CN106466796A - A kind of manufacture method of 3D sapphire panel and sapphire panel - Google Patents
A kind of manufacture method of 3D sapphire panel and sapphire panel Download PDFInfo
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- CN106466796A CN106466796A CN201510518101.2A CN201510518101A CN106466796A CN 106466796 A CN106466796 A CN 106466796A CN 201510518101 A CN201510518101 A CN 201510518101A CN 106466796 A CN106466796 A CN 106466796A
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- plane
- sapphire
- panel
- interior
- polished
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04103—Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
The present invention provides a kind of 3D sapphire processing technique, includes first carrying out sharp processing to sapphire panel, then completes convex surface and the polishing of profile surrounding, then non-recessed face is protected with spraying ink, then product is carried out with grooving and inside groove polishing；Thus overcoming the series of problems such as the positioning in non-recessed face and polishing difficulty after product 3D molding.This technique is all suitable for the inner groovy of 1～8mm depth, particularly can complete depth reach 7mm about Pocket Machining.The exterior quality of products obtained therefrom of the present invention is good, and the processing yield of product is high.Using the arc edge roughness RA≤5nm of the Sapphire mobile phone panel of the method processing, plane roughness RA≤0.5nm, fashionable appearance, third dimension are strong.
Description
Technical field
The present invention relates to sapphire processing method, particularly to a kind of manufacture method of 3D sapphire panel and sapphire panel.
Background technology
Increasingly extensive with touch-screen applications, its structure design is increasingly sophisticated.Particularly 3D sapphire screen this concept
Propose, touch panel process technology is put forward higher requirement.Traditional 3D face glass is all using hot bending, hot melt
Processing mode.Plate glass is placed in mould, then mould connection glass is placed on heating in high temperature bending furnace, reach
About glass heat fusion joint, apply certain external force simultaneously, make glass be shaped to the shape of mould.But sapphire fusing point is high, it melts
Point reaches more than 2000 DEG C, and traditional glass bending and hot melt processing mode are not appropriate for the processing of sapphire 3D panel, and
Machining is then ideal means.
In prior art, in the machining process of sapphire 3D product, all using the processing mode of polishing after first molding,
Molding therein includes its profile portion and female parts.Namely product is realized with CNC carrying out product after 3D molding again
Polishing.But this processing mode is only shallower to concave surface depth, and (interior concave plane is less to the interplanar height of B, such as
Practical when 0.5mm), and be related to that depth is deeper, during the deep groove of in particular up to 5-8mm, this processing mode
Products obtained therefrom yield is low.Main cause is：After machine-shaping, its dimensional accuracy relatively design requirement, concave sidewalls
Typically relatively thin, careless slightly when clamping, polishing, side, angle, wall portion will be made to subside, damage, and the workpiece after damaging is no
Method is repaired, and polishing is very risky.
Therefore, this area needs a kind of to solve the above problems so that the high system of the product yield of deep groove 3D sapphire panel
Make method.
Content of the invention
The present invention provides a kind of 3D sapphire processing technique, including first carrying out sharp processing to sapphire panel, then completes convex
Face and the polishing of profile surrounding, then to the spraying ink protection of non-recessed face, then carry out grooving and inside groove polishing to product.
Thus overcoming the series of problems such as the positioning in non-recessed face and polishing difficulty after product 3D molding.This technique is to 1～8mm depth
Inner groovy be all suitable for, particularly can complete depth reach 7mm about Pocket Machining.In addition, inner groovy polishing adopts
Elastic polished chuck coordinates the polishing fluid of different-grain diameter that product is polished.
