CN111215521A - Punch forming process for automobile covering part - Google Patents
Punch forming process for automobile covering part Download PDFInfo
- Publication number
- CN111215521A CN111215521A CN201811416918.9A CN201811416918A CN111215521A CN 111215521 A CN111215521 A CN 111215521A CN 201811416918 A CN201811416918 A CN 201811416918A CN 111215521 A CN111215521 A CN 111215521A
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- CN
- China
- Prior art keywords
- percent
- blank
- die
- automobile
- covering 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
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/001—Shaping combined with punching, e.g. stamping and perforating
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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
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/002—Processes combined with methods covered by groups B21D1/00 - B21D31/00
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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 punch forming process of an automobile covering part, which comprises the following steps: 1) blanking and deep drawing: placing the blank on a pressing surface of a drawing die, and starting a press to draw and form the automobile panel blank in one step; the blank is an aluminum alloy plate, and the aluminum alloy plate comprises the following components in percentage by mass: 5 to 8 percent of magnesium, 2 to 5 percent of nickel, 0.8 to 2.5 percent of zinc, 0.2 to 0.8 percent of iron, 0.1 to 0.5 percent of copper, 0.02 to 0.05 percent of silicon, 0.01 to 0.04 percent of cobalt, 0.05 to 0.08 percent of titanium and the balance of aluminum; 2) shaping; 3) trimming; 4) and (5) flanging and punching. Through the mode, the process is simple and easy to control, and the prepared automobile covering part is good in surface quality and high in dimensional accuracy.
Description
Technical Field
The invention relates to the technical field of stamping, in particular to a stamping forming process of an automobile covering part.
Background
The fuel consumption can be saved by 0.6-1.0% when the mass of the automobile is reduced by 1%, the emission of CO2 can be reduced by about 5g/km when the automobile is reduced by 100kg, and the emission of tail gas of 20kg can be reduced in the service life when 1kg of aluminum is used in the car. The weight reduction of automobiles has been a inevitable trend.
Therefore, the existing automobile covering parts are generally formed by punching aluminum alloy materials, the shapes of the automobile covering parts are complex, the surface quality requirement is high, any tiny defect on the surface of the covering parts can cause diffuse reflection of light after painting to damage the appearance, and therefore, bulges, impressions, strain, wrinkles, waves, necking, cracking and other defects which destroy the surface aesthetic feeling are not allowed on the surface of the covering parts. However, when the existing stamping process is adopted to manufacture the automobile covering part, the defects of complex process, low surface quality and dimensional accuracy of the formed covering part and the like exist.
Disclosure of Invention
The invention mainly solves the technical problem of providing the punch forming process of the automobile covering part, the process is simple and easy to control, and the manufactured automobile covering part has good surface quality and high dimensional precision.
In order to solve the technical problems, the invention adopts a technical scheme that: the stamping forming process of the automobile covering part comprises the following steps:
1) blanking and deep drawing: placing the blank on a pressing surface of a drawing die, and starting a press to draw and form the automobile panel blank in one step; the blank is an aluminum alloy plate, and the aluminum alloy plate comprises the following components in percentage by mass: 5 to 8 percent of magnesium, 2 to 5 percent of nickel, 0.8 to 2.5 percent of zinc, 0.2 to 0.8 percent of iron, 0.1 to 0.5 percent of copper, 0.02 to 0.05 percent of silicon, 0.01 to 0.04 percent of cobalt, 0.05 to 0.08 percent of titanium and the balance of aluminum;
2) shaping: shaping the automobile panel blank formed by primary deep drawing by using a shaping die;
3) trimming: placing the shaped automobile covering part blank on a trimming male die, and trimming by a trimming female die;
4) flanging and punching: and placing the trimmed automobile panel blank on a flanging die for flanging, and punching after flanging.
In a preferred embodiment of the invention, the thickness of the aluminum alloy plate is 2-3 mm.
In a preferred embodiment of the present invention, the drawing die is a double-acting drawing die, and a male die of the double-acting drawing die is provided with a vent hole.
In a preferred embodiment of the invention, the diameter of the vent hole is 10-15mm, and the vent hole can prevent air from being present between the punch and the blank when the punch is drawn downwards so that the blank cannot be completely attached to the die.
The invention has the beneficial effects that: the automobile covering part is formed by one-step drawing and stamping of the self-developed aluminum alloy plate, has the characteristics of simple and easily-controlled process and low production cost, and the prepared automobile covering part has good surface quality and high dimensional precision.
Detailed Description
The following detailed description of the preferred embodiments of the present invention is provided to enable those skilled in the art to more readily understand the advantages and features of the present invention, and to clearly and unequivocally define the scope of the present invention.
The embodiment of the invention comprises the following steps:
the first embodiment is as follows:
a punch forming process for an automobile covering part comprises the following steps:
1) blanking and deep drawing: placing the blank on a pressing surface of a double-acting drawing die, and starting a press to draw and form the automobile panel blank in one step; the blank is an aluminum alloy plate, and the aluminum alloy plate comprises the following components in percentage by mass: 5% of magnesium, 4% of nickel, 2% of zinc, 0.8% of iron, 0.5% of copper, 0.05% of silicon, 0.04% of cobalt, 0.08% of titanium and 87.53% of aluminum;
2) shaping: shaping the automobile panel blank formed by primary deep drawing by using a shaping die;
3) trimming: placing the shaped automobile covering part blank on a trimming male die, and trimming by a trimming female die;
4) flanging and punching: and placing the trimmed automobile panel blank on a flanging die for flanging, and punching after flanging.
