Cutting Insert Structure for Stable Chip Flow in Traversing
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Solution Overview
Problem
Existing cutting tips are insufficient in chip discharge performance during processes where the direction along the main cutting edge is the feed direction, such as traversing processes, limiting their usability in these operations.
Innovation Solution
The cutting insert design includes a base and cutting parts with specific geometries, such as inclined surfaces, protrusions, and upheaved parts, which enhance chip discharge performance by stabilizing and curving chip flow, allowing the tip to be used in both grooving, cutting-off, and traversing processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional cutting tip design is used, then the structure is simple and easy to manufacture, but the chip discharge performance is insufficient during traversing processes
Solution Approach 1:
The cutting insert is divided into multiple functional surfaces including first and second cutting edges, first and second upheaved parts, and multiple lateral surfaces. Each segment performs a specific function in chip control and discharge, transforming the chip flow into a controlled spiral path that efficiently exits the cutting zone.
Solution Approach 2:
The invention introduces a three-dimensional chip discharge path by creating upheaved parts that rise from the cutting surface and lateral surfaces that extend in multiple directions. This multi-dimensional structure guides chips through a spiral trajectory rather than a simple linear path, significantly improving discharge efficiency during traversing processes.
2Adaptability or versatility
If the cutting insert is designed with multiple cutting edges and upheaved parts, then versatility across different cutting processes is improved, but the manufacturing complexity increases
Solution Approach 1:
The cutting insert incorporates multiple cutting edges (first and second cutting edges) that can be selectively used depending on the specific cutting process requirements. The same insert structure supports grooving, cutting-off, and traversing processes, making it a universal tool that eliminates the need for multiple specialized inserts.
Solution Approach 2:
Different regions of the cutting insert are designed with specific geometries optimized for their local functions. The first upheaved part and second upheaved part have different positions and dimensions, and each lateral surface is angled specifically to control chip flow in its particular zone, ensuring optimal performance across all cutting processes.
Data Source
AI summary
A cutting insert may include a base and a cutting part. The cutting part may include an upper surface, a first cutting edge and a second cutting edge. The first cutting edge may be located on a first ridgeline. The second cutting edge may be located on a second ridgeline. The upper surface may include a first inclined surface, protrusions and a first upheaved part. The first inclined surface may be located along the first ridgeline. The protrusions may be located side by side in a direction along the first ridgeline on the first inclined surface. The first upheaved part may be located at a side further away from the first ridgeline than the pair of protrusions. The second cutting edge may be inclined downward. An upper end of the first upheaved part may be located above the second cutting edge.