prefabricated sunk structure between the trimming line and flange line of window type hole；
Flange：Flange treatment is carried out to window type hole, by sunk structure down tilt；
The sunk structure includes：
First row array of depressions, second row array of depressions and the 3rd row depression battle array being arranged in order from flange line to trimming line
Row；
First row array of depressions includes multiple first concave units for arranging at equal intervals successively from left to right, and the first depression is single
Unit is made up of the first left tiltedly depression, the first horizontal depression and the first right tiltedly depression, and the first left tiltedly depression, the first horizontal depression and first are right
Tiltedly depression constitutes an isosceles trapezoid without base；The first adjacent concave units connect depression connection by the first strip,
One end of first strip connection depression is connected to the first of a first concave units right tiltedly depression bottom, and the other end is connected to down
One the first of the first concave units the left tiltedly depression bottom；
Second row array of depressions includes multiple second concave units for arranging at equal intervals successively from left to right, and the second depression is single
Unit is made up of the second left tiltedly depression, the second horizontal depression and the second right tiltedly depression, and the second left tiltedly depression, the second horizontal depression and second are right
Tiltedly depression constitutes an isosceles trapezoid without base；Second concave units are correspondingly located at the lower section of the first concave units；Phase
The second adjacent concave units connect depression connection by the second strip, and one end of the second strip connection depression is connected to one second
The right tiltedly depression bottom of the second of concave units, the other end is connected to the second left tiltedly depression bottom of next second concave units；
3rd row's array of depressions includes multiple the 3rd concave units for arraying from left to right, and the 3rd concave units are by the
Three left tiltedly depressions, the 3rd horizontal depression and the 3rd right tiltedly depression composition, the 3rd left tiltedly depression, the 3rd horizontal depression and the 3rd right tiltedly depression
Constitute an isosceles trapezoid without top margin；Right threeth nearest with its right side that be tiltedly recessed of the 3rd of each the 3rd concave units is recessed
Fall into the 3rd left tiltedly depression connection of unit；The upper end of each the 3rd left tiltedly upper end of depression tiltedly depression right with the 3rd is respectively positioned on second
The underface of concave units.
Preferably, the punching and prefabricated carry out simultaneously.
Preferably, the depth of first concave units, the second concave units and the 3rd concave units is 4mm.
Preferably, first concave units, the width of the second concave units are 6mm, and the width of the 3rd concave units is
3mm。
Preferably, the arrangement pitch of the first concave units is 1.6cm, and the arrangement pitch of the second concave units is 2.9cm.
Preferably, the length of the first left tiltedly depression, the first horizontal depression and the first right tiltedly depression be followed successively by 1.2cm, 2.9cm and
1.2cm；The length of the second left tiltedly depression, the second horizontal depression and the second right tiltedly depression is followed successively by 1.2cm, 1.6cm and 1.2cm；The
The length of three left tiltedly depressions, the 3rd horizontal depression and the 3rd right tiltedly depression is followed successively by 1.7cm, 3.9cm and 1.7cm.
Preferably, the distance of first horizontal the second horizontal depression being recessed into below is 1.1cm, and second horizontal is recessed into below
The 3rd left tiltedly depression and/or the distance of the 3rd right tiltedly depression upper end be 1.1cm.
Inventor has found that the anti-fold effect of automobile panel is best under the restriction of above-mentioned depression size.
A kind of process for stamping of automobile panel that the present invention is provided, before flange, first precasts the on flange face
One row's array of depressions, second row array of depressions and the 3rd row's array of depressions, the concave units in three row's array of depressions are into scarce one
Top margin or trapezoidal, formation multistage, the sunk structure staggeredly on base, take full advantage of the area in flange face.So, in flange mold
In pressing process, stress is in Multistage dispersion, and in each grade of dispersion, can gradually be disperseed to both sides along hypotenuse again, is disperseed
Cheng Gengjia is smoothed.In addition in dispersion process, the interlaced dispersion of stress, stream material is evenly.As can be seen here, using said structure
On the one hand stress can be made to disperse evenly, to be better protected from stress concentration, on the other hand, stream material can be made uniform, prevent office
Portion's fold.3rd, flange face area can also be made full use of.
