Double-Sided Tangential Cutting Insert With Eight Stable Working Positions

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing double-sided tangential cutting inserts lack a design that optimizes their versatility and stability across multiple working positions, leading to potential instability and chip erosion issues.

Innovation Solution

The double-sided tangential cutting insert is designed with eight different working positions, featuring two end faces with four sets of cutting edges each, and a unique arrangement of inclined abutment surfaces in a grid-like pattern, providing strong locking mechanisms and adaptability to various cutting force directions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a double-sided tangential cutting insert is designed with multiple working positions, then versatility is improved, but stability and locking strength may deteriorate

Engineering Contradiction:

Improvenumber of working positionsVSAvoidlocking stability

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The cutting insert is divided into two separate end faces, each with its own set of cutting edges and abutment surfaces. This segmentation allows each end face to be independently optimized for stability while collectively providing eight working positions (four on each end face), resolving the contradiction between versatility and stability.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Different abutment surfaces are positioned at specific locations on each end face to provide localized support and locking in different working positions. The strategic placement of abutment surfaces ensures that stability is maintained locally at each position while the overall insert offers multiple working positions.

Inventive Principle:

Principle #3Local quality

2Reliability

If abutment surfaces are arranged to provide strong locking, then stability is improved, but chip erosion risk increases

Engineering Contradiction:

Improvelocking strengthVSAvoidchip erosion

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The solution moves from a single-end-face design to a dual-end-face design, adding a dimensional aspect to the abutment surface arrangement. By distributing abutment surfaces across two end faces, the design achieves strong locking through multiple surfaces while reducing chip erosion risk through better spatial distribution and chip flow management.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

Data Source

PatentUS20250050428A1Double-sided tangential cutting insert

Publication Date: 2025.02.13 SECO TOOLS AB

AI summary

A double-sided tangential cutting insert, having eight different working positions, includes two opposite end faces serving as leading and trailing faces of the cutting insert, two opposite major side faces, two opposite minor side faces, a through hole extending between the two major side faces, cutting edges distributed along a periphery of each end face, and four abutment surfaces arranged on each end face in a grid-like pattern with two first arrays, each of which have two consecutive abutment surfaces that extend between the two major side faces, and two second arrays, each of which have two consecutive abutment surfaces and extend between the two minor side faces. Each abutment surface are inclined inwards in the cutting insert such that each two consecutive abutment surfaces in each array are inclined towards each other.