Coolant-Channel Cutting Element for Heat-Stable Rotary Tools

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Solution Overview

Problem

Rotary tools experience reduced cutting performance and life due to chip production and heat buildup, which current technologies fail to adequately address through effective chip removal and cooling mechanisms.

Innovation Solution

A cutting element with a carrier body and cutting body, where the cutting body is integrally connected to the carrier body, featuring an inner support channel structure for coolant supply and chip removal, avoiding direct heat transfer to the tool body and maintaining tool stability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If the cutting body is directly integrally connected to the tool body, then heat transfer to the tool body increases, but this causes thermal stress and distortion of the tool body

Engineering Contradiction:
Improveheat transferVSAvoidtool body stability
Core Design Contradiction:
TemperatureVSStability of the object's composition

Solution Approach 1:

The system is divided into three distinct components: the tool body, the carrier body, and the cutting body. The carrier body acts as an intermediate segment that connects the cutting body to the tool body, preventing direct thermal contact while maintaining structural integrity. This segmentation allows heat management without compromising tool body stability.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The carrier body serves as an intermediary element between the cutting body and the tool body. It provides a controlled interface for thermal management, allowing coolant to flow between the cutting body and carrier body while preventing direct heat transfer to the tool body, thus avoiding thermal stress and distortion.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Temperature

If coolant supply is provided directly from the tool body to the cutting body, then cooling effectiveness increases, but the structure becomes more complex

Engineering Contradiction:
Improvecooling effectivenessVSAvoidstructure complexity
Core Design Contradiction:
TemperatureVSDevice complexity

Solution Approach 1:

The coolant supply function is merged into the carrier body structure. The carrier body contains internal coolant channels and an outlet that directly contacts the cutting body, combining the functions of structural support and coolant delivery in a single component, thereby simplifying the overall system architecture.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The carrier body is designed to self-provide coolant to the cutting body through its integrated outlet structure. The geometry of the carrier body's coolant outlet is specifically designed to adapt to the cutting body shape, enabling effective cooling without requiring additional complex delivery mechanisms from the tool body.

Inventive Principle:
Principle #25Self-service

3Temperature

If the carrier body has an integrated coolant outlet adapted to cutting body geometry, then cooling precision improves, but manufacturing complexity increases

Engineering Contradiction:
Improvecooling precisionVSAvoidmanufacturing complexity
Core Design Contradiction:
TemperatureVSEase of manufacture

Solution Approach 1:

The design parameters of the carrier body, particularly the coolant outlet geometry, are optimized to match the cutting body shape. By carefully selecting and adjusting these geometric parameters, the system achieves precise coolant delivery while maintaining manufacturability through standard manufacturing processes.

Inventive Principle:
Principle #35Parameter changes

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

The solution enhances cooling and chip removal, maintaining tool stability and performance by providing a coolant supply adapted to the cutting body geometry, reducing thermal stress and extending tool life.

Implementation Method 1

the support channel structure has an inlet opening for a coolant inlet, wherein the support channel structure has an outlet channel fluidly communicating with the inlet opening and wherein the outlet channel is designed and arranged for supplying coolant to the cutting body

Methodology Applied
Scientific EffectConvection: Convection

Implementation Method 2

Since the cutting body is integrally connected to the carrier body, direct heat input into the tool body is avoided, which would occur if the cutting body were directly integrally connected to the tool body

Methodology Applied
Scientific EffectThermal insulation: Thermal Insulation

Data Source

PatentEP4035808A1Cutting element and cutting tool
Publication Date: 2022.08.03 CERATIZIT BESIGHEIM GMBH
  • EP4035808A1 patent drawingFigure 1
  • EP4035808A1 patent drawingFigure 2
  • EP4035808A1 patent drawingFigure 3

AI summary

A cutting element (1, 100) for a cutting tool (1000), wherein the cutting element (1, 100) has a carrier body (2, 120) and a cutting body (3, 130), wherein the cutting body (3, 130) has a top surface (32, 320), a bottom surface (33, 330) and a side surface (34, 340) circumferentially between the top surface (32, 320) and the bottom surface (33, 330), wherein the top surface (32, 320) faces away from the carrier body (2, 120), wherein the bottom surface (33, 330) faces the carrier body (2, 120), wherein the cutting edge (30, 131) is formed by a transition from the side surface (34, 340) to the top surface (32, 320), wherein the cutting body (3, 130) is materially bonded to the carrier body (2, 120), wherein the carrier body (2, 120) has an internal carrier channel structure (4), wherein the carrier channel structure (4) has an outlet channel (42) that communicates fluidly with the inlet opening (41), and wherein the outlet channel (42) is used to supply coolant to the cutting body (3,130) is trained and ordered.,