Aluminium and magnesium coated part assembly

Patent metadata

Field	Value
Publication number	US-12203188-B2
Application number	US-202217737552-A
Country	US
Kind code	B2
Filing date	May 5, 2022
Priority date	May 5, 2021
Publication date	Jan 21, 2025
Grant date	Jan 21, 2025

Abstract

A part assembly ( 100 ), comprising: an aluminium part ( 101 ); a magnesium part ( 102 ), the magnesium part ( 102 ) coated in a first coating ( 104 ); a bond ( 103 ), the bond ( 103 ) securing the aluminium part ( 101 ) to the coated magnesium part ( 114 ); wherein the aluminium part ( 101 ), the coated magnesium part ( 114 ) and the bond ( 103 ) are subjected to an electrophoresis coating process to coat the aluminium part ( 101 ) in a second coating ( 105 ). By subjecting the aluminium part ( 101 ), the coated magnesium part ( 114 ) and the bond ( 103 ) to an electrophoresis coating process to coat the aluminium part ( 101 ) in a second coating ( 105 ) this may provide a simpler manufacturing process.

First claim

The invention claimed is:

1. A part assembly, comprising:
an aluminium part;
a magnesium part, the magnesium part coated in a first coating;
a bond, the bond securing the aluminium part to the coated magnesium part;
wherein the aluminium part, the coated magnesium part and the bond are subjected to an electrophoresis coating process to coat the aluminium part in a second coating, and the coated magnesium part is not coated in the second coating; and
wherein a first mating edge of the coated aluminium part and a first mating edge of the coated magnesium part are arranged to be flush and aligned so that the bond is flush and aligned with the first mating edge of the coated aluminium part and the first mating edge of the coated magnesium part.

2. The part assembly according to claim 1 , wherein the bond is not coated in the second coating.

3. The part assembly according to claim 1 , wherein the aluminium part and the coated magnesium part are planar.

4. The part assembly according to claim 1 , wherein a second mating edge of the coated aluminium part and a second mating edge of the coated magnesium part are arranged to be flush and aligned so that the bond is flush and aligned with the second mating edge of the coated aluminium part and the second mating edge of the coated magnesium part.

5. The part assembly according to claim 1 , wherein the first coating material thickness is greater than 100 μm, and/or the second coating material thickness is greater than 20 μm.

6. The part assembly according to claim 1 , wherein the first coating material is a powder coating material, the first coating is applied by spraying, and/or the first coating material comprises epoxy powder coating.

7. The part assembly according to claim 1 , wherein the second coating material comprises a black cathodic epoxy coating.

8. A vehicle panel comprising the part assembly according to claim 1 .

9. A vehicle comprising the vehicle panel according to claim 8 .

Assignees

• Mclaren Automotive Ltd

Inventors

• Podmore Ella
• Beck Emanuel
• Turner David
• Carandente Mario

Classifications

• C25D13/22

  Servicing or operating {apparatus or multistep processes} · CPC title

• C25D13/12

  characterised by the article coated · CPC title

• C25D13/00

  Electrophoretic coating characterised by the process (C25D15/00 takes precedence; compositions for electrophoretic coating C09D5/44) · CPC title

• C23C28/00

  Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D · CPC title

• C23C4/04

  characterised by the coating material · CPC title