Brief description of the drawings
Fig. 1 is a kind of flow chart of vehicle cladding element punching method provided by the present invention；
Fig. 2 is the top view of the covering used in a kind of vehicle cladding element punching method provided by the present invention；
Fig. 3 is the partial enlargement structural representation in flange face in Fig. 2；
In figure：
The 11. first left horizontal depression 13. first of tiltedly depression 12. first right tiltedly depression 14. first strips connection depressions 21.
The second left horizontal depression 23. second of tiltedly depression 22. second right tiltedly depression 24. second strips connection depression 31. the 3rd is left tiltedly recessed
Fall into 32. the 3rd right horizontal depression trimming lines of 101. flange face, 102. flange line 103. of tiltedly depression 33. the 3rd
Specific embodiment
In order that those skilled in the art more fully understand the present invention program, with reference to the accompanying drawings and detailed description
The present invention is described in further detail.
As shown in figure 1, a kind of process for stamping of automobile panel, comprises the following steps：
Step one：Drawing：Will deep drawing of sheet into automobile panel shape, automobile panel in the present embodiment is vapour
Covering for roofs.The material requirements of top cover has preferable plastically deformed performance, the steel plate such as mostly 08 or 09A1.Make punch-pin first with plate
Beginning contact position makes it uniformly draw in cavity plate close proximity to the central part of plate, can effectively prevent the broken of sheet material in drawing
Split.Pressing direction must assure that punch-pin can enter cavity plate, and it is plane that binder surface is tried one's best, and be easy to blank to position and mould processing.
In order to create good drawing and forming condition to covering, can also increase beyond covering and be cut off in subsequent handling
Part is referred to as addendum.
Step 2：Deburring：I.e. after the completion of drawing, the unnecessary part in excision automobile panel edge；
Step 3：Punching and prefabricated：Window type hole is gone out on automobile panel surface；Simultaneously window type hole trimming line and turn over
Prefabricated sunk structure between sideline；
Step 4：Flange：Flange treatment is carried out to window type hole, by sunk structure down tilt；
As shown in Figure 2,3, by taking automobile top cover as an example, its window type hole is the skylight that vehicle top is covered, and is set on the inside of skylight
Have a 4 face flange faces 101, then with the flange face of skylight side long (28cm long, 5cm wide) as a example by, sunk structure includes：
First row array of depressions, second row array of depressions and the 3rd row being arranged in order from flange line 102 to trimming line 103
Array of depressions；Describe for convenience, the position relationship of upper and lower, left and right is defined with the top view direction shown in Fig. 2.
First row array of depressions includes 5 the first concave units for arranging at equal intervals successively from left to right, and the first depression is single
Unit is made up of the first right tiltedly depression 13 of the left horizontal depression 12 and first of tiltedly depression 11, first, first left tiltedly the 11, first horizontal depression of depression
12 and first right tiltedly depression 13 constitute the isosceles trapezoids without base；The first adjacent concave units are connected by the first strip
Connect depression 14 to connect, one end of the first strip connection depression 14 is connected to the first of the first concave units right tiltedly 13 bottoms of depression
End, the other end is connected to the first left tiltedly 11 bottoms of depression of next first concave units；In first concave units, each depression
Depth be 4mm, width is 6mm.The arrangement pitch of the first concave units is 1.6cm (with one first right tiltedly 13 bottoms of depression
Portion calculates to one first adjacent thereto 11 bottoms of left tiltedly depression).The first left horizontal depression 12 and first of tiltedly depression 11, first is right
Tiltedly the length of depression 13 is followed successively by 1.2cm, 2.9cm and 1.2cm.The drift angle of the scarce base isosceles trapezoid that the first concave units are formed
It is 115 °.
