CN103056220A - Punch with groove structure and micro-stretching forming device applying punch - Google Patents
Punch with groove structure and micro-stretching forming device applying punch Download PDFInfo
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- CN103056220A CN103056220A CN2012103949391A CN201210394939A CN103056220A CN 103056220 A CN103056220 A CN 103056220A CN 2012103949391 A CN2012103949391 A CN 2012103949391A CN 201210394939 A CN201210394939 A CN 201210394939A CN 103056220 A CN103056220 A CN 103056220A
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- drift
- groove structure
- extending
- building mortion
- holder assembly
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- 230000002093 peripheral effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 20
- 238000007493 shaping process Methods 0.000 description 8
- 230000001737 promoting effect Effects 0.000 description 4
- 230000008719 thickening Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
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Classifications
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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
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/20—Deep-drawing
Abstract
A micro-stretching forming device with a punch having a groove structure comprises a first die holder assembly, a second die holder assembly and the punch. The first die holder assembly comprises a fixing part; the second die holder assembly is opposite to the first die holder assembly and comprises a die cavity part; the punch is provided with a fixed end and a workpiece processing end opposite to the fixed end, the fixed end is used for being configured on the fixed portion, the workpiece processing end faces the die cavity portion, and the peripheral surface of the workpiece processing end comprises a plurality of grooves. The invention further provides a punch with the groove structure.
Description
Technical field
The present invention relates to a kind of little building mortion of extending, and particularly have little building mortion of extending of groove structure relevant for a kind of drift.
Background technology
Extend to be configured as and use Stretching die and go out required product appearance with dull and stereotyped stock (for example sheet material) is stamping.Please consult simultaneously Figure 1A and Figure 1B, Figure 1A processes front schematic diagram for the drift of existing little building mortion of extending to dull and stereotyped stock; Figure 1B is the schematic diagram after the drift of the little building mortion of extending of Figure 1A is processed dull and stereotyped stock.
Shown in Figure 1A and Figure 1B, little building mortion 6 of extending comprises holding pad 60, die cavity 61 and drift 62.Shaping adds man-hour in extending, the operator can be seated in the stock P of a flat board position between die cavity 61 and the holding pad 60, after holding pad 60 was clamped stock P with a pressure-plate-force F, this moment, drift 62 progressed in the die cavity 61, stock P is entered finish the processing that is shaped of extending in the die cavity 61.
Yet, because the relation in the design of existing drift 62, as shown in Figure 1B, when having the problem that thickness differs, the upper fillet R1 of stock P its finished product thickness after shaping and lower fillet R2 occur (for example, the thickness W2 of lower fillet R2 can less than the thickness W1 of upper fillet R1); In detail, lower fillet R2 place cause because of local pressure thickness W2 compared with on the thickness W1 of fillet R1 thinner, thereby the situation of breaking easily, and along with more near the thickness W1 progressive additive of the upper fillet R1 at holding pad 60 places, Buckling phenomenon easily occurs.
Summary of the invention
In view of this, the purpose of this invention is to provide a kind of little building mortion of extending that has the drift of groove structure and use this drift, to promote the overall quality after dull and stereotyped stock is shaped by extending.
For reaching above-mentioned purpose, the invention provides a kind of drift with groove structure, it comprises:
One main body has workpiece processing end, and the circumferential surface of this workpiece processing end comprises a plurality of grooves.
Described drift with groove structure wherein, has spacing between per two adjacent trenches.
Described drift with groove structure, wherein, these a plurality of grooves are formed on this circumferential surface for extending spirally.
Described drift with groove structure, wherein, this main body is one to be the structure of boring column.
Described drift with groove structure, wherein, the section of these a plurality of grooves is triangular in shape, square, trapezoidal, half elliptic or semicircle.
Described drift with groove structure, wherein, the section of these a plurality of grooves includes the shape that is comprised of several straight lines or curve.
The present invention also provides a kind of drift to have little building mortion of extending of groove structure, and it comprises:
One first die holder assembly comprises a fixed part;
One second die holder assembly, position are with respect to this first die holder assembly, and this second die holder assembly comprises a die cavity section; And
One drift has the relatively workpiece processing end of this stiff end of a stiff end and position, and this stiff end is in order to be configured in this fixed part, and this workpiece processing end is towards this die cavity section, and the circumferential surface of this workpiece processing end comprises a plurality of grooves.
