CN109807222B - Electromagnetic micro-blanking device and method - Google Patents
Electromagnetic micro-blanking device and method Download PDFInfo
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- CN109807222B CN109807222B CN201910247945.6A CN201910247945A CN109807222B CN 109807222 B CN109807222 B CN 109807222B CN 201910247945 A CN201910247945 A CN 201910247945A CN 109807222 B CN109807222 B CN 109807222B
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Abstract
The invention provides an electromagnetic micro-blanking device and method, and relates to the technical field of mechanical manufacturing and plastic micro-forming. The electromagnetic micro-blanking device comprises a coil, a driving plate, a punch, a female die fixing plate, a pressure plate and a guide module; by adopting the design with the punch, the problems of insufficient forming capability and poor forming effect caused by small characteristic dimension in the traditional single-die electromagnetic blanking process are solved. The invention is a high-speed blanking technology, compared with other micro-blanking processes, the invention has the advantages of high forming precision, low residual stress, convenient realization of automation and the like; the present invention applies an electromagnetic forming process to micro-blanking processes for a variety of materials, including materials with poor electrical conductivity.
Description
Technical Field
The invention relates to the technical field of mechanical manufacturing and plastic micro-forming, in particular to an electromagnetic micro-blanking device and method.
Background
The microporous thin plate part has very wide application in various oil (steam) injection nozzles, microelectronic integrated circuits, space electronics, lead frames and the like, and has very high requirement on dimensional precision. However, the existing electromagnetic punching and flanging device for the alloy plate is only suitable for high-conductivity plates and large holes, and when the conductivity of the plates is poor or the aperture is smaller than 1mm, the problem of insufficient forming capability exists.
Disclosure of Invention
The invention aims to provide an electromagnetic micro-blanking device and method, which solve the problems of poor sheet conductivity or insufficient forming capability when the aperture is small.
In order to achieve the purpose, the invention provides the following scheme:
an electromagnetic micro-blanking device comprises a base, a coil, a driving plate, a punch, a female die fixing plate, a pressure plate and a guide module;
the coil is in threaded connection with the base;
the drive plate is located above the coil;
the punch is fixed on the driving plate, and the blanking direction of the punch points to the female die;
the lower surface of the female die fixing plate is provided with an upward concave groove, and the female die is fixed in the groove;
the lower surface of the female die is provided with a female die groove which is sunken upwards, and the size of the punch is matched with the sunken size of the female die groove;
a plate to be formed is placed between the punch and the female die;
the material pressing plate is positioned below the female die fixing plate and partially overlapped with the female die;
the material pressing plate is used for pressing the plate upwards on the female die;
one end of the guide module is in sliding connection with the drive plate, and the other end of the guide module is fixedly connected with the female die fixing plate;
the guide module is used for guiding the vertical movement of the driving plate.
Optionally, the method further includes: a power supply system; the power supply system is electrically connected with the coil; the power supply system is used for supplying power to the coil.
Optionally, the method further includes: a buffer module; the buffer module is used for buffering the upward impact force of the driving plate;
the buffer module includes: the device comprises a limiting plate, a buffering medium and a strut;
one end of the strut is connected with the female die fixing plate through a bolt, and the other end of the strut is connected with the upper surface of the limiting plate through a bolt;
the buffer medium is bonded with the lower surface of the limiting plate;
the limiting plate is used for preventing the punch from colliding with the female die fixing plate;
the buffer medium is used for preventing the driving plate and the limiting plate from generating hard impact.
Optionally, the method further includes: a blank holder force adjusting module;
the blank holder power adjustment module includes: the screw rod, the pressure spring and the adjusting nut;
blank holder force adjusting holes are formed in the material pressing plate and the female die fixing plate; the screw rod sequentially penetrates through the material pressing plate and the female die fixing plate from bottom to top through the blank holder force adjusting hole and supports the material pressing plate;
the pressure spring is sleeved on the part of the screw rod penetrating out of the female die fixing plate;
the adjusting nut is placed on the pressure spring and is in threaded connection with the screw;
the blank pressing force adjusting module is used for adjusting the blank pressing force of the blank pressing plate for pressing the plate.