Second row array of depressions includes 5 the second concave units for arranging at equal intervals successively from left to right, and the second depression is single
Unit is made up of the second right tiltedly depression 23 of the left horizontal depression 22 and second of tiltedly depression 21, second, second left tiltedly the 21, second horizontal depression of depression
22 and second right tiltedly depression 23 constitute the isosceles trapezoids without base；It is recessed that each second concave units is correspondingly located at first
Fall into the lower section of unit；As first the second concave units is located at first lower section of the first concave units, second the second depression
Unit is located at second lower section of the first concave units, by that analogy.The second adjacent concave units are connected by the second strip
Depression 24 is connected, and one end of the second strip connection depression 24 is connected to the second of the second concave units right tiltedly 23 bottoms of depression
End, the other end is connected to the second left tiltedly 21 bottoms of depression of next second concave units；Each depression in second concave units
Depth be 4mm, width is 6mm.The arrangement pitch of the second concave units is 2.9cm (with one second right tiltedly 23 bottoms of depression
Calculated to one second adjacent thereto 21 bottoms of left tiltedly depression).The second left horizontal depression 22 and second of tiltedly depression 21, second is right tiltedly
The length of depression 23 is followed successively by 1.2cm, 1.6cm and 1.2cm；The drift angle of scarce base isosceles trapezoid that second concave units are formed is
115 °, second row array of depressions is caused to become the mirror-image structure of first row array of depressions using such size, and shift to install
Below first row array of depressions, interlaced structure is formd.
3rd row's array of depressions includes 4 the 3rd concave units for arraying from left to right, and the 3rd concave units are by the
The three right tiltedly depressions 33 of the left horizontal depression 32 and the 3rd of tiltedly depression the 31, the 3rd are constituted, the horizontal depression 32 of the 3rd left tiltedly depression the 31, the 3rd and the
Three right tiltedly depressions 33 constitute an isosceles trapezoid without top margin；The right tiltedly depression 33 of the 3rd of each the 3rd concave units is right with it
The left tiltedly depression 31 of the 3rd of the 3rd nearest concave units of side is connected；Each the 3rd left tiltedly upper end of depression 31 is right with the 3rd tiltedly recessed
Sunken 33 upper end is respectively positioned on the underface of the second concave units.For example, in first the 3rd of the 3rd concave units the left tiltedly depression
End is located at first underface of the second concave units, and the 3rd right side of first the 3rd concave units is tiltedly recessed and second the 3rd
The top of the left tiltedly depression of the 3rd of concave units is connected at one, and positioned at second underface of the second concave units, with this
Analogize, until：The upper end of the 4th the 3rd of concave units the right tiltedly depression is located at the 5th underface of the second concave units.The
The depth of each depressed part in three row's array of depressions is 4mm, and width is 3mm.3rd left tiltedly the 31, the 3rd 32 and of horizontal depression of depression
The length of the 3rd right tiltedly depression 33 is followed successively by 1.7cm, 3.9cm and 1.7cm.
Wherein, the first horizontal depression 12 is 1.1cm to the distance of the horizontal depression 22 of second below, and the second horizontal depression 22 arrives it
The distance of left 33 upper ends of the right tiltedly depression of tiltedly depression 31 and/or the 3rd of the 3rd of lower section is 1.1cm.
Concave units in three row's array of depressions are into trapezoidal, formation multistage, the depression staggeredly for lacking a top margin or base
Structure, takes full advantage of the area in flange face.So, in flange mold pressing process, stress is in Multistage dispersion, and in every one-level
In dispersion, can gradually disperse to both sides along hypotenuse again, dispersion process is more smoothed.In addition in dispersion process, stress is mutual
Staggeredly disperse, stream material is evenly.As can be seen here, stress on the one hand can be made to disperse evenly, preferably to prevent using said structure
Only stress concentration, on the other hand, can make stream material uniform, prevent partial drape.3rd, flange face face can also be made full use of
Product.
