Bidirectional Cutting Tool Path for Carbon Fiber Contour Quality
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Solution Overview
Problem
The machining of carbon fiber skin parts using traditional tools results in issues like fiber delamination, fluffing, and burr generation due to tool wear, leading to low quality and high cost, and bidirectional cutting edge tools are difficult to program for precise control.
Innovation Solution
A tool path generation method for bidirectional cutting edge tools involves creating a machining coordinate system, determining driving and auxiliary lines, discretizing the driving line, and calculating tool position points to ensure both cutting edges cut materials effectively, orienting cutting force towards the contour center, thus preventing delamination and fluffing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional diamond-shaped tooth tools are used for high-speed contour milling of carbon fiber skin, then machining efficiency is improved, but tool wear occurs seriously causing fiber delamination, fluffing, and burr generation
Solution Approach 1:
The patent changes the geometric parameters of the tool by using a bidirectional cutting edge tool with specifically designed tooth shapes and orientations, rather than traditional diamond-shaped teeth. This parameter change allows the tool to maintain cutting effectiveness while reducing harmful effects on the carbon fiber material
Solution Approach 2:
The bidirectional cutting edge tool employs asymmetric tooth configuration where the first and second cutting edges have different orientations and cutting directions. This asymmetry enables optimized cutting force distribution that prevents fiber delamination and fluffing while maintaining high machining efficiency
2Manufacturing precision
If bidirectional cutting edge tool is used for contour milling, then machining quality is improved by preventing delamination and fluffing, but programming difficulty increases due to structural differences from traditional tools
Solution Approach 1:
The bidirectional cutting edge tool is designed with multi-functional cutting edges that can cut in two opposite directions. This universality allows the tool to perform contour milling operations while maintaining consistent cutting quality regardless of the cutting direction, simplifying the overall machining process despite the complex tool structure
3Manufacturing precision
If conservative cutting parameters are used to reduce delamination and fluffing, then machining quality is improved, but machining efficiency decreases significantly
Solution Approach 1:
Instead of using conservative cutting parameters, the patent changes the cutting tool parameters by employing a bidirectional cutting edge tool with optimized tooth geometry. This allows the use of more aggressive cutting parameters while maintaining high machining quality, thus avoiding the efficiency loss associated with conservative parameter selection
Data Source
AI summary
A tool path generation method for a bidirectional cutting edge tool, comprising: first obtaining a driving line and an auxiliary driving line of a contour, and discretizing the driving line to obtain tool position driving points; obtaining a tool axis vector according to a rule plane of the driving points and the auxiliary driving line; and then, calculating a tool position point according to geometric dimensions of the tool so as to obtain a tool path of a machining contour of the bidirectional cutting edge tool. The problems of fiber delamination and fluffing, burr generation, and the like of the contour of a machined part can be avoided, and the machining quality of a contour surface is improved, and the low-cost machining of parts can be efficiently achieved.