CN108274191B - Method for processing radiator cover plate of high-power device - Google Patents
Method for processing radiator cover plate of high-power device Download PDFInfo
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- CN108274191B CN108274191B CN201711449715.5A CN201711449715A CN108274191B CN 108274191 B CN108274191 B CN 108274191B CN 201711449715 A CN201711449715 A CN 201711449715A CN 108274191 B CN108274191 B CN 108274191B
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- processing
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- radiator cover
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/26—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass heat exchangers or the like
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P2700/00—Indexing scheme relating to the articles being treated, e.g. manufactured, repaired, assembled, connected or other operations covered in the subgroups
- B23P2700/10—Heat sinks
Abstract
The invention discloses a processing method of a radiator cover plate of a high-power device, which comprises the steps of blanking → turning → positioning → milling → drilling → step hole processing → numerical milling → encapsulation and warehousing and the like. The material of the invention adopts high-strength hard aluminum, the strength is high, the processing manufacturability is good, the traditional clamping and positioning mode is changed during processing, the processing mode of changing the clamping and positioning mode is changed, the deformation problem in the processing process can be effectively solved by changing the processing technology and the clamping and positioning mode, the heat treatment and the polishing are not needed, the surface quality is good, and finally, after the conductive oxidation treatment is carried out, the radiator cover plate has certain protective performance, the material conductivity can be improved, and the electromagnetic shielding performance is enhanced. The radiator cover plate manufactured by the method has the characteristics of low cost, short processing period and extremely high production efficiency.
Description
Technical Field
The invention relates to the technical field of radiator processing, in particular to a method for processing a radiator cover plate of a high-power device.
Background
With the rapid development of electronic component technology, various miniaturized high-power electronic components are more and the application is more and more extensive. However, high-power electronic components generate large heat, and the normal operation of the electronic components can be ensured only by effectively dissipating the heat, and particularly, the electronic components are used in a closed space and are paid more attention. At present, in a heat dissipation mode of a high-power device, the device can be effectively dissipated through air flowing in a non-closed space (such as a case with ventilation holes), but due to the fact that air does not circulate in a closed space (such as a case without ventilation holes, a cavity and the like), when air in the closed space is saturated thermally, a radiator can not effectively dissipate heat of the device, and therefore working abnormity is caused.
At present, the mechanical processing of the radiator is mainly formed by milling and processing in a mode of detaching and replacing a clamping apparatus by using the traditional clamping and positioning, the deformation of parts is large, the surface quality is not high, the problems of deformation and surface quality are solved by increasing heat treatment and polishing procedures, and the cost and the processing period are increased.
Disclosure of Invention
In order to solve the defects, the invention provides a processing method of a radiator cover plate of a high-power device, which changes the traditional processing mode of clamping and positioning by disassembling and replacing a clamp and can effectively solve the deformation problem in the processing process.
A processing method of a high-power device radiator cover plate comprises the following steps:
(1) blanking: extruding the raw material into a disc-shaped bar material with the diameter of 218mm and the thickness of 28mm, and removing burrs and fins through a metal plate after extrusion treatment;
(2) turning: turning an outer circle to ensure that the diameter of the outer circle is phi 215 mm; flattening the end face, cutting off, turning around the flattened end face, and ensuring that the thickness dimension is 18 mm; and the edge is blunted;
(3) positioning: marking a line on the surface of the disc-shaped piece to determine the positions of two groups of mounting holes A and B, wherein the number of the mounting holes A is 8, the mounting holes A are uniformly distributed at the outer edge of the disc-shaped piece, the distance from the circle center of each mounting hole A to the circle center of the disc-shaped piece is 102.5mm, the number of the mounting holes B is 4, the mounting holes B are arranged in a cross shape, and the distance from the circle center of each mounting hole B to the circle center of the disc-shaped piece is 72.;
(4) milling: aligning the center of the excircle, and clamping the part by using a clamp while avoiding the positions of the mounting hole A and the mounting hole B; using a center drill to point center holes at the positions of 8 mounting holes A and 4 mounting holes B;
(5) drilling: drilling a through hole with the diameter of 3.4mm at the position of the point center hole by using a standard straight shank twist drill;
(6) step hole machining: machining a phi 8 step hole at the top end of each central hole by using a flat-bottom straight-handle twist drill, and then blunting two ends of the hole opening;
(7) d, milling: mounting a base plate → processing a hole → fastening a disc-shaped part → processing numerical control milling;
(8) and (4) performing reverse dot oxidation treatment on the radiator cover plate primary part to obtain Ct.
