Cutting Tool Coolant Channel Layout for Simpler Edge Delivery
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Solution Overview
Problem
Existing cutting tools require complex channel formations to direct fluid to cutting edges, increasing manufacturing costs and channel resistance.
Innovation Solution
A cutting tool design featuring a first channel extending parallel to the rotational center axis, decentered to avoid matching the axis, and second channels extending linearly from the first channel to the cutting edges, eliminating the need for bent channels and reducing manufacturing complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If bent channels are formed to direct fluid to cutting edges, then fluid delivery effectiveness is improved, but manufacturing complexity and cost increase
Solution Approach 1:
The first channel is positioned asymmetrically (decentered) relative to the rotational center axis, allowing linear second channels to naturally direct fluid toward cutting edges without requiring bent configurations. This asymmetric positioning resolves the contradiction by enabling effective fluid delivery through simpler linear channel geometry.
Solution Approach 2:
The solution transitions from attempting to bend channels in three-dimensional space to achieving directional fluid flow through strategic positioning in the radial dimension. By placing the first channel at a decentered position, the system uses spatial arrangement rather than channel curvature to achieve the desired fluid delivery direction.
2Ease of manufacture
If linear channels are used from the first channel to cutting edges, then manufacturing complexity is reduced, but fluid may not directly contact cutting edges
Solution Approach 1:
The asymmetric (decentered) positioning of the first channel creates the geometric condition where linear second channels naturally orient toward the cutting edges. This resolves the contradiction by making linear channel geometry both manufacturable and effective for direct fluid contact.
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 configuration allows for easy formation of channels to the cutting edges, reducing manufacturing costs and channel resistance while ensuring effective fluid delivery to the cutting edges.
Implementation Method 1
a channel for guiding fluid supplied from outside to an outflow port formed in a vicinity of the cutting edge
Data Source
AI summary
A cutting tool includes a grip part and a cutting part. In the grip part and the cutting part, a channel for guiding fluid supplied from the outside to an outflow port is formed. The channel includes: a first channel extending in parallel to a rotational center axis and linearly from an end part of the grip part on an opposite side to the cutting part; and a second channel extending linearly from the first channel toward a cutting edge of a cutting insert. The first channel is formed such that a center axis thereof is decentered so as not to match the rotational center axis.