CN108012420A - A kind of molding milling method of pcb board microflute - Google Patents
A kind of molding milling method of pcb board microflute Download PDFInfo
- Publication number
- CN108012420A CN108012420A CN201711056912.0A CN201711056912A CN108012420A CN 108012420 A CN108012420 A CN 108012420A CN 201711056912 A CN201711056912 A CN 201711056912A CN 108012420 A CN108012420 A CN 108012420A
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- pcb board
- milling
- milling cutter
- knife
- microflute
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Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/0011—Working of insulating substrates or insulating layers
- H05K3/0044—Mechanical working of the substrate, e.g. drilling or punching
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C3/00—Milling particular work; Special milling operations; Machines therefor
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Milling Processes (AREA)
Abstract
The present invention is suitable for pcb board processing technique field, discloses a kind of molding milling method of pcb board microflute, comprises the following steps：Pcb board is fixed on Working position；The lower tool bore through circuit board is drilled with pcb board using drill bit；Using the first milling cutter at lower tool bore under knife, and 0.5 to 0.7 times of thickness of slab depth of pcb board is drilled under the first milling cutter, then the first milling cutter carries out horizontal milling for the first time by first path in the first direction to pcb board；Pcb board after completion for the first time horizontal milling is overturn and fixed；Using the second milling cutter from knife under the destination county of corresponding first path, and 0.5 to 0.7 times of thickness of slab depth of pcb board is drilled under the second milling cutter, then the second milling cutter in a second direction by inversely in first path direction milling to the starting point for corresponding to first path.A kind of molding milling method of pcb board microflute provided by the present invention, by two processing methods for facing milling, on the premise of groove profile increased quality is ensured, improves cutter life.
Description
Technical field
The invention belongs to pcb board processing technique field, more particularly to a kind of molding milling method of pcb board microflute.
Background technology
With the high speed development trend of electronic system product, for PCB slabs need to be molded the demand of fine trench structure by
Step increase, now mainly using groove knife to its machine-shaping, but processes the fine groove time slot knife blade draw ratio of thick plate structure and is more than 10
Times when groove profile is bad, processing quality is unstable phenomenon occurs, trough rim burr is more, and the groove knife processing service life, be difficult to meet will
Ask.
The content of the invention
It is an object of the invention to overcome above-mentioned the deficiencies in the prior art, there is provided a kind of molding milling of pcb board microflute
Processing method, its processing effect is good, cutter life length.
The technical scheme is that：A kind of molding milling method of pcb board microflute, comprises the following steps：
Pcb board is fixed on Working position；
The lower tool bore through circuit board is drilled with pcb board using drill bit；
Using the first milling cutter at the lower tool bore under knife, and 0.5 to 0.7 times of thickness of slab depth of pcb board is drilled under the first milling cutter
Spend, then the first milling cutter carries out horizontal milling for the first time by first path in the first direction to pcb board；
Pcb board after completion for the first time horizontal milling is overturn and fixed；
Using the second milling cutter from knife under the destination county of corresponding first path, and pcb board 0.5 to 0.7 is drilled under the second milling cutter
Times thickness of slab depth, then the second milling cutter is in a second direction by inversely in the direction milling of first path to corresponding to first path
Starting point, the second direction are opposite to the first direction.
Alternatively, first milling cutter is flat pineapple tooth milling cutter.
Alternatively, second milling cutter is fish tail point of a knife type pineapple tooth milling cutter.
Alternatively, wherein, pcb board is fixed on Working position and is comprised the following steps：
Four pin holes are drilled with four angles of pcb board, are fixed circuit board on Working position by pin.
Alternatively, 0.55 to 0.65 times of thickness of slab depth of pcb board is drilled under first milling cutter.
Alternatively, 0.55 to 0.65 times of thickness of slab depth of pcb board is drilled under second milling cutter.
Alternatively, the brill footpath for boring footpath, the brill footpath of the first milling cutter and the second milling cutter of the drill bit is equal.
Alternatively, the knife footpath of first milling cutter is 0.40 to 0.45mm, and rotating speed is 50 to 60Krpm, and feeding speed is
150 to 180mm/min, terminal-velocity is 400 to 500mm/min.