In the step (1), the raw material is 2A12-T4 high-strength hard aluminum alloy.
The specification of the center drill in the step (4) is A1/3.15, and the pointing depth of the center hole is 1 mm.
The standard of the standard straight shank twist drill in the step (5) is phi 3.4mm,
the specification of the flat-bottom straight-handle twist drill in the step (6) is phi 8mm, the size of the step hole can accommodate the screw head of an M3 socket head cap screw with a certain gap, and the depth of the step hole is 14mm which is the thickness of the boss part of the radiator cover plate.
The specific method for number milling in the step (7) comprises the following steps:
(701) mounting a base plate on a three-axis vertical machining center table, and processing the upper surface of the base plate to be flat;
(702) hole machining: firstly, dotting 12 central holes which are one by one corresponding to the mounting hole A and the mounting hole B on the base plate by using a central drill, then drilling M3 threaded holes at the positions of the central holes which are just dotted by using a standard straight shank twist drill, wherein the diameter of each threaded hole is phi 2.5mm, finally tapping 12M 3 threaded holes and removing burrs;
(703) fastening the disc-shaped piece: placing the disc-shaped part on a base plate, and fastening through M3 threaded holes in the base plate corresponding to the mounting holes A and B on the disc-shaped part by using 12M 3 socket head cap screws;
(704) and (3) numerical control milling: firstly, processing the upper part of the disc-shaped piece by using a straight shank end mill to expose the boss part of the radiator, then processing a plurality of radiating grooves arranged at intervals on the boss part by using a saw blade mill, and finally removing the lower part and removing burrs to obtain the primary piece of the radiator cover plate.
The backing plate in the step (701) is an aluminum backing plate with the thickness of 20 mm.
In the step (702), the specification of the center drill is A1/3.15, the depth of the center hole is 1mm, the specification of the standard straight shank twist drill is phi 2.5mm, and the depth of the threaded hole is 10 mm.
In the step (704), the specification of the straight shank end mill is phi 8mm, and the specification of the saw blade end mill is 4 mm.
The invention has the beneficial effects that:
the material of the invention adopts high-strength hard aluminum, the strength is high, the processing manufacturability is good, the traditional clamping and positioning mode is changed during processing, the processing mode of changing the clamping and positioning mode is changed, the deformation problem in the processing process can be effectively solved by changing the processing technology and the clamping and positioning mode, the heat treatment and the polishing are not needed, the surface quality is good, and finally, after the conductive oxidation treatment is carried out, the radiator cover plate has certain protective performance, the material conductivity can be improved, and the electromagnetic shielding performance is enhanced. The radiator cover plate manufactured by the method has the characteristics of low cost, short processing period and extremely high production efficiency.
Detailed Description
The technical solution of the present invention is further explained below, but the scope of protection claimed is not limited to the above;
the processing method of the radiator cover plate of the high-power device comprises the following specific steps:
1. extruding the 2A12-T4 high-strength duralumin alloy into a disc-shaped bar material with the diameter of 218mm and the thickness of 28mm, and removing flash and burrs through a metal plate after extrusion treatment;
2. turning an outer circle to ensure that the diameter of the outer circle is phi 215 mm; flattening the end face, cutting off, turning around the flattened end face, and ensuring that the thickness dimension is 18 mm; and the edge is blunted;
3. marking a line on the surface of the disc-shaped piece to determine the positions of two groups of mounting holes A and B, wherein the number of the mounting holes A is 8, the mounting holes A are uniformly distributed at the outer edge of the disc-shaped piece, the distance from the circle center of each mounting hole A to the circle center of the disc-shaped piece is 102.5mm, the number of the mounting holes B is 4, the mounting holes B are arranged in a cross shape, and the distance from the circle center of each mounting hole B to the circle center of the disc-shaped piece is 72.;
4. aligning the center of the excircle, and clamping the part by using a clamp while avoiding the positions of the mounting hole A and the mounting hole B; drilling a center hole at the positions of 8 mounting holes A and 4 mounting holes B by using a center with the specification of A1/3.15, and pointing the center hole to the depth of 1 mm;
5. drilling a through hole with the diameter of 3.4mm at the position of the point center hole by using a standard straight shank twist drill with the diameter of 3.4 mm;
