CN109530519B - Die and method for deep-drawing part production - Google Patents
Die and method for deep-drawing part production Download PDFInfo
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- CN109530519B CN109530519B CN201811646959.7A CN201811646959A CN109530519B CN 109530519 B CN109530519 B CN 109530519B CN 201811646959 A CN201811646959 A CN 201811646959A CN 109530519 B CN109530519 B CN 109530519B
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims description 15
- 230000007246 mechanism Effects 0.000 claims abstract description 48
- 238000003825 pressing Methods 0.000 claims abstract description 47
- 238000007664 blowing Methods 0.000 claims abstract description 40
- 238000001816 cooling Methods 0.000 claims abstract description 36
- 239000000463 material Substances 0.000 claims abstract description 19
- 238000003856 thermoforming Methods 0.000 claims abstract description 7
- 238000009423 ventilation Methods 0.000 claims description 46
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 27
- 229910052757 nitrogen Inorganic materials 0.000 claims description 14
- 238000004458 analytical method Methods 0.000 claims description 12
- 238000004088 simulation Methods 0.000 claims description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 239000000498 cooling water Substances 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 5
- 238000005336 cracking Methods 0.000 abstract 1
- 238000000465 moulding Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910000734 martensite Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/20—Deep-drawing
- B21D22/22—Deep-drawing with devices for holding the edge of the blanks
-
- 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
- B21D37/10—Die sets; Pillar guides
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Micro-Organisms Or Cultivation Processes Thereof (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
The invention relates to the technical field of thermoforming, in particular to a die for producing deep-drawing parts, which comprises an upper die and a lower die, wherein the upper die comprises a die core and a material pressing piece positioned at the outer side of the die core, the lower die is provided with a die cavity, and the die core, the material pressing piece and the lower die are respectively provided with a cooling channel; the lower die is also provided with a blowing mechanism. According to the invention, the blowing mechanism is arranged for blowing air to the middle part of the bottom of the blank after the flange edge of the blank is pressed by the pressing piece for fixing, so that the bottom of the blank can be rapidly cooled, and the phenomenon that the middle part of the bottom of the blank is easy to deform or even crack after being formed due to cooling is avoided, thereby improving the quality of deep-drawn parts produced by the invention. The invention also provides a production method applying the die, so that the deep-drawn part with good quality and difficult softening and cracking is produced.
Description
Technical Field
The invention relates to the technical field of thermoforming, in particular to a die and a method for producing deep-drawing parts.
Background
Deep drawing parts are parts in which sheet metal materials are deformed into a cylindrical or box shape by stamping, pulling rings or metal molds. Because the metal needs to be deformed, the production of the deep-drawn part is usually carried out by adopting a thermoforming method at present, namely, after the blank is heated to be softened, the blank is placed in a mould for forming, and meanwhile, a cooling mechanism is arranged in the mould to ensure that the mould is in a lower temperature state, so that after the blank is formed into the deep-drawn part, the blank can be cooled in time to ensure that the shape of the deep-drawn part can be fixed.
With the continuous improvement of the requirements of light weight and safety performance of automobiles, high-strength steel parts are gradually applied to automobile body safety parts and structural parts, and most of the high-strength steel parts are manufactured by a thermoforming method. As is known, the formability of high-strength steel materials is closely related to temperature, specifically, the high-strength steel materials have lower material stress and better material fluidity at high temperature; and at low temperature, the stress of the material is increased, and the fluidity is poor, so that the contact condition and time sequence of the plate and the die in the thermoforming process have great influence on the formability of the part.
The deep-drawn part made of high-strength steel is produced by the following steps: after the blank enters the die, the flange edge of the blank is pressed by the pressing piece of the die, and then the middle part of the blank is pressed into the die cavity by the die core, so that the forming is completed.
In the above-described steps, the following problems are apparent: because mold core, swage spare and the lower mould that is provided with the die cavity are provided with cooling mechanism respectively, consequently the stock flange limit of earlier with swage spare and lower mould contact can take place cooling earlier, and the stock middle part of last with the mould contact can not cool off fast to lead to stock middle part department to be softer than other positions, consequently take place the deformation more easily, this middle part can take place the fracture more easily promptly, has influenced the quality of deep-drawing part.