Alternatively, the knife footpath of first milling cutter be 0.35 to 0.40mm, rotating speed be 60 to 65Krpm, feeding speed 130 to
150mm/min, terminal-velocity are 400 to 500mm/min；
Alternatively, the knife footpath of first milling cutter is 0.30 to 0.35mm, rotating speed is 65 to 70Krpm, feeding speed 110
To 130mm/min, terminal-velocity is 350 to 400mm/min；
Alternatively, the knife footpath of first milling cutter is 0.25-0.30mm, rotating speed is 70 to 75Krpm, feeding speed for 100 to
110mm/min, terminal-velocity are 350 to 400mm/min；
Alternatively, the knife footpath of first milling cutter is 0.20-0.25mm, rotating speed is 75 to 80Krpm, feeding speed 100 to
110mm/min, terminal-velocity 300 to 350mm/min.
Alternatively, the knife footpath of second milling cutter is 0.40 to 0.45mm, and rotating speed is 50 to 60Krpm, and feeding speed is
150 to 180mm/min, terminal-velocity is 400 to 500mm/min.
Alternatively, the knife footpath of second milling cutter be 0.35 to 0.40mm, rotating speed be 60 to 65Krpm, feeding speed 130 to
150mm/min, terminal-velocity are 400 to 500mm/min；
Alternatively, the knife footpath of second milling cutter is 0.30 to 0.35mm, rotating speed is 65 to 70Krpm, feeding speed 110
To 130mm/min, terminal-velocity is 350 to 400mm/min；
Alternatively, the knife footpath of second milling cutter is 0.25-0.30mm, rotating speed is 70 to 75Krpm, feeding speed for 100 to
110mm/min, terminal-velocity are 350 to 400mm/min；
Alternatively, the knife footpath of second milling cutter is 0.20-0.25mm, rotating speed is 75 to 80Krpm, feeding speed 100 to
110mm/min, terminal-velocity 300 to 350mm/min.
Alternatively, the pcb board includes one layer or at least two layers lamina, and the individual layer thickness of slab is greater than or equal to 3mm.
A kind of molding milling method of pcb board microflute provided by the present invention, it is thicker to be processed to thickness
Pcb board, by the way of prebored hole, accelerates the efficiency that knife drills under milling cutter, selects flat-bottom milling cutter to carry for first time Milling Process
For favourable basis；By two processing methods for facing milling, on the premise of groove profile increased quality is ensured, improve cutter and use the longevity
Life；Moreover, the first milling milling cutter is flat-bottom milling cutter, lower the breaking rate in first time milling process, improve processing efficiency, reduce
Cost.By becoming quadrant and becoming two kinds of processing methods of program, live graphics processing shape and lathe actual conditions can be combined, can
There is provided and select suitable processing method；By selecting suitable machined parameters, on the premise of ensureing processing quality and processing efficiency, most
The raising cutter life changed greatly.
Brief description of the drawings
To describe the technical solutions in the embodiments of the present invention more clearly, below will be to needed in the embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for ability
For the those of ordinary skill of domain, without creative efforts, it can also be obtained according to these attached drawings other attached
Figure.
Fig. 1 is that first is used in a kind of molding milling method of pcb board microflute provided in an embodiment of the present invention
Floor map during milling cutter processing PCB plate；
Fig. 2 is that second is used in a kind of molding milling method of pcb board microflute provided in an embodiment of the present invention
Floor map during milling cutter processing PCB plate；
Fig. 3 is that first is used in a kind of molding milling method of pcb board microflute provided in an embodiment of the present invention
Floor map during milling cutter processing PCB plate；
Fig. 4 is that second is used in a kind of molding milling method of pcb board microflute provided in an embodiment of the present invention
Floor map during milling cutter processing PCB plate.
