Grinding Wheel Tips With Support Blocks
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Solution Overview
Problem
Existing grinding wheels with long wheel tips are prone to breaking due to the high frictional forces applied during wafer grinding, necessitating frequent wheel exchanges.
Innovation Solution
A grinding wheel design featuring a wheel body, wheel tips, and a support block that extends beyond the tip ends to prevent bending and enhance durability, along with a control module to adjust the support block's position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of stationary object
If wheel tips with long length are provided to increase exchange period, then the exchange period is extended, but the wheel tips are easily broken
Solution Approach 1:
A support block is introduced as an intermediary component between the wheel tip and the wheel body. This support block provides mechanical reinforcement to the wheel tip, preventing it from bending or breaking during the grinding process while still allowing the wheel tip to maintain its extended length for prolonged service life.
2Duration of action of moving object
If wheel tips are made longer to reduce frictional wear, then the exchange period increases, but the structural strength decreases
Solution Approach 1:
The wheel tip structure is segmented into two functional parts: the extended grinding portion that contacts the wafer and provides prolonged service life, and the support block portion that provides structural reinforcement. This segmentation allows each part to optimize its specific function without compromising the other.
Solution Approach 2:
The wheel tip assembly functions as a composite structure combining the wheel tip material (optimized for grinding performance) with the support block material (optimized for mechanical strength). This composite approach allows the extended wheel tip to achieve both longevity and structural integrity.
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 support block and control module configuration allows for longer wheel tip lengths, reducing breakage and extending the wheel's lifespan, thereby increasing the exchange period and improving grinding efficiency.
Implementation Method 1
a support block disposed on the base shank and an outer side surface of each of the wheel tips
Implementation Method 2
the wheel tips may make contact with the wafer such that a frictional force is applied between the wheel tips and the wafer so that the wheel tips may be continuously worn
Data Source
AI summary
A grinding wheel includes: a wheel body positioned over a wafer; a plurality of wheel tips disposed on the wheel body; and a support block disposed on the wheel body and an outer side surface of each of the wheel tips.