CN111112418A - Metal sheet metal part stamping process - Google Patents
Metal sheet metal part stamping process Download PDFInfo
- Publication number
- CN111112418A CN111112418A CN201911227900.9A CN201911227900A CN111112418A CN 111112418 A CN111112418 A CN 111112418A CN 201911227900 A CN201911227900 A CN 201911227900A CN 111112418 A CN111112418 A CN 111112418A
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- CN
- China
- Prior art keywords
- temperature
- sheet metal
- metal plate
- mold
- metal part
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/02—Stamping using rigid devices or tools
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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
- 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
-
- 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
- B21D37/18—Lubricating, e.g. lubricating tool and workpiece simultaneously
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
The invention discloses a metal sheet metal part stamping process, which relates to the field of sheet metal part machining processes and comprises the following steps: (1) cutting a stainless steel plate to obtain a required metal plate, putting the metal plate into a heating furnace, heating to 840-900 ℃, heating at a speed of 30-40 ℃/min, and keeping the temperature for 20-40min and then cooling the furnace; (2) spraying a layer of high-temperature-resistant grease in the mold, preheating the mold to the temperature of 240 plus materials of 300 ℃, preserving heat, clamping the metal plate by using a manipulator when the temperature of the metal plate is reduced to be consistent with that of the mold, quickly transferring the metal plate into the mold for punch forming, and naturally cooling to room temperature to obtain a blank of the sheet metal part; (3) the sheet metal part is placed in a heating furnace to be heated to 180-200 ℃, is subjected to heat preservation for 10-15min, is then cooled to room temperature in air, and is washed by clear water to obtain the sheet metal part.
Description
Technical Field
The invention relates to the field of sheet metal part machining processes, in particular to a metal sheet metal part stamping process.
Background
The stamping is a press working method which uses a die arranged on a press machine to apply pressure on a sheet metal material under certain pressure to separate or plastically deform the sheet metal material so as to obtain a required part.
The precision requirement of the stamping process on the process is very high, if one process cannot meet the process requirement, the subsequent process further enlarges the error of the workpiece, so that the sheet metal part cannot be used, and the waste report of the workpiece is caused. In the field of stamping process, two modes of isothermal stamping forming and differential temperature stamping forming are generally adopted for stamping forming of light alloys such as sheet metal parts, wherein isothermal stamping forming is adopted, the plastic deformation capacity of the light alloys such as the sheet metal parts can be obviously improved, the stamping forming performance is improved, but concentrated plastic deformation is easily generated at the corner part of a male die in the forming process, and premature cracking of the stamping parts is caused, so that the stamping performance of the light alloy stamping parts such as the sheet metal parts is limited, and the stamping performance of the sheet metal parts can be effectively improved by the other type of differential temperature stamping forming, but along with the reduction of temperature, the resilience of the sheet metal parts can be increased sharply, the size stability can be seriously influenced, and the thickness distribution of the stamping parts is uneven.
In addition, most of the existing stamping dies are difficult to meet the performance of using under extremely severe working conditions, and after hundreds of stamping, the dies need to be repaired, and thousands of times of stamping are scrapped, which is also a problem needing to be improved in the stamping process.
Disclosure of Invention
In order to solve the technical problems, the invention provides a metal sheet metal part stamping process and a corresponding die, which have the advantages of low process operation difficulty, stable size of the sheet metal part, uniform thickness distribution, difficult cracking and deformation, and greatly prolonged service life of the die.
In order to achieve the purpose, the technical scheme of the invention is as follows: a metal sheet stamping process comprises the following steps:
step 1, cutting a stainless steel plate to obtain a required metal plate, heating the metal plate in a heating furnace to 840-900 ℃, wherein the heating speed is 30-40 ℃/min, and keeping the temperature for 20-40min and then cooling the furnace;
step 2, spraying a layer of high-temperature-resistant grease in the mold, preheating the mold to 300 ℃ for heat preservation, clamping the metal plate by using a manipulator when the temperature of the metal plate is reduced to be consistent with that of the mold, quickly transferring the metal plate into the mold for punch forming, wherein the pressure for punch forming is 800-1000t, and naturally cooling to room temperature after pressure preservation and cooling to 120 ℃ for heat preservation to obtain a sheet metal part blank;
and 3, placing the sheet metal part into a heating furnace, heating to 180-200 ℃, preserving heat for 10-15min, then air-cooling to room temperature, and washing with clear water to obtain the sheet metal part.
In a preferable embodiment of the present invention, the thickness of the stainless steel plate is 2 to 5 cm.
In a preferable embodiment of the present invention, the thickness of the high temperature resistant grease layer is 0.2-0.5 mm.
