EP1269109A1 - Procede et appareil permettant de produire un etat de surface - Google Patents

Procede et appareil permettant de produire un etat de surface

Info

Publication number
EP1269109A1
EP1269109A1 EP01918063A EP01918063A EP1269109A1 EP 1269109 A1 EP1269109 A1 EP 1269109A1 EP 01918063 A EP01918063 A EP 01918063A EP 01918063 A EP01918063 A EP 01918063A EP 1269109 A1 EP1269109 A1 EP 1269109A1
Authority
EP
European Patent Office
Prior art keywords
texture
layer
points
point
description
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.)
Withdrawn
Application number
EP01918063A
Other languages
German (de)
English (en)
Inventor
Bengt-Göran Rosen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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
Application filed by Individual filed Critical Individual
Publication of EP1269109A1 publication Critical patent/EP1269109A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/42—Recording and playback systems, i.e. in which the programme is recorded from a cycle of operations, e.g. the cycle of operations being manually controlled, after which this record is played back on the same machine
    • G05B19/4202—Recording and playback systems, i.e. in which the programme is recorded from a cycle of operations, e.g. the cycle of operations being manually controlled, after which this record is played back on the same machine preparation of the programme medium using a drawing, a model
    • G05B19/4205—Recording and playback systems, i.e. in which the programme is recorded from a cycle of operations, e.g. the cycle of operations being manually controlled, after which this record is played back on the same machine preparation of the programme medium using a drawing, a model in which a drawing is traced or scanned and corresponding data recorded
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/35—Nc in input of data, input till input file format
    • G05B2219/35485—Library of images, pictures, select and modify each, compose them
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/37—Measurements
    • G05B2219/37047—After digitizing, edit graphically data
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/37—Measurements
    • G05B2219/37363—Texture
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/50—Machine tool, machine tool null till machine tool work handling
    • G05B2219/50212—Giving a texture, structure to surface, like leather, wood appearance

