Method of producing die, die, and interior component of vehicle

Patent metadata

Field	Value
Publication number	US-2017292201-A1
Application number	US-201715465025-A
Country	US
Kind code	A1
Filing date	Mar 21, 2017
Priority date	Apr 8, 2016
Publication date	Oct 12, 2017
Grant date	—

Abstract

A method of producing a die for forming an interior component of a vehicle includes: setting a temperature of a plating bath in a range from 25 to 40° C.; immersing at least a forming surface on a base for the die in the plating bath; and feeding a current to the base with a current density in a range from 20 to 80 A/dm 2 until a metal layer is formed on the forming surface.

First claim

1 . A method of producing a die for forming an interior component of a vehicle, the method comprising:
setting a temperature of a plating bath in a range from 25 to 40° C.; immersing at least a forming surface on a base for the die in a plating bath; and feeding a current to the forming surface with a current density in a range from 20 to 80 A/dm 2 until a metal layer is formed on the forming surface.

2 . The method according to claim 1 , further comprising etching a base surface of the base before immersing the forming surface in the plating bath, wherein the base surface is a base for the forming surface.

3 . The method according to claim 2 , wherein the etching uses an electroetching.

4 . The method according to claim 1 , further comprising sandblasting the base surface before immersing the forming surface in the plating bath.

5 . The method according to claim 3 , wherein
the etching includes: immersing at least the base surface in the plating bath; connecting the base surface in the plating bath to a positive terminal of a power source; and connecting an electrode in the plating bath to a negative terminal of the power source, and the feeding the current to the forming surface includes: connecting the forming surface in the plating bath to the negative terminal of the power source; and connecting the electrode in the plating bath to the positive terminal of the power source.

6 . The method according to claim 5 , further comprising:
applying an acid-resistant material to the base surface in a pattern corresponding to a pattern to be formed on a surface of the interior component of the vehicle before immersing the base surface in the plating bath; and immersing at least the base surface in an acid solution before immersing the base surface in the plating bath.

7 . A die for forming an interior component of a vehicle, the die comprising:
a base portion; a forming surface on the base portion for forming a pattern on a surface of the interior component; and a metal layer on the forming surface, the metal layer including grains with a mean grain size of 5 μm or smaller.

8 . The die according to claim 7 , wherein
the forming surface including: first recesses for forming an emboss pattern on the surface of the interior component; second recesses smaller than the first recesses; and third recesses smaller than the second recesses, the metal layer includes protrusions on a surface of the metal layer, and the protrusion are smaller than the third recesses.

9 . An interior component of a vehicle comprising:
a base portion; and a design surface formed on the base portion using the die according to claim 7 , the design surface including: first protrusions forming an emboss pattern; second protrusions smaller than the first protrusions; third protrusions smaller than the second protrusions; and recesses smaller than the third protrusions.

10 . The interior component according to claim 9 , wherein at least the design surface is made of black resin and formed by injection molding.

Assignees

• Toyota Boshoku Kk

Inventors

• Higuchi yasuhito

Classifications

• B60R13/0243

  Doors · CPC title

• C25D5/36 Primary

  of iron or steel · CPC title

• C25F3/06 Primary

  of iron or steel · CPC title

• C25D3/08

  Deposition of black chromium {, e.g. hexavalent chromium, CrVI} · CPC title

• C25D3/04

  of chromium · CPC title