Grooving Insert Flushing Channel for Lateral Chip Evacuation
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Solution Overview
Problem
Existing cutting tools face issues with trapped chips during grooving, which impair the machined workpiece's functionality, especially in narrow groove widths and large groove depths, requiring a separate mechanical removal step.
Innovation Solution
A cutting tool design featuring a grooving insert with a flushing channel extending laterally next to the insert, directed towards a fluid outlet, and opened laterally to flush grooves offset from the cutting area, ensuring chips are removed effectively without colliding with the cutting edge.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a coolant bore is arranged in the holder opening laterally next to the cutting insert receptacle, then coolant can be directed towards the cutting insert, but chips become trapped in the grooves and cannot be effectively removed
Solution Approach 1:
The patent extracts the chip removal function from the traditional coolant bore system and creates a separate flushing channel system. The flushing channel extends laterally next to the grooving insert and is opened by a flushing opening, allowing chips to be flushed out laterally from the groove rather than relying on the coolant bore positioned at the holder level.
Solution Approach 2:
The patent introduces a flushing channel as an intermediary structure between the coolant supply and the groove area. This flushing channel acts as a mediator that directs the flushing medium laterally next to the grooving insert, enabling effective chip removal without the flushing medium colliding with the cutting edge.
2Object-generated harmful factors
If a flushing channel extends laterally next to the grooving insert and is opened laterally, then chips can be flushed out effectively, but the flushing medium may collide with the cutting edge
Solution Approach 1:
The patent applies local quality by positioning the flushing opening at a specific lateral location relative to the grooving insert. The flushing channel extends laterally next to the insert and is opened in such a way that the flushing medium is directed precisely where needed (into the groove for chip removal) while avoiding areas where it would cause harm (the cutting edge location).
3Object-generated harmful factors
If mechanical chip removal is performed in a separate step, then trapped chips can be removed, but productivity is reduced and additional time is required
Solution Approach 1:
The patent merges the chip removal function with the grooving operation itself. By providing a flushing channel that operates simultaneously with the grooving insert, the system combines cutting and chip removal into a single integrated process, eliminating the need for separate mechanical chip removal steps and thereby maintaining high productivity.
Solution Approach 2:
The flushing channel enables continuous chip removal throughout the grooving process. The flushing medium continuously flows through the channel and out the flushing opening, maintaining constant chip evacuation capability during the entire grooving operation, which sustains productivity without interruption.
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 tool efficiently removes chips from grooves by flushing them out laterally, maintaining the integrity of the machined surface and eliminating the need for a separate chip removal step, while allowing simultaneous groove creation.
Implementation Method 1
a channel structure (10) having a flushing channel (11) which extends laterally next to the grooving insert (5) and towards the fluid outlet, which is directed at least component-wise towards the front and is opened by a flushing opening (12) laterally next to the grooving insert (5)
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
A cutting tool (1, 61, 65) comprising a grooving insert (5), a base body (3), and a channel structure (10) extending at least partially in the base body (3), wherein the grooving insert (5) is held on the base body (3) and has a cutting area (6) with a free-standing front cutting edge (7) and a chip surface (29) and front flank (19) associated therewith, wherein the base body (3) extends from the front on the flank (19) to the rear, laterally along the front cutting edge (7), and downwardly from the top on the chip surface (29), wherein the channel structure (10) has a flushing channel (11) which extends laterally next to the grooving insert (5) and towards the fluid outlet, which is directed at least component-wise towards the front, and which is opened laterally next to the grooving insert (5) by a flushing opening (12).