Dental Tool Cutting End Alignment on Pre-Fluted Blanks
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Solution Overview
Problem
Existing manufacturing methods for dental tools are inefficient, particularly in forming the cutting end region and aligning the flutes, leading to time-consuming and complex processes.
Innovation Solution
A method involving the use of a pre-fluted blank, where the blank is first formed with a shank and stem including helical flutes, and then a cutting end region is formed using a machine controlled by a probe to ensure correct orientation of the flutes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional sequential grinding operations are used to form the cutting end region and flutes on a uniform blank, then the tool can be manufactured with correct orientation, but the manufacturing process is time-consuming and inefficient
Solution Approach 1:
The flutes are pre-formed on the blank before the cutting end region is created. This preliminary action allows the blank to be prepared in advance with the flute geometry already in place, eliminating the need for time-consuming sequential operations while maintaining orientation accuracy through the probe identification system
Solution Approach 2:
The manufacturing process is segmented into distinct operations: forming the cutting end region and separately forming the flutes. This segmentation allows each operation to be optimized independently and performed by specialized machines, improving overall productivity while maintaining precision through the probe-based orientation system
2Manufacturing precision
If multiple sequential grinding operations are performed to form the tool shape, then the desired tool geometry is achieved, but the manufacturing complexity and time increase
Solution Approach 1:
The blank is pre-formed with the desired geometry (shank, stem, and flute dimensions) before the final cutting end region is created. This preliminary preparation reduces the number of sequential operations needed and simplifies the overall manufacturing process while maintaining geometric accuracy
Solution Approach 2:
A probe is introduced as an intermediary device to identify the orientation and position of the flutes on the pre-fluted blank. This intermediary enables the machine to automatically determine correct orientation without complex setup procedures, reducing process complexity while maintaining precision
3Productivity
If the blank is formed and flutes are created in separate operations, then manufacturing efficiency improves, but additional positioning and orientation steps are required
Solution Approach 1:
The pre-fluted blank itself provides the positioning information through its flute geometry. The probe identifies the flute orientation directly on the blank, allowing the blank to 'self-identify' its orientation without requiring external fixtures or complex positioning mechanisms, thus maintaining efficiency while managing complexity
Data Source
AI summary
A method for manufacturing a dental or medical tool the method comprising the steps of positioning a pre-fluted blank 14 including a stem 24 and a shank 22 within a machine 30, using a probe to identify a position and/or an orientation of at least one flute 26 of the pre-fluted blank 14 and/or the position and/or orientation of an orientation indicator 28 of the pre-fluted blank 14, and using the machine 30 to form a cutting end region 36 at the end of the stem 24 of the pre-fluted blank 14 remote from the shank 22, the flute 26 extending into the cutting end region 36, the machine 30 being controlled to ensure that the cutting end region 36 is correctly orientated relative to the flutes 26 of the pre-fluted blank 14.