EP1525947A1 - Procédé de polissage de finition - Google Patents
Procédé de polissage de finition Download PDFInfo
- Publication number
- EP1525947A1 EP1525947A1 EP03292647A EP03292647A EP1525947A1 EP 1525947 A1 EP1525947 A1 EP 1525947A1 EP 03292647 A EP03292647 A EP 03292647A EP 03292647 A EP03292647 A EP 03292647A EP 1525947 A1 EP1525947 A1 EP 1525947A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- polishing
- finishing
- polished
- polishing element
- deformable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- 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
- B24B13/00—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor
- B24B13/015—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor of television picture tube viewing panels, headlight reflectors or the like
-
- 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
- B24B13/00—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor
- B24B13/02—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor by means of tools with abrading surfaces corresponding in shape with the lenses to be made
-
- 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
- B24B37/00—Lapping machines or devices; Accessories
Definitions
- the present invention relates to a polishing process finishing a surface with a polishing element and an abrasive.
- a polishing element for example a felt
- a abrasive for example colloidal silica
- the technique generally used consists in sticking the felt on a metal tool by possibly interposing a flexible material such as foam. This technique presents the disadvantage of deforming the surface to be polished, so that the results obtained are not optimal.
- the subject of the present invention is a process which makes it possible to remedy at least part of the problem mentioned above.
- Said material is advantageously deformable by creep and / or curable. It may for example be pitch which is heated to a temperature which allows it to creep and which, after b and before c, is then cooled to obtain a hardening, or else an adhesive which is in the form of a gel which, after b, and before c is cured for example by polymerization or application of a particular ultraviolet radiation.
- the material can also be plaster ..
- the polishing element can be a felt or any material polishing suitable for finishing polishing leading to low roughness (of the order of 1 ⁇ to some A for example).
- the material of polishing is advantageously carried by a polishing support.
- Finishing polishing can in particular be carried out using of a machine ensuring a relative displacement of translation between the element of polishing and the surface to be polished in two perpendicular directions and possibly rotating about an axis parallel to one of said directions perpendicular. Finishing polishing is particularly applicable to cases of surfaces having a generator, the surface being arranged so such that the direction of the generator is parallel to that of the two directions above which is parallel to the axis of rotation.
- the method applies in particular to surfaces that before finishing polishing, have been previously subjected to pre-polishing (or polishing said coarse) and polishing itself.
- the surface has a roughness for example between 3 ⁇ and 15 ⁇ , so after finishing polishing, the roughness can be between 1A and 5A, and more particularly between 1 ⁇ and 3 ⁇ for glass, silica, silicon and ceramic surfaces (see between 1 ⁇ and 2 ⁇ for glass or silica surfaces) and between 3 ⁇ and 5 ⁇ for a nickel surface coated with a metal surface.
- the invention relates to polishing finishing of surfaces with low roughness (including mirrors) whose shape is for example rectangular. It is based on the use of polishing machines having a kinematic with 2 perpendicular linear axes.
- the shapes generated on surfaces can be planes, spheres, cylinders according to their large size (cylinder southern) or their small size (sagittal cylinder), profile mirrors southern elliptical or parabolic, parabolic or elliptical mirrors representing a piece of a mirror of revolution.
- One of the applications of these surfaces is the realization of mirrors used to shape and focus beams of light X emitted by synchrotron or electron laser light sources free.
- This operation if performed in a conventional manner, generally deforms the surface to be polished.
- the felt is directly adhered to the pitch and its creep is used to shape the surface of the felt so that it is complementary to the surface to be polished.
- the shaping is done by heating the pitch, tool or substrate of the surface to be polished, the mold being the surface to be polished itself. This heating is carried out at a temperature of the order of 60 ° C at which the pitch has a viscosity sufficient to deform by fluant without pouring.
- the movements and pressures applied are similar to those used during the polishing itself (step 4 above), that is to say between 5 and 100 g / cm 2 .
- the state of the art normally known for this phase is stick the felt on a metal tool, possibly inserting a flexible material such as foam.
- the advantage of the process according to the invention is to have a hard tool (pitch at a temperature of 20 ° C) having an outline that matches the shape of the surface to be polished.
