CN215902554U - Stainless steel stamping die - Google Patents
Stainless steel stamping die Download PDFInfo
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- CN215902554U CN215902554U CN202122373193.3U CN202122373193U CN215902554U CN 215902554 U CN215902554 U CN 215902554U CN 202122373193 U CN202122373193 U CN 202122373193U CN 215902554 U CN215902554 U CN 215902554U
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- beryllium copper
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Abstract
The utility model discloses a stainless steel stamping die which comprises a stamping male die made of a steel material, wherein a beryllium copper coating is coated on a pressing edge of the stamping male die. According to the die, the beryllium copper coating is coated, performance and process optimization is carried out, the coexistence of the obdurability and the wear resistance of the male die and the pressing edge is realized, the hardness of the working surface is improved, the reliability and the service life of the pressing edge are obviously improved, the equipment cost is reduced, the beryllium copper has good thermal conductivity and is not easy to be adhered to stainless steel, the galling problem can be solved, the polishing frequency of the die can be reduced, and the product quality is improved.
Description
Technical Field
The utility model relates to the technical field of dies, in particular to a stainless steel stamping die.
Background
Wrinkling is one of the most important problems that plague metal stamping, and wrinkling defects cause many undesirable consequences and, in the worst case, the formation of stacks. The main method for eliminating the wrinkling defect is to adjust the feeding resistance and balance the stress state in each direction in the material, and in practice, the wrinkling defect can be solved by increasing the blank holder force or supplementing the process.
The pressing edge of the stainless steel stamping die is usually made of alloy cast iron, but due to poor thermal conductivity and low hardness, the stainless steel is seriously bonded during stamping, so that the problems of wrinkling, galling and the like are caused, the stainless steel stamping die needs to be replaced regularly, and the cost is increased.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects and defects of the prior art, the utility model provides the stainless steel stamping die, which improves the wear resistance of the material pressing plate, prolongs the service life of the material pressing plate and reduces the equipment cost by adding the beryllium copper coating on the material pressing edge of the stamping die.
In order to achieve the above object, the present invention provides the following technical solutions.
A stainless steel stamping die comprises a stamping male die made of a steel material, wherein a material pressing edge of the stamping male die is coated with a beryllium copper coating.
The utility model has the beneficial effects that: according to the die, the beryllium copper coating is coated, performance and process optimization is carried out, the coexistence of the obdurability and the wear resistance of the male die and the pressing edge is realized, the hardness of the working surface is improved, the reliability and the service life of the pressing edge are obviously improved, the equipment cost is reduced, the beryllium copper has good thermal conductivity and is not easy to be adhered to stainless steel, the galling problem can be solved, the polishing frequency of the die can be reduced, and the product quality is improved.
As an improvement of the utility model, the thickness of the beryllium copper coating is 0.5-2 mm.
As an improvement of the utility model, the beryllium copper comprises Cu-2Be-0.3 Ni. Through the improvement, the beryllium copper coating has no magnetism, no spark in impact and seawater corrosion resistance, and has excellent mechanical property, physical property and chemical property after solid solution and aging treatment.
As an improvement of the utility model, the beryllium copper coating is coated on the pressing edge of the stamping male die in a laser cladding mode. Through the improvement, the beryllium copper powder is fully melted by laser cladding, the metal on the surface layer of the pressing edge of the pressing die is rapidly melted by the high-energy laser beam, the coating material and the pressing edge material of the pressing die are mutually diffused to form a high-strength bonding interface, and on the other hand, the coating material is rapidly solidified into a cladding layer with high hardness due to the extremely high cooling rate of the laser cladding.
As an improvement of the present invention, the beryllium copper coating is laser-clad by a laser cladding device, the laser cladding device includes a nozzle, a cladding channel for conveying beryllium copper powder is arranged on the nozzle, and a reflection focusing group mirror is arranged in the nozzle, the reflection focusing group mirror focuses and reflects a laser beam to form a cladding beam, and the cladding beam forms a cladding point at an outlet of the cladding channel to clad the beryllium copper powder output by the cladding channel.
As a modification of the utility model, the nozzle is provided with a cooling water channel at the periphery.
As an improvement of the utility model, the number of the cladding channels is two, the cladding beams are arranged at the center, and the two cladding channels are symmetrically arranged by taking the cladding beams as the center.
As an improvement of the utility model, the nozzle further forms a gas channel for conveying shielding gas, the shielding gas forms a protective area after being sprayed out through the gas channel, and the protective area coats the cladding point.