6. machining a phi 8 step hole at the top end of each central hole by using a flat-bottomed straight-handle twist drill with the specification of phi 8mm, wherein the step hole can accommodate the screw head of an M3 socket head cap screw and has a certain gap, the step hole depth is 14mm which is the thickness of a lug boss part of a cover plate of the radiator, and then blunting two ends of the hole opening;
7. mounting an aluminum base plate with the thickness of 20mm on a triaxial vertical machining center table, and machining the upper surface of the base plate to be flat; drilling 12 center holes which correspond to the mounting hole A and the mounting hole B one by one on the base plate by using a center drill with the specification of A1/3.15, wherein the depth of the center hole is 1mm, and drilling an M3 threaded hole at the position of the center hole which is just drilled by using a standard straight shank twist drill with the specification of phi 2.5mm, wherein the diameter of the threaded hole is phi 2.5mm, and the depth of the threaded hole is 10 mm; tapping 12M 3 threaded holes and removing burrs; placing the disc-shaped part on a base plate, and fastening through M3 threaded holes in the base plate corresponding to the mounting holes A and B on the disc-shaped part by using 12M 3 socket head cap screws; and then, machining the upper part of the disc-shaped part by using a phi 8 straight shank end mill to expose the boss part of the radiator, machining a plurality of radiating grooves arranged at intervals on the boss part by using a 4mm saw blade milling cutter, and finally removing the lower part and removing burrs to obtain the primary part of the radiator cover plate.
8. And (4) performing reverse dot oxidation treatment on the radiator cover plate primary part to obtain Ct.
The above-mentioned embodiment is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and any variations, modifications, or equivalent substitutions made on the technical solutions of the present invention should fall within the scope of the present invention.
Claims (8)
1. A processing method of a radiator cover plate of a high-power device is characterized by comprising the following steps: the method comprises the following steps:
(1) blanking: extruding the raw material into a disc-shaped bar material with the diameter of 218mm and the thickness of 28mm, and removing burrs and fins after extrusion treatment;
(2) turning: turning an outer circle to ensure that the diameter of the outer circle is phi 215 mm; flattening the end face, cutting off, turning around the flattened end face, and ensuring that the thickness dimension is 18 mm; and the edge is blunted;
(3) positioning: marking a line on the surface of the disc-shaped piece to determine the positions of two groups of mounting holes A and B, wherein the number of the mounting holes A is 8, the mounting holes A are uniformly distributed at the outer edge of the disc-shaped piece, the distance from the circle center of each mounting hole A to the circle center of the disc-shaped piece is 102.5mm, the number of the mounting holes B is 4, the mounting holes B are arranged in a cross shape, and the distance from the circle center of each mounting hole B to the circle center of the disc-shaped piece is 72.;
(4) milling: aligning the center of the excircle, avoiding the positions of the mounting hole A and the mounting hole B, clamping the part by using a fixture, and pointing a center hole at the positions of 8 mounting holes A and 4 mounting holes B by using a center drill;
(5) drilling: drilling a through hole with the diameter of 3.4mm at the position of the point center hole by using a standard straight shank twist drill;
(6) step hole machining: processing a step hole with the diameter of 8mm at the top end of each central hole by using a flat-bottom straight-handle twist drill, and then blunting two ends of the hole opening;
(7) d, milling: mounting a base plate → processing a hole → fastening a disc-shaped part → processing numerical control milling;
(8) packaging and warehousing: conducting conductive oxidation treatment on the radiator cover plate primary part, and then packaging and warehousing;
the specific method for number milling in the step (7) comprises the following steps:
(701) mounting a base plate on a three-axis vertical machining center table, and processing the upper surface of the base plate to be flat;
(702) hole machining: firstly, dotting 12 central holes which are one by one corresponding to the mounting hole A and the mounting hole B on the base plate by using a central drill, then drilling M3 threaded holes at the positions of the central holes which are just dotted by using a standard straight shank twist drill, wherein the diameter of each threaded hole is phi 2.5mm, finally tapping 12M 3 threaded holes and removing burrs;
(703) fastening the disc-shaped piece: placing the disc-shaped part on a base plate, and fastening through M3 threaded holes in the base plate corresponding to the mounting holes A and B on the disc-shaped part by using 12M 3 socket head cap screws;
(704) and (3) numerical control milling: firstly, processing the upper part of the disc-shaped piece by using a straight shank end mill to expose the boss part of the radiator, then processing a plurality of radiating grooves arranged at intervals on the boss part by using a saw blade mill, and finally taking down the part to remove burrs to obtain the initial piece of the radiator cover plate.
