Tube Flaring Bit Geometry for Tight-Space Swaging
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Solution Overview
Problem
Existing methods for widening open end portions of tubes, such as copper or aluminum tubes, are limited by excessive material usage, lack of interchangeability, and difficulty in operating in tight spaces, and often require excessive material and are not configured for operations in tight spaces.
Innovation Solution
A bit comprising a shank configured to be spun and a tip designed to widen the open end portion of a tube by engaging with it when the shank is spinning, allowing for flaring or swaging operations, with optional stoppers and varying cross-sectional designs to enhance functionality and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of substance
If traditional bits are used for widening tube open ends, then the widening function is achieved, but excessive material is used
Solution Approach 1:
The bit is divided into distinct functional segments: a shank for mounting and a tip for widening. The tip itself is segmented into a working surface and a body, allowing material to be removed only where needed for the widening function, thereby reducing overall material usage while maintaining efficiency.
Solution Approach 2:
The invention extracts only the essential widening function from traditional bit designs. The tip is designed with minimal material - just enough to form the widening surface - by removing unnecessary material from the traditional bit structure, achieving both material reduction and functional efficiency.
2Adaptability or versatility
If traditional bits are used for widening tube open ends, then the widening function is achieved, but the bits are not interchangeable with other bits
Solution Approach 1:
The bit is designed with a universal shank that can be mounted in standard power tool chucks, making it interchangeable with other bits. The modular design separates the universal mounting interface (shank) from the functional component (tip), allowing the same shank to accommodate different tip configurations for various widening applications.
Solution Approach 2:
The bit design allows for dynamic adaptation - the tip can be adjusted or replaced based on specific tube sizes and widening requirements, while maintaining compatibility with the standard shank interface. This dynamic configurability enhances interchangeability without requiring multiple specialized bits.
3Ease of operation
If traditional bits are used for widening tube open ends, then the widening function is achieved, but the bits cannot operate in tight spaces
Solution Approach 1:
The invention extracts only the essential widening function to a compact tip, removing the excessive length and bulk of traditional bits. The tip is designed to be as short as possible while still performing the widening function, enabling operation in tight spaces where longer traditional bits cannot reach.
Solution Approach 2:
The bit design transitions from traditional long, extended structures to a compact, concentrated tip geometry. By concentrating the widening function into a small, compact form factor rather than extending the bit length, the design enables access to tight spaces while maintaining the widening capability.
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
Enables efficient widening of tube open ends with reduced material usage, improved interchangeability, and enhanced capability for working in tight spaces through the use of a spinning bit with a specifically designed tip and shank configuration.
Implementation Method 1
the tip widens the open end portion by engaging thereagainst when the shank is spinning
Implementation Method 2
widen (e.g., flare, swage) various open end portions... of various tubes... by engaging thereagainst
Data Source
AI summary
This disclosure enables various bits to widen (e.g., flare, swage) various open end portions (e.g., with a circular cross-section) of various tubes (e.g., a metal tube, an alloy tube, a copper tube, an aluminum tube) by engaging thereagainst.