Drawings
Fig. 1 is a schematic view of a structure of the punching male die of the present invention in which a swaged edge is fitted with a beryllium copper coating.
Fig. 2 is a schematic view of a structure of the laser cladding device of the present invention matching with a pressing edge of a stamping male die.
In the figure: 1. stamping a male die; 1.1, pressing edges; 2. a beryllium copper coating; 3. a nozzle; 3.1, cladding a channel; 3.2, reflecting and focusing a lens set; 3.3, cladding the light beam; 3.4, a cooling water channel; 3.5, a gas channel; 3.6, protection area.
Detailed Description
The utility model is further explained with reference to the drawings.
Referring to fig. 1, the stainless steel stamping die comprises a stamping male die 1 made of a steel material, wherein the stamping male die 1 is provided with a pressing edge 1.1 for pressing, and the pressing edge 1.1 of the stamping male die 1 is provided with a protective coating, in the application, a protective protrusion is a beryllium copper coating 2, the protective coating adopts a coaxial powder feeding type laser cladding process, and beryllium copper is used as a cladding material, so that the pressing edge 1.1 of the stamping male die 1 is finally coated with the beryllium copper coating 2. The thickness of the beryllium copper coating 2 is 0.5-2 mm. The beryllium copper is Cu-2Be-0.3Ni, so that the beryllium copper coating 2 is nonmagnetic, impact sparkless and seawater corrosion resistant, and has excellent mechanical property, physical property and chemical property after solid solution and aging treatment.
The beryllium copper coating 2 is coated on a material pressing edge 1.1 of the stamping male die 1 in a laser cladding mode. The beryllium copper powder is fully melted by the laser cladding mode, the metal on the surface layer of the pressing edge 1.1 of the pressing die is rapidly melted by the high-energy laser beam, the material of the beryllium copper coating 2 and the material of the pressing edge 1.1 of the pressing die are mutually diffused to form a high-strength bonding interface, and on the other hand, the material of the beryllium copper coating 2 is rapidly solidified into a cladding layer with high hardness due to the extremely high cooling rate of the laser cladding.
The beryllium copper coating 2 manufactured by the laser cladding technology is light and thin in quality, good in quality, low in rejection rate and easy to form automatic production, so that the pressing edge 1.1 has obdurability, wear resistance and high hardness, the high-pressure working requirement of the pressing edge 1.1 is met, the working life and the working quality of the pressing edge 1.1 are prolonged, and the production cost is reduced. And the cladding layer manufactured by the laser cladding technology is thin, the heat affected zone is small, the workpiece is not easy to deform, and the dimensional accuracy of the processed material pressing edge 1.1 is higher. The laser cladding material can be rapidly cooled, so that the crystal grains of the coating material are very fine, and compared with an as-cast beryllium copper material, the hardness and the wear resistance of the material can be greatly improved. The wear resistance of the beryllium copper coating 2 is improved by more than 50 percent and the hardness is improved by 1 time compared with the alloy cast iron, and compared with the hardness of an as-cast beryllium copper material, the hardness is improved by more than 2 times, the service life is prolonged, and the economic benefit is increased.
Specifically, the beryllium copper coating 2 is laser-clad by a laser cladding device, as shown in fig. 2, the laser cladding device includes a nozzle 3, the nozzle 3 is integrally conical, a cladding channel 3.1 for conveying beryllium copper powder is arranged on the nozzle 3, and a reflection focusing group mirror 3.2 is arranged in the nozzle 3, the reflection focusing group mirror 3.2 focuses and reflects a laser beam to form a cladding beam 3.3, the cladding beam 3.3 is arranged at the center of the nozzle 3 and is axially arranged, the number of the cladding channels 3.1 is two, the two cladding channels 3.1 are symmetrically distributed with the cladding beam 3.3 as the center, and the outlet of the cladding channel 3.1 is inclined towards the center, so that the cladding channel 3.1 can output the beryllium copper powder to the center, the cladding beam 3.3 forms a cladding point at the outlet of the cladding channel 3.1, and the beryllium copper powder output by the cladding channel 3.1 is fully melted by the cladding beam 3.3, meanwhile, cladding light beams 3.3 quickly melt the surface layer metal of the material pressing edge 1.1 of the stamping male die 1, and the coating material and the matrix material are mutually diffused to form a high-strength bonding interface.