Disclosure of Invention
The invention aims at the problems of the prior art and provides a die and a method for producing deep-drawing parts, which can cool a position of a blank right above a lower die cavity.
In order to solve the technical problems, the invention adopts the following technical scheme:
The invention provides a die for deep-drawing part production, which comprises an upper die and a lower die, wherein the upper die comprises a die core and a material pressing piece positioned at the outer side of the die core, the material pressing piece is used for pressing a flange edge of a blank, the lower die is provided with a die cavity matched with the die core, and the die core, the material pressing piece and the lower die are respectively provided with a cooling channel for circulating cooling water;
The lower die is also provided with a blowing mechanism for blowing the blank above the die cavity.
Further, the blowing mechanism comprises a cooler and a ventilation pipe, the ventilation pipe is arranged in the lower die, one end of the ventilation pipe is connected with the cooler, and the other end of the ventilation pipe protrudes into the die cavity and is used for pointing to a blank above the die cavity.
Furthermore, the inner side wall of the die cavity is movably provided with a fixing mechanism for fixing the ventilating pipe.
Further, a nitrogen spring is arranged at the top of the pressing piece and used for pushing the pressing piece to press the flange edge of the blank.
Further, the mold core comprises a base and a forming part arranged at the bottom of the base, the radius of the forming part is smaller than that of the base, a forming groove is formed between the forming part and the material pressing plate, and the cooling channel is arranged in the forming part.
The invention also provides a production method of the deep-drawn part, which comprises the following steps:
a. Heating the blank in a heating device to 925-935 deg.c and maintaining for 4-5.5min;
b. the cooling channel of the mold core, the cooling channel of the material pressing piece and the cooling channel of the lower mold are respectively communicated with a cooling water circulation device;
c. Transferring the blank to a lower die, covering the blank above a die cavity, and then driving a die core and a blank pressing piece to move downwards, so that the blank pressing piece presses the flange edge of the blank, and the die core is abutted against the blank;
d. starting a blowing mechanism, and blowing air to the part, covered above the die cavity, of the blank by the blowing mechanism to perform local cooling;
e. The mold core is driven to punch towards the mold cavity, so that the blank forms a deep-drawn part.
Further, between the step d and the step e, the method further comprises: d', the blowing mechanism comprises a cooler and a ventilation pipe, the ventilation pipe is arranged in the die cavity, one end of the ventilation pipe is connected with the coolant, and the other end of the ventilation pipe protrudes into the die cavity and points to the blank.
Still further, before step a, further comprising: a', calculating the position to be blown of the blank by adopting numerical simulation analysis, and then adjusting the position and the angle of the other end of the ventilation pipe according to the result of the numerical simulation analysis.
Further, in step d', the method further comprises: the other end of the ventilation pipe is fixed in the die cavity through the fixing mechanism, so that the other end of the ventilation pipe stably points to the blank.
Further, between step c and step d, further comprises: c', starting a nitrogen spring, and applying a force pointing to the blank through the nitrogen spring so that the blank cannot deviate.
The invention has the beneficial effects that: according to the invention, the blowing mechanism is arranged for blowing air to the middle part of the bottom of the blank after the flange edge of the blank is pressed by the pressing piece for fixing, so that the bottom of the blank can be rapidly cooled, and the phenomenon that the middle part of the bottom of the blank is easy to deform or even crack after being formed due to cooling is avoided, thereby improving the quality of deep-drawn parts produced by the invention.
Drawings
FIG. 1 is a schematic diagram of the present invention.
Reference numerals: 1-upper die, 2-lower die, 3-cooling channel, 4-blowing mechanism, 5-fixing mechanism, 11-die core, 12-pressing piece, 13-nitrogen spring, 21-die cavity, 41-cooler, 42-ventilation pipe, 111-base, 112-forming part and 121-forming groove.
