Aluminum Vehicle Rim Vacuum Casting for Thin-Wall Precision
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Solution Overview
Problem
Existing methods for producing motor vehicle rims from aluminum alloys are not cost-effective and efficient, particularly when dealing with delicate structures requiring small wall thicknesses and complex geometries.
Innovation Solution
A method involving vacuum die casting is used to produce a one-piece motor vehicle rim with small wall thicknesses and intricate designs, utilizing an aluminum alloy, allowing for rapid and cost-effective manufacturing by forming the rim base, rim center, and hub simultaneously in a single assembly step.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional casting methods are used to produce motor vehicle rims, then production cost and time are reduced, but manufacturing precision and structural delicacy deteriorate
Solution Approach 1:
The patent applies vacuum die casting with specific parameter control (vacuum level, injection pressure, cooling rate) to achieve high manufacturing precision for delicate rim structures while maintaining production efficiency. The controlled parameters enable thin wall sections and complex geometries to be produced accurately.
Solution Approach 2:
The patent replaces conventional mechanical casting methods with vacuum die casting technology, which uses vacuum pressure and controlled material injection to achieve superior manufacturing precision for delicate structures without sacrificing productivity.
2Weight of moving object
If wall thickness is reduced to achieve lightweight and aerodynamic rims, then weight and material usage are reduced, but structural strength and manufacturing difficulty worsen
Solution Approach 1:
The patent uses vacuum die casting parameters (vacuum level, injection pressure, material temperature) to produce thin-walled rims with controlled wall thickness while maintaining structural strength through precise material distribution and elimination of voids.
Solution Approach 2:
The patent employs aluminum alloy materials with specific compositional characteristics optimized for vacuum die casting, achieving high strength-to-weight ratio in thin-walled rim structures through material selection and processing optimization.
3Shape
If complex geometries with small curvature radii are produced, then aerodynamic performance and design flexibility are improved, but manufacturing complexity and tooling requirements worsen
Solution Approach 1:
The patent replaces complex mechanical tooling and multi-step manufacturing processes with vacuum die casting, which uses vacuum pressure and controlled material flow to form complex geometries with small curvature radii in a single operation, reducing tooling complexity.
4Weight of moving object
If aluminum alloy is used instead of traditional materials, then weight is reduced, but manufacturing process complexity and cost worsen
Solution Approach 1:
The patent optimizes aluminum alloy selection and vacuum die casting parameters (temperature, pressure, vacuum level) to simplify the manufacturing process while achieving weight reduction, making the process more economical and easier to implement.
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
This approach enables the production of lightweight, aerodynamic, and structurally delicate rims with reduced material usage and cycle times, enhancing manufacturing efficiency and reducing production costs.
Implementation Method 1
vacuum die casting of a casting material
Data Source
AI summary
A method for producing a motor vehicle rim made of aluminum or an aluminum alloy for a motor vehicle wheel. The motor vehicle rim has a rim base delimited on opposite sides by an outer horn and an inner horn, a hub with a central recess and a hole circle and a rim center connecting the rim base and the hub to one another and acting eccentrically on the rim base in longitudinal section. The motor vehicle rim is produced in one piece and continuously in a casting mold by vacuum die casting of a casting material, wherein the motor vehicle rim has a small wall thickness of at most 15 mm at least in some regions and/or a curvature with a small radius of curvature of at most 4 mm.