Optionally, the guiding module includes: a guide sleeve and a guide pillar;
the driving plate is provided with a guide sleeve hole, and the guide sleeve is placed in the guide sleeve hole and is bonded with the guide sleeve hole;
one end of the guide pillar is in rolling connection with the guide sleeve, and the other end of the guide pillar is connected with the female die fixing plate through a bolt.
Optionally, the driving board has one or more layers, and at least one layer is made of a high-conductivity material.
Optionally, at least one layer of the driving plate is copper or aluminum or a copper alloy or an aluminum alloy.
Optionally, the plate is a metal sheet, and the thickness of the plate is 0.05-1 mm.
An electromagnetic micro-blanking method is applied to the electromagnetic micro-blanking device;
the electromagnetic micro-blanking method comprises the following steps:
obtaining blanking parameters;
placing a plate to be formed between a pressure plate and a female die;
the blank pressing force adjusting module is adjusted to tightly press the plate to be formed;
electrifying the coil and starting blanking;
and after blanking, adjusting the blank holder force adjusting module to take out the formed plate.
According to the specific embodiment provided by the invention, the invention discloses the following technical effects:
the invention adopts the design with the punch, thereby solving the problems of insufficient forming capability and poor forming effect caused by small characteristic dimension in the traditional single-die electromagnetic blanking process; compared with the traditional electromagnetic micro-forming process, the driving plate stops advancing by impacting the elastic medium, cannot deform due to impact and can be repeatedly used; the invention adopts a bolt pressure spring structure for edge pressing, and can more accurately control the edge pressing force compared with the traditional electromagnetic micro-forming process for edge pressing only by using bolts. Meanwhile, the invention is a high-speed blanking technology, and compared with other micro-blanking processes, the invention has the advantages of high forming precision, low residual stress, convenience for realizing automation and the like; the present invention applies an electromagnetic forming process to micro-blanking processes for a variety of materials, including materials with poor electrical conductivity.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
Fig. 1 is a structural view of an electromagnetic micro-blanking apparatus provided in embodiment 1 of the present invention;
fig. 2 is a structural view of a driving plate of an electromagnetic micro-blanking device provided in embodiment 1 of the present invention;
fig. 3 is a cross-sectional view of a circular buffering module of an electromagnetic micro-blanking device according to embodiment 1 of the present invention;
fig. 4 is a top view of a circular buffering module of the electromagnetic micro-blanking apparatus provided in embodiment 1 of the present invention;
fig. 5 is a flowchart of an electromagnetic micro-blanking method provided in embodiment 2 of the present invention.
Wherein, 1, a base; 2. forming a coil; 3. a drive plate; 4. a buffer module; 5. a material pressing plate; 6. fixing a female die plate; 7. a punch fixing plate 8 and a punch; 9. a female die; 10. a blank holder force adjusting module; 11. a plate material; 12. a guide module; 13. a power supply system; 21. a red copper plate layer; 22. 45# steel plate layer; 31. a rubber buffer layer; 32. a steel plate; 41. an elastic buffer medium; 42. a limiting plate; 43. a pillar; 101. a screw; 102. a pressure spring; 103. adjusting the nut; 121. a guide post; 122. a drive guide sleeve; 123. the material guide pin bushing presses.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Example 1
Fig. 1 is a structural diagram of an electromagnetic micro-blanking apparatus provided in embodiment 1 of the present invention. Referring to fig. 1, an electromagnetic micro blanking device includes a base 1, a coil, a driving plate 3, a punch 8, a die 9, a die fixing plate 6, a pressure plate 5, and a guide module 12.
The coil is connected with the base 1 through screw threads. The coil adopts a formed coil 2.
The driver plate 3 is located above the coil and, in the non-blanking time, the driver plate 3 presses with its own weight on the coil. The driving plate 3 has one or more layers, and at least one layer is made of a high-conductivity material. At least one layer of the driving plate 3 is copper or aluminum or copper alloy or aluminum alloy.
