Sleeved Drill Bit Flute Structure for Better Energy Transfer
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional drill bits face inefficiencies in energy transfer and increased stress on components due to the direct integration of flutes and shank, leading to reduced drilling speed and lifespan.
Innovation Solution
A drill bit design featuring a body, shank, cutting head, and external covering with a sleeve and flutes, where the sleeve and flutes are formed from a different material than the body and shank, allowing for more efficient energy transfer and reduced stress by providing a separate energy path and enhanced manufacturing flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If flutes are directly integrated with the shank in conventional drill bits, then the structure is simpler, but energy transfer efficiency decreases and stress on components increases
Solution Approach 1:
The drill bit is divided into separate components: the shank and the flutes are distinct elements that can be manufactured separately and then assembled. This segmentation allows each component to be optimized independently, improving energy transfer efficiency and reducing stress while maintaining manufacturing simplicity through modular construction.
2Ease of manufacture
If flutes are directly integrated with the shank, then manufacturing is simpler, but drill bit lifespan is reduced due to increased stress
Solution Approach 1:
By separating the flutes from the shank into distinct components, the stress experienced during drilling is distributed more effectively. The modular design allows each component to handle specific loads independently, reducing overall stress concentration and extending the drill bit's service life while keeping the manufacturing process simple through separate component production.
3Productivity
If a separate sleeve and flutes design is used, then energy transfer efficiency improves, but device complexity increases
Solution Approach 1:
A sleeve is introduced as an intermediary component between the shank and the flutes. This sleeve facilitates more efficient energy transfer from the shank to the flutes while maintaining a relatively simple overall structure. The intermediary element optimizes the energy pathway without requiring complex integration, thus improving productivity while limiting the increase in device complexity.
Data Source
AI summary
A drill bit including a body, a shank, a cutting head, and an external covering. The body has a first end and a second end. The shank is located at the first end. The cutting head is located at the second end. The external covering is separately formed from the body and is located between the first end and the second end of the body. The external covering includes a sleeve. The sleeve has a sleeve body that radially surrounds a portion of the body and a plurality of flutes helically wrapped around the sleeve body.