Through the technical scheme, the technical scheme of the invention has the following remarkable beneficial effects: the method comprises the steps of heating the metal plate to 840-900 ℃ for complete austenitization, reducing the temperature to 240-300 ℃, converting the internal structure of the metal plate into austenite and martensite inclusions, stamping at the moment, reducing the required stamping pressure, reducing energy consumption, performing pressure-maintaining cooling, ensuring the size of the sheet metal part to be stable, ensuring the thickness to be uniformly distributed, preventing cracking and deformation, completely austenitizing the internal structure of the metal plate after natural cooling, and improving the strength, hardness and toughness of the sheet metal part.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to 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.
Example 1
A metal sheet stamping process comprises the following steps:
(1) cutting a stainless steel plate with the thickness of 3cm to obtain a required metal plate, putting the metal plate into a heating furnace, heating to 850 ℃, keeping the temperature for 30min, and cooling the furnace;
(2) spraying a layer of high-temperature-resistant grease with the thickness of 0.3mm in a mold, preheating the mold to 250 ℃, preserving heat, clamping the metal plate by using a manipulator when the temperature of the metal plate is reduced to be consistent with that of the mold, quickly transferring the metal plate into the mold for punch forming, wherein the pressure of the punch forming is 900t, maintaining the pressure, cooling to 110 ℃, and naturally cooling to room temperature to obtain a blank of the sheet metal part;
(3) and putting the sheet metal part into a heating furnace, heating to 190 ℃, keeping the temperature for 13min, then air-cooling to room temperature, and washing with clear water to obtain the sheet metal part.
Example 2
A metal sheet stamping process comprises the following steps:
(1) cutting a stainless steel plate with the thickness of 2cm to obtain a required metal plate, putting the metal plate into a heating furnace, heating to 840 ℃ at the heating speed of 40 ℃/min, and keeping the temperature for 40min and then cooling the furnace;
(2) spraying a layer of high-temperature-resistant grease with the thickness of 0.2mm in a mold, preheating the mold to 280 ℃ and preserving heat, clamping the metal plate by using a manipulator when the temperature of the metal plate is reduced to be consistent with that of the mold, quickly transferring the metal plate into the mold for punch forming, wherein the pressure of the punch forming is 1000t, and naturally cooling to room temperature after maintaining the pressure and cooling to 100 ℃ to obtain a blank of the sheet metal part;
(3) and putting the sheet metal part into a heating furnace, heating to 200 ℃, keeping the temperature for 14min, then air-cooling to room temperature, and washing with clear water to obtain the sheet metal part.
Example 3
A metal sheet stamping process comprises the following steps:
(1) cutting a stainless steel plate with the thickness of 5cm to obtain a required metal plate, putting the metal plate into a heating furnace, heating to 880 ℃, keeping the temperature for 35min, and cooling the furnace;
(2) spraying a layer of high-temperature-resistant grease with the thickness of 0.2mm in a mold, preheating the mold to 260 ℃ and preserving heat, clamping the metal plate by using a manipulator when the temperature of the metal plate is reduced to be consistent with that of the mold, quickly transferring the metal plate into the mold for punch forming, wherein the pressure of the punch forming is 800t, and naturally cooling to room temperature after maintaining the pressure and cooling to 100 ℃ to obtain a blank of the sheet metal part;
(3) and putting the sheet metal part into a heating furnace, heating to 200 ℃, keeping the temperature for 15min, then air-cooling to room temperature, and washing with clear water to obtain the sheet metal part.
Example 4:
a metal sheet stamping process comprises the following steps:
(1) cutting a stainless steel plate with the thickness of 2cm to obtain a required metal plate, putting the metal plate into a heating furnace, heating to 840 ℃ at the heating speed of 30 ℃/min, and keeping the temperature for 20min and then cooling the furnace;
(2) spraying a layer of high-temperature-resistant grease with the thickness of 0.2mm in a mold, preheating the mold to 240 ℃ and preserving heat, clamping the metal plate by using a mechanical arm when the temperature of the metal plate is reduced to be consistent with that of the mold, quickly transferring the metal plate into the mold for punch forming, wherein the pressure of the punch forming is 800t, and naturally cooling to room temperature after maintaining the pressure and cooling to 100 ℃ to obtain a blank of the sheet metal part;
(3) and putting the sheet metal part into a heating furnace, heating to 180 ℃, preserving heat for 10min, then air-cooling to room temperature, and washing with clear water to obtain the sheet metal part.
