Cutting Insert Fluid Channel Layout Without Strength Loss
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional cutting tools and inserts face manufacturing complexity and strength issues due to fluid flow channels, which complicate the introduction of lubricating and cooling fluids to cutting edges.
Innovation Solution
A cutting tool and insert design featuring a hole extending from the bottom surface to the clamping surface and a channel proximate to the cutting edge, with a toolholder passage in flow communication, allowing fluid introduction without compromising the insert's strength.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If fluid flow channels are provided in the cutting insert, then fluid can be introduced to the cutting edges, but manufacturing complexity increases and insert strength is reduced
Solution Approach 1:
The fluid delivery system is segmented into two parts: a simple through-hole in the insert body and a separate channel structure in the toolholder. This segmentation allows the insert to be manufactured with a simple hole while the toolholder contains the complex channel geometry, resolving the contradiction between fluid delivery capability and manufacturing complexity.
Solution Approach 2:
The through-hole in the insert acts as an intermediary element that connects the toolholder's channel system to the cutting edge. Instead of creating complex channels directly in the insert, the hole serves as a simple conduit that works in conjunction with the toolholder's channel, eliminating the need for complex insert manufacturing while maintaining effective fluid delivery.
2Ease of operation
If fluid flow channels are provided in the cutting insert, then fluid can be introduced to the cutting edges, but insert strength is weakened
Solution Approach 1:
By segmenting the fluid delivery system between the toolholder and insert, the insert only requires a simple through-hole rather than complex embedded channels. This minimal intrusion preserves the insert's structural integrity and strength while still enabling effective fluid delivery to the cutting edges.
Solution Approach 2:
The complex channel geometry is extracted from the insert and relocated to the toolholder. This extraction allows the insert to maintain its full structural strength while the toolholder assumes the complexity of the fluid delivery path, eliminating the strength-weakening effect of complex channels in the insert.
3Ease of manufacture
If conventional spray nozzles or toolholder openings are used, then manufacturing is simpler, but fluid delivery effectiveness to cutting edges is reduced
Solution Approach 1:
The invention merges the advantages of both simple manufacturing and effective fluid delivery by combining a simple through-hole in the insert with a strategically designed channel in the toolholder. This merger achieves effective fluid delivery to the cutting edges while maintaining manufacturing simplicity, particularly in the insert which requires only a straightforward hole.
Solution Approach 2:
The through-hole in the insert serves as an intermediary that enables effective fluid delivery without requiring complex insert manufacturing. When combined with the toolholder's channel system, this simple hole achieves superior fluid delivery effectiveness compared to conventional spray nozzles or toolholder openings alone.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This design simplifies manufacturing and maintains the insert's strength while effectively providing fluid to the cutting edges, enhancing operational efficiency.
Implementation Method 1
facilitate introduction of fluid to the cutting edges of the insert
Data Source
AI summary
A cutting tool includes a cutting insert comprising a top surface, a bottom surface, a clamping surface for abutting a clamp, a cutting edge, a hole extending through the insert from the bottom surface to the clamping surface, and a channel extending from the clamping surface to proximate the cutting edge, and a tool holder comprising a tool holder body having a pocket for receiving the insert, a clamp for contacting the clamping surface and clamping the insert in the pocket, and a tool holder passage in the body in flow communication with the hole in the insert. A cutting insert is also provided.