CN114769455A - Manufacturing method of high-strength lightweight brake disc shield - Google Patents
Manufacturing method of high-strength lightweight brake disc shield Download PDFInfo
- Publication number
- CN114769455A CN114769455A CN202210414160.5A CN202210414160A CN114769455A CN 114769455 A CN114769455 A CN 114769455A CN 202210414160 A CN202210414160 A CN 202210414160A CN 114769455 A CN114769455 A CN 114769455A
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- station
- blank
- flanging
- brake disc
- shield
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 12
- 238000004080 punching Methods 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 8
- 238000007493 shaping process Methods 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims abstract description 4
- 238000005520 cutting process Methods 0.000 claims description 11
- 229910000838 Al alloy Inorganic materials 0.000 claims description 10
- SNAAJJQQZSMGQD-UHFFFAOYSA-N aluminum magnesium Chemical compound [Mg].[Al] SNAAJJQQZSMGQD-UHFFFAOYSA-N 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 7
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 229910052804 chromium Inorganic materials 0.000 claims description 3
- 239000011651 chromium Substances 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 229910052749 magnesium Inorganic materials 0.000 claims description 3
- 239000011777 magnesium Substances 0.000 claims description 3
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- 239000010936 titanium Substances 0.000 claims description 3
- 229910052719 titanium Inorganic materials 0.000 claims description 3
- 239000011701 zinc Substances 0.000 claims description 3
- 229910052725 zinc Inorganic materials 0.000 claims description 3
- 238000009966 trimming Methods 0.000 abstract description 5
- 229910000831 Steel Inorganic materials 0.000 abstract description 4
- 239000010959 steel Substances 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000007731 hot pressing Methods 0.000 abstract 1
- 238000003825 pressing Methods 0.000 description 3
- 239000007888 film coating Substances 0.000 description 2
- 238000009501 film coating Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000013502 plastic waste Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
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
- B21D53/00—Making other particular articles
- B21D53/88—Making other particular articles other parts for vehicles, e.g. cowlings, mudguards
-
- 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
-
- 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
-
- 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
- B21D35/003—Simultaneous forming, e.g. making more than one part per stroke
-
- 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
- B21D35/005—Processes combined with methods covered by groups B21D1/00 - B21D31/00 characterized by the material of the blank or the workpiece
-
- 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
- B21D37/08—Dies with different parts for several steps in a process
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/06—Alloys based on aluminium with magnesium as the next major constituent
- C22C21/08—Alloys based on aluminium with magnesium as the next major constituent with silicon
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Braking Arrangements (AREA)
Abstract
The invention discloses a manufacturing method of a high-strength lightweight brake disc shield, which is characterized by comprising the following steps of: the method comprises the following steps of S1, blank material selection, S2, stretch forming, S3, first trimming and punching, S4, second trimming and punching, S5 and flanging and shaping, wherein the stretch shaping adopts a local hot pressing process. The beneficial effects of the invention include: the shield has high structural strength, can completely replace the original steel shield, and has the advantages of high shield forming rate, reduced processing cost and improved processing efficiency.
Description
Technical Field
The invention relates to the field of automobile part manufacturing, in particular to a manufacturing method of a high-strength light brake disc shield.
Background
The disc brake realizes braking through friction of a brake disc, is commonly used for braking a front wheel of a car, has the characteristics of simple structure, convenient adjustment, high sensitivity and small radial dimension, but the brake disc is stained with sand and dust soil to influence the braking effect of the brake disc, therefore, a dustproof cover is generally added on the outer side of the brake disc, the dustproof cover of the current brake disc is formed by stamping a steel plate, a semicircular annular curved plate structure formed by connecting semicircular annular surfaces with different heights which are parallel to each other is arranged according to the installation requirement, a abdicating notch is arranged at the outer edge part, the disc brake is generally formed by stamping, and in order to ensure the rigidity of the disc brake, the disc brake is prevented from interfering and rubbing a rotating part due to deformation, a thicker plate is required to be used as a raw material for processing, the thickness dimension of a product is larger, a large amount of raw materials are required to be consumed, stamping processing is more difficult, and the processing energy consumption is high, the production cost is high, the weight of the whole vehicle is increased, and the bearing capacity and the service performance of the vehicle body are influenced.