Definitions

  • the present invention relates to a method of producing a surface texture.
  • the surface of objects made from organic materials for example from leather or wood, often produces a unique sensation to the touch or the eye. Largely, this is due to the topography and pattern of the surface, i.e. the surface texture.
  • the manufacturer In the manufacture of products of synthetic materials, such as plastics, the manufacturer often wishes to give his products surfaces possessing properties that either resemble those of natural materials or that impart to the products a particular functional quality, such as an improved or more comfortable grip.
  • the compression-moulding tools are given a texture that is reproduced in the finished product.
  • a model of a soft material, such as clay is made initially. Thereafter, the model is used to cast a product or a tool.
  • German Patent Specification DE 19 818 367 describes the use of a control signal for the manufacture of a leather-like surface on a product.
  • the control signal is composed in a computer from two different signals, one of which creates a cellular structure and the second one of which creates a coarser linear pattern, independently of the first one.
  • the computer by itself creates the control signal from an algorithm, only limited possibilities exist to control the result, i.e. to create individual surface structures in addition to those created by the algorithm.
  • US 4 972 323 discloses a method according to which a picture is used as a pattern that is to be cut into a surface.
  • a video camera is used to read the picture and enter it into a computer, the latter then using the grey-scale information of the digitalised picture to extract the picture outlines from such information.
  • the extracted outlines are then cut into a surface by means of a milling cutter, a laser, a spark cutting machine or the like.
  • Each one of the above methods basically only creates artificial surface patterns that are cut, etched or in some other ways machined into the surface to a constant depth.
  • One consequence of these methods is that the nature-like appearance and the quality of the texture thus produced are unsatisfactory. To obtain a more natural and life-like surface a three-dimensional texture is required.
  • Patent Specification FR 2 659 760 describes a method of producing a three-dimensional surface texture based on a scanned picture. The method is intended for use in conjunction with the manufacture of stamps used to produce watermarks on paper. A drawing or a photo is scanned and the grey-scale information is then used to build up a three-dimensional picture. The deeper the impression in the paper, the darker the shade of the watermark.
  • FR 2 659 760 is that the texture it produces is based on a scanned picture or drawing.
  • the grey-scale information, forming the basis of the texture produced largely depends on the direction of the source of light towards the object of the picture.
  • the angle of reproduction is of considerable importance to the contents of the scanned texture description. If this method were to be used to impart a particular surface texture to products the result would be that the texture thus produced would depend largely on the conditions prevailing in the course of reproducing the existing structure.
  • Another problem is that then one and the same texture could be described in different ways.
  • anyone having only these descriptions at his disposal would experience difficulties in determining whether they actually describe the same texture.
  • industrial manufacturers traditionally rely on reference objects and visual assessments of the finished results.
  • the object of the invention is to provide a method allowing a description of texture to be created based on the texture of an existing surface, and a new texture to be produced based on that description. This object is obtained by means of a method defined in the appended claims .
  • the invention offers numeral advantages, some of which will be mentioned herein.
  • the invention makes it possible to create an unambiguous description of texture for the specification, manufacture and quality control of a texture.
  • the invention likewise makes it easier to introduce new textures for various products and to visualise them in a computer environment.
  • Fig 1 is a view of a device for measuring, storing and producing textures
  • Fig 3 illustrates the layered structure of a texture description
  • Fig 4 illustrates a distributed method in accordance with the invention
  • Fig 5 illustrates how two texture descriptions may be united to form one new texture description
  • Fig 6 illustrates possible changes of the visual impression of a surface.
  • the method in accordance with the invention is designed to measure the texture of an existing surface 1, to store the texture data in a library of textures and to generate a control signal which is forwarded to a machining apparatus 8 devised to create a new texture 7.
  • the texture of an existing surface 1 is measured by means of a surface-topography measuring instrument 2, such as a sliding-needle meter or a white-light interferometer.
  • the measurements are taken so as to ensure that the surface will be represented by a large number of points in some kind of coordinate system, and preferably the number of points, i.e. the accuracy of detail, is determined by the user.
  • a suitable system of coordinates is the Cartesian coordinates, wherein the X and Y axes define the location of a point in the plane of the surface and the Z axis the vertical height of the measuring point.
  • the number of measuring points is determined by the user.
  • the measuring instrument 2 is coupled to a processing unit, which could be a computer 3.
  • the routines of the computer preferably are software-implemented.
  • the software enables the user to machine the scanned texture.
  • the description could, for example, be scaled laterally and vertically to increase or reduce the spacing between the points. It is likewise possible to increase or reduce the number of points by means of linear or spline interpolation .
  • By changing the relation between the heights of the points it becomes possible to alter both the sensual feel upon touch and the visual impression, as is exemplified in Fig 6. For instance, it is possible to reduce the relative heights of the points to thus produce a smoother surface.
  • the computer 3 preferably also contains software that is able to adapt the scanned texture in a manner making it possible to create a larger pattern by placing several descriptions 4 in adjoining relationship without the borders 5 being visible, so called stitching, as shown in Fig 2.
  • the stitching method involves some adaptation of those edges of the scanned texture that form the borders 5 adjoining similarly scanned textures 4. Such adaptation could for instance be levelling of the point heights in the border areas to heights approaching the heights of the neighbouring points. Alternatively, the area surrounding each point could also be adapted such that the slope of a surface continues across the borders 5 between the textured elements 4.
  • Such a stitched texture description need not necessarily be rectangular but triangular or hexagonal shapes are equally possible.
  • the texture description may be stored in a library of textures in a standardised size.
  • To store a number of textures in a library offers several advantages.
  • a library containing different texture descriptions, stored in the same size, makes it easier to introduce new textures intended for products, to visualise and to choose between different textures and to exchange texture descriptions between different systems.
  • the software also allows different visualisations of the measured textures or the stored texture descriptions to be made.
  • the stored texture descriptions may be retrieved from the library of textures.
  • a preview of the appearance of the future texture 7 to be produced may be displayed on a screen 6, which is coupled to the computer
  • a preferred visualisation is a three-dimensional representation of the texture as seen in a perspective view.
  • the machining operations being performed on the scanned texture can then also be shown on the screen 6.
  • a number of different modifications or different texture descriptions may be shown simultaneously.
  • the textures may be viewed from different angles, in different light settings, different colours and in lights of different intensity.
  • an optional cross-sectional view of the topography of the surface may be shown.
  • two or more texture descriptions may be retrieved from the library of textures to be combined into one novel texture, as shown in Fig 5.
  • novel textures By constructing novel textures from two or several texture descriptions it becomes possible to create surfaces having novel and preferably unique textures not found in existing materials.
  • functional qualities of one surface For example, a wavy and glossy surface may be combined with a flat and rough surface in order to produce a wavy and rough surface.
  • texture It may sometimes be desired to subject the texture to adaptive measures before the textures are combined. For example, if the amounts of points for a predetermined surface area differ, it may be necessary to increase or reduced the amount of points of one or both texture descriptions.
  • the textures may be combined in a variety of different ways, the combination being effected by means of a mathematical operation, such as addition, subtraction, multiplication, maximum, minimum, and so forth. It is then possible to store the combined structure as a novel texture in the library of textures . From the computer 3, a texture description may also be exported to a CAD programme. In the CAD programme, the texture may then be applied on a product. It is likewise possible to illustrate or distribute a texture description either as a computer file or as a graphic representation via a network, such as the Internet, to a client, which could be a web-browser.
  • the customer for example or an independent institute could check the quality of the manufactured texture and compare it with the texture description in the library of textures.
  • a customer sends a measured texture to another actor in the network.
  • the customer could instead choose a texture straight from a library of already measured textures on e.g. the actor's home page on the Internet.
  • a log- in method may be used, for instance in the form of an extranet .
  • the computer 3 generates the control signal that is transmitted to the machining equipment 8.
  • the control signal is generated in that the measured and processed amount of points alternatively a texture description from the library of textures is layered in a number of layers 9 as shown schematically in Fig 3.
  • the layers 9 extend in parallel with the plane 10 of the surface and the uppermost layer is level with or extends above the highest point of the texture and the lowermost layer is below or level with the lowermost point of the texture. In any one layer 9 some points 11 therefore will be positioned above the layer and some points 12 below the layer 9. If layer 9 is compared to the sea level, some points 11 will form islands extending above the sea level and some points 12 will be located below the sea level.
  • each point 11 the height of which exceeds the height of the layer will have one value whereas other points 12 will have another value, which values could be for example 0 and 1, respectively.
  • Other ways may exist to ascribe values to the points, for example a scale comprising more steps than 0 and 1 may be used. Still the values 0 and 1 could be reversed, such that the points the height of which exceeds the height of the layer could be ascribed the value 0 and vice versa.
  • the control signal produced as indicated above, i.e. containing data on the point heights relative to the heights of the different layers, is then transmitted to a machining apparatus 8.
  • the apparatus 8 machines a surface
  • the areas to be removed could simply be exchanged for those that are masked. It is likewise possible to export a picture of each layer wherein the different areas are represented by black and white fields, respectively.
  • a novel texture 7 has been produced, it preferably is subjected to a quality check. Most simply, this is effected by measuring the produced texture by using the same measuring equipment 2 as the one above. The produced texture 7 is then compared either with a measured texture 1 or with a texture from the library.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Numerical Control (AREA)
  • Laser Beam Processing (AREA)