Fig. 5 is that the twolip used in a kind of molding milling method of pcb board microflute provided in an embodiment of the present invention is double
The floor map of gouge bit；
Fig. 6 is that the twolip used in a kind of molding milling method of pcb board microflute provided in an embodiment of the present invention is double
The floor map of gouge bit；
Fig. 7 is the twolip list used in a kind of molding milling method of pcb board microflute provided in an embodiment of the present invention
The floor map of gouge bit；
Fig. 8 is the twolip list used in a kind of molding milling method of pcb board microflute provided in an embodiment of the present invention
The floor map of gouge bit；
Fig. 9 is the single-blade list used in a kind of molding milling method of pcb board microflute provided in an embodiment of the present invention
The floor map of gouge bit；
Figure 10 is the single-blade list used in a kind of molding milling method of pcb board microflute provided in an embodiment of the present invention
The floor map of gouge bit；
Figure 11 is the first milling used in a kind of molding milling method of pcb board microflute provided in an embodiment of the present invention
The floor map of knife；
Figure 12 is the second milling used in a kind of molding milling method of pcb board microflute provided in an embodiment of the present invention
The floor map of knife
Figure 13 is the first milling used in a kind of molding milling method of pcb board microflute provided in an embodiment of the present invention
The floor map of knife；
Figure 14 is the second milling used in a kind of molding milling method of pcb board microflute provided in an embodiment of the present invention
The floor map of knife.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, it is right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
It should be noted that when element is referred to as " being fixed on " or " being arranged at " another element, it can be directly another
On one element or it may be simultaneously present centering elements.When an element is known as " being connected to " another element, it can
To be directly to another element or may be simultaneously present centering elements.
Only it is relative concept each other it should also be noted that, the orientation term such as left and right, upper and lower in the embodiment of the present invention
Or using the normal operating condition of product as reference, and should not be regarded as restrictive.
As shown in Figures 1 to 4, a kind of molding milling method of pcb board microflute provided in an embodiment of the present invention, including
Following steps：
Pcb board 1 is fixed on Working position；
The lower tool bore 12 through circuit board is drilled with pcb board 1 using drill bit；
Using the first milling cutter at the lower tool bore 12 under knife, and 10.5 to 0.7 times of thicknesss of slab of pcb board are drilled under the first milling cutter
Depth, then the first milling cutter horizontal milling for the first time is carried out by first path in the first direction to pcb board 1, form the first microflute
13 (blind slots)；The diameter of drill bit can be equal with the diameter of the first milling cutter, alternatively, the diameter of drill bit can be less than the first milling cutter
Diameter.The front end of drill bit can be tapered, it is easy to drill pcb board 1.Horizontal milling does not have complete milling to wear pcb board 1 for the first time,
The stress of first milling cutter is relatively small, and the first milling cutter front end is rocked minimum, and trough rim is neatly not likely to produce burr, and processing quality is high.
Pcb board 1 after completion for the first time horizontal milling is overturn and fixed；
Using the second milling cutter from knife under the destination county of corresponding first path, and pcb board 10.5 to 0.7 is drilled under the second milling cutter
Times thickness of slab depth, then the second milling cutter is in a second direction by inversely in the direction milling of first path to corresponding to first path
Starting point, the second direction is opposite to the first direction, i.e., descends knife to form a bar groove position 14 respectively by obverse and reverse
(straight slot), first path, the second path can be straightway, broken line or arc segment.Using to Milling Machining mode processing PCB slab
The micro groove structure of structure, can not only improve the processing service life, and can improve processing quality.First milling cutter, the second milling cutter can be adopted
With pineapple tooth design structure, under the premise of ensureing cutter hub rigidity, the groove profile quality of processing is improved.And using to Milling Machining side
Formula, meets PCB slabs fine groove profile shaping demand, there is two kinds to Milling Machining mode, first change when being to milling lathe quadrant but
Program is constant, and second changes processing program when being to milling but lathe quadrant is constant.It is specific as follows：
Method one (with reference to figure 1 and Fig. 2)：
The first step：Drill bit using a diameter of 3.2 is being processed four corner lead plug nail 11 of pcb board 1, such as plate domestic demand
Lead plug nail 11 is wanted, then beats corresponding pin hole 11 along perpendicular bisector.
Second step：Pin is installed, (is drilled using lower tool bore 12 is bored with the drill bit of the first milling cutter, the second milling cutter same diameter
Pcb board 1).
3rd step：Using the first milling cutter (flat pineapple tooth milling cutter), under be drilled into 0.60 times of thickness of slab thickness depth, carry out first
Secondary milling.