The driving plate 3 may be a driving plate 3 having a double-layer structure, and fig. 2 is a structural diagram of the driving plate 3 of the electromagnetic micro-blanking apparatus provided in embodiment 1 of the present invention. Referring to fig. 2, the double-layer structure of the driving plate 3 includes a high-conductivity red copper plate layer 21 and a 45# steel plate layer 22. The red copper plate layer 21 is connected with the 45# steel plate layer 22 through bolts, and the bolts are countersunk screws. The red copper plate layer 21 is in contact with the coil, and the high-conductivity material red copper can reduce the resistance, increase the size of eddy current induced in the driving plate 3, and thus increase the electromagnetic force. 45# steel deck 22 is in contact with cushion module 4, and 45# steel deck 22 is in order to increase the intensity of drive plate 3, avoids drive plate 3 to take place to warp when bumping with cushion module 4 to increase the contact strength with guide pin bushing 112, avoid the contact area of drive plate 3 and guide pin bushing 112 to take place to warp and influence the direction.
The punch 8 is fixed on the driving plate 3, and the punching direction of the punch 8 points to the female die 9. Preferably, the punch 8 is fixed on the driving plate 3 through a punch fixing plate 7, the punch fixing plate 7 is fixed on the driving plate 3 through a positioning pin, and the punch fixing plate 7 is used for fixing and positioning the punch 8.
The lower surface of the die fixing plate 6 is provided with an upward concave groove, and the die 9 is fixed in the groove.
The lower surface of the female die 9 is provided with a female die 9 groove which is sunken upwards, the size of the punch 8 is matched with the sunken size of the female die 9 groove, and the gap between the punch 8 and the female die 9 is a blanking gap.
And a sheet material 11 to be formed is placed between the punch 8 and the female die 9. The plate 11 is a metal thin plate, the thickness h is 0.05-1 mm, and the plate 11 is made of titanium alloy or magnesium alloy.
The pressure plate 5 is positioned below the die fixing plate 6 and partially overlapped with the die 9.
The pressure plate 5 is used for pressing the plate 11 upwards on the concave die 9.
One end of the guide module 12 is slidably connected with the drive plate 3, and the other end is fixedly connected with the female die fixing plate 6.
The guide module 12 serves to guide the vertical movement of the driving plate 3. The guide module 12 includes: a driving guide sleeve 122, a material pressing guide sleeve 123 and a guide post 121.
The driving plate 3 is provided with a driving guide sleeve hole, and the driving guide sleeve 122 is placed in the driving guide sleeve hole and is connected with the driving guide sleeve hole in an adhesion or interference fit manner.
One end of the guide post 121 is connected with the driving guide sleeve 122 in a rolling manner, and the other end is connected with the die fixing plate 6 through a bolt.
The pressing plate 5 is provided with a pressing guide sleeve hole, the pressing guide sleeve 123 is placed in the pressing guide sleeve hole and is bonded or in interference fit with the pressing guide sleeve hole, and the pressing plate 5 is slidably connected with the guide post 121 through the pressing guide sleeve 123.
The electromagnetic micro-blanking device further comprises: a power supply system 13. The power supply system 13 is electrically connected with the coil; the power supply system 13 is used to supply power to the coils.
The power supply system 13 includes: a high voltage adjustable DC power supply, an energy storage capacitor and a switch. The high-voltage adjustable direct-current power supply is used for charging the energy storage capacitor, a voltage transformation system is arranged in the high-voltage adjustable direct-current power supply, the principle of the high-voltage adjustable direct-current power supply is the same as that of a general transformer, and the output voltage is adjusted by adjusting the number of turns of a coil connected into a loop. Two ends of the energy storage capacitor are connected with two ends of the coil through a switch, and the on-off of the current is controlled through the switch. After the power supply system 13 discharges the coil, eddy current is induced and generated in the driving plate 3, so that the electromagnetic force of the coil drives the punch 8 to move towards the plate 11, and the plate 11 is blanked and formed.
The electromagnetic micro-blanking device further comprises: and a buffer module 4. The buffer module 4 is used for buffering the upward impact force of the driving plate 3. The shape of the buffer module 4 can be designed according to the shape of the drive plate 3, so as to obtain the maximum buffer area of the drive plate 3, and specifically, the maximum buffer area can be circular, square or other irregular shapes. The buffer module 4 includes: a limit plate 42, a cushioning medium, and a strut 43.