Detailed Description
The invention will be further described with reference to examples and drawings, to which reference is made, but which are not intended to limit the scope of the invention. The present invention will be described in detail with reference to fig. 1.
Example 1
The embodiment provides a die for deep-drawing part production, which comprises an upper die 1 and a lower die 2, wherein the upper die 1 comprises a die core 11 and a pressing piece 12 positioned on the outer side of the die core 11, the pressing piece 12 is used for pressing a flange edge of a blank, the lower die 2 is provided with a die cavity 21 used for being matched with the die core 11, and the die core 11, the pressing piece 12 and the lower die 2 are respectively provided with a cooling channel 3 used for circulating cooling water;
The lower die 2 is further provided with a blowing mechanism 4 for blowing the blank above the die cavity 21.
In this embodiment, the air blowing mechanism 4 is provided to blow air to the middle part of the bottom of the blank after the flange edge of the blank is pressed by the pressing member 12 for fixing, so that the bottom of the blank can be rapidly cooled, and the middle part of the bottom of the blank is prevented from being easily deformed or even cracked after being formed due to cooling, thereby improving the quality of the deep-drawn part produced by the invention. In addition, the cooling channel 3 in this embodiment is used to connect the blank with an external cooling mechanism to circulate cooling water before placing the blank, so as to ensure that the upper die 1 and the lower die 2 are in a lower temperature state, and can quickly take away the heat of the blank during die assembly and forming to quickly cool the blank, so that the blank can generate a high-strength martensitic structure, and the quality of the deep-drawn part formed by the blank is improved.
The air blowing mechanism 4 in this embodiment may perform an air blowing action by an external cooling device and an air duct provided in the mold.
Since the air duct of the blowing mechanism 4 is fixed, that is, when errors occur in manufacturing the air duct, the mold is equivalent to scrapped. In order to avoid the above problem, which leads to an increase in the cost of the mold, in the present embodiment, the air blowing mechanism 4 includes a cooler 41 and an air duct 42, the air duct 42 is disposed in the lower mold 2, one end of the air duct 42 is connected to the cooler 41, and the other end of the air duct 42 protrudes into the cavity 21 and is used for directing the blank above the cavity 21. I.e. the user can fine tune the ventilation tube 42 as desired, so that the ventilation tube 42 can be precisely blown to the corresponding position of the blank.
In addition, the cooler 41 in the embodiment is arranged outside the lower die 2, and is only arranged in the lower die 2 by the ventilation pipe 42 and protrudes out of the die cavity 21, so that the cooler 41 is ensured to work in a normal-temperature working environment, the condition that the temperature of the working environment of the cooler 41 is too high is avoided, and the service life is shortened.
Specifically, the inner side wall of the cavity 21 is movably provided with a fixing mechanism 5 for fixing the ventilation pipe 42. After the position and angle of the ventilation tube 42 are adjusted, the ventilation tube 42 is fixed by the fixing mechanism 5, so that the ventilation tube 42 is ensured not to deviate. The fixing mechanism 5 is variously selected, for example, the fixing mechanism 5 includes a slide and a clip, the clip clamps the ventilation tube 42, and the clip engages with the slide to adjust the angle; the die cavity 21 is provided with a chute, and after the chute slides and adjusts the position, the slide bar is fixed by means of screws passing through the chute and the slide bar. In addition, in order to avoid that the ventilation pipe 42 blocks the formation of the deep-drawing part, a telescopic mechanism may be further provided, that is, after the ventilation pipe 42 performs air-blowing cooling on the bottom of the blank, the ventilation pipe 42 is driven by the telescopic mechanism to retract into the lower die 2. The specific structure of the fixing mechanism 5 of the present embodiment is only one embodiment, and should not be construed as limiting the protection scope of the fixing mechanism 5.
In this embodiment, a nitrogen spring 13 is disposed at the top of the pressing member 12, and the nitrogen spring 13 is used to push the pressing member 12 to perform a pressing action on the flange edge of the blank. The nitrogen spring 13 is used for pressing the pressing piece 12, so that the pressing piece 12 can stably and reliably press the flange edge of the blank to fix the position of the blank.
