Component for a motor vehicle, and method for producing a coated component from a magnesium material

Patent metadata

Field	Value
Publication number	US-10828670-B2
Application number	US-201816058074-A
Country	US
Kind code	B2
Filing date	Aug 8, 2018
Priority date	Aug 11, 2017
Publication date	Nov 10, 2020
Grant date	Nov 10, 2020

Abstract

A component (10) for a motor vehicle has a main body (12) produced from a magnesium material. The main body (12) has a visible surface (14) with an arithmetic mean roughness Ra of 1 to 40 μm. A clear lacquer coating (40) is disposed on the visible surface (14) of the main body (12) and has a layer thickness of at most 60 μm. The clear lacquer coating (40) is applied so that the surface structure (15) of the main body (12) that is disposed below the clear lacquer coating (40) is distinguishable in a visible and haptic manner.

First claim

What is claimed is:

1. A visible interior component of a motor vehicle, comprising:
a main body made from a magnesium material, the main body having a visible surface with a surface structure having an arithmetic mean roughness Ra of 2 to 6 μm; and
a clear lacquer coating disposed on the visible surface of the main body, the clear lacquer coating having a layer thickness of at most 60 μm, wherein the surface structure of the main body that is disposed below the clear lacquer coating is distinguishable visually through the clear lacquer coating, the clear lacquer coating having a surface structure with an arithmetic mean roughness Ra of 0.5 to 1.5 μm so that the surface structure of the clear lacquer coating is distinguishable in a haptic manner, and the clear lacquer coating having a finish that displays 30 to 60 gloss units where the measurement is performed at a 60° angle.

2. The visible interior component of claim 1 , wherein the layer thickness of the clear lacquer coating is 5 to 40 μm.

3. The visible interior component of claim 1 , wherein the clear lacquer coating has a matting agent and/or a tinting agent.

4. The visible interior component of claim 1 , wherein the magnesium material is an alloy composed of magnesium, aluminum, zinc, and manganese.

5. The visible interior component of claim 1 , wherein the magnesium material producing the main body is a magnesium casting.

6. The visible interior component of claim 1 , wherein the visible interior component is a center console.

7. A method for producing the visible interior component of claim 1 , comprising:
providing the main body made from the magnesium material having the visible surface,
blasting the visible surface of the main body using blasting elements forming the surface structure of the main body, and
applying the clear lacquer coating to the visible surface that has been machined by the blasting elements.

8. The method of claim 7 , wherein the blasting elements are aluminum pellets.

9. The method of claim 8 , wherein the aluminum pellets have a diameter of 0.6 to 1 mm.

10. The method of claim 7 , wherein the step of blasting comprises pressure blasting or wheel blasting.

11. The method of claim 7 , wherein the step of providing the main body comprises die-casting or extruding the magnesium material.

Assignees

• Porsche Ag

Inventors

• Golob Silke
• Jungert Dieter
• Heth Marc-Lieven

Classifications

• B24C1/086

  Descaling; Removing coating films · CPC title

• B05D7/14 Primary

  to metal, e.g. car bodies (involving a chemical reaction between the metal and the coating C23) · CPC title

• B05D3/12 Primary

  by mechanical means · CPC title

• B60R13/02 Primary

  {Internal} Trim mouldings {; Internal} Ledges; Wall liners {for passenger compartments}; Roof liners (B60R13/01 takes precedence {; padded linings for the vehicle interior B60R21/04; arrangements or adaptations of floor mats or carpets in vehicles B60N3/04; internal lining for trains B61D17/18}) · CPC title

• B05D2401/00

  Form of the coating product, e.g. solution, water dispersion, powders or the like · CPC title