4th step：Withdrawing, turns over pcb board 1 along level, installs fixed pcb board 1.
5th step：Machine tooling program revisions, will change the 4th quadrant into, processing feed program is not according to 1st quadrant originally
Become.
6th step：Using the second milling cutter (fish tail point of a knife type pineapple tooth milling cutter), under be drilled into 0.60 times of thickness of slab thickness depth, into
Second of milling of row.
Method two (with reference to figure 3 and Fig. 4)：
The first step：Drill bit using a diameter of 3.2 is being processed four corner lead plug nail 11 of plate, as needed to bore in plate
Pin hole 11, then beat corresponding pin hole 11 along perpendicular bisector.
Second step：Pin is installed, lower tool bore 12 (drilling pcb board 1) is bored using with the drill bit of milling cutter same diameter.
3rd step：Using the first milling cutter (flat pineapple tooth milling cutter), under be drilled into 0.60 times of thickness of slab thickness depth, carry out first
Secondary milling.
4th step：Withdrawing, turns over pcb board 1 along level, mounting plate material.
5th step：Machine tooling program revisions, processing quadrant it is constant, processing feed routine change by it is original from left to right
Feed makes into carry out Milling Process from right to left.
6th step：Using the second milling cutter (fish tail type point of a knife type pineapple tooth milling cutter), under be drilled into 0.60 times of thickness of slab thickness depth,
Carry out second of milling.
Alternatively, the brill footpath for boring footpath, the brill footpath of the first milling cutter and the second milling cutter of the drill bit is equal.In concrete application,
Drill bit successively can also successively be drilled with the beginning and end of first path and run through the lower tool bore 12 of circuit board.Drill bit 2 can be
Twolip double flute (shown in Fig. 5 and Fig. 6), twolip list groove (shown in Fig. 7 and Fig. 8), single-blade list groove (shown in Fig. 9 and Figure 10) etc. are identical straight
The drill bit of footpath specification.
Alternatively, first milling cutter is flat pineapple tooth milling cutter (Figure 11,13 shown in), its platybasic type sharpening, by sharpening
Emery wheel at a certain angle to the grinding of apex point position twice, its angle is for 176 ° to 180 °, good stability.
Alternatively, second milling cutter (Figure 12,14 shown in) can be fish tail point of a knife type pineapple tooth milling cutter, fish tail type sharpening,
Apex point position is ground twice at a certain angle by sharpening emery wheel, its angle is 130 ° to 140 °.
Specifically, wherein, pcb board 1 is fixed on Working position and is comprised the following steps：It is drilled with four angles of pcb board 1
Four pin holes 11, are fixed circuit board on Working position by pin, four pin holes 11 can be located at rectangle or pros
At four angles of shape, in order to position pcb board 1 after overturning.
Alternatively, 10.55 to 0.65 times of thickness of slab depth of pcb board are drilled under first milling cutter, it is preferable that first milling
10.6 times of thickness of slab depth of pcb board are drilled under knife.
Alternatively, 10.55 to 0.65 times of thickness of slab depth of pcb board are drilled under second milling cutter.Preferably, second milling
10.6 times of thickness of slab depth of pcb board are drilled under knife.
Alternatively, the knife footpath of first milling cutter is 0.40 to 0.45mm, and rotating speed is 50 to 60Krpm, and feeding speed is
150 to 180mm/min, terminal-velocity is 400 to 500mm/min.
Alternatively, the knife footpath of first milling cutter be 0.35 to 0.40mm, rotating speed be 60 to 65Krpm, feeding speed 130 to
150mm/min, terminal-velocity are 400 to 500mm/min；
Alternatively, the knife footpath of first milling cutter is 0.30 to 0.35mm, rotating speed is 65 to 70Krpm, feeding speed 110
To 130mm/min, terminal-velocity is 350 to 400mm/min；
Alternatively, the knife footpath of first milling cutter is 0.25-0.30mm, rotating speed is 70 to 75Krpm, feeding speed for 100 to
110mm/min, terminal-velocity are 350 to 400mm/min；
Alternatively, the knife footpath of first milling cutter is 0.20-0.25mm, rotating speed is 75 to 80Krpm, feeding speed 100 to
110mm/min, terminal-velocity 300 to 350mm/min.By selecting suitable machined parameters, ensure processing quality and processing efficiency
Under the premise of, it is maximized to improve cutter life.
