CN102091965A - Method and device for processing aluminum-based or aluminum alloy-based printed circuit board - Google Patents
Method and device for processing aluminum-based or aluminum alloy-based printed circuit board Download PDFInfo
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- CN102091965A CN102091965A CN2010105865673A CN201010586567A CN102091965A CN 102091965 A CN102091965 A CN 102091965A CN 2010105865673 A CN2010105865673 A CN 2010105865673A CN 201010586567 A CN201010586567 A CN 201010586567A CN 102091965 A CN102091965 A CN 102091965A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The invention provides a method and device for processing an aluminum-based or aluminum alloy-based printed circuit board. The method for processing the aluminum-based or aluminum alloy-based printed circuit board provided by the invention comprises the following step: when the printed circuit board is processed, cooling processing tools by utilizing a cooling liquid containing volatile substances and adhesives. By utilizing the method for processing the aluminum-based or aluminum alloy-based printed circuit board, the milling shaft of a milling machine for the aluminum-based or aluminum alloy-based printed circuit board can be effectively cooled without reducing the production efficiency, and the quality of the obtained aluminum-based or aluminum alloy-based printed circuit board can be improved.
Description
Technical field
The present invention relates to the making of a kind of single face and multiple layer metal base printed wiring board, be specifically related to a kind of aluminium base or Al-alloy based printed wiring board milling machine milling spindle cool-down method and corresponding aluminium base or Al-alloy based printed wiring board milling machine milling spindle heat sink, the invention still further relates to the processing method and the processing unit (plant) of aluminium base or Al-alloy based printed wiring board in addition.
Background technology
Along with the develop rapidly of electronics industry and the update of electronic technology, the volume of electronic product is more and more littler, and power density is increasing, how to seek to dispel the heat and the best approach of structural design, just becomes a great challenge of current electronics industry design.Aluminium base solves one of effective means of heat dissipation problem beyond doubt.
Compare with traditional printed wiring board, aluminium base has series of advantages such as good thermal conductivity, electrical insulation properties, yet but there is certain difficulty in aluminium base in molding process, and traditional gong cutter can't be processed, and must use aluminium base special-purpose gong cutter.Specifically, traditional gong cutter is a wolfram steel material helical tooth serration gong cutter, and its number of teeth is many, and cutter tooth intensity is not very high, and chip space is little, is fit to the soft traditional PCB plate of processing quality.When using traditional gong cutter to process aluminium base, under identical cutting parameter,, add chip removal in man-hour difficulty because the aluminium base quality is hard, the gong cutter breaks easily and lost efficacy.And the special-purpose gong cutter of aluminium base is the helical tooth bastard gong cutter of wolfram steel material, and its number of teeth is few, cutter tooth intensity height, chip space is big, during the processing aluminium base chip removal good, the breaking rate is low.
And then, because the gong cutter rotates at a high speed when processing and forming and produce a large amount of heats with the aluminium sheet friction, cutter and substrate temperature are sharply raise.Under the situation of not taking any auxiliary temperature-reducing measure, following three problems can occur: first problem is exactly because the milling spindle temperature is too high, can cause stuck shutdown or directly burn out milling spindle; Second problem is exactly that the too high aluminum metal that causes of temperature is melted the formation burr, influences product appearance; The 3rd problem is exactly because the thawing of aluminum metal, and the gong cutter can't normally be discharged chip, causes breaking.
In the prior art, when producing, often avoid high temperature, perhaps change molding mode, utilize the mould punch forming to solve this difficult problem by the rotating speed and the feeding speed that reduce the gong cutter.But these methods are not to have reduced production efficiency, have improved production cost exactly.
And also there is a comparatively serious problem in existing these aluminium base or Al-alloy based printed wiring board milling machine milling spindle cool-down methods, and that is exactly that the periphery of the aluminium base or Al-alloy based printed wiring board produced still can exist more burr.As shown in Figure 1, Fig. 1 schematically shows the aluminium base or Al-alloy based printed wiring board according to the aluminium base or Al-alloy based printed wiring board milling machine milling spindle cool-down method acquisition of prior art.
Therefore, the auxiliary temperature-reducing measure of aluminium base in molding process seems particularly important.Thereby, wish to propose a kind of method of in molding process, aluminium base or Al-alloy based printed wiring board milling machine milling spindle being lowered the temperature, it not only can be lowered the temperature to aluminium base or Al-alloy based printed wiring board milling machine milling spindle effectively need not to reduce under the situation of production efficiency, and can improve the quality of the aluminium base or Al-alloy based printed wiring board that is obtained.