In the prior art, part of aluminum alloy is replaced by aluminum alloy, but the aluminum alloy has poor plasticity, key parts crack according to the traditional punching process, so that the product cannot be used, and then the product is punched by a film coating method, so that although the crack is eliminated, the processing procedure is increased, the processing time is prolonged, the efficiency is not high, the processing cost is increased by film coating, and plastic waste can be generated.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the manufacturing method of the high-strength light brake disc shield, which meets the requirement of 90% strength of the original steel shield and has the advantages of high machining forming rate and high machining efficiency.
In order to achieve the purpose, the invention adopts the following technical scheme:
a manufacturing method of a high-strength lightweight brake disc shield is characterized by comprising the following steps: comprises the following steps of (a) carrying out,
s1, selecting a blank material, and selecting a high-strength light magnesium aluminum alloy thin plate, wherein the magnesium aluminum alloy comprises, by weight, 2.6-3.6% of magnesium, 0.1-0.5% of zinc, 0.3-0.8% of manganese, 0.2-0.6% of chromium, 0.1-1.0% of copper, 0.15-0.5% of titanium, 0.2-0.6% of silicon, and the balance of aluminum;
s2, placing the blank into a first station of a four-station stamping die, carrying out high-frequency heating on the part, corresponding to the part where the mounting hole is formed, of the blank for 5-10 seconds through a heating device on the die before stretching, and carrying out stretch forming on the blank to form a middle concave cavity of the brake disc shield, a concave-convex shape reinforcing structure, a skirt edge and a mounting boss;
s3, placing the blank stretched in the step S2 into a second station of a four-station stamping die, cutting edges and punching for the first time, cutting off an avoidance hole in the center of the brake disc shield and the outer side flash of the front skirt edge,
s4, placing the blank processed in the step S3 into a third station of a four-station stamping die, trimming and punching for the second time, and cutting off an avoidance opening of the brake caliper, a flange on the outer side of a rear skirt edge and a mounting hole;
and S5, placing the blank processed in the step S4 into a fourth station of a four-station stamping die, and performing flanging and shaping, wherein the flanging comprises flanging the periphery of the central avoidance hole and flanging the outer edge of the skirt edge, so as to obtain the product.
Further, in step S2, the drawing depth of the cavity with reference to the skirt is 14.8mm, and the drawing depth of the mounting boss is 29.8 mm.
Further, in the step S5, the flanging height of the periphery of the central avoiding hole is 5.2mm, and the flanging height of the outer edge of the skirt edge is 6 mm.
The beneficial effects of the invention include: the shield has high structural strength, can completely replace the original steel shield, and has the advantages of high shield forming rate, reduced processing cost and improved processing efficiency.
Drawings
FIG. 1 is a process diagram of the present invention;
fig. 2 is a schematic structural view of a four-station stamping die of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments and the accompanying drawings.
A method of manufacturing a high strength lightweight brake disc shroud as shown in fig. 1-2, comprising the steps of:
s1, selecting a blank material, and selecting a high-strength light magnesium aluminum alloy thin plate, wherein the magnesium aluminum alloy comprises, by weight, 2.6-3.6% of magnesium, 0.1-0.5% of zinc, 0.3-0.8% of manganese, 0.2-0.6% of chromium, 0.1-1.0% of copper, 0.15-0.5% of titanium, 0.2-0.6% of silicon, and the balance of aluminum.
And S2, placing the blank into a first station of a four-station stamping die, carrying out high-frequency heating on the part, corresponding to the part where the mounting hole is formed, of the blank for 5-10 seconds through a heating device on the die before stretching, and carrying out stretch forming on the blank to form the middle concave cavity of the brake disc shield, the concave-convex reinforcing structure, the skirt edge and the mounting boss. The drawing depth of the concave cavity with the skirt as reference is 14.8mm, and the drawing depth of the mounting boss is 29.8 mm.