- the roughness obtained is generally between 1 and 2 ⁇ on glass and silica. It is generally between 1 ⁇ and 3 ⁇ on silicon and ceramics, and between 3 ⁇ and 5 ⁇ on metal surfaces coated with nickel.
- the polishing element 2 (thickness by example between 0.1 mm and 2 mm) is stuck on the pitch 3 which is integral with a support 4 for example cylindrical which serves as a polishing tool.
- the element of polishing 2 may be a porous material such as a felt, especially a microcellular polyurethane foam from RHODES (Bierkeek - Belgium) or a porous synthetic material ("Finishing Pad") of the Company RODEL, or polishing supports (or “drops”) of the Company Buehler.
- the tool 4 After heating the pitch until it gives it a viscosity to flow without flowing (for example by heating it to a temperature of the order of 60 ° C), the tool 4 is pressed on a surface to be polished 6 of the optical part 1 with sufficient pressure so that the deformation by creep of the pitch allows the felt 2 in contact with the surface 6 to marry locally the shape of the surface 6.
- the felt 2 which can be in one or more pieces preferably has a surface equal to, more or less 20% to that of surface 6.
- the pressure P applied during finishing polishing is of the order of 5 to 100 grams / cm 2 .
- Figure 1b illustrates the process in the case of a surface plane or mirror having a generatrix G in the plane of section.
- FIG. 2 represents a machine that can be used to implement finishing polishing process, as well as for the steps previous smoothing, pre-polishing and polishing itself.
- Each of the sliders carries an arm 17 and 18 extending for example in one direction Y perpendicular to the X direction, with height adjustment 17 ', 18' according to Z (perpendicular to X and Y).
- Each arm has a housing 19 and 20 allowing to receive an axis of rotation 21 and 22 of a workpiece carrier 23 carrying the part 1 whose surface 6 must be subjected to finishing polishing.
- Tool 4 is disposed on a support 15 integral with a table 27 having means for translation of the tool 4 and therefore the felt 2 in the direction Y perpendicular to the direction X.
- These translation means are for example slides 26.
- the polishing speeds in each of the X and Y directions can be chosen for example between 0.05 m / s and 0.5 m / s.
- Figures 3a and 3b on the one hand and 4a and 4b on the other hand illustrate two modes of implementation of finishing polishing (after hardening of the support of deformable material for example pitch or glue).
- the displacement along X (for example between 5 and 200 mm) allows a polishing parallel to the direction of the generatrices of the surface, whereas the translation movement along Y (for example between 1 and 100 mm) and the rotation along the axis (21, 22) allows the surface 6 to be polished to follow while rotating the polishing element 2 as it moves along Y.
- the combination of these three movements ensures the polishing of the surface on its contour and on all its length.
- the part 1 of cylindrical section or plane is carried by the workpiece holder 23 and the tool 4 is secured to the support 25.
- the cylindrical or plane part 1 is integral with the support 25 and it is the tool 4 which is carried by the holder 23.
- the method also applies to surfaces presenting no generator.
- the formatting of element 2 improves the performance relative to the surface with the nearest generator.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
- Polishing Bodies And Polishing Tools (AREA)
- Mechanical Treatment Of Semiconductor (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
Description
- les figures 1a et 1b illustrent en coupe la mise en oeuvre du procédé de polissage de finition selon l'invention,
- la figure 2 représente une machine assurant le polissage de finition d'une surface dans le cadre de la présente invention et les figures 3a et 3b d'une part et 4a et 4b d'autre part illustrent deux modes de mise en oeuvre de la machine.
Claims (13)
- Procédé de polissage de finition d'une surface à l'aide d'un élément de polissage et d'un abrasif, caractérisé en ce qu'il met en oeuvre :a) avant ledit polissage, le collage de l'élément de polissage sur un support en un matériau déformable de manière permanente et ;b) l'application d'une pression sur le support déformable une fois que l'élément de polissage est en contact avec la surface à polir de sorte que l'élément de polissage soit mis en forme pour épouser un contour de ladite surface.c) réalisation du polissage de finition à l'aide de l'élément de polissage ainsi mis en forme.
- Procédé selon la revendication 1, caractérisé en ce que ledit matériau est déformable par fluage et/ou durcissable.