One end of the support column 43 is connected to the die fixing plate 6 by a bolt, and the other end is connected to the upper surface of the stopper plate 42 by a bolt. The support column 43 passes through the nip plate 5, but does not come into contact with the nip plate 5.
The cushioning medium is bonded to the lower surface of the stopper plate 42. The buffer medium is an elastic buffer medium 41, and the elastic buffer medium 41 may be made of rubber or other elastic materials.
The retainer plate 42 serves to prevent the punch 8 from colliding with the die holder 6, and also to protect the punch 8 from colliding with other structures.
The buffer medium is used for preventing the driving plate 3 and the limit plate 42 from generating hard impact or hard contact impact.
The guide posts 121 also pass through the cushion module 4 but do not come into contact with the cushion module 4.
The electromagnetic micro-blanking device further comprises: and a blank holder force adjusting module 10. The blank holder force adjusting module 10 includes: a screw 101, a pressure spring 102 and an adjusting nut 103.
Blank holder force adjusting holes are formed in the material pressing plate 5 and the female die fixing plate 6; the screw 101 sequentially penetrates through the pressure plate 5 and the die fixing plate 6 from bottom to top through the edge pressing force adjusting hole, the pressure plate 5 is supported, the pressure plate 5 is dragged by the head of the specific screw 101, and the screw 101 is a long screw.
The pressure spring 102 is sleeved on the part of the screw 101 which penetrates out of the die fixing plate 6.
The adjusting nut 103 is matched with the screw 101, and the adjusting nut 103 is placed on the pressure spring 102 and is in threaded connection with the screw 101. The adjusting nut 103 is a blank holder force adjusting nut 103, the length of the screw 101 is adjusted by screwing or unscrewing the adjusting nut 103, the blank holder force on the material pressing plate 5 is adjusted by changing the compression amount of the pressure spring 102, and then the material pressing plate 5 is lifted up or put down to press the plate material 11 or load and unload the plate material. A washer may also be placed between the pressure spring 102 and the adjusting nut 103.
The blank holder force adjusting module is used for adjusting the blank holder force of the blank holder pressing plate, the compression amount of the spring is changed by adjusting an adjusting nut 103 in the blank holder force adjusting module, and then the blank holder force of the blank holder pressing plate on the blank is adjusted. The concrete working process of the blank holder force adjusting module is as follows: when loading is needed, the blank holder force adjusting nut 103 is unscrewed, and the material is loaded after the material pressing plate is put down. After charging, the blank holder force adjusting nut 103 is screwed, the blank holder is lifted, and the compression amount of the pressure spring is determined according to the required blank holder force and the elastic modulus of the pressure spring.
The traditional blank holder force adjusting method only screws the bolt by using a spanner, and cannot know the accurate blank holder force. The invention adopts the bolt and spring structure to carry out edge pressing, and can calculate the edge pressing force through the pressing amount and the elastic modulus of the spring, so that the edge pressing force can be more conveniently and accurately controlled compared with the traditional method for adjusting the edge pressing by only using the bolt in the electromagnetic micro-forming process.
Example 2
Fig. 5 is a flowchart of an electromagnetic micro-blanking method provided in embodiment 2 of the present invention. Referring to fig. 5, an electromagnetic fine blanking method is applied to the electromagnetic fine blanking apparatus of embodiment 1.
The electromagnetic micro-blanking method comprises the following steps:
And step 203, adjusting the blank holder force adjusting module to press the plate. The method specifically comprises the following steps: and adjusting the adjusting nut in the blank holder force adjusting module according to the required blank holder force.
And step 204, electrifying the coil and starting blanking. The forming coil is discharged by a power supply system. After discharging, the forming coil induces eddy current in the driving plate and generates repulsive force to the driving plate, and the driving plate drives the punch to move towards the female die to perform blanking forming on the plate material.
And step 205, after blanking, adjusting the blank holder force adjusting module to take out the plate. The method specifically comprises the following steps: and adjusting the blank holder force adjusting nut, removing the blank holder force of the material pressing plate, and taking out the formed plate.
