Adjustable Cutter Angles for Superhard Tip Damage Prevention
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Solution Overview
Problem
Cutters for machining difficult-to-machine materials like Inconel, titanium, and high manganese steel frequently suffer damage due to high hardness and toughness, leading to suboptimal performance and frequent replacement of superhard insert tips.
Innovation Solution
A cutter apparatus with an angle adjusting unit that includes a wedge member and fixing bolt, allowing for the easy adjustment of cutting edge angles by spreading or retracting the cutters, thereby optimizing the cutting condition for superhard insert tips and preventing damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the superhard insert tip is made tougher by adjusting cobalt content or changing cutting edge, then damage resistance improves, but cutting performance and adaptability to different materials deteriorates
Solution Approach 1:
The cutter is designed with a rotatable structure that allows dynamic adjustment of the cutting edge angle relative to the workpiece. The angle adjusting unit enables the cutter to adapt its orientation during machining operations, transforming a static tool into a dynamic system that can optimize cutting conditions for different materials without requiring multiple specialized inserts.
Solution Approach 2:
The invention changes the geometric parameter (cutting edge angle) of the tool by rotating the cutter body. This parameter adjustment allows the same superhard insert tip to maintain optimal performance across different difficult-to-machine materials by modifying the angle at which the cutting edge engages the workpiece, rather than changing the insert's material composition.
2Duration of action of moving object
If the superhard insert tip is used multiple times by machining different sides, then tool life extends, but cutting performance degrades when the insert becomes damaged
Solution Approach 1:
When the superhard insert tip becomes damaged on one side, the cutter can be rotated to present a different cutting edge angle or use the same insert from a different orientation. This dynamic repositioning allows continued use of the insert without immediate replacement, extending tool life while maintaining acceptable cutting performance.
3Ease of manufacture
If the cutting edge angle is fixed, then manufacturing simplicity is maintained, but adaptability to different cutting conditions is reduced
Solution Approach 1:
The cutter incorporates a rotatable mechanism with an angle adjusting unit that enables the cutting edge angle to be dynamically changed during operation. This design maintains relatively simple manufacturing while providing adaptability to different cutting conditions through mechanical adjustment rather than requiring multiple specialized tool variants.
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
Enables convenient machining of difficult-to-machine materials by allowing for simple adjustment of cutting edge angles, reducing damage to superhard tips and extending their usable life.
Implementation Method 1
The angle adjusting unit may further include a wedge member which is installed between the cutters and adjusts the angles of the cutters in accordance with a vertical movement amount of the wedge member.
Implementation Method 2
The fastening portion of the cutting tool body may be provided as a screw fastening hole, and the angle adjusting unit may further include a fixing bolt which is screw-coupled to the screw fastening hole of the cutting tool body and installed to penetrate the center hole of the wedge member.
Implementation Method 3
The cutter may be rotatably installed on the cutting tool body by means of a hinge.
Data Source
AI summary
Provided is a cutter apparatus for machining a difficult-to-machine material, the cutter apparatus including: a cutting tool body which has a fastening portion formed at a center thereof; one or more cutters which are installed on the cutting tool body, and have superhard insert tips fixed to end portions thereof, respectively; and an angle adjusting unit which is installed in an internal space of the cutters, and adjusts angles of the cutters by spreading or retracting the cutters, so that angles of the cutters may be easily adjusted in accordance with a condition for cutting a difficult-to-machine material, in order to prevent damage to the superhard insert tips when machining a difficult-to-machine material having high hardness and high toughness.