Abstract

L'invention concerne un procédé permettant de produire une texture sur une surface (7). Selon ce procédé, un signal de commande contenant une description de texture est transmis à un équipement d'usinage (8). L'équipement d'usinage (8) créée ensuite une texture en 3D sur une surface (7). La description de texture du signal de commande est produite par la mesure d'une surface existante (1) ayant une texture prédéterminée. Le plan (10) de la surface est mesuré de façon à être représenté par plusieurs points, chaque point (11, 12) ayant une hauteur par rapport au plan (10) de la surface.
EP01918063A 2000-03-24 2001-03-26 Procede et appareil permettant de produire un etat de surface Withdrawn EP1269109A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE0001042 2000-03-24
SE0001042A SE0001042D0 (sv) 2000-03-24 2000-03-24 Förfarande för framställande av en textur på en yta
PCT/SE2001/000643 WO2001073372A1 (fr) 2000-03-24 2001-03-26 Procede et appareil permettant de produire un etat de surface

Publications (1)

Publication Number Publication Date
EP1269109A1 true EP1269109A1 (fr) 2003-01-02

Family

ID=20278994

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01918063A Withdrawn EP1269109A1 (fr) 2000-03-24 2001-03-26 Procede et appareil permettant de produire un etat de surface

Country Status (4)

Country Link
EP (1) EP1269109A1 (fr)
AU (1) AU2001244933A1 (fr)
SE (1) SE0001042D0 (fr)
WO (1) WO2001073372A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1682956A1 (fr) * 2003-10-15 2006-07-26 Metris N.V. Procede, dispositif et programme informatique pour evaluer un objet en utilisant une representation virtuelle dudit objet
ES2552211T3 (es) * 2012-06-26 2015-11-26 Hueck Rheinische Gmbh Procedimiento para la producción de una estructura de superficie con un dispositivo de chorro de agua