Described drift has little building mortion of extending of groove structure, wherein, this the first die holder assembly more comprises a plurality of bolt parts and a corresponding holding pad in this die cavity section, this each bolt part is provided with an elastic component, and these a plurality of bolt parts utilize this elastic component of its correspondence and are configured between this fixed part and this holding pad.
Described drift has little building mortion of extending of groove structure, wherein, more comprises a guide pillar between this first die holder assembly and this second die holder assembly, and this first die holder assembly more comprises a guide pillar lining that should guide pillar.
Described drift has little building mortion of extending of groove structure, wherein, the fixture that this fixed part more comprises a drift backboard, a punch fixing plate and this drift backboard is engaged with this punch fixing plate, this stiff end of this drift is resisted against this drift backboard and is positioned on this punch fixing plate.
Described drift has little building mortion of extending of groove structure, and wherein, this die cavity section more comprises a die cavity backboard and is positioned at a die cavity on this die cavity backboard.
Described drift has little building mortion of extending of groove structure, wherein, has spacing between per two adjacent trenches.
Described drift has little building mortion of extending of groove structure, and wherein, these a plurality of grooves are formed on this circumferential surface for extending spirally.
Described drift has little building mortion of extending of groove structure, and wherein, this drift is one to be the structure of boring column.
Described drift has little building mortion of extending of groove structure, and wherein, the section of these a plurality of grooves is triangular in shape, square, trapezoidal, half elliptic or semicircle.
Described drift has little building mortion of extending of groove structure, and wherein, the section of these a plurality of grooves includes the shape that is comprised of several straight lines or curve.
The invention has the beneficial effects as follows:
1. be different from the design of existing drift, the little building mortion of extending that has the drift of groove structure and use this drift provided by the present invention, can extend to be shaped to dull and stereotyped stock in drift and add man-hour, utilize a plurality of grooves on its workpiece of punch body processing end circumferential surface, make dull and stereotyped stock can keep promoting than uniformity the overall quality of dull and stereotyped stock after by the shaping of being extended at the finished product integral thickness after the shaping (thickness that comprises upper fillet and lower fillet).
2. utilize the drift with column structure, in the thickness of the upper fillet of dull and stereotyped stock can be quicker and gradually layer ground down be stretched.
3. the section of a plurality of grooves of comprising of the circumferential surface of the workpiece of drift processing end can comprise regular shape, irregularly shaped or other geometry.
Description of drawings
Figure 1A processes front schematic diagram for the drift of existing little building mortion of extending to dull and stereotyped stock;
Figure 1B is the schematic diagram after the drift of the little building mortion of extending of Figure 1A is processed dull and stereotyped stock;
Fig. 2 A is the schematic diagram before little its drift of building mortion of extending that one embodiment of the invention drift has a groove structure is processed dull and stereotyped stock;
Fig. 2 B is the schematic diagram after the drift of Fig. 2 A is processed dull and stereotyped stock;
Fig. 2 C comprises a plurality of grooves for the circumferential surface of the workpiece of the drift of Fig. 2 A processing end and frictional force is provided and extends and make every effort to promote the schematic diagram that dull and stereotyped stock can more evenly be stretched;
Fig. 2 D is the section schematic diagram triangular in shape that its workpiece of drift of the little building mortion of extending of another embodiment of the present invention is processed a plurality of grooves of end;
Fig. 2 E is that the section of a plurality of grooves of its workpiece of drift processing end of the little building mortion of extending of another embodiment of the present invention is trapezoidal schematic diagram;
Fig. 2 F is that its workpiece of drift of the little building mortion of extending of another embodiment of the present invention is processed the schematic diagram of the section semicircular in shape of a plurality of grooves of holding;
Fig. 2 G is that the section of a plurality of grooves of its workpiece of drift processing end of the little building mortion of extending of another embodiment of the present invention is difform schematic diagram; And
Fig. 3 is that the drift of the little building mortion of extending of another embodiment of the present invention is the schematic diagram of boring column structure.
