Ring Rolling Drum for Inner Densification Without Pattern Damage
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Solution Overview
Problem
Existing technologies have not effectively addressed the need to produce ring-shaped objects with improved structural strength and appearance, as cast objects suffer from low density and hardness, while forged objects lack aesthetic appeal and are prone to breakage.
Innovation Solution
A rolling apparatus comprising a rolling drum with an embedding medium that covers the outer periphery of the ring-shaped object, using a cylindrical roller to uniformly roll the inner periphery, thereby increasing density and protecting the outer textures and patterns.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If casting method is used to form ring-shaped objects with complex patterns, then appearance quality is improved, but structural strength and density deteriorate
Solution Approach 1:
The invention separates the ring-shaped object into two distinct regions: the outer periphery is preserved with original casting patterns for aesthetic quality, while the inner periphery undergoes rolling compression for structural strengthening. This segmentation allows simultaneous achievement of both appearance quality and structural strength.
Solution Approach 2:
The rolling compression is applied locally only to the inner periphery of the ring-shaped object, while the outer periphery remains untouched to preserve its casting patterns and appearance. This local application of compression selectively improves density and strength where needed without compromising aesthetic regions.
2Strength
If forged method is used to increase density and strength, then structural strength is improved, but appearance quality and pattern detail deteriorate
Solution Approach 1:
The rolling compression is applied locally only to the inner periphery of the ring-shaped object, while the outer periphery remains untouched to preserve its casting patterns and appearance. This local application of compression selectively improves density and strength where needed without compromising aesthetic regions.
3Strength
If press forming with rubber or polyurethane mold is used to increase density, then structural strength is improved, but appearance detail and pattern quality deteriorate
Solution Approach 1:
The rolling compression is applied locally only to the inner periphery of the ring-shaped object, while the outer periphery remains untouched to preserve its casting patterns and appearance. This local application of compression selectively improves density and strength where needed without compromising aesthetic regions.
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 apparatus enhances the structural strength and hardness of ring-shaped objects by uniformly rolling the inner periphery, while preserving the outer textures and patterns, thus addressing the dual issues of low density and appearance.
Implementation Method 1
a cylindrical roller inserted through the cavity... During a process of rolling the inner periphery of the ring-shaped object to increase a density thereof by a cylindrical roller
Implementation Method 2
An embedding medium of a rolling drum may tightly cover an outer periphery of the ring-shaped object... the outer periphery of the ring-shaped object is protected by the embedding medium
Data Source
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AI summary
An apparatus (100) for rolling ring-shaped object (R) has a rolling drum (200), a rolling device (300), and a base (400). The rolling drum (200) has two circular frames (210, 220) filled with an embedding medium (270) for tightly surrounding an outer periphery (RO) of the ring-shaped object (R) with removable fixtures, which are removed to form a cavity (272) for revealing an inner periphery (RI) of the ring-shaped object (R). The inner periphery (RI) of the ring-shaped object (R) is rolled on a rolling platform (410) of the base (400) via a cylindrical roller (310) inserted through the cavity (272) of the embedding medium (270) to increase a density thereof. During the rolling process, the outer periphery (RO) of the ring-shaped object (R) is fixed and protected by the embedding medium (270) to protect textures and patterns formed thereon.