And S3, placing the blank stretched in the step S2 into a second station of a four-station stamping die, cutting edges and punching for the first time, and cutting off an avoidance hole in the center of the brake disc shield and the outer side flash of the front skirt edge.
And S4, placing the blank processed in the step S3 into a third station of a four-station stamping die, trimming and punching for the second time, and cutting off the brake caliper avoiding opening, the outside flash of the rear skirt and the mounting hole.
And S5, placing the blank processed in the step S4 into a fourth station of a four-station stamping die, and flanging and shaping, wherein the flanging and shaping comprise flanging the periphery of the central avoiding hole and flanging the outer edge of the skirt edge, the height of the flanging of the periphery of the central avoiding hole is 5.2mm, and the height of the flanging of the outer edge of the skirt edge is 6mm, so that the product is obtained.
As shown in fig. 2, the integrated forming mold includes four stations, a mold cavity formed by an upper mold and a lower mold at a first station a enables a magnesium aluminum alloy blank to be pressed into an inner cavity of the shield body and a reinforcing structure at the bottom of the inner cavity, and particularly, for a protruded mounting table, a high-frequency heating device is arranged on a lower mold, so that the mounting boss has a larger tensile property, the mounting boss does not crack after being stretched, and the mechanical property is good.
And the second station b is a trimming and punching station, a punch corresponding to the cutting center avoidance hole and the flange on the outer side of the front skirt edge is arranged on an upper die, a blanking hole is arranged on a lower die corresponding to the punch, and a prepressing plate is arranged on the upper die and used for pressing the blank on the lower die during punching.
The third station c is an edge cutting and punching station, an upper die punch corresponding to an edge avoiding opening of the brake caliper, a flange on the outer side of the rear skirt edge and a mounting hole is arranged on an upper die, a blanking opening is formed in the lower die corresponding to the upper die punch, the cut waste material falls out from the blanking opening, and a prepressing plate is arranged on the same upper die and used for pressing the blank on the lower die.
The fourth station d is a flanging and shaping station, a flanging punch is arranged at the center of the upper die and used for flanging the periphery of the center avoiding hole, a lower die flanging and forming block is arranged on the lower die along the outer side of the skirt edge 1, and the lower die sinks under the downward pressing action of the upper die, so that the flanging and forming block can be turned upwards relative to the skirt edge of the shield.
The technical solutions provided by the embodiments of the present invention are described in detail above, and the principles and embodiments of the present invention are explained herein by using specific examples, and the descriptions of the embodiments are only used to help understanding the principles of the embodiments of the present invention; meanwhile, for a person skilled in the art, according to the embodiments of the present invention, there may be variations in the specific implementation manners and application ranges, and in summary, the content of the present description should not be construed as a limitation to the present invention.
Claims (3)
1. A manufacturing method of a high-strength lightweight brake disc shield is characterized by comprising the following steps: comprises the following steps of (a) preparing a solution,
s1, selecting a blank material, and selecting a high-strength light magnesium aluminum alloy thin plate, wherein the magnesium aluminum alloy comprises, by weight, 2.6-3.6% of magnesium, 0.1-0.5% of zinc, 0.3-0.8% of manganese, 0.2-0.6% of chromium, 0.1-1.0% of copper, 0.15-0.5% of titanium, 0.2-0.6% of silicon, and the balance of aluminum;
s2, placing the blank into a first station of a four-station stamping die, locally heating the part, corresponding to the part where the mounting hole is formed, of the blank for 5-10 seconds through a heating device on the die before stretching, and stretching and forming the blank to form a middle concave cavity of the brake disc shield, a concave-convex shaped reinforcing structure, a skirt edge and a mounting boss;
s3, placing the blank stretched in the step S2 into a second station of a four-station stamping die, cutting edges and punching for the first time, cutting off an avoidance hole in the center of a brake disc shield and the outer side flash of a front skirt edge,
s4, placing the blank processed in the step S3 into a third station of a four-station stamping die, cutting edges and punching for the second time, and cutting off the brake caliper avoiding opening, the outer side flash of the rear skirt and the mounting hole;
and S5, placing the blank processed in the step S4 into a fourth station of a four-station stamping die, and performing flanging and shaping, wherein the flanging comprises flanging the periphery of the central avoidance hole and flanging the outer edge of the skirt edge, so as to obtain the product.