Description of reference numerals:
The little building mortion of extending of background technology: 6-; The 60-holding pad; The 61-die cavity; The 62-drift; The F-pressure-plate-force; The P-stock; The upper fillet of R1-; Fillet under the R2-; W1, W2-thickness;
The present invention: the 1-drift has little building mortion of extending of groove structure; 11-the first die holder assembly; The 110-fixed part; 110a-drift backboard; The 110b-punch fixing plate; The 111-bolt part; The 112-holding pad; The 113-elastic component; 114a, 121a-alignment pin; 114b, 121b-bolt; 12-the second die holder assembly; 120-die cavity section; 120a-die cavity backboard; The 120b-die cavity; 13,13a, 13b, 13c, 2-drift; 131,231-stiff end; 132,232-workpiece processing end; 133,133a, 133b, 133c, 233-groove; The 14-guide pillar; 15-guide pillar lining; 20, the dull and stereotyped stock of 30-; The D-spacing; F-frictional force and the power of extending; S, S2-circumferential surface; The upper fillet of R1, R3-; Fillet under R2, the R4-; W1, W2, W3, W4-thickness.
The specific embodiment
For above-mentioned purpose of the present invention, feature and characteristics can be become apparent, hereby cooperate accompanying drawing that related embodiment of the present invention is described in detail as follows.
See also Fig. 2 A, Fig. 2 A is the schematic diagram before little its drift of building mortion of extending that one embodiment of the invention drift has a groove structure is processed dull and stereotyped stock.
By Fig. 2 A as can be known, little the extend building mortion 1 (hereinafter to be referred as little extend building mortion) of drift with groove structure comprises the first die holder assembly 11, the second die holder assembly 12 and drift 13.
The first die holder assembly 11 comprises fixed part 110.The second die holder assembly 12 positions comprise die cavity section 120 with respect to the first die holder assembly 11, the second die holder assemblies 12.Wherein, the first die holder assembly 11 in this embodiment can be used as the upper bolster assembly; The second die holder assembly 12 can be used as the die shoe assembly, but because the relation of mould actual design demand is not limited thereto aspect.
The main body of drift 13 has the workpiece processing end 132 of the relative stiff end 131 of stiff end 131 and position.Stiff end 131 is in order to being configured in fixed part 110, and after stiff end 131 was configured in fixed part 110, workpiece processing end 132 was towards die cavity section 120.Wherein, the circumferential surface S of workpiece processing end 132 comprises a plurality of grooves 133, has space D (such as Fig. 2 C) between per two adjacent trenches 133; Perhaps, these grooves 133 are integrated and extend spirally and be formed on circumferential surface S.Described drift 13 (comprising these a plurality of grooves 133) can utilize a micro shaping processing machine (not illustrating) to make, but is not limited to this.
In detail, the first die holder assembly 11 more can comprise a plurality of bolt parts 111 and corresponding holding pad 112 in die cavity section 120.Wherein each bolt part 111 is contour and be provided with elastic component 113 (for example spring), and these bolt parts 111 utilize its corresponding elastic component 113 and are configured between fixed part 110 and the holding pad 112.
Preferably; more can comprise to guide the guide pillar 14 that little building mortion 1 of extending carries out mold closing or die sinking between the first die holder assembly 11 and the second die holder assembly 12; and the first die holder assembly 11 and/or the second die holder assembly 12 more can comprise corresponding guide pillar 14 to avoid guide pillar 14 because directly contacting the guide pillar lining 15 that damages the first die holder assembly 11 and/or the second die holder assembly 12, so that guide pillar lining 15 has the effect of protection guide pillar 14.
Fixed part 110 more can comprise drift backboard 110a, punch fixing plate 110b and the fixture in order to drift backboard 110a is engaged with punch fixing plate 110b, and described fixture can be comprised of alignment pin 114a and bolt 114b.Wherein, the stiff end 131 of drift 13 can be resisted against drift backboard 110a and be positioned on the punch fixing plate 110b.In addition, die cavity section 120 more can comprise die cavity backboard 120a and be positioned at die cavity 120b on the die cavity backboard 120a.In the same manner, the second die holder assembly 12 can have fixture so that die cavity backboard 120a is fixed, and the fixture of described the second die holder assembly 12 can be comprised of alignment pin 121a and bolt 121b.
