Indexable Cutting Insert With Mounting Cut-Outs
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Solution Overview
Problem
Existing indexable cutting inserts for groove turning operations face challenges in manufacturing efficiency, strength, rigidity, efficient chip formation, and reducing the risk of chip collision during evacuation.
Innovation Solution
The indexable cutting insert features opposing end surfaces with a peripheral surface and a central axis, including at least two cutting portions with rake and relief surfaces, and at least one mounting cut-out that extends between and intersects the end surfaces, optimizing manufacturing efficiency and structural support.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If traditional solid cutting inserts are used, then strength and rigidity are maintained, but manufacturing efficiency and chip evacuation are reduced
Solution Approach 1:
The cutting insert is segmented by introducing mounting cut-outs that divide the insert body into distinct sections. These cut-outs create a modular structure that maintains overall strength while enabling more efficient chip evacuation paths and improved manufacturing processes through reduced material consumption and optimized cooling channels.
2Object-generated harmful factors
If mounting cut-outs are added to the insert, then chip evacuation is improved, but structural integrity may be compromised
Solution Approach 1:
The mounting cut-outs are strategically positioned and dimensioned to create local voids that serve specific functions: improving chip evacuation in critical zones while maintaining adequate material thickness in load-bearing areas. The cut-outs are designed with optimized geometry to remove only the necessary material for chip flow without compromising the overall structural integrity of the insert.
3Productivity
If multiple cutting portions are integrated, then productivity increases, but device complexity increases
Solution Approach 1:
The cutting insert is designed with multiple cutting portions that can perform different grooving operations, allowing a single insert to replace multiple specialized inserts. The mounting cut-outs and indexable positioning system enable the insert to be rotated and repositioned for various cutting configurations, providing universal functionality across different groove turning applications without requiring separate tools for each operation.
Data Source
AI summary
A cutting tool has an indexable cutting insert removably secured to a holding portion of an insert holder. The cutting insert has opposing first and second end surfaces with an insert peripheral surface and a central axis extending therebetween, at least two cutting portions, and at least one mounting cut-out. Each cutting portion has a cutting edge formed by the intersection of rake and relief surfaces formed on the insert peripheral surface, one rake surface facing in a first rotary direction about the central axis and one rake surface facing in an opposite second rotary direction. Each mounting cut-out extends between the first and second end surfaces and has spaced apart first and second flank surfaces disposed on a cut-out peripheral surface which is separate and spaced apart from the insert peripheral surface. The first and second flank surfaces face in the first and second rotary directions, respectively.