Modular Pocket Wall Cutting Tool for Selective Wear Replacement

Solution Overview

Problem

Conventional modular cutting tools require replacing the entire main body when only the front portion is worn, leading to material and financial waste.

Innovation Solution

A modular cutting tool design featuring a base body with a modular pocket that allows for the removable attachment of cutting head or insert, enabling the replacement of only the worn front portion.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the entire main body is replaced when the front portion is worn, then the cutting tool can be restored to full functionality, but material and money are wasted on replacing the unworn portions

Engineering Contradiction:

Improvecutting tool functionalityVSAvoidmaterial waste

Core Design Contradiction:

ReliabilityVSLoss of substance

Solution Approach 1:

The cutting tool is divided into two replaceable segments: the main body and the pocket assembly. The pocket assembly (containing the cutting head or insert) can be replaced independently when worn, while the main body remains in use if still functional. This segmentation allows selective replacement of only the worn portion, eliminating material waste of the unworn main body.

Inventive Principle:

Principle #1Segmentation

2Reliability

If the entire main body is replaced when the front portion is worn, then the cutting tool can be restored to full functionality, but financial resources are wasted

Engineering Contradiction:

Improvecutting tool functionalityVSAvoidfinancial waste

Core Design Contradiction:

ReliabilityVSLoss of energy

Solution Approach 1:

The cutting tool is divided into two replaceable segments: the main body and the pocket assembly. The pocket assembly (containing the cutting head or insert) can be replaced independently when worn, while the main body remains in use if still functional. This segmentation allows selective replacement of only the worn portion, eliminating financial waste of the unworn main body.

Inventive Principle:

Principle #1Segmentation

3Ease of manufacture

If the main body is made as a single integrated component, then the structure is simple and easy to manufacture, but the entire component must be replaced when any part wears

Engineering Contradiction:

Improvestructural simplicityVSAvoidmaterial waste

Core Design Contradiction:

Ease of manufactureVSLoss of substance

Solution Approach 1:

The cutting tool is divided into two replaceable segments: the main body and the pocket assembly. The pocket assembly (containing the cutting head or insert) can be replaced independently when worn, while the main body remains in use if still functional. This segmentation allows selective replacement of only the worn portion, eliminating material waste of the unworn main body.

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUS12128484B2Cutting tool with modular pocket wall

Publication Date: 2024.10.29 KENNAMETAL INC

AI summary

A cutting tool includes a base body and a cutting head at least partially disposed within a modular pocket of the base body. The modular pocket is formed by at least one wall section removably attached to the base body. In one variation, a non-removable portion of the base body also forms part of the modular pocket. In another variation, the modular pocket is formed by two removable wall sections on opposite sides of the modular pocket. In yet another variation, the removable wall sections include a clamping portion to exert a downward force on the cutting head to enable mounting the cutting head in the modular pocket using an interference fit.