Please consult simultaneously Fig. 2 A ~ Fig. 2 C, Fig. 2 B is the schematic diagram after the drift of Fig. 2 A is processed dull and stereotyped stock; Fig. 2 C comprises a plurality of grooves for the circumferential surface of the workpiece of the drift of Fig. 2 A processing end and frictional force is provided and extends and make every effort to promote the schematic diagram that dull and stereotyped stock can more evenly be stretched.
Shown in Fig. 2 A, when operator's wish dull and stereotyped stock 20 is extended to be shaped and add man-hour, the operator is positioned at dull and stereotyped stock (for example sheet material) between holding pad 112 and the die cavity 120b, and in driving little extending during building mortion 1, utilize the guiding of guide pillar 14 can make the first die holder assembly 11 gradually near the second die holder assembly 12, at this moment, shown in Fig. 2 B, the elastic component 113 between fixed part 110 and holding pad 112 is subject to compressing (that is state of mold closing).
Then, can be when 13 pairs of dull and stereotyped stocks 20 of drift be extended shaping processing, these grooves 133 (having space D between these grooves 133) that the circumferential surface S of the workpiece processing end 132 of drift 13 comprises can sequentially provide a frictional force and the tensile force f of extending by the direction of the drift 13 downward application of forces, thickness W1 with the upper fillet R1 that impels dull and stereotyped stock 20 can down be stretched (this part can be consulted Fig. 2 C), and (that is the thickness W1 of upper fillet R1 can not be accumulated and outside thickening, more can avoid the problem of the fold that produces), and because the unnecessary thickness of part of upper fillet R1 is with down fillet R2 place, so that the thickness W1 of upper fillet R1, the thickness W2 of lower fillet R2 and thickness between the two can keep promoting than uniformity extended overall quality after being shaped of dull and stereotyped stock 20.And behind the state of die sinking, the operator can take out rear and the more uniform dull and stereotyped stock 20 of thickness of being shaped of being extended.
See also Fig. 2 D ~ Fig. 2 F, Fig. 2 D is the section schematic diagram triangular in shape that its workpiece of drift of the little building mortion of extending of another embodiment of the present invention is processed a plurality of grooves of end; Fig. 2 E is that the section of a plurality of grooves of its workpiece of drift processing end of the little building mortion of extending of another embodiment of the present invention is trapezoidal schematic diagram; Fig. 2 F is that its workpiece of drift of the little building mortion of extending of another embodiment of the present invention is processed the schematic diagram of the section semicircular in shape of a plurality of grooves of holding.
By Fig. 2 D ~ Fig. 2 F as can be known, the section of a plurality of grooves of comprising of the circumferential surface S of the workpiece of above-mentioned drift processing end can be regular shape.For example, the section of these grooves 133a of Fig. 2 D drift 13a is triangle; The section of these grooves 133b of Fig. 2 E drift 13b is trapezoidal; The section of these grooves 133c of Fig. 2 F drift 13c is half elliptic, semicircle (arc or waveform).
Certainly, along with design is different, the section of these grooves that the circumferential surface of the workpiece processing end of drift comprises can comprise regular shape, irregularly shaped or other geometry, is not limited to the exposure of Fig. 2 D ~ Fig. 2 F.
See also Fig. 2 G, Fig. 2 G is that the section of a plurality of grooves of its workpiece of drift processing end of the little building mortion of extending of another embodiment of the present invention is difform schematic diagram.
Shown in Fig. 2 G, the section of these grooves 133d of Fig. 2 G drift 13d is irregular shape, and described irregular shape includes the shape that is comprised of several straight lines or curve.
Hence one can see that, can make the dull and stereotyped stock thickness after forming of being extended can keep than uniformity and then promote overall quality by these kenels.
See also Fig. 3, Fig. 3 is that the drift of the little building mortion of extending of another embodiment of the present invention is one to be the schematic diagram of the structure of boring column.
(ask for an interview the right enlarged drawing) as shown in Figure 3, drift 2 is the cone column structure, and (that is contiguous drift 2 stiff ends 231 are thicker; Contiguous workpiece processing end 232 is thinner), the circumferential surface S2 of workpiece processing end 232 comprises a plurality of grooves 233, has spacing between these grooves 233; Perhaps, these grooves 233 are integrated and extend spirally and be formed on circumferential surface S2.