A kind of process for stamping of automobile panel provided by the present invention is described in detail above.It is used herein
Specific case is set forth to principle of the invention and implementation method, and the explanation of above example is only intended to help and understands
Core concept of the invention.It should be pointed out that for those skilled in the art, not departing from the principle of the invention
On the premise of, some improvement and modification can also be carried out to the present invention, these are improved and modification also falls into the claims in the present invention
Protection domain in.
Claims (7)
1. a kind of process for stamping of automobile panel, it is characterised in that comprise the following steps：
Drawing：By deep drawing of sheet into automobile panel shape；
Deburring：The unnecessary part in excision automobile panel edge；
Punching：Window type hole is gone out on automobile panel surface；
It is prefabricated：The prefabricated sunk structure between the trimming line and flange line of window type hole；
Flange：Flange treatment is carried out to window type hole, by sunk structure down tilt；
The sunk structure includes：
First row array of depressions, second row array of depressions and the 3rd row's array of depressions being arranged in order from flange line to trimming line；
First row array of depressions includes multiple first concave units for arranging at equal intervals successively from left to right, the first concave units by
First left tiltedly depression, the first horizontal depression and the first right tiltedly depression composition, the first left tiltedly depression, the first horizontal depression and first are right tiltedly recessed
Fall into and constitute an isosceles trapezoid without base；The first adjacent concave units connect depression connection, first by the first strip
One end of strip connection depression is connected to the first of a first concave units right tiltedly depression bottom, and the other end is connected to next
The left tiltedly depression bottom of the first of first concave units；
Second row array of depressions includes multiple second concave units for arranging at equal intervals successively from left to right, the second concave units by
Second left tiltedly depression, the second horizontal depression and the second right tiltedly depression composition, the second left tiltedly depression, the second horizontal depression and second are right tiltedly recessed
Fall into and constitute an isosceles trapezoid without base；Second concave units are correspondingly located at the lower section of the first concave units；Adjacent
Second concave units connect depression connection by the second strip, and one end of the second strip connection depression is connected to one second depression
The right tiltedly depression bottom of the second of unit, the other end is connected to the second left tiltedly depression bottom of next second concave units；
3rd row's array of depressions includes multiple the 3rd concave units for arraying from left to right, and the 3rd concave units are left by the 3rd
Tiltedly it is recessed, the 3rd horizontal depression and the 3rd right tiltedly depression are constituted, tiltedly depression is constituted for the 3rd left tiltedly depression, the 3rd horizontal depression and the 3rd right side
One isosceles trapezoid without top margin；The right tiltedly depression of the 3rd of each the 3rd concave units threeth depression nearest with its right side is single
The left tiltedly depression connection of the 3rd of unit；The upper end of each the 3rd left tiltedly upper end of depression tiltedly depression right with the 3rd is respectively positioned on the second depression
The underface of unit.
2. the process for stamping of automobile panel according to claim 1, it is characterised in that the punching and it is prefabricated be simultaneously
Carry out.
3. the process for stamping of automobile panel according to claim 1, it is characterised in that first concave units,
The depth of two concave units and the 3rd concave units is 4mm.
4. the process for stamping of automobile panel according to claim 3, it is characterised in that first concave units,
The width of two concave units is 6mm, and the width of the 3rd concave units is 3mm.
5. the process for stamping of automobile panel according to claim 4, it is characterised in that between the arrangement of the first concave units
1.6cm is divided into, the arrangement pitch of the second concave units is 2.9cm.
6. the process for stamping of automobile panel according to claim 5, it is characterised in that the first left tiltedly depression, first horizontal
The length of depression and the first right tiltedly depression is followed successively by 1.2cm, 2.9cm and 1.2cm；Second left tiltedly depression, the second horizontal depression and the
The length of two right tiltedly depressions is followed successively by 1.2cm, 1.6cm and 1.2cm；3rd left tiltedly depression, the 3rd horizontal depression and the 3rd are right tiltedly recessed
Sunken length is followed successively by 1.7cm, 3.9cm and 1.7cm.