Therefore, present invention firstly provides a kind of manufacture method of 3D sapphire panel, described 3D sapphire panel comprises mutually to put down
The A plane of row, B plane and interior concave plane, described A plane is the convex flat face of sapphire panel, and described interior concave plane is in face
The plane being inwardly recessed from B plane on the thickness direction of plate；Methods described comprises the steps：
1) grind：Using grinder, the A plane of sapphire flat panel substrates and B plane are milled to aimed at precision；
2) reconditioning profile：Realize shape molding using skive reconditioning A plane and the interplanar profile portion of B；
3) profile is polished：A plane and A plane and the interplanar profile portion of B are polished；
4) spraying ink protection：To step 3) in polished part carry out spray ink protection；
5) reconditioning female parts：Using carving machine bonded diamond emery wheel rod the sapphire interior concave plane of reconditioning and B plane with
Part between interior concave plane, to realize the molding of concave part；
6) concave is partially polished：Part between B plane and B plane and interior concave plane is polished；
7) oil and cleaning are taken off：Take off step 4) in spraying protection ink, and counter plate be carried out after to obtain described 3D blue
Gem panel.
Carving machine in the present invention belongs to a kind of Digit Control Machine Tool (CNC).In the present invention, be formed accurately interior concave plane,
Inner side edge, interior bevelling and profile portion, step 2) and step 5) in all preferably use the finishing impression possessing automatic tool changer function
Machine is realizing.
In a kind of specific embodiment, A plane and the interplanar profile portion of B include the outer arc being sequentially connected with A plane
Side 4, straight body position 8 and outer bevelling 5.
In a kind of specific embodiment, the part between B plane and interior concave plane includes the inner side with indent planar abutment
Side 6 and be located at inner side edge and the interplanar interior bevelling 7 of B, and described inner side edge is inner arc side or interior straight flange.
In the present invention, described outer arc side and outer bevelling are alternatively referred to as extrados and outer chamfering, and inner arc side and interior bevelling are equally also referred to as
For intrados and interior chamfering, described straight body position refers to the face vertical with A plane and B plane.Described inner side edge includes inner arc
Side or interior straight flange, wherein interior straight flange be also referred to as in face directly, it can be similarly the face vertical with A plane and B plane.
In a kind of specific embodiment, described 3D sapphire panel is mobile phone faceplate.
In a kind of specific embodiment, step 3) in, the polishing disk being first used in combination polishing fluid with rotation is to A plane
It is polished, in conjunction with using polishing fluid and hairbrush, A plane and the interplanar profile portion of B are polished.
A kind of in specific embodiment, step 4) in the protection ink thickness of spraying be 10～50 microns, preferably 20～30
Micron.In a kind of specific embodiment, described protection ink is the photosensitive oil of UV, it is combined with firming agent spraying and uses
When, ink layer is difficult for drop-off, and polished sapphire profile portion can be played a very good protection.Art technology
Personnel are understood that ground, and described protection ink can be obtained by commercially available.In the present invention, for taking off the chemical agent example of ink
Take off plating solution as can be selected for commercially available acquisition.
A kind of in specific embodiment, step 2) medium plain emery wheel a diameter of 50～120mm, preferably 75～85mm.Step
5) a diameter of 4～30mm of medium plain emery wheel rod.In the present invention, the diameter of described emery wheel rod can according to the granularity of boart boart not
With and different, such as slightly repair that 200 mesh corundum used are corresponding to use diameter 5～30mm, the emery wheel of preferably 8～15mm is excellent, and
In repair the corresponding emery wheel rod less using diameter of the boart boart less with particle diameter used by refine, such as 4～10mm, preferably
6～8mm.
A kind of in specific embodiment, step 2) in using the carving machine bonded diamond sand possessing automatic tool changer function
Wheel reconditioning realize shape molding, step 5) in using possess automatic tool changer function carving machine bonded diamond emery wheel rod reconditioning
Female parts.
In a kind of specific embodiment, in described 3D sapphire panel, A plane to the interplanar thickness of indent is
0.5～1.5mm, preferably 0.8～1mm；Interior concave plane to the interplanar height of B is 0.8～8mm, preferably 1～7mm.
The present invention correspondingly provides the 3D sapphire panel that a kind of method as defined above prepares.
The brief description of the process of the present invention is as follows：Roughly grind two planes → sharp processing → profile polishing (Si Zhou ＆A plane) →
Ink sprayed protection (non-recessed face) → dig inner groovy → groove polishes → takes off oil, cleaning and inspection.
