WO1999028535A1 - Procede de gravure - Google Patents

Procede de gravure Download PDF

Info

Publication number
WO1999028535A1
WO1999028535A1 PCT/GB1998/003055 GB9803055W WO9928535A1 WO 1999028535 A1 WO1999028535 A1 WO 1999028535A1 GB 9803055 W GB9803055 W GB 9803055W WO 9928535 A1 WO9928535 A1 WO 9928535A1
Authority
WO
WIPO (PCT)
Prior art keywords
substrate
cut
pattern
etching
tool
Prior art date
Application number
PCT/GB1998/003055
Other languages
English (en)
Inventor
Nigel Brooke
Original Assignee
Gravutex Eschmann International Limited
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from GBGB9725102.9A external-priority patent/GB9725102D0/en
Priority claimed from GBGB9802017.5A external-priority patent/GB9802017D0/en
Application filed by Gravutex Eschmann International Limited filed Critical Gravutex Eschmann International Limited
Priority to AU93611/98A priority Critical patent/AU9361198A/en
Publication of WO1999028535A1 publication Critical patent/WO1999028535A1/fr

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F1/00—Etching metallic material by chemical means
    • C23F1/02—Local etching

Definitions

  • This invention relates to methods for etching a substrate, with particular, but by no means exclusive, reference to the etching of moulds, especially moulds for components of automobiles and the plastics industry in general.
  • moulded components of automobiles which are desirably moulded with some form of pattern theron, which pattern might comprise lettering, graphics, geometric patterns, grain effects or texturing. Examples of such components include handles and dashboards.
  • the pattern is produced by appropriate etching of the mould parts.
  • One commonly used method of etching involves the use of photolithographic techniques to produce a photomask.
  • the technique is laborious and cannot easily be applied to non-planar surfaces.
  • flaws in the pattern are often apparent, caused by imperfections which allow the etchant to seep in.
  • the present invention overcomes the above problems and provides a method for etching which is flexible, convenient, accurate and easily applicable to non- planar surfaces such as curved surfaces.
  • a method for etching a predetermined pattern onto a substrate comprising the steps of:
  • the pattern can comprise, for example, lettering, graining, texturing or graphical representations.
  • the substrate may comprise a mould part, which part may be for moulding a component of an automobile.
  • the substrate may comprise a tool.
  • Information relating to the tool maker may be etched onto the tool.
  • the substrate may be fabricated from steel.
  • the cutting may be controlled by a computer, and the cut-out pattern may be produced on a CAD design system.
  • the etch resistant material may be a plastic, which may be a vinyl plastic.
  • the cut-out pattern may be adhered to the substrate by a low tack film.
  • the invention also comprises a substrate etched by the above described method.
  • Figure 1 is a cross-sectional view of a cut-out pattern adhered to a substrate.
  • Figure 2 is a face on view of a cut-out pattern for use on a highly curved substrate.
  • the cutting of the cut-out pattern is preferably and conveniently performed using a commerically available cutter plotter device (an example being a Mimaki CG-61 cutter plotter) which operates under computer control.
  • the entire package can be part of a CAD design system, offering enormous design flexibility. Further, essentially flawless patterns of great intricacy can be routinely produced.
  • the sheet of etch resistant material can be any suitable material, such as a vinyl plastic.
  • the vinyl is cut to the required cut-out pattern while on a wax release paper backing and can be separated therefrom by the application of another release, or simply by peeling off from the backing a matrix out of which "islands" have been cut, leaving "positive” and “negative” patterns corresonding to the desired pattern to be produced on the substrate.
  • FIG. 1 shows a cut-off pattern 10 adhered to a substrate 12 by a low tack film 14.
  • a cut-off pattern 10 adhered to a substrate 12 by a low tack film 14.
  • Such is suitable for use with steel substrates (usually primed before the application of the low tack film).
  • Other substrates are also within the scope of the invention. Correct alignment of the cut-off pattern with the substrate is easily accomplished and, in any case, adjustment of the positioning is readily performed.
  • the masked substrate is then etched, thereby providing the predeterminded pattern.
  • Any suitable etchant may be used, such as a ferric chloride solution in the case of a steel substrate.
  • the method is flexible, convenient and accurate, producing high quality patterns and preventing etchant from seeping underneath the masking cut-off pattern. Furthermore, it is advantageous that the method can be applied to non-planar surfaces due to the flexible nature of the sheet and, if used, the low tack film.
  • a distorted pattern such as the pattern 20 shown in Figure 2
  • streched appropriately to fit the substrate to compensate for the curvatures and yield a regular, well oriented pattern.
  • mould part An important example of a substrate is a mould part, which is frequently highly curved.
  • the invention is well suited to the production of mould parts for use in moulding a variety of components for the plastics industry in general, and for automobiles, many components of which, such as handles and dashboards, commonly have features such as raised texturing or knurling. Mould parts suitable for other purposes, for example in the production of a wide range of domestic goods, are also within the scope of the invention.
  • the tool can be a purpose built tool, made by a specialist tool-maker, in which instance the tool-maker's name and/or other details can be etched onto the tool.