2. The method for processing the radiator cover plate of the high power device according to claim 1, wherein: in the step (1), the raw material is 2A12-T4 high-strength hard aluminum alloy.
3. The method for processing the radiator cover plate of the high power device according to claim 1, wherein: the specification of the center drill in the step (4) is A1/3.15, and the pointing depth of the center hole is 1 mm.
4. The method for processing the radiator cover plate of the high power device according to claim 1, wherein: the standard of the standard straight shank twist drill in the step (5) is phi 3.4 mm.
5. The method for processing the radiator cover plate of the high power device according to claim 1, wherein: the specification of the flat-bottom straight-handle twist drill in the step (6) is phi 8mm, the size of the step hole can accommodate the screw head of an M3 socket head cap screw with a certain gap, and the depth of the step hole is 14mm which is the thickness of the boss part of the radiator cover plate.
6. The method for processing the radiator cover plate of the high power device according to claim 1, wherein: the backing plate in the step (701) is an aluminum backing plate with the thickness of 20 mm.
7. The method for processing the radiator cover plate of the high power device according to claim 1, wherein: in the step (702), the specification of the center drill is A1/3.15, the depth of the center hole is 1mm, the specification of the standard straight shank twist drill is phi 2.5mm, and the depth of the threaded hole is 10 mm.
8. The method for processing the radiator cover plate of the high power device according to claim 1, wherein: in the step (704), the specification of the straight shank end mill is phi 8mm, and the specification of the saw blade end mill is 4 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711449715.5A CN108274191B (en) | 2017-12-27 | 2017-12-27 | Method for processing radiator cover plate of high-power device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711449715.5A CN108274191B (en) | 2017-12-27 | 2017-12-27 | Method for processing radiator cover plate of high-power device |
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| CN108274191A CN108274191A (en) | 2018-07-13 |
| CN108274191B true CN108274191B (en) | 2020-08-07 |
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Citations (6)
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|---|---|---|---|---|
| CN102974973A (en) * | 2012-08-29 | 2013-03-20 | 苏州市意可机电有限公司 | Processing technology of flange plate |
| EP2581146A1 (en) * | 2011-10-14 | 2013-04-17 | Bell Helicopter Textron Inc. | System and method of manufacturing a structure |
| CN103182454A (en) * | 2013-04-08 | 2013-07-03 | 程显东 | Processing technology of blanking punch |
| CN104439958A (en) * | 2014-11-19 | 2015-03-25 | 江苏恒义汽配制造有限公司 | Automobile cylinder cover machining method |
| CN104646947A (en) * | 2014-12-11 | 2015-05-27 | 牛高 | Machining method of high-speed turntable |
| CN105537879A (en) * | 2016-01-27 | 2016-05-04 | 西安北方光电科技防务有限公司 | Machining method used for thin-wall cavity type magnesium-lithium alloy part |
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2017
- 2017-12-27 CN CN201711449715.5A patent/CN108274191B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2581146A1 (en) * | 2011-10-14 | 2013-04-17 | Bell Helicopter Textron Inc. | System and method of manufacturing a structure |
| CN102974973A (en) * | 2012-08-29 | 2013-03-20 | 苏州市意可机电有限公司 | Processing technology of flange plate |
| CN103182454A (en) * | 2013-04-08 | 2013-07-03 | 程显东 | Processing technology of blanking punch |
| CN104439958A (en) * | 2014-11-19 | 2015-03-25 | 江苏恒义汽配制造有限公司 | Automobile cylinder cover machining method |
| CN104646947A (en) * | 2014-12-11 | 2015-05-27 | 牛高 | Machining method of high-speed turntable |
| CN105537879A (en) * | 2016-01-27 | 2016-05-04 | 西安北方光电科技防务有限公司 | Machining method used for thin-wall cavity type magnesium-lithium alloy part |
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