Example 5:
a metal sheet stamping process comprises the following steps:
(1) cutting a stainless steel plate with the thickness of 5cm to obtain a required metal plate, putting the metal plate into a heating furnace, heating to 900 ℃, keeping the temperature for 40min, and cooling the furnace;
(2) spraying a layer of high-temperature-resistant grease with the thickness of 0.5mm in a mold, preheating the mold to 300 ℃, preserving heat, clamping the metal plate by using a manipulator when the temperature of the metal plate is reduced to be consistent with that of the mold, quickly transferring the metal plate into the mold for punch forming, wherein the pressure of the punch forming is 1000t, and naturally cooling to room temperature after maintaining the pressure and cooling to 120 ℃ to obtain a blank of the sheet metal part;
(3) and putting the sheet metal part into a heating furnace, heating to 200 ℃, keeping the temperature for 15min, then air-cooling to room temperature, and washing with clear water to obtain the sheet metal part.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (3)
1. A metal sheet stamping process is characterized by comprising the following steps:
step 1, cutting a stainless steel plate to obtain a required metal plate, putting the metal plate into a heating furnace, heating to 840-900 ℃, heating at a speed of 30-40 ℃/min, and keeping the temperature for 20-40min and then cooling the furnace;
step 2, spraying a layer of high-temperature-resistant grease in the mold, preheating the mold to 300 ℃ and preserving heat, clamping the metal plate by using a manipulator when the temperature of the metal plate is reduced to be consistent with that of the mold, quickly transferring the metal plate into the mold for punch forming, wherein the pressure of the punch forming is 800-degree, after the metal plate is cooled to 120 ℃ under the pressure maintaining condition, naturally cooling to room temperature to obtain a blank of the sheet metal part;
and 3, placing the sheet metal part into a heating furnace, heating to 180-200 ℃, preserving heat for 10-15min, then air-cooling to room temperature, and washing with clear water to obtain the sheet metal part.
2. The metal sheet metal part stamping process according to claim 1, wherein the thickness of the stainless steel plate is 2-5 cm.
3. The stamping process for sheet metal parts as claimed in claim 1, wherein the thickness of the layer of high temperature grease is 0.2-0.5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911227900.9A CN111112418A (en) | 2019-12-04 | 2019-12-04 | Metal sheet metal part stamping process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911227900.9A CN111112418A (en) | 2019-12-04 | 2019-12-04 | Metal sheet metal part stamping process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111112418A true CN111112418A (en) | 2020-05-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911227900.9A Withdrawn CN111112418A (en) | 2019-12-04 | 2019-12-04 | Metal sheet metal part stamping process |
Country Status (1)
| Country | Link |
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| CN (1) | CN111112418A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112605206A (en) * | 2020-12-10 | 2021-04-06 | 江苏龙穰轻合金科技有限公司 | Aluminum profile door plate stamping process |
| CN114226589A (en) * | 2021-12-23 | 2022-03-25 | 扬州康迪科技有限公司 | Novel stamping process for metal plate of automobile body covering part |
| EP4019199A1 (en) | 2020-12-11 | 2022-06-29 | Polmotors Spolka Z Ograniczona Odpowiedzialnoscia | Gripper frame for industrial robot |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106734464A (en) * | 2016-12-10 | 2017-05-31 | 宋世林 | A kind of Novel sheet metal part Sheet Metal Forming Technology |
| CN107584026A (en) * | 2017-11-02 | 2018-01-16 | 江苏钧骋车业有限公司 | A kind of Sheet Metal Forming Technology of sheet metal component and corresponding mould |
| CN108941237A (en) * | 2018-06-21 | 2018-12-07 | 成都华翔轿车消声器有限公司 | A kind of automotive high intensity steel plate punched moulding process |
-
2019
- 2019-12-04 CN CN201911227900.9A patent/CN111112418A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106734464A (en) * | 2016-12-10 | 2017-05-31 | 宋世林 | A kind of Novel sheet metal part Sheet Metal Forming Technology |
| CN107584026A (en) * | 2017-11-02 | 2018-01-16 | 江苏钧骋车业有限公司 | A kind of Sheet Metal Forming Technology of sheet metal component and corresponding mould |
| CN108941237A (en) * | 2018-06-21 | 2018-12-07 | 成都华翔轿车消声器有限公司 | A kind of automotive high intensity steel plate punched moulding process |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112605206A (en) * | 2020-12-10 | 2021-04-06 | 江苏龙穰轻合金科技有限公司 | Aluminum profile door plate stamping process |
| EP4019199A1 (en) | 2020-12-11 | 2022-06-29 | Polmotors Spolka Z Ograniczona Odpowiedzialnoscia | Gripper frame for industrial robot |
| CN114226589A (en) * | 2021-12-23 | 2022-03-25 | 扬州康迪科技有限公司 | Novel stamping process for metal plate of automobile body covering part |
| CN114226589B (en) * | 2021-12-23 | 2023-11-17 | 扬州康迪科技有限公司 | Stamping process for sheet metal of automobile body panel |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| WW01 | Invention patent application withdrawn after publication | ||
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Application publication date: 20200508 |