The invention has the beneficial effects as follows：The present invention can realize a size of 2～4 cun, thickness is in the 3D sapphire face of 2-8mm
The processing of plate.The exterior quality of products obtained therefrom is good, and the processing yield of product is high.Sapphire mobile phone face using the method processing
The arc edge roughness RA≤5nm of plate, plane roughness RA≤0.5nm, fashionable appearance, third dimension are strong.
Brief description
Fig. 1 is the schematic diagram of sapphire panel product one side in the present invention,
Fig. 2 is the schematic diagram of sapphire panel product another side in the present invention,
Fig. 3 is the partial schematic diagram of the vertical cross-section in sapphire panel length direction in Fig. 2；
Wherein：1st, A plane, 2, B plane, 3, interior concave plane, 4, outer arc side, 5, outer bevelling, 6, inner side edge, 7,
Interior bevelling, 8, straight body position.
Specific embodiment
Below by instantiation, this technique is further elaborated with：
Embodiment 1
The present invention provides a kind of processing technique of sapphire panel, comprises the following steps that：
1) corase grind processing：The sapphire substrate of 2～8.5mm thickness (such as its a size of 121*61*8.1mm) will be already cut into,
It is positioned in kibbling mill upper lower burrs (upper lower burrs reversion), carry out twin grinding by adding lapping liquid, completed by this operation
Upper and lower surface is ground, and grinding removal amount is, for example, 0.1mm it is ensured that the gross thickness of panel is consistent and surface smoothness controls
Within 0.01mm.
2) sharp processing：Shape molding adopts finishing impression to machine.By using 3 kinds of different grain sizes (180#/300#/800#) sand
Take turns and to complete carse, medium and small three road techniques processing.This technique can be realized by carving machine automatic tool changer, and then subtracts
Lack the overall dimensions error of product multiple bearing, overall dimensions control in ± 0.03mm, and surface roughness typically exists
400～500nm.Collapse in order to avoid sharp processing produces sand, increased the bevelling of 0.1～0.15mm length come to improve sand collapse bad.
In order to overcome disadvantages mentioned above, it is an object of the invention to finishing impression machine maintenance profile technology, ripe sapphire polishing skill
Art, carving machine automatic tool changer and varigrained emery wheel rod grooving technique, and multiple elastic polished fixture cooperation rubbing head and throwing
The technique that light liquid realizes optimal polishing effect.
3) surface (A plane) polishing：Rough polishing is processed：2～3um Liquid diamond and copper dish, upper and lower disk rotating ratio：0.3～0.5,
Stress control is in 200～300kg, thickness deviation：± 0.03mm, surface roughness<10nm, flatness≤0.05mm.
Smart throwing is processed：Ludox and polishing pad, upper disk Stress control is in 0.25～0.27kg/cm2, rotating speed 38～42rpm, thickness is public
Difference：± 0.01mm, surface roughness ＜ 0.5nm, flatness≤0.05mm.
Surrounding polishes：3～5um Liquid diamond and hairbrush, upper disk rotating speed：45 ± 5rpm, carries out rough polishing to surrounding arc side, uses silicon
Colloidal sol carries out essence throwing to surrounding arc side.Surface roughness ＜ 5nm.
4) ink sprayed protection：With protection ink, ink protection is carried out to non-grooving face, prevent from processing during groove to polishing
Convex surface cause damage.The spraying preferred 20-30um of ink thickness, outward appearance is ink surface smooth impulse- free robustness impurity.
5) dig inner groovy：Using CNC (tool magazine) equipment, with 200#/400#/800# granularity emery wheel rod, groove is entered respectively
Row is thick, in, the groove disposal molding processing of essence.Product thickness tolerance thicknesses control in ± 0.03mm.
6) groove polishing：With 3～5um Liquid diamond cooperation spring rubbing head, rough polishing is carried out to surrounding arc side, coordinated with Ludox
Smart hairbrush carries out essence throwing, product surface refine polishing to surrounding arc side.