Example 3
An electromagnetic fine blanking method is applied to the electromagnetic fine blanking device of embodiment 1. The present embodiment is different from embodiment 2 in that:
the method comprises the following steps: according to the blanking parameters that the material to be formed is a TA1 pure titanium thin plate, the thickness of the material to be formed is 100 mu m, and the diameter of the micropore to be formed is 1mm, the diameter of a punch is 1.00mm, the aperture of a concave die is 1.01mm, the discharge capacitance is 100 mu F, and the discharge voltage is 2 kV.
Step two: and adjusting the blank holder force adjusting nut to lower the material pressing plate, and placing the TA1 pure titanium thin plate between the material pressing plate and the female die.
Step three: and adjusting the blank holder force adjusting nut to lift the material pressing plate, and screwing the adjusting nut according to the required blank holder force to ensure that the pressure spring has a specific compression amount.
Step four: after the power supply system discharges the coil, the driving plate with the double-layer structure, the lower layer of which is a red copper plate layer and the upper layer of which is a 45# steel plate layer, drives the punch to rapidly punch the thin plate. After blanking, the driving plate impacts the rubber buffer layer to stop advancing.
Step five: adjusting a blank holder force adjusting nut, removing the blank holder force, lowering the material pressing plate, taking out the thin plate, and completing blanking.
Example 4
An electromagnetic fine blanking method is applied to the electromagnetic fine blanking device of embodiment 1. The present embodiment is different from embodiment 3 in that:
the method comprises the following steps: according to the blanking parameters that the material to be formed is an AZ31 magnesium alloy plate, the thickness of the material to be formed is 400 mu m, the diameter of a micropore to be formed is 2mm, the diameter of a punch is 2.00mm, the aperture of a concave die is 2.04mm, the discharge capacitance is 100 mu F, and the discharge voltage is 5 kV.
Step two: and adjusting the blank holder force adjusting nut to lower the material pressing plate, and placing the AZ31 magnesium alloy plate between the material pressing plate and the female die.
Step three: and adjusting the blank holder force adjusting nut to lift the material pressing plate, and screwing the adjusting nut according to the required blank holder force to enable the pressure spring to have a specific compression amount.
Step four: after the power supply system discharges the coil, the driving plate with the double-layer structure, the lower layer of which is the red copper plate layer and the upper layer of which is the 45# steel plate layer, drives the punch to rapidly punch the magnesium alloy plate, and after punching is finished, the driving plate impacts the rubber buffer layer to stop advancing.
Step five: and adjusting a blank holder force adjusting nut, removing the blank holder force, lowering the material pressing plate, taking out the magnesium alloy plate, and completing blanking.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The principles and embodiments of the present invention have been described herein using specific examples, which are provided only to help understand the method and the core concept of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (7)
1. An electromagnetic micro blanking device is characterized by comprising a base, a coil, a driving plate, a punch, a female die fixing plate, a pressure plate and a guide module;
the coil is in threaded connection with the base;
the drive plate is located above the coil;
the punch is fixed on the driving plate, and the blanking direction of the punch points to the female die;
the lower surface of the female die fixing plate is provided with an upward concave groove, and the female die is fixed in the groove;
the lower surface of the female die is provided with a female die groove which is sunken upwards, and the size of the punch is matched with the sunken size of the female die groove;
a plate to be formed is placed between the punch and the female die;
the material pressing plate is positioned below the female die fixing plate and partially overlapped with the female die;
the material pressing plate is used for pressing the plate upwards on the female die;
one end of the guide module is in sliding connection with the drive plate, and the other end of the guide module is fixedly connected with the female die fixing plate;
the guide module is used for guiding the vertical motion of the driving plate;
the guide module includes: a guide sleeve and a guide pillar;
the driving plate is provided with a guide sleeve hole, and the guide sleeve is placed in the guide sleeve hole and is bonded with the guide sleeve hole;
one end of the guide pillar is in rolling connection with the guide sleeve, and the other end of the guide pillar is connected with the female die fixing plate through a bolt;
the electromagnetic micro blanking device further comprises: a blank holder force adjusting module;
the blank holder power adjustment module includes: the screw rod, the pressure spring and the adjusting nut;
blank holder force adjusting holes are formed in the material pressing plate and the female die fixing plate; the screw rod sequentially penetrates through the material pressing plate and the female die fixing plate from bottom to top through the blank holder force adjusting hole and supports the material pressing plate;
the pressure spring is sleeved on the part of the screw rod penetrating out of the female die fixing plate;
the adjusting nut is placed on the pressure spring and is in threaded connection with the screw;
the blank pressing force adjusting module is used for adjusting the blank pressing force of the blank pressing plate for pressing the plate.