Summary of the invention
An object of the present invention is to provide a kind of method of in molding process, aluminium base or Al-alloy based printed wiring board milling machine milling spindle being lowered the temperature, it not only can be lowered the temperature to aluminium base or Al-alloy based printed wiring board milling machine milling spindle effectively need not to reduce under the situation of production efficiency, and can improve the quality of the aluminium base or Al-alloy based printed wiring board that is obtained.
According to a first aspect of the invention, provide a kind of processing method of aluminium base or Al-alloy based printed wiring board, having comprised: described printed wiring board is being added man-hour, machining tool is being lowered the temperature by the cooling liquid that comprises volatile substances and bonding agent.
Preferably, described cooling liquid is ethanol water, and wherein the volume ratio of ethanol and water is 1: 1 to 3: 1, is preferably 1.5: 1 to 2.5: 1, for example is 2: 1.
The cooling liquid of Cai Yonging is the mixed solution of alcohol and water in embodiments of the present invention, alcohol plays the effect of cooling, and water can prevent effectively that chip from dispersing in air, and therefore, alcohol and water must mix in certain proportion just can open the double dustproof effect of cooling.Wherein, when the volume ratio of alcohol and water is 1: 1 between 3: 1 the time, can play the dustproof effect of effective cooling.When the volume ratio of absolute ethyl alcohol and water is 2: 1, best results.Wherein, water promptly can be used as the bonding agent that is used to avoid the broken end of processing such as the aluminium bits; It will be appreciated by persons skilled in the art that and to adopt other liquid flux that can dissolve ethanol as bonding agent.
The present invention is directed in the aluminium base forming process problems such as the too high milling spindle that causes of Yin Wendu stuckly burns out, burr, breaking, the characteristic of utilizing alcohol non-environmental-pollution, high volatility can take away heat is rapidly effectively lowered the temperature to the milling spindle that mills machine, thereby under the situation that does not reduce production efficiency, eliminate burr, and avoided the stuck problem such as burn out of the milling spindle that causes owing to high temperature.Because alcohol has advantages such as environmental protection, cooling, inexpensive, nonirritant, safety, so employing alcohol is quite preferred.
Preferably, in the processing method of above-mentioned aluminium base or Al-alloy based printed wiring board, described machining tool is the milling machine milling spindle.Certainly, it will be understood by those skilled in the art that, the present invention is except " gong cutter ", can lower the temperature to cause the installations and facilities of high temperature because of at a high speed rotation or cutting equally, for example such as milling cutter since cutting cause the instrument of high temperature or such as the milling machine milling spindle since at a high speed rotation cause the instrument etc. of high temperature.Hence one can see that, and the present invention is particularly suitable for causing that because of at a high speed rotation or cutting the machining tool of high temperature lowers the temperature.
Preferably, in the processing method of above-mentioned aluminium base or Al-alloy based printed wiring board, described cooling liquid is directed on the described machining tool by the mozzle of plastics or metal.The mozzle of employing plastics or metal makes the present invention become simple more and is easy to realize.
Preferably, in the processing method of above-mentioned aluminium base or Al-alloy based printed wiring board, described mozzle is equipped with flow control apparatus, is used to control flow velocity or pressure and/or jet velocity or the direction and/or the temperature of described cooling liquid.Flow velocity or pressure and/or jet velocity or direction and/or temperature by controlling described cooling liquid make the present invention can accurately control cooling degree and cooling-down effect, thereby improve machining accuracy.
Preferably, in the processing method of above-mentioned aluminium base or Al-alloy based printed wiring board, method also comprises: reduce the process velocity of described machining tool, for example reduce the rotating speed and/or the feed speed of milling spindle.The process velocity that reduces described machining tool makes the present invention have flexibility more, can be adapted to various processed and applied more widely.
Preferably, in the processing method of above-mentioned aluminium base or Al-alloy based printed wiring board, method also comprises: detect the temperature of described machining tool in real time or periodically, be used for temperature and/or cooling zone according to machining tool: flow velocity or pressure and/or jet velocity or the direction and/or the temperature of regulating described cooling liquid; And/or regulate the process velocity of described machining tool; And/or the volume ratio of regulating volatile substances and bonding agent in the described cooling liquid.Equally,, make the present invention can accurately control cooling degree and cooling-down effect, thereby improve machining accuracy by above-mentioned regulating step.