Wherein, the thickness of the aluminum alloy plate is 2 mm.
And a male die of the double-acting drawing die is provided with a vent hole, and the diameter of the vent hole is 10 mm.
Example two:
a punch forming process for an automobile covering part comprises the following steps:
1) blanking and deep drawing: placing the blank on a pressing surface of a double-acting drawing die, and starting a press to draw and form the automobile panel blank in one step; the blank is an aluminum alloy plate, and the aluminum alloy plate comprises the following components in percentage by mass: 6% of magnesium, 5% of nickel, 2.5% of zinc, 0.2% of iron, 0.1% of copper, 0.02% of silicon, 0.02% of cobalt, 0.06% of titanium and 86.1% of aluminum;
2) shaping: shaping the automobile panel blank formed by primary deep drawing by using a shaping die;
3) trimming: placing the shaped automobile covering part blank on a trimming male die, and trimming by a trimming female die;
4) flanging and punching: and placing the trimmed automobile panel blank on a flanging die for flanging, and punching after flanging.
Wherein, the thickness of the aluminum alloy plate is 2.5 mm.
The double-acting drawing die is characterized in that the male die of the double-acting drawing die is provided with vent holes, the diameter of each vent hole is 12mm, and the vent holes can prevent air from existing between the male die and a blank during downward drawing of the male die so that the blank cannot be completely attached to the die.
Example three:
a punch forming process for an automobile covering part comprises the following steps:
1) blanking and deep drawing: placing the blank on a pressing surface of a double-acting drawing die, and starting a press to draw and form the automobile panel blank in one step; the blank is an aluminum alloy plate, and the aluminum alloy plate comprises the following components in percentage by mass: 8% of magnesium, 2% of nickel, 0.8% of zinc, 0.4% of iron, 0.2% of copper, 0.02% of silicon, 0.01% of cobalt, 0.05% of titanium and 88.52% of aluminum;
2) shaping: shaping the automobile panel blank formed by primary deep drawing by using a shaping die;
3) trimming: placing the shaped automobile covering part blank on a trimming male die, and trimming by a trimming female die;
4) flanging and punching: and placing the trimmed automobile panel blank on a flanging die for flanging, and punching after flanging.
Wherein, the thickness of the aluminum alloy plate is 3 mm.
The double-acting drawing die is characterized in that the male die of the double-acting drawing die is provided with vent holes, the diameter of each vent hole is 15mm, and the vent holes can prevent air from being arranged between the male die and a blank during downward drawing of the male die so that the blank cannot be completely attached to the die.
The invention discloses a stamping forming process of an automobile covering part, which is formed by stamping an aluminum alloy plate which is researched and developed by self through one-step drawing, and has the characteristics of simple and easily-controlled process and low production cost, and the manufactured automobile covering part has good surface quality and high dimensional precision.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (4)
1. The stamping forming process of the automobile covering part is characterized by comprising the following steps of:
1) blanking and deep drawing: placing the blank on a pressing surface of a drawing die, and starting a press to draw and form the automobile panel blank in one step; the blank is an aluminum alloy plate, and the aluminum alloy plate comprises the following components in percentage by mass: 5 to 8 percent of magnesium, 2 to 5 percent of nickel, 0.8 to 2.5 percent of zinc, 0.2 to 0.8 percent of iron, 0.1 to 0.5 percent of copper, 0.02 to 0.05 percent of silicon, 0.01 to 0.04 percent of cobalt, 0.05 to 0.08 percent of titanium and the balance of aluminum;
2) shaping: shaping the automobile panel blank formed by primary deep drawing by using a shaping die;
3) trimming: placing the shaped automobile covering part blank on a trimming male die, and trimming by a trimming female die;
4) flanging and punching: and placing the trimmed automobile panel blank on a flanging die for flanging, and punching after flanging.
2. The automobile panel punch forming process according to claim 1, wherein the thickness of the aluminum alloy plate is 2-3 mm.
3. The punch forming process of the automobile covering part according to claim 1, wherein the drawing die is a double-acting drawing die, and a male die of the double-acting drawing die is provided with a vent hole.
4. The automobile panel press-forming process as claimed in claim 3, wherein the diameter of the vent hole is 10 to 15 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811416918.9A CN111215521A (en) | 2018-11-26 | 2018-11-26 | Punch forming process for automobile covering part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811416918.9A CN111215521A (en) | 2018-11-26 | 2018-11-26 | Punch forming process for automobile covering part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111215521A true CN111215521A (en) | 2020-06-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811416918.9A Pending CN111215521A (en) | 2018-11-26 | 2018-11-26 | Punch forming process for automobile covering part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111215521A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112676454A (en) * | 2020-12-09 | 2021-04-20 | 东风(武汉)实业有限公司 | Swing arm stamping process method and swing arm |
-
2018
- 2018-11-26 CN CN201811416918.9A patent/CN111215521A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112676454A (en) * | 2020-12-09 | 2021-04-20 | 东风(武汉)实业有限公司 | Swing arm stamping process method and swing arm |
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Legal Events
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200602 |