Monolithic Milling Cutter Chip Groove Structure for Jam-Free Cutting
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Solution Overview
Problem
Existing milling tools face issues with chip jamming and damage due to assembly gaps, increased assembly time, and excessive stress on retaining screws from centrifugal forces, leading to higher production costs and maintenance needs.
Innovation Solution
A milling tool with a monolithic support area and embedded chip grooves, where each cutting element is attached for front-side cutting, featuring end wall sections that cap the grooves to prevent chip exit and utilize coolant channels for enhanced chip removal through suction, reducing assembly gaps and improving machining efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a chip deflector cover is removably held on a cutting head, then chips are prevented from falling onto the workpiece, but assembly gaps are created where chips can become trapped and cause damage
Solution Approach 1:
The chip deflector function is merged with the monolithic support area by forming end wall sections that are integrally connected to the support area, eliminating the separate chip deflector cover and its associated assembly gaps. This integration ensures chips are contained without creating gaps where chips could become trapped.
Solution Approach 2:
The problematic chip deflector cover component is extracted/removed from the system. Instead of using a separate removable cover, the invention uses end wall sections formed directly as part of the monolithic support area, thereby eliminating the source of assembly gaps and chip jamming issues.
2Reliability
If a chip deflector cover is held by a retaining screw, then chip containment is achieved, but excessive centrifugal forces at high speeds create damaging stress on the screw
Solution Approach 1:
The chip containment structure is merged into the monolithic support area, eliminating the need for a separate chip deflector cover and retaining screw. The end wall sections are integrally formed with the support area, distributing centrifugal forces throughout the entire monolithic structure rather than concentrating them on a single screw connection.
Solution Approach 2:
The support area is segmented to include multiple end wall sections that are integrally formed, distributing the structural load and chip containment function across multiple integrated elements rather than relying on a single screw-connected component.
3Reliability
If a chip deflector cover is used, then chip containment is improved, but assembly time increases and manufacturing costs rise
Solution Approach 1:
The chip containment function is merged into the monolithic support area structure itself through integrally formed end wall sections. This eliminates the need for separate assembly of a chip deflector cover, reducing assembly time and manufacturing complexity while maintaining effective chip containment.
Solution Approach 2:
The monolithic support area serves multiple functions: it provides structural support for the cutting elements, contains chips through its integrally formed end wall sections, and eliminates the need for separate chip deflector components. This multi-functionality reduces overall assembly complexity and time.
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 effectively prevents chip jamming, allows higher speed operation, reduces production costs, and minimizes maintenance by ensuring reliable chip removal and secure attachment of cutting elements, enhancing machining efficiency and reducing assembly complexity.
Implementation Method 1
when the cutting tool is at a standstill, meaning centrifugal force-assisted chip removal in the chip flutes is no longer possible
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
Milling tool (1) having an end face (2), several cutting elements (3) and a monolithic support area (4), wherein each of the cutting elements (3) is attached to the support area (4) and is arranged and designed for end-face cutting, wherein several chip grooves (6) are recessed into the support area (4), each of which is opened at the end face by an entry gap (7) opposite one of the cutting elements (3) and is covered at the end face by an end wall section (8) that monolithically continues the support area (4).