Cutting Tool Fluid Channel Layout for Direct Cutting 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 decentered from the rotational center axis with linear second channels extending from it to the cutting edges, eliminating the need for bent channels and allowing easier formation and reduced resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If bent channels are formed to guide fluid directly to cutting edges, then fluid contact efficiency is improved, but manufacturing complexity and cost increase
Solution Approach 1:
The channel system is divided into a first channel extending along the rotational center axis and multiple second channels extending radially outward to individual cutting edges. This segmentation allows each channel to be simpler in form while collectively achieving comprehensive fluid distribution to all cutting edges without requiring complex bent paths.
Solution Approach 2:
The first channel is positioned at a different radial dimension (decentered from the rotational center axis) rather than at the center, allowing second channels to extend linearly radially outward to cutting edges. This dimensional repositioning enables direct linear channel paths without bends while maintaining effective fluid delivery to all cutting edges.
2Reliability
If bent channels are used to reach inner cutting edges, then fluid delivery to all cutting edges is achieved, but manufacturing cost increases
Solution Approach 1:
The channel system is segmented into a central first channel and multiple radial second channels, each extending linearly to specific cutting edges. This segmentation enables straightforward manufacturing of linear channels compared to complex bent channels, reducing manufacturing cost while ensuring fluid reaches all cutting edges including inner ones.
Solution Approach 2:
The first channel is positioned asymmetrically (decentered) relative to the rotational center axis, creating an optimized radial distribution pattern. This asymmetric positioning allows linear second channels to efficiently reach cutting edges at different radial positions without requiring symmetric bent paths, simplifying manufacturing.
3Ease of manufacture
If linear second channels are used from a centered first channel, then manufacturing is simpler, but fluid cannot directly contact inner cutting edges
Solution Approach 1:
The first channel is repositioned in a different radial dimension (decentered from center) rather than positioned at the rotational center axis. This dimensional change allows linear second channels extending radially outward to directly reach and contact inner cutting edges, maintaining manufacturing simplicity while ensuring effective fluid delivery.
Data Source
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AI summary
A cutting tool (10) 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 (310) extending in parallel to a rotational center axis (AX) and linearly from an end part of the grip part on an opposite side to the cutting part; and a second channel (320) 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.