Utilization has the drift 2 of cone column structure, can be quicker and gradually layer ground down be stretched that (that is the thickness W3 of upper fillet R3 can not be accumulated and outside thickening in the thickness W3 of the upper fillet R3 of dull and stereotyped stock 30, more can avoid the problem of the fold that produces), and because the unnecessary thickness of part of upper fillet R3 is with down fillet R4 place, so that the thickness W4 of thickness W3, the lower fillet R4 of upper fillet R3 and thickness between the two can keep can promoting equally than uniformity the overall quality of dull and stereotyped stock 30 after by the shaping of being extended.
From the above, the little building mortion of extending that has the drift of groove structure and use this drift of the present invention has following characteristics:
1. can be in drift be extended shaping processing to dull and stereotyped stock when, a plurality of grooves that the circumferential surface of the workpiece processing end of drift comprises can sequentially provide by the direction of the downward application of force of drift a frictional force and the power of extending, thickness with the upper fillet that impels dull and stereotyped stock can down be stretched, and (that is the thickness of the upper fillet of dull and stereotyped stock can not be accumulated and outside thickening, more can avoid the problem of the fold that produces), and because the unnecessary thickness of part of upper fillet is with down fillet place, so that the thickness of upper fillet, the thickness of lower fillet and thickness between the two can keep promoting than uniformity extended overall quality after being shaped of dull and stereotyped stock.
2. utilize the drift with cone column structure, in the thickness of the upper fillet of dull and stereotyped stock can be quicker and gradually layer ground down be stretched.
3. the section of a plurality of grooves of comprising of the circumferential surface of the workpiece of drift processing end can comprise regular shape, irregularly shaped or other geometry.
In sum, only notebook invention is not the scope that limits patent working of the present invention for presenting preferred embodiments or the embodiment of the technological means that adopts of dealing with problems.Be that patent claim context all and of the present invention conforms to, or change and modification according to the equalization that claim of the present invention is done, be all claim of the present invention and contain.
Claims (16)
1. the drift with groove structure is characterized in that, comprises:
One main body has workpiece processing end, and the circumferential surface of this workpiece processing end comprises a plurality of grooves.
2. have as claimed in claim 1 the drift of groove structure, it is characterized in that, have spacing between per two adjacent trenches.
3. have as claimed in claim 1 the drift of groove structure, it is characterized in that, these a plurality of grooves are formed on this circumferential surface for extending spirally.
4. have as claimed in claim 1 the drift of groove structure, it is characterized in that, this main body is one to be the structure of boring column.
5. have as claimed in claim 1 the drift of groove structure, it is characterized in that, the section of these a plurality of grooves is triangular in shape, square, trapezoidal, half elliptic or semicircle.
6. have as claimed in claim 1 the drift of groove structure, it is characterized in that, the section of these a plurality of grooves includes the shape that is comprised of several straight lines or curve.
7. a drift has little building mortion of extending of groove structure, it is characterized in that, comprises:
One first die holder assembly comprises a fixed part;
One second die holder assembly, position are with respect to this first die holder assembly, and this second die holder assembly comprises a die cavity section; And
One drift has the relatively workpiece processing end of this stiff end of a stiff end and position, and this stiff end is in order to be configured in this fixed part, and this workpiece processing end is towards this die cavity section, and the circumferential surface of this workpiece processing end comprises a plurality of grooves.
8. drift has little building mortion of extending of groove structure as claimed in claim 7, it is characterized in that, this the first die holder assembly more comprises a plurality of bolt parts and a corresponding holding pad in this die cavity section, this each bolt part is provided with an elastic component, and these a plurality of bolt parts utilize this elastic component of its correspondence and are configured between this fixed part and this holding pad.
9. drift has little building mortion of extending of groove structure as claimed in claim 8, it is characterized in that, more comprises a guide pillar between this first die holder assembly and this second die holder assembly, and this first die holder assembly more comprises a guide pillar lining that should guide pillar.
10. drift has little building mortion of extending of groove structure as claimed in claim 8, it is characterized in that, the fixture that this fixed part more comprises a drift backboard, a punch fixing plate and this drift backboard is engaged with this punch fixing plate, this stiff end of this drift is resisted against this drift backboard and is positioned on this punch fixing plate.
11. drift has little building mortion of extending of groove structure as claimed in claim 8, it is characterized in that, this die cavity section more comprises a die cavity backboard and is positioned at a die cavity on this die cavity backboard.