2. The method for manufacturing a high-strength lightweight brake disc shroud according to claim 1, characterized in that: in step S2, the drawing depth of the cavity with the skirt as a reference is 14.8mm, and the drawing depth of the mounting boss is 29.8 mm.
3. The method for manufacturing a high-strength lightweight brake disc shroud according to claim 1, characterized in that: in the step S5, the flanging height around the central avoiding hole is 5.2mm, and the flanging height of the outer edge of the skirt edge is 6 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210414160.5A CN114769455A (en) | 2022-04-20 | 2022-04-20 | Manufacturing method of high-strength lightweight brake disc shield |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210414160.5A CN114769455A (en) | 2022-04-20 | 2022-04-20 | Manufacturing method of high-strength lightweight brake disc shield |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114769455A true CN114769455A (en) | 2022-07-22 |
Family
ID=82430348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210414160.5A Pending CN114769455A (en) | 2022-04-20 | 2022-04-20 | Manufacturing method of high-strength lightweight brake disc shield |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114769455A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103182441A (en) * | 2011-12-30 | 2013-07-03 | 上海众大汽车配件有限公司 | Automobile lock reinforcing plate part die |
| CN203972619U (en) * | 2013-12-30 | 2014-12-03 | 上海众大汽车配件有限公司 | A kind of automobile reinforcing plate integrated mould |
| CN105537387A (en) * | 2015-12-15 | 2016-05-04 | 常熟市强盛冲压件有限公司 | Punching forming process for automobile covering part |
| CN106077270A (en) * | 2016-07-05 | 2016-11-09 | 上海众大汽车配件有限公司 | A kind of mould of front door of automobile waling part |
| CN205833965U (en) * | 2016-07-05 | 2016-12-28 | 上海众大汽车配件有限公司 | A kind of mould of automotive front reinforcing plate part |
| CN106270273A (en) * | 2015-05-15 | 2017-01-04 | 天津圣金特汽车配件有限公司 | A kind of processing method of Study on Vehicle Front Wheel House |
| CN205926806U (en) * | 2016-07-04 | 2017-02-08 | 上海众大汽车配件有限公司 | Mould of car rear seat backup pad assembly part |
| CN208303665U (en) * | 2018-06-22 | 2019-01-01 | 东莞市平台五金模具科技有限公司 | A kind of hardware drawing pattern tool |
-
2022
- 2022-04-20 CN CN202210414160.5A patent/CN114769455A/en active Pending
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| CN103182441A (en) * | 2011-12-30 | 2013-07-03 | 上海众大汽车配件有限公司 | Automobile lock reinforcing plate part die |
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| CN106270273A (en) * | 2015-05-15 | 2017-01-04 | 天津圣金特汽车配件有限公司 | A kind of processing method of Study on Vehicle Front Wheel House |
| CN105537387A (en) * | 2015-12-15 | 2016-05-04 | 常熟市强盛冲压件有限公司 | Punching forming process for automobile covering part |
| CN205926806U (en) * | 2016-07-04 | 2017-02-08 | 上海众大汽车配件有限公司 | Mould of car rear seat backup pad assembly part |
| CN106077270A (en) * | 2016-07-05 | 2016-11-09 | 上海众大汽车配件有限公司 | A kind of mould of front door of automobile waling part |
| CN205833965U (en) * | 2016-07-05 | 2016-12-28 | 上海众大汽车配件有限公司 | A kind of mould of automotive front reinforcing plate part |
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