Additive Manufacturing Support Device for Stable Wire EDM Cutting
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Solution Overview
Problem
The automatic determination of the shape of the separated portion in additive manufacturing does not consider the ease of cutting, leading to unstable cutting processes and potential wire breakage when using wire electrical discharge machining, due to varying machining allowances.
Innovation Solution
An additive manufacturing support device that generates secondary data for the separated portion based on machining allowance information, optimizing the shape to maintain a constant machining allowance and reduce variability, thereby stabilizing the cutting process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If the shape of the separated portion is determined automatically by an additive manufacturing support device based on shaped article data, then the manufacturing process is efficient and automated, but the machining allowance between the cutting part and the separated portion changes greatly during cutting, leading to unstable cutting
Solution Approach 1:
The patent applies preliminary action by calculating and determining the optimal shape of the separated portion before the additive manufacturing process begins. The system computes the separated portion geometry in advance based on the shaped article data, ensuring that the machining allowance will be appropriate during the actual cutting operation. This pre-calculation approach prevents cutting instability by anticipating and compensating for potential issues before they occur.
2Reliability
If the separated portion shape is optimized to maintain constant machining allowance, then cutting stability improves, but the device complexity increases due to additional calculation requirements
Solution Approach 1:
The patent applies parameter changes by modifying the geometric parameters of the separated portion based on calculated machining allowance requirements. The system adjusts the separated portion shape parameters (such as width, length, or contour) to maintain a substantially constant machining allowance during cutting. This parameter optimization ensures cutting stability while managing system complexity through efficient computational methods.
Data Source
AI summary
An additive manufacturing support device includes reading circuitry that reads shaped article data that is data indicating the three-dimensional shape of a shaped article, first generating circuitry that generates primary data that is data indicating the three-dimensional shape of a primary separated portion provided in a region where a cutting part of a cutting apparatus passes between the plate and the shaped article, and second generating circuitry that generates, based on a machining allowance between the cutting part and an object to be cut in a process in which the cutting part passes between the plate and the shaped article, secondary data for reducing change in the machining allowance.