2. The electromagnetic micro blanking device of claim 1, further comprising: a power supply system; the power supply system is electrically connected with the coil; the power supply system is used for supplying power to the coil.
3. The electromagnetic micro blanking device of claim 1, further comprising: a buffer module; the buffer module is used for buffering the upward impact force of the driving plate;
the buffer module includes: the device comprises a limiting plate, a buffering medium and a strut;
one end of the strut is connected with the female die fixing plate through a bolt, and the other end of the strut is connected with the upper surface of the limiting plate through a bolt;
the buffer medium is bonded with the lower surface of the limiting plate;
the limiting plate is used for preventing the punch from colliding with the female die fixing plate;
the buffer medium is used for preventing the driving plate and the limiting plate from generating hard impact.
4. The electromagnetic micro-blanking device of claim 1, wherein the driving plate is one or more layers and at least one layer is a high conductivity material.
5. Electromagnetic micro blanking device according to claim 4, wherein at least one layer of the driving plate is copper or aluminum or a copper alloy or an aluminum alloy.
6. The electromagnetic micro blanking device of claim 1, wherein the plate is a metal sheet with a thickness of 0.05-1 mm.
7. An electromagnetic fine blanking method, characterized by being applied to the electromagnetic fine blanking apparatus according to any one of claims 1 to 6;
the electromagnetic micro-blanking method comprises the following steps:
obtaining blanking parameters;
placing a plate to be formed between a pressure plate and a female die;
the blank pressing force adjusting module is adjusted to tightly press the plate to be formed;
electrifying the coil and starting blanking;
and after blanking, adjusting the blank holder force adjusting module to take out the formed plate.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201889519U (en) * | 2010-12-03 | 2011-07-06 | 天水锻压机床有限公司 | Pressure plate device for closed steel plate edge milling machine |
| CN107234161A (en) * | 2017-06-30 | 2017-10-10 | 厦门理工学院 | A kind of electric current auxiliary selenoid punch press process device and its control method |
| JP2018051662A (en) * | 2016-09-27 | 2018-04-05 | 公立大学法人首都大学東京 | Method for manufacturing processed plate material |
| CN207266988U (en) * | 2017-10-11 | 2018-04-24 | 华中科技大学 | A kind of electromagnetic forming device of metal sheet |
| CN207709686U (en) * | 2017-12-08 | 2018-08-10 | 惠州市平进模具有限公司 | A kind of diel with antifatigue wear-resisting guide post |
| CN109248964A (en) * | 2018-10-30 | 2019-01-22 | 福州大学 | A kind of no rivet connector and its working method |
-
2019
- 2019-03-29 CN CN201910247945.6A patent/CN109807222B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201889519U (en) * | 2010-12-03 | 2011-07-06 | 天水锻压机床有限公司 | Pressure plate device for closed steel plate edge milling machine |
| JP2018051662A (en) * | 2016-09-27 | 2018-04-05 | 公立大学法人首都大学東京 | Method for manufacturing processed plate material |
| CN107234161A (en) * | 2017-06-30 | 2017-10-10 | 厦门理工学院 | A kind of electric current auxiliary selenoid punch press process device and its control method |
| CN207266988U (en) * | 2017-10-11 | 2018-04-24 | 华中科技大学 | A kind of electromagnetic forming device of metal sheet |
| CN207709686U (en) * | 2017-12-08 | 2018-08-10 | 惠州市平进模具有限公司 | A kind of diel with antifatigue wear-resisting guide post |
| CN109248964A (en) * | 2018-10-30 | 2019-01-22 | 福州大学 | A kind of no rivet connector and its working method |
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