The periphery of the nozzle 3 is provided with a cooling water channel 3.4, and cooling water flows through the cooling water channel so as to cool the periphery of the nozzle 3. The nozzle 3 is also provided with a gas channel 3.5 for conveying protective gas, the protective gas is sprayed out through the gas channel 3.5 to form a protective area 3.6, and the cladding point is coated by the protective area 3.6. In this embodiment, the shielding gas is argon gas, the number of the gas channels 3.5 is two, the two gas channels 3.5 are arranged in central symmetry, the shielding gas is sprayed out through the gas channels 3.5 to form a protective area 3.6, and the protective area 3.6 coats the cladding point, so that the cladding beam 3.3 is protected by the shielding gas when cladding is performed, and interference of external factors is avoided.
The manufacturing method of the beryllium copper coating 2 specifically comprises the following steps:
a. cleaning the surface of the material pressing edge by using an ultrasonic cleaning machine to remove oil stains, rust stains and dust impurities;
b. preparing beryllium copper powder, and drying the powder, wherein the powder is prepared by an air atomization method, and the particle size of the spherical powder is 180-mesh and 200-mesh;
c, preheating the powder and pressing the edge substrate for two hours at 200 ℃;
d. performing laser treatment to obtain a cladding layer, and adopting argon as a protective gas for protection during cladding;
e. and (3) heat treatment: and (4) performing stress relief annealing at 595 ℃ on the pressed edge.
According to the die, the beryllium copper coating 2 is coated, performance and process optimization is carried out, the coexistence of the obdurability and the wear resistance of the male die and the pressing edge 1.1 is realized, the hardness of the working surface is improved, the reliability and the service life of the pressing edge 1.1 are obviously improved, the equipment cost is reduced, the beryllium copper has good thermal conductivity and is not easy to be adhered to stainless steel, the galling problem can be solved, the polishing frequency of the die can be reduced, and the product quality is improved.
The above description is only a preferred embodiment of the present invention, and all equivalent changes or modifications of the structure, characteristics and principles described in the present invention are included in the scope of the present invention.
Claims (8)
1. A stainless steel stamping die is characterized in that: the stamping device comprises a stamping male die made of a steel material, wherein a beryllium copper coating is coated on a pressing edge of the stamping male die.
2. The stainless steel stamping die of claim 1, wherein: the thickness of the beryllium copper coating is 0.5-2 mm.
3. The stainless steel stamping die of claim 1, wherein: the beryllium copper contains Cu-2Be-0.3 Ni.
4. The stainless steel stamping die of claim 1, wherein: the beryllium copper coating is coated on a pressing edge of the stamping male die in a laser cladding mode.
5. The stainless steel stamping die of claim 4, wherein: the beryllium copper coating carries out laser cladding through a laser cladding device, the laser cladding device comprises a nozzle, a cladding channel and a reflection focusing group mirror, the cladding channel is used for conveying beryllium copper powder, the reflection focusing group mirror is arranged in the nozzle, the reflection focusing group mirror focuses and reflects laser beams to form cladding beams, and the cladding beams form cladding points at an outlet of the cladding channel so as to clad the beryllium copper powder output by the cladding channel.
6. The stainless steel stamping die of claim 5, wherein: and a cooling water channel is arranged at the periphery of the nozzle.
7. The stainless steel stamping die of claim 5, wherein: the number of the cladding channels is two, the cladding beams are arranged at the center, and the two cladding channels are symmetrically arranged by taking the cladding beams as the center.
8. The stainless steel stamping die of claim 5, wherein: the nozzle also forms a gas channel for conveying protective gas, the protective gas is sprayed out through the gas channel to form a protective area, and the protective area coats the cladding point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122373193.3U CN215902554U (en) | 2021-09-29 | 2021-09-29 | Stainless steel stamping die |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122373193.3U CN215902554U (en) | 2021-09-29 | 2021-09-29 | Stainless steel stamping die |
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| CN215902554U true CN215902554U (en) | 2022-02-25 |
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| CN202122373193.3U Active CN215902554U (en) | 2021-09-29 | 2021-09-29 | Stainless steel stamping die |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114453504A (en) * | 2022-04-13 | 2022-05-10 | 保定市精工汽车模具技术有限公司 | Preparation method of cutting edge of stamping die |
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2021
- 2021-09-29 CN CN202122373193.3U patent/CN215902554U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114453504A (en) * | 2022-04-13 | 2022-05-10 | 保定市精工汽车模具技术有限公司 | Preparation method of cutting edge of stamping die |
| CN114453504B (en) * | 2022-04-13 | 2022-07-12 | 保定市精工汽车模具技术有限公司 | Preparation method of cutting edge of stamping die |
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