- Procédé selon la revendication 2, caractérisé en ce que ledit matériau est de la poix qui est chauffée à une température permettant son fluage et qui après mise en forme de l'élément de polissage est ensuite refroidie pour obtenir un durcissement.
- Procédé selon la revendication 2, caractérisé en ce que ledit matériau est une colle de type gel qui après mise en forme de l'élément de polissage est durcie par exemple par polymérisation ou application d'un rayonnement, notamment ultra-violet.
- Procédé selon la revendication 2 caractérisé en ce que le matériau est du plâtre.
- Procédé selon une des revendications précédentes, caractérisé en ce que l'élément de polissage est un feutre.
- Procédé selon une des revendications précédentes, caractérisé en ce que ledit matériau déformable est porté par un support de polissage.
- Procédé selon une des revendications précédentes, caractérisé en ce que le polissage de finition est réalisé à l'aide d'une machine comportant un dispositif de déplacement assurant un mouvement relatif entre l'élément de polissage et la surface à polir selon deux directions perpendiculaires.
- Procédé selon la revendication 8, caractérisé en ce que le dispositif de déplacement est agencé pour produire également un mouvement de rotation relatif autour d'un axe parallèle à l'une desdites deux directions perpendiculaires.
- Procédé selon une des revendications 8 ou 9, caractérisé en ce que la surface présente une génératrice dont la direction est parallèle à l'une desdites deux directions perpendiculaires.
- Procédé caractérisé en ce que la surface sur laquelle le polissage de finition est réalisé a été préalablement soumise à :un pré-polissage ou polissage grossierun polissage.
- Procédé selon la revendication 11 caractérisé en ce qu'après polissage, la surface présente une rugosité entre 3Å et 15Å et après polissage de finition, une rugosité entre 1Å et 5Å.
- Procédé selon la revendication 12, caractérisé en ce que ladite rugosité après polissage de finition est comprise entre 1Å et 3Å pour les surfaces en verre, en silice, en silicium et en céramique, et entre 3Å et 5Å pour une surface en nickel revêtant une surface métallique.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT03292647T ATE322957T1 (de) | 2003-10-23 | 2003-10-23 | Verfahren zum abschliessenden polieren |
| EP03292647A EP1525947B1 (fr) | 2003-10-23 | 2003-10-23 | Procédé de polissage de finition |
| DE60304579T DE60304579T2 (de) | 2003-10-23 | 2003-10-23 | Verfahren zum abschliessenden Polieren |
| DK03292647T DK1525947T3 (da) | 2003-10-23 | 2003-10-23 | Fremgangsmåde ved slutpolering |
| ES03292647T ES2262958T3 (es) | 2003-10-23 | 2003-10-23 | Procedimiento de pulido de acabado. |
| US10/705,017 US20050101226A1 (en) | 2003-10-23 | 2003-11-11 | Finishing polishing method |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP03292647A EP1525947B1 (fr) | 2003-10-23 | 2003-10-23 | Procédé de polissage de finition |
| US10/705,017 US20050101226A1 (en) | 2003-10-23 | 2003-11-11 | Finishing polishing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1525947A1 true EP1525947A1 (fr) | 2005-04-27 |
| EP1525947B1 EP1525947B1 (fr) | 2006-04-12 |
Family
ID=34712591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP03292647A Expired - Lifetime EP1525947B1 (fr) | 2003-10-23 | 2003-10-23 | Procédé de polissage de finition |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20050101226A1 (fr) |
| EP (1) | EP1525947B1 (fr) |
| AT (1) | ATE322957T1 (fr) |
| DE (1) | DE60304579T2 (fr) |
| DK (1) | DK1525947T3 (fr) |