12. drift has little building mortion of extending of groove structure as claimed in claim 7, it is characterized in that, has spacing between per two adjacent trenches.
13. drift has little building mortion of extending of groove structure as claimed in claim 7, it is characterized in that, these a plurality of grooves are formed on this circumferential surface for extending spirally.
14. drift has little building mortion of extending of groove structure as claimed in claim 7, it is characterized in that, this drift is one to be the structure of boring column.
15. drift has little building mortion of extending of groove structure as claimed in claim 7, it is characterized in that, the section of these a plurality of grooves is triangular in shape, square, trapezoidal, half elliptic or semicircle.
16. drift has little building mortion of extending of groove structure as claimed in claim 7, it is characterized in that the section of these a plurality of grooves includes the shape that is comprised of several straight lines or curve.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW100138245 | 2011-10-21 | ||
| TW100138245A TWI577540B (en) | 2011-10-21 | 2011-10-21 | A punch having a raised structure and a micro-extension forming apparatus to which the application is made |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103056220A true CN103056220A (en) | 2013-04-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103949391A Pending CN103056220A (en) | 2011-10-21 | 2012-10-17 | Punch with groove structure and micro-stretching forming device applying punch |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20130098132A1 (en) |
| CN (1) | CN103056220A (en) |
| TW (1) | TWI577540B (en) |
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2011
- 2011-10-21 TW TW100138245A patent/TWI577540B/en active
-
2012
- 2012-10-17 CN CN2012103949391A patent/CN103056220A/en active Pending
- 2012-10-18 US US13/655,206 patent/US20130098132A1/en not_active Abandoned
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| CN201239761Y (en) * | 2008-05-31 | 2009-05-20 | 比亚迪股份有限公司 | Gasket mould |
| CN201394612Y (en) * | 2009-04-27 | 2010-02-03 | 宁波跃进汽车前桥有限公司 | Punch structure of hole-flanging device |
| CN202049088U (en) * | 2011-02-22 | 2011-11-23 | 宝山钢铁股份有限公司 | Experimental die used for testing tube forming |
| CN102615166A (en) * | 2012-03-27 | 2012-08-01 | 吉林省元隆达工装设备有限公司 | Internal high pressure forming die |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104511529A (en) * | 2013-09-30 | 2015-04-15 | 国立高雄第一科技大学 | Bending die with surface micro-structure and bending punch thereof |
| CN103949550A (en) * | 2014-05-20 | 2014-07-30 | 哈尔滨工业大学 | Foil plate conical element variable blank holder force deep drawing-blanking composite forming device and method |
| CN103949550B (en) * | 2014-05-20 | 2015-10-28 | 哈尔滨工业大学 | The method of paper tinsel plate Tapered Cup pressure variable edge force drawing-stamping-out combined shaping |
| CN105127289A (en) * | 2014-06-06 | 2015-12-09 | 高雄第一科技大学 | Extension die with lower die provided with microstructure |
| CN104959467A (en) * | 2015-07-29 | 2015-10-07 | 王宏斌 | Low-vibration stamping die |
| CN104998976A (en) * | 2015-08-21 | 2015-10-28 | 江苏久日数控机床有限公司 | Bending tool for CNC bending machine |
| CN112020399A (en) * | 2018-07-02 | 2020-12-01 | 惠普发展公司，有限责任合伙企业 | Stamped part with metal flow receiving features |
| CN111633124A (en) * | 2020-06-02 | 2020-09-08 | 山西恒跃锻造有限公司 | Stamping die convenient to change |
| CN113020380A (en) * | 2021-03-13 | 2021-06-25 | 山东大学 | Step-by-step stamping forming method |
| CN113020380B (en) * | 2021-03-13 | 2022-01-28 | 山东大学 | Step-by-step stamping forming method |
| CN114101501A (en) * | 2021-11-25 | 2022-03-01 | 山东大学 | Stamping die and method for ultrasonic impact and microtexture processing composite treatment |
Also Published As
| Publication number | Publication date |
|---|---|
| US20130098132A1 (en) | 2013-04-25 |
| TWI577540B (en) | 2017-04-11 |
| TW201317119A (en) | 2013-05-01 |
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Application publication date: 20130424 |