In this embodiment, the mold core 11 includes a base 111 and a forming portion 112 disposed at the bottom of the base 111, the radius of the forming portion 112 is smaller than that of the base 111, a forming groove 121 is disposed between the forming portion 112 and the pressing plate, and the cooling channel 3 is disposed in the forming portion 112. After the molding section 112 presses the blank into the cavity 21, a gap in the cavity 21 facing the molding groove 121 is used to accommodate the sidewall of the molded deep drawn part, thereby completing the molding process.
Example 2
The present embodiment provides a production method of a deep drawn part, which uses the die in embodiment 1, and specifically includes the following steps:
a. Heating the blank in a heating device to 925-935 deg.c and maintaining for 4-5.5min;
b. The cooling channel 3 of the mold core 11, the cooling channel 3 of the pressing piece 12 and the cooling channel 3 of the lower mold 2 are respectively communicated with a cooling water circulation device;
c. Transferring the blank to the lower die 2, covering the blank above the die cavity 21, and then driving the die core 11 and the blank pressing piece 12 to move downwards, so that the blank pressing piece 12 presses the flange edge of the blank, and the die core 11 is abutted against the blank;
d. starting a blowing mechanism 4, and blowing air to the part, covered above the die cavity 21, of the blank by the blowing mechanism 4 to perform local cooling;
e. The die core 11 is driven towards the die cavity 21 so that the blank forms a deep drawn part.
That is, the embodiment uses the die in embodiment 1, before forming the high-strength steel blank, the blowing mechanism 4 is used for blowing and cooling the designated position at the bottom of the blank, so that the designated position is cooled in advance, the phenomenon that the bottom of the blank is softened or even cracked due to insufficient cooling is avoided, the stability and the yield of deep-drawn parts are improved, and the production cost is reduced.
In this embodiment, between the step d and the step e, further includes: d', the blowing mechanism 4 comprises a cooler 41 and a ventilation pipe 42, the ventilation pipe 42 is arranged in the die cavity 21, one end of the ventilation pipe 42 is connected with the cooler 41, and the other end of the ventilation pipe 42 protrudes into the die cavity 21 and points to the blank.
Specifically, since the bottom of the blank is not easily softened and cracked at all positions, in order to improve the efficiency of the air-blowing cooling, the production efficiency of the deep-drawn part is improved, and before step a in the embodiment, the method further includes: a', calculating the position of the blank to be blown by adopting numerical simulation analysis, and then adjusting the position and the angle of the other end of the ventilation pipe 42 according to the result of the numerical simulation analysis. The bottom of the high-strength steel blank is analyzed by numerical simulation analysis, which positions are easy to soften or even crack when the blank is not blown and cooled by the blowing mechanism 4, and then the position and the angle of the vent pipe 42 at the other end in the die cavity 21 are adjusted according to the result of the numerical simulation analysis, so that the vent pipe 42 can directly blow and cool the bottom specific position of the blank after the flange edge of the blank is fixed by the pressing plate, and other positions still keep high temperature, namely, the bottom of the blank is formed with a low temperature area and a high temperature area, so that the bottom of the blank is kept at a temperature enough to generate thermoforming, and the position easy to deform after cooling can be cooled and molded in advance, thereby ensuring the quality of the formed deep-drawn part and the production efficiency of the deep-drawn part. It should be noted that the numerical simulation analysis method used in the present embodiment belongs to software and methods commonly used in the manufacture and production of the current mold and parts, i.e. the numerical simulation analysis belongs to the prior art in the field, and is not described herein.
Specifically, in step d', the method further includes: and further comprises fixing the other end of the ventilation tube 42 in the die cavity 21 by a fixing mechanism 5 so that the other end of the ventilation tube 42 is stably directed to the blank. After the position and angle of the ventilation pipe 42 are adjusted, the ventilation pipe 42 is fixed by the fixing mechanism 5, so that the ventilation pipe 42 is ensured not to deviate due to the force of wind in the blowing process.
