Rotatable Cutting Tool Insert with Offset Cartridges
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Cutting tool inserts with high hardness used in finebore machining processes become dulled quickly, leading to reduced tool life and high material costs, necessitating a system to extend their usage.
Innovation Solution
A machining tool system featuring a cutting tool insert with a cubic boron nitride coating and a rotatable design that allows different portions of the cutting surface to be exposed as the insert is rotated through multiple cartridges with offset insert pockets, maximizing tool life and usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If cutting tool inserts with high hardness materials (artificial diamond or cubic boron nitride) are used in finebore machining processes, then cutting precision and hardness are improved, but tool life is reduced as the inserts become dulled after as few as two uses
Solution Approach 1:
The cutting tool insert is segmented into multiple cutting surfaces (first, second, third, and fourth cutting surfaces) that can be sequentially used. Each surface can be independently utilized before moving to the next, effectively dividing the tool's total cutting capacity into discrete usable portions that extend overall tool life.
Solution Approach 2:
The cutting tool insert incorporates a rotatable feature that allows dynamic switching between multiple cutting surfaces. The insert can be rotated to present different cutting surfaces to the workpiece, enabling continuous operation without requiring tool replacement after a single surface becomes dull.
2Manufacturing precision
If cutting tool inserts are frequently replaced due to dulling, then cutting precision is maintained, but material costs increase and productivity decreases
Solution Approach 1:
By segmenting the cutting tool insert into multiple cutting surfaces, the system allows continued operation with reduced precision degradation. Instead of replacing the entire insert after one surface dulls, operators can rotate to fresh surfaces, maintaining acceptable precision levels across multiple usage cycles.
Solution Approach 2:
The system recovers value from cutting surfaces that would otherwise be discarded. By rotating the insert to use different surfaces, the toolmaker extracts maximum value from each expensive insert, effectively recovering the material investment before replacement becomes necessary.
3Duration of action of moving object
If multiple cutting surfaces are implemented on a single insert, then tool life is extended, but device complexity increases with multiple cartridges and offset insert pockets
Solution Approach 1:
The cutting tool insert is designed as a multi-functional component that can perform cutting operations with multiple different surfaces. This universal design allows a single insert to replace what would traditionally require multiple separate inserts or tools, simplifying the overall system despite the added rotational mechanism.
Data Source
AI summary
A machining tool for cutting a work component includes a cutting tool insert having a cutting surface along a portion of an external surface that defines a circumference of the cutting tool insert. A plurality of cartridges are insertable into the machining tool, each having an insert pocket for receiving the cutting tool insert. The cutting tool insert is rotatable between first, second and third fixed positions in each insert pocket of the plurality of cartridges, a first portion of the cutting surface exposed when the cutting tool insert is in the first fixed position, a second portion of the cutting surface exposed when the cutting tool insert is in the second fixed position, and a third portion of the cutting surface exposed when the cutting tool insert is in the third fixed position. The insert pocket of each of the plurality of cartridges is offset from each other.