7) oil, cleaning inspection are taken off：By non-recessed face tempered oil film, taken off by chemical agent, after cleaning, product is carried out
Inspection.
Step 1 of the present invention) in, using two-sided cast iron plate and kibbling mill to sapphire flat panel substrates corase grind so that A plane and
The thickness of the flatness of B plane, the depth of parallelism and plate material is all milled to the flat of aimed at precision, such as A plane and B plane
Face degree all controls in ± 0.01mm.In the present invention, for example with 16B double-side rough grinding machine, adjuvant used is 40um carbon to corase grind
Change abrading with boron liquid, concrete machined parameters：Upper disk rotating speed 9～11RPM, lower wall rotating speed 28～32RPM, unit face pressure
0.06～0.08kg/cm2, that is, pressure be 6～8 atmospheric pressure, process time 28～32min.For avoiding groove two side cutter
After processing produce sand collapse, increase 0.15mm about interior chamfering and outer chamfering (i.e. chamfering connect both sides width remove
Amount is 0.15mm) improve sand and collapse situation.
A kind of in specific embodiment, step 2) in that the boart boart of two or more granularities can be used to polish is blue
Gem profile.As using the boart boart of big particle diameter polish outer arc side, after straight body position and outer bevelling, then the gold switching small particle
Hard rock sand polishing outer arc side, straight body position and outer bevelling.During reconditioning profile, CNC upper emery wheel high-speed rotation, product
Also can slowly rotate to coordinate CNC to sapphire reconditioning.A kind of in specific embodiment, step 2) in different
Two or more boart boarts of granularity are located on same emery wheel.In step 2) used by circular arc in emery wheel, on emery wheel disc
The shape of groove and the form fit of processed product.
Step 5) used in skive rod (cutter) at least include two or more, in a detailed embodiment,
The emery wheel that described skive rod diminishes successively for three kinds of diamond particle diameters is excellent, and the diamond grit of the first cutter is, for example,
120～200 mesh, the diamond grit of the second cutter is, for example, 200～500 mesh, and the diamond grit of the 3rd cutter is, for example,
600～1000 mesh.During reconditioning female parts, emery wheel rod high-speed rotation on carving machine, product is but transfixion
's.
In the specific course of processing, step 2) in processing when, be the machining state of emery wheel portion envelops sapphire panel,
And step 5) in be sapphire faceplate part wrap up emery wheel rod machining state.Interior bevelling in the present invention and outer bevelling
To be plane bevelling or cambered surface bevelling, it is plane bevelling shown in Fig. 3.
A kind of in specific embodiment, step 6) concave is partially polished, including to B plane and B plane and indent
Part between plane is polished, and also includes internal concave plane 3 and is polished.
The invention has the beneficial effects as follows：The present invention can realize a size of 2～4 cun, and thickness is in the 3D sapphire face of 2-8mm
The processing of plate.It is critical only that of the present invention completes the profile of plate product after polishing, with spraying ink, non-recessed face is carried out
Protection.The present invention changes in traditional handicraft the first technique to re-polishing after inside and outside whole positions 3D molding, thus reducing convex
The risk of mirror polish fragmentation.The method of the present invention improves makes yield it is ensured that the output of product.Gone out using this technique productions
3D sapphire panel exterior quality good.Arc edge roughness：RA≤5nm, surface roughness：RA≤0.5nm, during outward appearance
Still, third dimension is strong.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for those skilled in the art
For member, the present invention can have various modifications and variations.All any modifications within the spirit and principles in the present invention, made,
Equivalent, improvement etc., should be included within the scope of the present invention.