Preferably, in the processing method of above-mentioned aluminium base or Al-alloy based printed wiring board, method also comprises: form negative pressure to remove by the described cooling gas that the back forms that evaporates.Thus, can remove gas to prevent the gases affect machining accuracy.
According to a second aspect of the invention, provide a kind of processing unit (plant) of aluminium base or Al-alloy based printed wiring board, be used to realize method according to first aspect present invention.
The processing that it will be appreciated by persons skilled in the art that aluminium base or Al-alloy based printed wiring board according to a second aspect of the invention can realize technique effect and the advantage that the processing method of aluminium base or Al-alloy based printed wiring board according to a first aspect of the invention can realize equally.
Preferably, in the processing unit (plant) of above-mentioned aluminium base or Al-alloy based printed wiring board, also comprise reservoir, be used to store described cooling liquid, preferably described reservoir can make the temperature of cooling liquid remain on below the predetermined temperature.The reservoir that stores described cooling liquid can make the temperature of cooling liquid remain on below the predetermined temperature, makes the present invention can accurately control cooling degree and cooling-down effect equally, thereby improves machining accuracy.
Other features and advantages of the present invention provide in explanation subsequently, partly can be apparent from the description, and maybe can find out from enforcement of the present invention.Purpose of the present invention and other advantage can be understood, obtain from the scheme that following explanation and accompanying drawing provide especially.
Description of drawings
The accompanying drawing of forming the part of this specification helps further to understand the present invention, and these accompanying drawings have been resolved embodiments of the invention, and can be used for illustrating principle of the present invention with specification.In the accompanying drawing:
Fig. 1 schematically shows the aluminium base or Al-alloy based printed wiring board according to the aluminium base or Al-alloy based printed wiring board milling machine milling spindle cool-down method acquisition of prior art.
Fig. 2 schematically shows the flow chart according to the aluminium base or Al-alloy based printed wiring board milling machine milling spindle cool-down method of the embodiment of the invention.
Fig. 3 schematically shows the aluminium base or Al-alloy based printed wiring board according to the aluminium base or Al-alloy based printed wiring board milling machine milling spindle cool-down method acquisition of the embodiment of the invention.
Fig. 4 schematically shows a flow chart of aluminium base or Al-alloy based according to another embodiment of the present invention printed wiring board milling machine milling spindle cool-down method.
Notice that accompanying drawing is used to illustrate the present invention, and unrestricted the present invention.And,, may some element among the figure be amplified in order to highlight.
The specific embodiment
The invention provides a kind of processing method of aluminium base or Al-alloy based printed wiring board, it is characterized in that, comprising: described printed wiring board is being added man-hour, machining tool is being lowered the temperature by the cooling liquid that comprises volatile substances and bonding agent.Like this, can lower the temperature for machining tool on the one hand, and can chip be bonded together by bonding agent on the other hand (for example forming aluminium mud) disperses preventing by the evaporation heat absorption of volatile substances.
Preferably, in various embodiments of the present invention, described cooling liquid is ethanol water, and wherein the volume ratio of ethanol and water is 1: 1 to 3: 1, is preferably 1.5: 1 to 2.5: 1, for example is 2: 1.At this, ethanol is as volatile substances, and water is as bonding agent.
But, in other embodiments, also can use other material as volatile substances and bonding agent.For example, can use the organic matter (alcohol, ether, ketone etc.) of low carbon number (for example carbon number is 1-4) or inorganic matter as volatile substances, for example, propyl alcohol, or liquid nitrogen.For another example, can use non-water bonding agent, the organic liquid that for example has suitable viscosity.
Preferably, in various embodiments of the present invention, described machining tool comprises gong cutter or milling cutter.In other embodiments, machining tool also can be lathe tool, grinding tool etc.
Preferably, in various embodiments of the present invention, described cooling liquid is directed on the described machining tool by the mozzle of plastics or metal.
Preferably, in various embodiments of the present invention, described mozzle is equipped with flow control apparatus, is used to control flow velocity or pressure and/or jet velocity or the direction and/or the temperature of described cooling liquid.Like this, can regulate cooling liquid according to the cooling needs.
Preferably, in various embodiments of the present invention, also comprise: reduce the process velocity of described machining tool, for example reduce the rotating speed and/or the feed speed of milling spindle.