Alternatively, the knife footpath of second milling cutter is 0.40 to 0.45mm, and rotating speed is 50 to 60Krpm, and feeding speed is
150 to 180mm/min, terminal-velocity is 400 to 500mm/min.
Alternatively, the knife footpath of second milling cutter be 0.35 to 0.40mm, rotating speed be 60 to 65Krpm, feeding speed 130 to
150mm/min, terminal-velocity are 400 to 500mm/min；
Alternatively, the knife footpath of second milling cutter is 0.30 to 0.35mm, rotating speed is 65 to 70Krpm, feeding speed 110
To 130mm/min, terminal-velocity is 350 to 400mm/min；
Alternatively, the knife footpath of second milling cutter is 0.25-0.30mm, rotating speed is 70 to 75Krpm, feeding speed for 100 to
110mm/min, terminal-velocity are 350 to 400mm/min；
Alternatively, the knife footpath of second milling cutter is 0.20-0.25mm, rotating speed is 75 to 80Krpm, feeding speed 100 to
110mm/min, terminal-velocity 300 to 350mm/min.By selecting suitable machined parameters, ensure processing quality and processing efficiency
Under the premise of, it is maximized to improve cutter life.
Specifically, the pcb board 1 can include one layer or at least two layers lamina, and the individual layer thickness of slab is more than or waits
In 3mm.
The molding milling method of 1 microflute of a kind of pcb board that the embodiment of the present invention is provided, is processed to thickness
Thicker pcb board 1, by the way of prebored hole, accelerates the efficiency that knife drills under milling cutter, is selected for first time Milling Process flat
Milling cutter provides favourable basis；By two processing methods for facing milling, on the premise of groove profile increased quality is ensured, cutter is improved
Service life；Moreover, the first milling milling cutter is flat-bottom milling cutter, lower the breaking rate in first time milling process, improve processing effect
Rate, reduces cost.By becoming quadrant and becoming two kinds of processing methods of program, live graphics processing shape can be combined and lathe is actual
Situation, it is possible to provide select suitable processing method；By selecting suitable machined parameters, before ensureing processing quality and processing efficiency
Put, it is maximized to improve cutter life.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
Any modification, equivalent substitution or improvement made within refreshing and principle etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of molding milling method of pcb board microflute, it is characterised in that comprise the following steps：
Pcb board is fixed on Working position；
The lower tool bore through circuit board is drilled with pcb board using drill bit；
Using the first milling cutter at the lower tool bore under knife, and 0.5 to 0.7 times of thickness of slab depth of pcb board is drilled under the first milling cutter, so
The first milling cutter carries out horizontal milling for the first time by first path in the first direction to pcb board afterwards；
Pcb board after completion for the first time horizontal milling is overturn and fixed；
Using the second milling cutter from knife under the destination county of corresponding first path, and 0.5 to 0.7 times of plate of pcb board is drilled under the second milling cutter
Thick depth, then the second milling cutter in a second direction by inversely in first path direction milling to correspond to first path starting point
Place, the second direction are opposite to the first direction.
A kind of 2. molding milling method of pcb board microflute as claimed in claim 1, it is characterised in that first milling
Knife is flat pineapple tooth milling cutter.
A kind of 3. molding milling method of pcb board microflute as claimed in claim 1, it is characterised in that second milling
Knife is fish tail point of a knife type pineapple tooth milling cutter.
4. a kind of molding milling method of pcb board microflute as claimed in claim 1, it is characterised in that wherein, by PCB
Plate is fixed on Working position and comprises the following steps：
Four pin holes are drilled with four angles of pcb board, are fixed circuit board on Working position by pin.
A kind of 5. molding milling method of pcb board microflute as claimed in claim 1, it is characterised in that first milling
0.55 to 0.65 times of thickness of slab depth of pcb board is drilled under knife.
A kind of 6. molding milling method of pcb board microflute as claimed in claim 1, it is characterised in that second milling
0.55 to 0.65 times of thickness of slab depth of pcb board is drilled under knife.