In this embodiment, between step c and step d, further includes: c', activating the nitrogen spring 13, and applying a force directed to the blank pressing member 12 through the nitrogen spring 13 so that the blank pressing member 12 does not deviate. The nitrogen spring 13 is used for further fixing the pressing piece 12, so that the pressing piece 12 cannot deviate in the forming process, and the stability of the position of the blank is guaranteed.
The present invention is not limited to the preferred embodiments, but is intended to be limited to the following description, and any modifications, equivalent changes and variations in light of the above-described embodiments will be apparent to those skilled in the art without departing from the scope of the present invention.
Claims (2)
1. A production method of a deep-drawn part is characterized by comprising the following steps: the method comprises the following steps:
a. Heating the blank in a heating device to 925-935 deg.c and maintaining for 4-5.5min;
b. the cooling channel of the mold core, the cooling channel of the material pressing piece and the cooling channel of the lower mold are respectively communicated with a cooling water circulation device;
c. Transferring the blank to a lower die, covering the blank above a die cavity, and then driving a die core and a blank pressing piece to move downwards, so that the blank pressing piece presses the flange edge of the blank, and the die core is abutted against the blank;
d. starting a blowing mechanism, and blowing air to the part, covered above the die cavity, of the blank by the blowing mechanism to perform local cooling;
e. Driving the mold core to punch towards the mold cavity, so that the blank forms a deep-drawn part; after the forming part presses the blank into the die cavity, a gap opposite to the forming groove in the die cavity is used for accommodating the side wall of the formed deep-drawn part, so that the forming process is completed;
between step d and step e, further comprising: d', the blowing mechanism comprises a cooler and a ventilation pipe, the ventilation pipe is arranged in the die cavity, one end of the ventilation pipe is connected with the cooler, and the other end of the ventilation pipe protrudes into the die cavity and points to the blank;
Before step a, further comprising: a', calculating the position to be blown of the blank by adopting numerical simulation analysis, and then adjusting the position and the angle of the other end of the ventilation pipe according to the result of the numerical simulation analysis;
According to the numerical simulation analysis, firstly, the positions of the bottom of the high-strength steel blank are analyzed to be easy to soften or even crack when the blank is not subjected to blowing cooling by a blowing mechanism, then, the positions and angles of the other ends of the vent pipes in the die cavity are adjusted according to the result of the numerical simulation analysis, so that the vent pipes can directly blow and cool the bottom specific positions of the blank after the flange edges of the blank are fixed by the pressing plate, and other positions still keep high temperature, namely, the bottom of the blank is formed with a low-temperature area and a high-temperature area, so that the bottom of the blank is kept at a temperature which is enough to generate thermoforming, and the positions which are easy to deform after cooling can be cooled and formed in advance;
In the step d', the other end of the ventilation pipe is fixed in the die cavity through a fixing mechanism, so that the other end of the ventilation pipe stably points to the blank; the fixing mechanism comprises a sliding strip and a clip, the clip clamps the ventilation pipe, and the clip is meshed with the sliding strip to adjust the angle; the die cavity is internally provided with a sliding groove, and after the sliding groove slides to a well-adjusted position, a screw penetrates through the sliding groove and the sliding bar to be fixed; after the bottom of the blank is cooled by blowing air through the vent pipe, the vent pipe is driven by the telescopic mechanism to retract into the lower die;
between step c and step d, further comprising: c', starting a nitrogen spring, and applying a force pointing to the blank through the nitrogen spring so that the blank cannot deviate.
