Machining Tool Rake Face Layout for Chip Segmentation
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Solution Overview
Problem
Existing machining tools face difficulties in removing chips from workpieces due to their shape, which can interfere with the operation of the member, and previous techniques like fine longitudinal grooves or ridges struggle to control chip length and removal efficiency.
Innovation Solution
A machining tool with a rake face positioned opposite to the rotational direction, featuring a machining blade with a rake face and grooves that reduce frictional resistance, causing chips to curl and break into smaller pieces as they extend inwardly, facilitating their removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If conventional machining tools are used, then machining operation can be performed, but chips remain in the workpiece and interfere with member operations
Solution Approach 1:
The invention divides chips into multiple smaller segments using a chip subdivision portion with multiple division blades. The chips generated during machining are cut into several pieces by these blades, transforming one large continuous chip into multiple smaller segments that can be easily removed from the workpiece, thereby eliminating chip interference problems.
2Shape
If fine longitudinal grooves or ridges are used to bend chips, then chip shape is restricted, but chip length cannot be controlled and chips become too long
Solution Approach 1:
Instead of using grooves or ridges that only bend chips, the invention employs division blades that actively cut chips into multiple segments. This segmentation approach directly controls chip length by physically dividing long chips into shorter pieces, achieving both shape restriction and length control simultaneously.
Solution Approach 2:
The invention changes the fundamental mechanism from bending (grooves/ridges) to cutting (division blades). By introducing sharp cutting edges that actively sever chips, the system transforms the chip formation process from passive bending to active segmentation, enabling precise control over chip length parameters.
3Productivity
If chips are generated during machining, then material is removed from workpiece, but chips remain trapped inside workpiece and cannot be easily removed
Solution Approach 1:
The chip subdivision portion with multiple division blades segments trapped chips into smaller pieces that can be easily evacuated from the workpiece. This segmentation enables the chips to be removed through existing chip evacuation paths, maintaining high productivity while eliminating the harmful effect of trapped chips.
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 effectively subdivides chips by reducing friction and promoting oxidation, allowing them to be easily broken and removed from the workpiece, improving the machining process by ensuring chip removal without elongation.
Implementation Method 1
a machining blade with a rake face and grooves that reduce frictional resistance
Implementation Method 2
allowing them to be easily broken and removed from the workpiece, improving the machining process by ensuring chip removal without elongation
Data Source
AI summary
A machining tool is a machining tool rotated about an axis and is provided with a machining blade portion having a rake face and a machining blade, wherein in a case where the rake face faces and is parallel to an virtual plane including the axis, the rake face is arranged at a position shifted from the virtual plane in the direction opposite to the rotational direction of the machining tool.