Preferably, in various embodiments of the present invention, also comprise: detect the temperature of described machining tool in real time or periodically, be used for temperature and/or cooling zone according to machining tool:
Regulate flow velocity or pressure and/or jet velocity or the direction and/or the temperature of described cooling liquid; And/or
Regulate the process velocity of described machining tool; And/or
Regulate the volume ratio of volatile substances and bonding agent in the described cooling liquid.
Though can preparing in advance and be supplied, cooling liquid is used for lowering the temperature.But in other embodiments, volatile substances and bonding agent can be supplied respectively and be mixed into cooling liquid in real time, are beneficial to regulate in real time as required the volume ratio of volatile substances and bonding agent.
Preferably, in various embodiments of the present invention, form the gas that forms after negative pressure is evaporated by described cooling with removal.Though cooling liquid is harmless to human body and environment preferably, but, in order to ensure the safety of working environment, can in time volatilization gas be removed, for example remove by forming negative pressure (vacuum).
The present invention also provides a kind of processing unit (plant) of aluminium base or Al-alloy based printed wiring board, is used for realizing each described method of claim as described above.
Preferably, in various embodiments of the present invention, described processing unit (plant) comprises reservoir, is used to store described cooling liquid, and preferably described reservoir can make the temperature of cooling liquid remain on below the predetermined temperature.
In order to make content of the present invention clear and understandable more, content of the present invention is described in detail below in conjunction with specific embodiments and the drawings.
With reference now to accompanying drawing, describe aluminium base or Al-alloy based printed wiring board milling machine milling spindle cool-down method according to the embodiment of the invention, Fig. 2 schematically shows the flow chart according to the aluminium base or Al-alloy based printed wiring board milling machine milling spindle cool-down method of the embodiment of the invention.
Processing unit (plant) according to the aluminium base or Al-alloy based printed wiring board of the embodiment of the invention can comprise a mozzle, be used for described printed wiring board is being added man-hour, machining tool (being the milling machine milling spindle in the present embodiment) lowered the temperature by the cooling liquid (being absolute ethyl alcohol and water alcoholic solution in the present embodiment) that comprises volatile substances with volume ratio dilution in 2: 1.And mozzle also can comprise flow control apparatus, is used to control the flow velocity and/or the flow direction of cooling liquid.
The concrete steps of the method according to this invention are described now.At first, in step S1, dilute at 2: 1 with volume ratio, form alcoholic solution as cooling liquid by absolute ethyl alcohol and water.
In step S2, mixed solution is imported holding tank, wherein holding tank communicates with mozzle.Holding tank as reservoir is used to store described cooling liquid, and preferably holding tank can make the temperature of cooling liquid remain on below the predetermined temperature.
In step S3, open process equipment and begin processing.
In step S4, open the flow control apparatus (this flow control apparatus can be used for controlling the flow velocity and/or the flow direction of cooling liquid) of the mozzle that communicates with holding tank, in the milling spindle running, allow the alcohol that diluted flow on the gong cutter thus, so just can reach cool effect.
And in a preferred embodiment of the invention, processing unit (plant) also comprises a controller, is used for regulating flow control apparatus according to the size of cooling area size and/or target temperature.In addition, in a preferred embodiment of the invention, processing unit (plant) also comprises the device of the gas that forms after being used to form negative pressure is evaporated by described cooling with removal.Thus, can remove gas to prevent the gases affect machining accuracy.
Fig. 3 schematically shows the aluminium base or Al-alloy based printed wiring board according to the aluminium base or Al-alloy based printed wiring board milling machine milling spindle cool-down method acquisition of the embodiment of the invention.By Fig. 3 and Fig. 1 are advanced more as can be known, greatly reduced burr according to the aluminium base or Al-alloy based printed wiring board milling machine milling spindle cool-down method of inventive embodiments, improved the quality of aluminium base or Al-alloy based printed wiring board.
Can make further improvement to aluminium base or Al-alloy based printed wiring board milling machine milling spindle cool-down method shown in Figure 3, for example can reduce the process velocity of machining tool, for example reduce the rotating speed and/or the feed speed of milling spindle.Particularly, as shown in Figure 4, Fig. 4 schematically shows a flow chart of aluminium base or Al-alloy based according to another embodiment of the present invention printed wiring board milling machine milling spindle cool-down method.
In Fig. 4, step S1 is identical to step S4 to step S4 and step S1 shown in Figure 1, but has increased step S5, is used for reducing milling spindle rotating speed 40% on normal operation parameter basis, and feed speed reduces by 40% simultaneously; In fact, not necessarily with rotating speed reduce to be restricted to 40%, but can be other ratio.Like this, can further improve the effect that reduces temperature and eliminate burr by underspeeding.