2. A mold for deep drawing part production based on the production method of claim 1, comprising an upper mold and a lower mold, characterized in that: the upper die comprises a die core and a material pressing piece positioned at the outer side of the die core, the material pressing piece is used for pressing a flange edge of a blank, the lower die is provided with a die cavity matched with the die core, and the die core, the material pressing piece and the lower die are respectively provided with a cooling channel for circulating cooling water;
The lower die is also provided with a blowing mechanism for blowing the blank above the die cavity;
The blowing mechanism comprises a cooler and a ventilation pipe, the ventilation pipe is arranged in the lower die, one end of the ventilation pipe is connected with the cooler, and the other end of the ventilation pipe protrudes into the die cavity and is used for pointing to a blank above the die cavity; after the forming part presses the blank into the die cavity, a gap opposite to the forming groove in the die cavity is used for accommodating the side wall of the formed deep-drawn part, so that the forming process is completed;
The mold core comprises a base part and a forming part arranged at the bottom of the base part, the radius of the forming part is smaller than that of the base part, a forming groove is arranged between the forming part and the material pressing plate, and a cooling channel of the mold core is arranged at the forming part;
The inner side wall of the die cavity is movably provided with a fixing mechanism for fixing the ventilating pipe;
The fixing mechanism comprises a sliding strip and a clip, the clip clamps the ventilation pipe, and the clip is meshed with the sliding strip to adjust the angle; the die cavity is internally provided with a sliding groove, and after the sliding groove slides to a well-adjusted position, a screw penetrates through the sliding groove and the sliding bar to be fixed;
The device also comprises a telescopic mechanism, wherein after the bottom of the blank is blown and cooled by the vent pipe, the vent pipe is driven by the telescopic mechanism to retract into the lower die;
the top of the material pressing piece is provided with a nitrogen spring, and the nitrogen spring is used for pushing the material pressing piece to press the flange edge of the blank.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811646959.7A CN109530519B (en) | 2018-12-29 | 2018-12-29 | Die and method for deep-drawing part production |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811646959.7A CN109530519B (en) | 2018-12-29 | 2018-12-29 | Die and method for deep-drawing part production |
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| CN109530519B true CN109530519B (en) | 2024-06-25 |
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| CN111421054A (en) * | 2020-03-16 | 2020-07-17 | 李学海 | Continuous stamping die |
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| CN105880385A (en) * | 2016-05-09 | 2016-08-24 | 上海交通大学 | Hot-stamping die and hot-stamping machining method |
| CN106180419A (en) * | 2016-09-21 | 2016-12-07 | 北京普惠三航科技有限公司 | A kind of slab differential temperature drawing shapes with die, mould, device and method for drawing |
| CN209736409U (en) * | 2018-12-29 | 2019-12-06 | 东莞市豪斯特热冲压技术有限公司 | A mould for deep-drawing part production |
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| JP3863874B2 (en) * | 2003-10-02 | 2006-12-27 | 新日本製鐵株式会社 | Hot press forming apparatus and hot press forming method for metal plate material |
| US8671729B2 (en) * | 2010-03-02 | 2014-03-18 | GM Global Technology Operations LLC | Fluid-assisted non-isothermal stamping of a sheet blank |
| JP5452431B2 (en) * | 2010-09-15 | 2014-03-26 | 本田技研工業株式会社 | Cleaning device for press mold and workpiece, and cleaning method |
| CN201988668U (en) * | 2011-01-31 | 2011-09-28 | 东风汽车有限公司 | Oxide skin cleaning device for crankshaft thermal correction die |
| CN105195623A (en) * | 2015-10-26 | 2015-12-30 | 上海交通大学 | Temperature control type stamping die for high-strength steel plate and method |
| JP6802047B2 (en) * | 2016-11-21 | 2020-12-16 | 三光合成株式会社 | Formed type and formed type method |
| CN206632232U (en) * | 2017-04-05 | 2017-11-14 | 东莞市昊瑞模具有限公司 | A kind of automobile component stamping die with knuckle cooling |
| CN207669688U (en) * | 2017-12-31 | 2018-07-31 | 东莞市鸿凯盛塑胶五金制品有限公司 | A kind of thermosetting plastics injecting molding die |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105880385A (en) * | 2016-05-09 | 2016-08-24 | 上海交通大学 | Hot-stamping die and hot-stamping machining method |
| CN106180419A (en) * | 2016-09-21 | 2016-12-07 | 北京普惠三航科技有限公司 | A kind of slab differential temperature drawing shapes with die, mould, device and method for drawing |
| CN209736409U (en) * | 2018-12-29 | 2019-12-06 | 东莞市豪斯特热冲压技术有限公司 | A mould for deep-drawing part production |
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