7. a kind of molding milling method of pcb board microflute as claimed in claim 1, it is characterised in that the drill bit
The brill footpath for boring footpath, the brill footpath of the first milling cutter and the second milling cutter is equal.
A kind of 8. molding milling method of pcb board microflute as claimed in claim 1, it is characterised in that
The knife footpath of first milling cutter is 0.40 to 0.45mm, and rotating speed is 50 to 60Krpm, and feeding speed is 150 to 180mm/
Min, terminal-velocity are 400 to 500mm/min.
Alternatively, the knife footpath of first milling cutter be 0.35 to 0.40mm, rotating speed be 60 to 65Krpm, feeding speed 130 to
150mm/min, terminal-velocity are 400 to 500mm/min；
Alternatively, the knife footpath of first milling cutter be 0.30 to 0.35mm, rotating speed be 65 to 70Krpm, feeding speed for 110 to
130mm/min, terminal-velocity are 350 to 400mm/min；
Alternatively, the knife footpath of first milling cutter is 0.25-0.30mm, rotating speed is 70 to 75Krpm, feeding speed for 100 to
110mm/min, terminal-velocity are 350 to 400mm/min；
Alternatively, the knife footpath of first milling cutter is 0.20-0.25mm, rotating speed is 75 to 80Krpm, feeding speed 100 to 110mm/
Min, terminal-velocity 300 to 350mm/min.
A kind of 9. molding milling method of pcb board microflute as claimed in claim 1, it is characterised in that
The knife footpath of second milling cutter is 0.40 to 0.45mm, and rotating speed is 50 to 60Krpm, and feeding speed is 150 to 180mm/
Min, terminal-velocity are 400 to 500mm/min.
Alternatively, the knife footpath of second milling cutter be 0.35 to 0.40mm, rotating speed be 60 to 65Krpm, feeding speed 130 to
150mm/min, terminal-velocity are 400 to 500mm/min；
Alternatively, the knife footpath of second milling cutter be 0.30 to 0.35mm, rotating speed be 65 to 70Krpm, feeding speed for 110 to
130mm/min, terminal-velocity are 350 to 400mm/min；
Alternatively, the knife footpath of second milling cutter is 0.25-0.30mm, rotating speed is 70 to 75Krpm, feeding speed for 100 to
110mm/min, terminal-velocity are 350 to 400mm/min；
Alternatively, the knife footpath of second milling cutter is 0.20-0.25mm, rotating speed is 75 to 80Krpm, feeding speed 100 to 110mm/
Min, terminal-velocity 300 to 350mm/min.
A kind of 10. molding milling method of pcb board microflute as claimed in claim 1, it is characterised in that the pcb board
Including one layer or at least two layers lamina, and the individual layer thickness of slab is greater than or equal to 3mm.
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| CN201711056912.0A CN108012420A (en) | 2017-10-27 | 2017-10-27 | A kind of molding milling method of pcb board microflute |
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| CN201711056912.0A CN108012420A (en) | 2017-10-27 | 2017-10-27 | A kind of molding milling method of pcb board microflute |
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| CN109819593A (en) * | 2019-01-17 | 2019-05-28 | 广州兴森快捷电路科技有限公司 | Slot processing method and circuit board |
| CN110948022A (en) * | 2019-12-17 | 2020-04-03 | 东莞市五株电子科技有限公司 | PCB forming process and device |
| CN111356305A (en) * | 2020-03-18 | 2020-06-30 | 四川英创力电子科技股份有限公司 | Processing technology for forming V-CUT |
| CN112743611A (en) * | 2020-12-28 | 2021-05-04 | 深圳市雅信宏达电子科技有限公司 | Circuit board manufacturing process, system and micro-diameter routing knife |
| CN113276198A (en) * | 2021-04-09 | 2021-08-20 | 宋志龙 | Cutting processing system and working method of PCB |
| CN113438812A (en) * | 2021-06-15 | 2021-09-24 | 江西景旺精密电路有限公司 | Processing method for forming multiple parallel overlong grooves of PCB |
| CN114126227A (en) * | 2021-10-28 | 2022-03-01 | 苏州烁点电子科技有限公司 | PCB (printed circuit board) drilling process |
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Application publication date: 20180508 |