The present invention also comprises a kind of aluminium base or Al-alloy based printed wiring board milling machine milling spindle heat sink of realizing said method.That is to say that the present invention transforms aluminium base or Al-alloy based printed wiring board milling machine milling spindle, promptly increases a mozzle.And mozzle can imbed the groove the inside that carries on the milling spindle effectively.And the present invention is fit to the milling machine of any kind because transform not can damage equipment on any accessory.
In the present invention, alcohol can help the cooling of gong cutter by a thin plastics mozzle water conservancy diversion to the gong cutter; Transformation very economical to milling machine (process equipment) is saved, and is simultaneously workable.
Preferably, the flow of liquid can be regulated in the plastics mozzle, thereby can control cooling-down effect more accurately.A preferred exemplary of plastics mozzle is the woven hose that hospital uses, especially medical infusion lines, and flow is little, and is from belt switch (being a concrete example of flow control apparatus), with low cost.
In some specific embodiment, the flow control apparatus that is disposed can be in real time or is periodically detected the temperature of described machining tool, is used for temperature and/or cooling zone according to machining tool: flow velocity or pressure and/or jet velocity or the direction and/or the temperature of regulating described cooling liquid; And/or regulate the process velocity of described machining tool; And/or the volume ratio of regulating volatile substances and bonding agent in the described cooling liquid.
Certainly, it will be appreciated by persons skilled in the art that the mozzle that also can adopt other material outside the plastics mozzle, for example the metal mozzle.
Absolute alcohol volatilization under the situation of rotation of milling machine gong knife up speed and exhausting is faster, the aluminum metal chip can disperse in milling machine table face and air like this, after the water of adding 1/3, the volatilization of water there is not the alcohol piece, under the effect of water, the chip of aluminum metal converges to and forms aluminium mud together, and chip just can not disperse to work top and in the air like this.
But, it will be understood by those skilled in the art that, it only is a kind of preferred implementation that absolute ethyl alcohol and water carry out diluted mixture with volume ratio at 2: 1, in fact, can realize that chip just can not disperse to work top and under the situation of airborne effect, can suitably adjust this volumetric mixture ratio.In fact, alcohol plays the effect of cooling, and water can prevent effectively that chip from dispersing in air, and therefore, alcohol and water must mix in certain proportion just can open the double dustproof effect of cooling.Just, when the volume ratio of alcohol and water is 1: 1 between 3: 1 the time, can play the effective cooling effect of preventing dust.When the volume ratio of absolute ethyl alcohol and water is 2: 1, best results.
In addition, for the raw material of aluminium base or Al-alloy based printed wiring board, do not having often to need to adopt the aluminium alloy with high-termal conductivity as substrate before the effective cool-down method, this has not only reduced production efficiency, and has increased cost.Generally speaking, the cost of aluminium alloy is 2 times of fine aluminium basically.And after adopting, can process the sheet material of any fine aluminium or aluminium alloy according to alcohol cool-down method of the present invention.Except that the Al-alloy based requirement of special industry, other can replace with the fine aluminium base fully, can save the cost of raw material more than 50% thus.
And, being also advantageous in that of alcohol, alcohol is different from other organic matters, though have volatility, but it is not poisoned the inspirator, because the vacuum cleaner pipeline is attached to the chip that produces when gong cutter gong plate is drawn in the milling spindle lower end always, alcohol has been sucked away in the lump, so milling machine operating personnel's health is ensured simultaneously.
Therefore, use radiating and cooling method described in the invention, can improve the product appearance quality, avoid damage equipment, reduce production costs, enhance productivity, and safe and reliablely do not have an environmental pollution.
It will be apparent to those skilled in the art that and to carry out various changes and distortion to the present invention without departing from the scope of the invention.It will be appreciated by persons skilled in the art that described embodiment only is used to illustrate the present invention, rather than restriction the present invention; The present invention is not limited to described embodiment, but only is defined by the following claims.
Claims (10)
1. the processing method of an aluminium base or Al-alloy based printed wiring board is characterized in that, comprising: described printed wiring board is being added man-hour, by the cooling liquid that comprises volatile substances and bonding agent machining tool is being lowered the temperature.
2. processing method according to claim 1 is characterized in that, wherein said cooling liquid is ethanol water, and wherein the volume ratio of ethanol and water is 1: 1 to 3: 1, is preferably 1.5: 1 to 2.5: 1, for example is 2: 1.