7. the process for stamping of automobile panel according to claim 6, it is characterised in that first horizontal is recessed into below
The distance of the second horizontal depression is 1.1cm, the second horizontal the 3rd left tiltedly depression being recessed into below and/or the 3rd right tiltedly depression upper end
Distance be 1.1cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510952361.0A CN105478621B (en) | 2015-12-17 | 2015-12-17 | A kind of process for stamping of automobile panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510952361.0A CN105478621B (en) | 2015-12-17 | 2015-12-17 | A kind of process for stamping of automobile panel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105478621A CN105478621A (en) | 2016-04-13 |
| CN105478621B true CN105478621B (en) | 2017-06-27 |
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ID=55666091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510952361.0A Expired - Fee Related CN105478621B (en) | 2015-12-17 | 2015-12-17 | A kind of process for stamping of automobile panel |
Country Status (1)
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| CN (1) | CN105478621B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110576103A (en) * | 2018-06-08 | 2019-12-17 | 标致雪铁龙汽车股份有限公司 | Forming method of vehicle body side wall structure, vehicle body side wall structure and vehicle |
| CN109530535B (en) * | 2018-12-28 | 2024-06-18 | 东莞市豪斯特热冲压技术有限公司 | Die and method for pre-punching of hot formed product |
| CN110434226B (en) * | 2019-08-13 | 2020-10-23 | 武汉市尚佳盛汽车配件有限公司 | Processing method and processing die for tail lamp bracket |
| CN110976691B (en) * | 2019-12-24 | 2021-04-27 | 东风汽车集团有限公司 | Nesting drawing forming method for automobile top cover and top cover rear cross beam |
| CN111633143B (en) * | 2020-05-26 | 2021-11-23 | 东风柳州汽车有限公司 | Pre-flanging method for increasing excessive drawing amount |
| CN117161222B (en) * | 2023-11-02 | 2024-01-23 | 常州达亚汽车零部件有限公司 | Stamping process and stamping equipment for automobile panel |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4195510A (en) * | 1978-06-26 | 1980-04-01 | Juergens William A | Draw bead having alternating pressure surfaces and grooves |
| CN101549380A (en) * | 2008-04-03 | 2009-10-07 | 上海大众汽车有限公司 | Resilience control method for moulding top surface of car roof |
| CN101972823A (en) * | 2010-06-07 | 2011-02-16 | 浙江吉利汽车有限公司 | Technological process for improving rigidity of skylight part on car roof |
| CN103212625A (en) * | 2013-05-10 | 2013-07-24 | 奇瑞汽车股份有限公司 | Stamping technology treatment method of skylight on automobile top cover |
| CN103769457A (en) * | 2014-02-26 | 2014-05-07 | 安徽江淮汽车股份有限公司 | Process for stamping automobile covering part |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07112219A (en) * | 1993-10-15 | 1995-05-02 | Toyota Motor Corp | Object to be worked, having flange with curvature, and its forming die |
-
2015
- 2015-12-17 CN CN201510952361.0A patent/CN105478621B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4195510A (en) * | 1978-06-26 | 1980-04-01 | Juergens William A | Draw bead having alternating pressure surfaces and grooves |
| CN101549380A (en) * | 2008-04-03 | 2009-10-07 | 上海大众汽车有限公司 | Resilience control method for moulding top surface of car roof |
| CN101972823A (en) * | 2010-06-07 | 2011-02-16 | 浙江吉利汽车有限公司 | Technological process for improving rigidity of skylight part on car roof |
| CN103212625A (en) * | 2013-05-10 | 2013-07-24 | 奇瑞汽车股份有限公司 | Stamping technology treatment method of skylight on automobile top cover |
| CN103769457A (en) * | 2014-02-26 | 2014-05-07 | 安徽江淮汽车股份有限公司 | Process for stamping automobile covering part |
Non-Patent Citations (1)
| Title |
|---|
| 基于"水滴"造型积料补偿机制的天窗翻边工艺再设计;田植诚等;《塑性工程学报》;20131231;第20卷(第6期);39-44 * |
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| CN105478621A (en) | 2016-04-13 |
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