JP2022165970A5

JP2022165970A5 -

Info

Publication number: JP2022165970A5
Application number: JP2022112551A
Authority: JP
Filing date: 2022-07-13
Publication date: 2023-09-04

Description

本発明は、金属部品の製造方法であって、
金属板の第１面をエッチングして前記金属板に凹部を形成し、前記金属板の厚さ方向において金属部品の一部を形成する第１のエッチング工程と、
前記第１面に保護層を貼付する工程と、
前記保護層が貼付された前記金属板の前記第１面と反対側の第２面をエッチングして前記金属板に凹部を形成し、前記金属板の厚さ方向において前記金属部品の残り部分を形成する第２のエッチング工程とを含む。
本発明はまた、金属部品の製造方法であって、
金属板の第１面をエッチングして前記金属板に凹部を形成し、前記金属板の厚さ方向において金属部品の一部を形成する第１のエッチング工程と、
前記第１面に保護層を貼付する工程と、
前記保護層が貼付された前記金属板の前記第１面と反対側の第２面をエッチングして前記金属板に凹部を形成し、前記金属板の厚さ方向において前記金属部品の残り部分を形成する第２のエッチング工程と、
を含み、
前記第１のエッチング工程で形成される前記凹部には、前記金属部品の輪郭よりも内側の前記金属部品の表面の模様を形成する凹部が含まれる。
The present invention is a method for manufacturing a metal part, comprising:
a first etching step of etching a first surface of a metal plate to form a recess in the metal plate to form a portion of the metal component in the thickness direction of the metal plate;
affixing a protective layer to the first surface;
Etching a second surface opposite to the first surface of the metal plate to which the protective layer is attached to form a recess in the metal plate, and removing the remaining portion of the metal component in the thickness direction of the metal plate. and a second etching step of forming.
The present invention also provides a method of manufacturing a metal part, comprising:
a first etching step of etching a first surface of a metal plate to form a recess in the metal plate to form a portion of the metal component in the thickness direction of the metal plate;
affixing a protective layer to the first surface;
Etching a second surface opposite to the first surface of the metal plate to which the protective layer is attached to form a recess in the metal plate, and removing the remaining portion of the metal component in the thickness direction of the metal plate. a second etching step to form;
including
The recesses formed in the first etching step include recesses forming a pattern on the surface of the metal part inside the outline of the metal part.

図１Ａの説明に戻り、続くＳ１０２では第１面に保護層として粘着フィルムを貼付する。この粘着フィルムは、第2面をエッチングする際に第１面が侵食されないようにするための保護層であって、エッチング処理によって浸食されない耐酸性のフィルムを用いることができる。耐酸性フィルムは、例えば０．４ｍｍの厚さを有し、粘着層とＰＥＴ基材で形成され、粘着層により第1面とＰＥＴ基材とが結合されて、第１面がその後に行われるエッチング処理から保護される。ここで、図２（Ｃ）は、金属板２００をひっくり返して粘着フィルム２０２が第１面に結合された様子を示している。
Returning to the description of FIG. 1A, in subsequent S102, an adhesive film is attached as a protective layer to the first surface. This adhesive film is a protective layer for preventing the first surface from being eroded when the second surface is etched, and an acid-resistant film that is not eroded by the etching process can be used. The acid-resistant film has a thickness of, for example, 0.4 mm, and is formed of an adhesive layer and a PET substrate, the first surface and the PET substrate are bonded by the adhesive layer, and then the first surface is Protected from etching processes. Here, FIG. 2( C ) shows that the metal plate 200 is turned over and the adhesive film 202 is attached to the first surface.

図１Ａの説明に戻り、続くＳ１０３では金属板の第1面の反対側の（裏面の）第２面に対して、金属板の厚さ方向において金属部品の残り部分を形成するようにエッチング処理を行う。これにより、図２（Ｄ）に示すように、Ｓ１０１で形成された凹部２０１の一部と接続するように形成された凹部により、金属部品の輪郭に相当する部分が貫通して貫通孔２０３が形成され、金属部品が完成するようにエッチング処理が行われる。貫通孔２０３により囲まれる領域が金属部品２０４を構成する。Ｓ１０３で形成された凹部と接続された上記一部以外の凹部２０１は、金属部品２０４の第１面において模様等を形成する。第２面のエッチング処理により、各金属部品２０４は、金属板２００から切り離されることになるが、事前に粘着フィルム２０２が第１面に貼付されているので、各金属部品２０４は金属板２００から分離、或いは、離脱することなく一体的に保持される。 Returning to the description of FIG. 1A, in subsequent S103, the second surface (back surface) of the metal plate opposite to the first surface is etched so as to form the remainder of the metal part in the thickness direction of the metal plate. I do. As a result, as shown in FIG. 2( D ), a portion corresponding to the outline of the metal component penetrates through the recess formed so as to connect with a part of the recess 201 formed in S101, and a through hole 203 is formed. It is formed and etched to complete the metal part. A region surrounded by the through hole 203 constitutes the metal part 204 . The recesses 201 other than the part connected to the recesses formed in S103 form a pattern or the like on the first surface of the metal component 204 . Each metal component 204 is separated from the metal plate 200 by etching the second surface. It is held integrally without separation or detachment.

Claims

a first etching step of etching a first surface of a metal plate to form a recess in the metal plate to form a portion of the metal component in the thickness direction of the metal plate;
affixing a protective layer to the first surface;
Etching a second surface opposite to the first surface of the metal plate to which the protective layer is attached to form a recess in the metal plate, and removing the remaining portion of the metal component in the thickness direction of the metal plate. a second etching step to form;
including
The method of manufacturing a metal component, wherein the recess formed in the first etching step includes a recess forming a surface pattern of the metal component inside an outline of the metal component.

In the second etching step, a through hole that forms the outline of the metal component is formed by forming a recess that connects with a part of the recess formed in the first etching step,
2. The manufacturing method according to claim 1, wherein said metal component is configured to be separable from said metal plate by said through hole.

3. The manufacturing method according to claim 2 , wherein in said second etching step, only recesses forming said through holes are formed.

3. The manufacturing method according to claim 1 , wherein identification information for identifying said metal component is further formed in said second etching step.

5. The manufacturing method according to any one of claims 1 to 4 , wherein the metal part has an appearance representing a pattern, number, figure, character, animal, or plant.

6. The manufacturing method according to any one of claims 1 to 5 , further comprising the step of coloring said first surface after said first etching step and before said step of attaching said protective layer. .

After the second etching step, a step of attaching a release layer to the metal component on the second surface,
forming an adhesive layer on the metal component on the second surface;
a step of attaching the release layer to the metal part via the adhesive layer on the second surface;
7. The manufacturing method according to any one of claims 1 to 6 , further comprising a step comprising

8. The manufacturing method according to claim 7 , wherein the adhesive strength of the protective layer to the first surface is weaker than the adhesive strength of the adhesive layer to the second surface.

a metal sheet,
contains metal parts,
The metal part has a concave portion forming a pattern inside the outline of the metal part on the first surface side of the metal sheet,
The first surfaces of the metal sheet and the metal component are covered with a protective layer,
A metal sheet, wherein a release layer is attached to the metal component via an adhesive on a second surface side opposite to the first surface of the metal sheet.

10. The metal sheet of claim 9, wherein the metal component forms a coplanar plane with the metal sheet.

11. The metal sheet according to claim 9 or 10, wherein said metal part is made of the same material as said metal sheet.

The metal sheet according to any one of claims 9 to 11 , wherein the adhesive strength of the protective layer to the first surface is weaker than the adhesive strength of the adhesive.