Pipe Thread Cutting Tool for Accurate Flank Alignment
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Solution Overview
Problem
Conventional methods for cutting threads in pipes suffer from inaccuracies due to misalignment of cutting tools, particularly when cutting varying-width threads.
Innovation Solution
A cutting tool with multiple teeth, each having stab flank and load flank cutting edges, is used to cut both flanks of a helical thread without the need for tool replacement, ensuring consistent geometry and spacing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If multiple cutting tools are used to cut different flanks of the thread, then the thread can be cut with conventional tools, but misalignment and inaccuracy occur between passes
Solution Approach 1:
The patent combines multiple cutting functions into a single cutting tool by providing multiple cutting teeth on one tool body. Each tooth has specifically configured flanks (stab flank and load flank) that enable different cutting actions. This merging eliminates the need for multiple separate tools and their associated alignment issues, directly resolving the technical contradiction between manufacturing precision and device complexity.
Solution Approach 2:
The cutting tool is designed with multi-functionality by incorporating multiple teeth that can perform different cutting functions. Each tooth can cut different flanks of the thread profile, making a single tool universal for completing the entire thread cutting process without requiring tool changes or multiple specialized tools, thus improving accuracy while managing complexity.
2Manufacturing precision
If cutting tool replacement is performed between passes, then different flanks can be cut with specialized tools, but time is lost and misalignment occurs
Solution Approach 1:
By merging multiple cutting functions into one tool with multiple teeth, the patent eliminates the need for tool replacement between passes. The single tool can continuously cut different flanks of the thread profile, preventing time loss and maintaining consistent alignment throughout the cutting process, thereby resolving both precision and time loss issues.
Solution Approach 2:
The cutting tool enables continuous useful action by allowing multiple teeth to cut different flanks without requiring tool removal or replacement. This continuity ensures consistent thread profile geometry is maintained throughout the cutting process, eliminating interruptions and alignment errors that would occur with tool changes.
3Productivity
If conventional cutting tools are used, then the cutting process can be completed, but alignment inaccuracies occur between different cutting passes
Solution Approach 1:
The patent merges multiple cutting functions into a single tool, eliminating the alignment problems inherent in using multiple separate tools. By having all cutting teeth mounted on one tool body with precise relative positioning, the system maintains both productivity (complete thread cutting) and precision (consistent alignment between different flank cuts).
Data Source
Figure 1A
Figure 1B
Figure 2A~2D
AI summary
The present invention relates to a method for cutting a thread and a cutting tool (100) and system for use in the method. The cutting tool (100) for cutting a helical thread on a pipe (50) comprises one or more cutting teeth (110). Each of the one or more cutting teeth (110) has a stab flank cutting edge (112A) for cutting a stab flank (10) and has a load flank cutting edge (112B) for cutting a load flank (20).