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3677136A (en) * 1969-12-29 1972-07-18 Angelo Girola Master for machine tools, particularly for milling machines, to remove metal by level layers
US3684873A (en) * 1970-09-23 1972-08-15 Jurgen Meyer Method and apparatus for adaptive programmed control of a turning machine tool
CA1282142C (fr) * 1986-10-21 1991-03-26 Sony Corporation Methode de generation de donnees de surfaces de decalage
FR2608797B1 (fr) * 1986-12-23 1989-04-28 Cauwet Claude Perfectionnements aux procedes de gravure automatique
DE8816754U1 (de) * 1988-02-16 1990-07-05 Dr. Johannes Heidenhain Gmbh, 8225 Traunreut Nachformanordnung
DE3817454A1 (de) * 1988-05-21 1989-11-30 Heidenhain Gmbh Dr Johannes Digitalisier-verfahren und -anordnung
US5116174A (en) * 1989-11-13 1992-05-26 Kenneth Fried Method and apparatus for manufacturing jewelry, and an article of jewelry made thereby
FR2659760B1 (fr) * 1990-03-13 1993-01-22 Arjomari Prioux Procede de fabrication d'un poincon pour emboutir, par exemple des toiles en vue de former des filigranes et dispositif pour la mise en óoeuvre de ce procede.
US5454422A (en) * 1992-10-29 1995-10-03 Kitagawa Kogyo Co., Ltd. Woodworking machines
US5432704A (en) * 1993-11-23 1995-07-11 Clemson University Adaptive lamina generation for shape dependent process control and/or object decomposition
GB2296788B (en) * 1995-11-28 1997-03-12 Stonemate Ltd Method and apparatus for image transfer
DE19618367A1 (de) * 1996-05-08 1997-11-13 Benecke Kaliko Ag Verfahren zur Erzeugung eines elektrischen Steuersignals für eine Vorrichtung zur Erzeugung einer Tiefenstruktur in einer Werkzeugoberfläche

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0173372A1 *

Also Published As

Publication number Publication date
SE0001042D0 (sv) 2000-03-24
WO2001073372A1 (fr) 2001-10-04
AU2001244933A1 (en) 2001-10-08

Similar Documents

Publication Publication Date Title
Delfs et al. Optimized build orientation of additive manufactured parts for improved surface quality and build time
US5703782A (en) Method and system for producing 3-D carred signs using automatic tool path generation and computer-simulation techniques
US5197013A (en) Method of forming a carved sign using an axially rotating carving tool
US20060008774A1 (en) Method of producing a dental prosthetic item
US20030191554A1 (en) Method and system for the generation of a computer model
WO2006051261A1 (fr) Procede et appareil pour simuler des effets d’impression appliques sur un objet
US20210178805A1 (en) Surface covering production method using digital printing
US20130150994A1 (en) Method of carving three-dimensional artwork
JP4871392B2 (ja) ３次元構造化表面を生成するための方法
US6879874B2 (en) Evaluating excessive tolerances in NC parts programs
CN104249221A (zh) 激光加工模具表面的方法
CN104380075A (zh) 用于辊式试验台的公路路面元件
US20100036520A1 (en) Method of carving three-dimensional artwork
JPH0782373B2 (ja) 三次元物体の表示方法
US20080269933A1 (en) Method for surface-based machining of decorative articles
US6956567B2 (en) Differential visualization of countoured surfaces
WO2001073372A1 (fr) Procede et appareil permettant de produire un etat de surface
CA2743376A1 (fr) Fabrication de modeles tridimensionnels a echelle topographique
Stanić et al. Color and permanence issues in 3D ink-jet printing
US20140361453A1 (en) Method and apparatus for appreciating artwork
CA2449633C (fr) Fabrication de modeles tridimensionnels a echelle topographique a des fins scientifiques
US20070106417A1 (en) Method of carving three-dimensional artwork
JP4229270B2 (ja) ２次元データを用いて印刷物をシミュレーションする方法及びその装置
CN110245962A (zh) 一种产品的防伪方法
Huson Digital fabrication techniques in art/craft and designer/maker ceramics

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20020914

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20061003