3. processing method according to claim 1 and 2 is characterized in that wherein said machining tool comprises the gong cutter.
4. according to each described processing method in the aforementioned claim, it is characterized in that wherein said cooling liquid is directed on the described machining tool by the mozzle of plastics or metal.
5. according to each described processing method in the aforementioned claim, it is characterized in that described mozzle is equipped with flow control apparatus, be used to control flow velocity or pressure and/or jet velocity or the direction and/or the temperature of described cooling liquid.
6. according to each described processing method in the aforementioned claim, it is characterized in that, also comprise: reduce the process velocity of described machining tool, for example reduce the rotating speed and/or the feed speed of milling spindle.
7. according to each described processing method in the aforementioned claim, it is characterized in that, also comprise: detect the temperature of described machining tool in real time or periodically, be used for temperature and/or cooling zone according to machining tool:
Regulate flow velocity or pressure and/or jet velocity or the direction and/or the temperature of described cooling liquid; And/or
Regulate the process velocity of described machining tool; And/or
Regulate the volume ratio of volatile substances and bonding agent in the described cooling liquid.
8. according to each described processing method in the aforementioned claim, it is characterized in that, form the gas that forms after negative pressure is evaporated by described cooling with removal.
9. the processing unit (plant) of an aluminium base or Al-alloy based printed wiring board is used for realizing each described method of claim as described above.
10. processing unit (plant) according to claim 9 is characterized in that, comprises reservoir, is used to store described cooling liquid, and preferably described reservoir can make the temperature of cooling liquid remain on below the predetermined temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201010586567.3A CN102091965B (en) | 2010-12-09 | 2010-12-09 | Method and device for processing aluminum-based or aluminum alloy-based printed circuit board |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010586567.3A CN102091965B (en) | 2010-12-09 | 2010-12-09 | Method and device for processing aluminum-based or aluminum alloy-based printed circuit board |
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| CN102091965A true CN102091965A (en) | 2011-06-15 |
| CN102091965B CN102091965B (en) | 2014-07-16 |
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| CN201010586567.3A Expired - Fee Related CN102091965B (en) | 2010-12-09 | 2010-12-09 | Method and device for processing aluminum-based or aluminum alloy-based printed circuit board |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103009185A (en) * | 2012-12-20 | 2013-04-03 | 景旺电子（深圳）有限公司 | Radiating device and radiating method of aluminum substrate end-mill |
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| US20030118412A1 (en) * | 2001-12-26 | 2003-06-26 | Sumitomo Electric Industries, Ltd. | Surface-coated machining tools |
| CN1853837A (en) * | 2005-04-27 | 2006-11-01 | 周钟霖 | Cutting tool for milling printing circuit board |
| US20080210661A1 (en) * | 2005-05-26 | 2008-09-04 | Kazuo Satoh | Method For Forming Via Hole in Substrate For Flexible Printed Circuit Board |
| CN101784162A (en) * | 2010-03-09 | 2010-07-21 | 施吉连 | Manufacturing method for microwave high frequency metal base circuit board |
| CN101815406A (en) * | 2010-04-08 | 2010-08-25 | 梅州五洲电路板有限公司 | Process for cutting printed circuit board |
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2010
- 2010-12-09 CN CN201010586567.3A patent/CN102091965B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030118412A1 (en) * | 2001-12-26 | 2003-06-26 | Sumitomo Electric Industries, Ltd. | Surface-coated machining tools |
| CN1853837A (en) * | 2005-04-27 | 2006-11-01 | 周钟霖 | Cutting tool for milling printing circuit board |
| US20080210661A1 (en) * | 2005-05-26 | 2008-09-04 | Kazuo Satoh | Method For Forming Via Hole in Substrate For Flexible Printed Circuit Board |
| CN101784162A (en) * | 2010-03-09 | 2010-07-21 | 施吉连 | Manufacturing method for microwave high frequency metal base circuit board |
| CN101815406A (en) * | 2010-04-08 | 2010-08-25 | 梅州五洲电路板有限公司 | Process for cutting printed circuit board |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103009185A (en) * | 2012-12-20 | 2013-04-03 | 景旺电子（深圳）有限公司 | Radiating device and radiating method of aluminum substrate end-mill |
| CN103009185B (en) * | 2012-12-20 | 2015-09-02 | 深圳市景旺电子股份有限公司 | A kind of heat abstractor of aluminium base gong plate and heat dissipating method |
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| CN102091965B (en) | 2014-07-16 |
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