Abstract

La présente invention concerne un procédé permettant la gravure d'un motif défini sur un substrat. Ce procédé consiste à découper une silhouette dans une feuille de matériau résistant à l'attaque chimique, puis à masquer le substrat en faisant coller la silhouette sur le substrat, et enfin à traiter par attaque chimique le substrat masqué de façon à produire le motif attendu.
PCT/GB1998/003055 1997-11-28 1998-10-09 Procede de gravure WO1999028535A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU93611/98A AU9361198A (en) 1997-11-28 1998-10-09 Etching methods

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GBGB9725102.9A GB9725102D0 (en) 1997-11-28 1997-11-28 Rapid texture prototyping
GB9725102.9 1997-11-28
GBGB9802017.5A GB9802017D0 (en) 1998-01-31 1998-01-31 Etching methods
GB9802017.5 1998-01-31

Publications (1)

Publication Number Publication Date
WO1999028535A1 true WO1999028535A1 (fr) 1999-06-10

Family

ID=26312669

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1998/003055 WO1999028535A1 (fr) 1997-11-28 1998-10-09 Procede de gravure

Country Status (2)

Country Link
AU (1) AU9361198A (fr)
WO (1) WO1999028535A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1826119A3 (fr) * 2006-02-24 2010-02-10 Goodrich Corporation Chauffage de protection composite contre le givre et son procédé de production
US7923668B2 (en) 2006-02-24 2011-04-12 Rohr, Inc. Acoustic nacelle inlet lip having composite construction and an integral electric ice protection heater disposed therein

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH335579A (fr) * 1956-02-18 1959-01-15 Turco Products Inc Procédé de fabrication d'un panneau métallique et panneau obtenu par ce procédé
FR1436466A (fr) * 1964-06-13 1966-04-22 Ibm Procédé de fabrication de caches
US3249478A (en) * 1961-07-26 1966-05-03 Chemical Milling Internat Corp Process for producing a bimetallic structure by etching
DD111936A1 (fr) * 1974-06-12 1975-03-12
US4155801A (en) * 1977-10-27 1979-05-22 Rohr Industries, Inc. Process for masking sheet metal for chemical milling
EP0179940A1 (fr) * 1984-10-31 1986-05-07 Grumman Aerospace Corporation Procédé automatisé de fraisage chimique
JPS62152561A (ja) * 1985-12-27 1987-07-07 Asahi Chem Ind Co Ltd 表面加工用マスク
EP0506959A1 (fr) * 1990-10-22 1992-10-07 Aicello Chemical Company Limited Procede de gravure avec masque a image, et film stratifie photosensible pour ledit masque
US5227009A (en) * 1992-03-10 1993-07-13 Nitto Denko Corporation Masking sheet and method of producing processed metal product

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH335579A (fr) * 1956-02-18 1959-01-15 Turco Products Inc Procédé de fabrication d'un panneau métallique et panneau obtenu par ce procédé
US3249478A (en) * 1961-07-26 1966-05-03 Chemical Milling Internat Corp Process for producing a bimetallic structure by etching
FR1436466A (fr) * 1964-06-13 1966-04-22 Ibm Procédé de fabrication de caches
DD111936A1 (fr) * 1974-06-12 1975-03-12
US4155801A (en) * 1977-10-27 1979-05-22 Rohr Industries, Inc. Process for masking sheet metal for chemical milling
EP0179940A1 (fr) * 1984-10-31 1986-05-07 Grumman Aerospace Corporation Procédé automatisé de fraisage chimique
JPS62152561A (ja) * 1985-12-27 1987-07-07 Asahi Chem Ind Co Ltd 表面加工用マスク
EP0506959A1 (fr) * 1990-10-22 1992-10-07 Aicello Chemical Company Limited Procede de gravure avec masque a image, et film stratifie photosensible pour ledit masque
US5227009A (en) * 1992-03-10 1993-07-13 Nitto Denko Corporation Masking sheet and method of producing processed metal product

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 011, no. 381 (C - 464) 12 December 1987 (1987-12-12) *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1826119A3 (fr) * 2006-02-24 2010-02-10 Goodrich Corporation Chauffage de protection composite contre le givre et son procédé de production
US7923668B2 (en) 2006-02-24 2011-04-12 Rohr, Inc. Acoustic nacelle inlet lip having composite construction and an integral electric ice protection heater disposed therein

Also Published As

Publication number Publication date
AU9361198A (en) 1999-06-16

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