Vehicle Wheel Coating Process for Multicolor Design
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Solution Overview
Problem
Current methods for manufacturing multicolor vehicle wheels are expensive and unsuitable for industrial mass production, as they require complex and costly processes involving wheel part imitations and template-based paint applications, limiting reproducibility and accuracy.
Innovation Solution
A high-precision machining and coating process applying multiple layers of paint with different colors, where one layer is mechanically removed in specific areas to create a multicolor design, using coatings with reflectivity and UV-resistant formulations, allowing for industrial-scale production with high reproducibility and accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If template-based paint application or wheel part imitations are used to create multicolor designs, then color differentiation is achieved, but manufacturing cost increases and industrial mass production becomes impossible
Solution Approach 1:
The wheel is divided into multiple workpieces that are processed separately on different machining centers, each receiving specific color coatings on specific surfaces. This segmentation allows parallel processing of multiple wheels with different color patterns simultaneously, enabling industrial mass production while maintaining high precision color design reproduction.
Solution Approach 2:
The patent applies preliminary machining to create recesses and contours on wheel surfaces before coating. This preliminary action defines precise areas where coatings will be applied or removed, ensuring accurate color pattern reproduction. By pre-defining the geometry, the subsequent coating process achieves high precision without requiring expensive templates or maskings.
2Adaptability or versatility
If multiple layers of paint are applied to create multicolor designs, then color variety increases, but process complexity and manufacturing cost increase
Solution Approach 1:
Different surfaces of the wheel receive different color coatings based on their specific requirements. The machining center applies coatings selectively to specific surfaces, creating local quality variations. This allows high color design variety without requiring complex multi-step processes for each wheel, as each surface is optimized independently.
Solution Approach 2:
A single machining center performs multiple functions: machining recesses, applying coatings to multiple surfaces, and creating different color patterns on different workpieces. This multi-functionality reduces overall process complexity compared to having separate specialized processes for each coating operation.
3Manufacturing precision
If traditional lacquering processes are used, then single-color wheels are produced, but multicolor design capability is lost
Solution Approach 1:
The coating process is made dynamic by allowing different color patterns to be applied to different workpieces on the same machining center. The system can adapt its coating pattern based on the specific workpiece being processed, enabling multicolor design capability while maintaining high precision through programmable control of the coating application.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The method enables the production of high-quality multicolor wheels with improved reproducibility and cost-effectiveness, allowing for industrial mass production of vehicle wheels with complex color designs on all visible surfaces.
Implementation Method 1
Layers that have reflectivity in a partial range of the visible light and thus create a color effect, such as red, yellow, green, blue, etc., for the viewer
Data Source
AI summary
An industrially applicable method for preparing color-coated vehicle wheel components and vehicle wheels, which is characterized in that the metal body is at first machined at least in areas to be coated, after which at least two layers of paint are applied one after another, and at least one layer of paint is removed by machining in a partial area of the wheel. A component according to the present invention with a surface coating is thus characterized by areas machined with high precision and provided with a coating, wherein said coating has at least two layers of paint applied one on top of another, of which at least a first layer of paint is exposed in visible partial areas of the metal body, by a second layer of paint covering it being mechanically removed in partial areas not covered by it.