Claims (10)
1. a kind of manufacture method of 3D sapphire panel, A plane (1) that described 3D sapphire panel comprises to be parallel to each other,
B plane (2) and interior concave plane (3), described A plane is the convex flat face of sapphire panel, and described interior concave plane is in panel
Thickness direction on the plane that is inwardly recessed from B plane；Methods described comprises the steps：
1) grind：Using grinder, the A plane of sapphire flat panel substrates and B plane are milled to aimed at precision；
2) reconditioning profile：Realize shape molding using skive reconditioning A plane and the interplanar profile portion of B；
3) profile is polished：A plane and A plane and the interplanar profile portion of B are polished；
4) spraying ink protection：To step 3) in polished part carry out spray ink protection；
5) reconditioning female parts：Using carving machine bonded diamond emery wheel rod the sapphire interior concave plane of reconditioning and B plane with
Part between interior concave plane, to realize the molding of concave part；
6) concave is partially polished：Part between B plane and B plane and interior concave plane is polished；
7) oil and cleaning are taken off：Take off step 4) in spraying protection ink, and counter plate be carried out after to obtain described 3D blue
Gem panel.
2. method according to claim 1 is it is characterised in that A plane and the interplanar profile portion of B include putting down with A
Outer arc side (4), straight body position (8) and outer bevelling (5) that face is sequentially connected.
3. method according to claim 1 it is characterised in that the part between B plane and interior concave plane include with interior
Inner side edge (6) that concave plane adjoins and be located at inner side edge and the interplanar interior bevelling (7) of B, and described inner side edge is interior
Arc side or interior straight flange.
4. the method according to any one in claims 1 to 3 is it is characterised in that described 3D sapphire panel is mobile phone
Panel.
5. the method according to any one in claims 1 to 3 is it is characterised in that step 3) in, first it is used in combination
Polishing fluid and rotation polishing disk A plane is polished, in conjunction with using polishing fluid and hairbrush to A plane and B plane
Between profile portion be polished.
6. the method according to any one in claims 1 to 3 is it is characterised in that step 4) in spraying protection oil
Black thickness is 10～50 microns, preferably 20～30 microns.
7. the method according to any one in claims 1 to 3 is it is characterised in that step 2) medium plain emery wheel a diameter of
50～120mm, preferably 75～85mm；Step 5) the excellent a diameter of 4～30mm of medium plain emery wheel.
8. the method according to any one in claims 1 to 3 is it is characterised in that step 2) in using possessing automatically
Shape molding, step 5 are realized in the carving machine bonded diamond emery wheel reconditioning of tool changing function) in using possessing automatic tool changer function
Carving machine bonded diamond emery wheel rod reconditioning female parts.
9. the method according to any one in claims 1 to 3 is it is characterised in that in described 3D sapphire panel,
A plane to the interplanar thickness of indent is 0.5～1.5mm, preferably 0.8～1mm；Interior concave plane to the interplanar height of B is
0.8～8mm, preferably 1～7mm.
10. a kind of 3D sapphire panel being prepared according to any one methods described in claim 1～9.
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| CN201510518101.2A CN106466796B (en) | 2015-08-21 | 2015-08-21 | A kind of production method and sapphire panel of 3D sapphires panel |
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| CN201510518101.2A CN106466796B (en) | 2015-08-21 | 2015-08-21 | A kind of production method and sapphire panel of 3D sapphires panel |
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| CN106466796B CN106466796B (en) | 2018-09-18 |
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| CN108655869A (en) * | 2017-03-30 | 2018-10-16 | 蓝思科技（长沙）有限公司 | A kind of processing method of 2.5D globoidal glass |
| CN109759907A (en) * | 2017-11-10 | 2019-05-17 | 蓝思科技股份有限公司 | A kind of polishing method of 2.5D sapphire window screen |
| CN112496874A (en) * | 2020-11-30 | 2021-03-16 | 蓝思科技(东莞)有限公司 | 3D glass polishing jig and 3D glass surface treatment process |
| CN113977362A (en) * | 2021-11-11 | 2022-01-28 | 台州星星光电科技有限公司 | Machining method of 3D wearable watch cover |
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| CN113977362A (en) * | 2021-11-11 | 2022-01-28 | 台州星星光电科技有限公司 | Machining method of 3D wearable watch cover |
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| Publication number | Publication date |
|---|---|
| CN106466796B (en) | 2018-09-18 |
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