| ES (1) | ES2262958T3 (fr) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109079646A (zh) * | 2018-08-10 | 2018-12-25 | 杨斯晨 | 一种陶瓷加工用釉面抛光装置 |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7988534B1 (en) * | 2004-05-19 | 2011-08-02 | Sutton Stephen P | Optical polishing pitch formulations |
| DE102008043600A1 (de) * | 2008-11-10 | 2010-05-12 | Carl Zeiss Smt Ag | Glättungswerkzeug und Verfahren zum Glätten einer optischen Oberfläche |
| TWI584914B (zh) | 2013-07-22 | 2017-06-01 | 佳能股份有限公司 | 元件製造方法及拋光裝置 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3801969A1 (de) * | 1988-01-23 | 1989-07-27 | Zeiss Carl Fa | Verfahren und vorrichtung zum laeppen bzw. polieren optischer flaechen |
| US20020102925A1 (en) * | 2001-01-30 | 2002-08-01 | Wess Colin H. | Surface polishing method and apparatus |
| FR2843711A1 (fr) * | 2002-08-22 | 2004-02-27 | Europ De Systemes Optiques Soc | Procede de polissage de finition |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1651181A (en) * | 1924-12-06 | 1927-11-29 | Continental Optical Corp | Tool for treating ophthalmic lenses and process of making same |
| US2822647A (en) * | 1955-12-16 | 1958-02-11 | Younger Mfg Company | Method and apparatus for forming bifocal lenses |
| US3583111A (en) * | 1966-08-22 | 1971-06-08 | David Volk | Lens grinding apparatus |
| US3594963A (en) * | 1969-07-17 | 1971-07-27 | Univis Inc | Grinding pad |
| US4979337A (en) * | 1986-10-03 | 1990-12-25 | Duppstadt Arthur G | Polishing tool for contact lenses and associated method |
| US4989316A (en) * | 1987-03-09 | 1991-02-05 | Gerber Scientific Products, Inc. | Method and apparatus for making prescription eyeglass lenses |
| US4974368A (en) * | 1987-03-19 | 1990-12-04 | Canon Kabushiki Kaisha | Polishing apparatus |
| DE3911986A1 (de) * | 1989-04-12 | 1990-10-18 | Benzinger Carl Gmbh & Co | Verfahren und vorrichtung zur formgebenden bearbeitung von werkstuecken |
| US5205083A (en) * | 1991-10-24 | 1993-04-27 | Pettibone Dennis R | Method and apparatus for polishing optical lenses |
| DE4442181C1 (de) * | 1994-11-26 | 1995-10-26 | Loh Optikmaschinen Ag | Werkzeug zur Feinbearbeitung optischer Flächen |
| KR20020036789A (ko) * | 1999-06-25 | 2002-05-16 | 알프레드 엘. 미첼슨 | 세륨 옥사이드를 이용한 마이크로리소그라피용 플로라이드결정 광학 렌즈 및 예형의 연마방법 |
| AU2473601A (en) * | 2000-01-05 | 2001-07-16 | Schott Glass Technologies, Inc. | Glass substrates for magnetic media and magnetic media based on such glass substrates |
-
2003
- 2003-10-23 DK DK03292647T patent/DK1525947T3/da active
- 2003-10-23 ES ES03292647T patent/ES2262958T3/es not_active Expired - Lifetime
- 2003-10-23 EP EP03292647A patent/EP1525947B1/fr not_active Expired - Lifetime
- 2003-10-23 AT AT03292647T patent/ATE322957T1/de not_active IP Right Cessation
- 2003-10-23 DE DE60304579T patent/DE60304579T2/de not_active Expired - Lifetime
- 2003-11-11 US US10/705,017 patent/US20050101226A1/en not_active Abandoned
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3801969A1 (de) * | 1988-01-23 | 1989-07-27 | Zeiss Carl Fa | Verfahren und vorrichtung zum laeppen bzw. polieren optischer flaechen |
| US20020102925A1 (en) * | 2001-01-30 | 2002-08-01 | Wess Colin H. | Surface polishing method and apparatus |
| FR2843711A1 (fr) * | 2002-08-22 | 2004-02-27 | Europ De Systemes Optiques Soc | Procede de polissage de finition |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109079646A (zh) * | 2018-08-10 | 2018-12-25 | 杨斯晨 | 一种陶瓷加工用釉面抛光装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| ATE322957T1 (de) | 2006-04-15 |
| DE60304579T2 (de) | 2007-05-10 |
| US20050101226A1 (en) | 2005-05-12 |
| DK1525947T3 (da) | 2006-07-31 |
| EP1525947B1 (fr) | 2006-04-12 |
| ES2262958T3 (es) | 2006-12-01 |
| DE60304579D1 (de) | 2006-05-24 |
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