Wire EDM Core Separation Using Claw Parts to Prevent Wire Breakage
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Solution Overview
Problem
In wire discharge machining, divided cores can move inside the machining groove, causing disconnection of the wire electrode and preventing proper collection, especially when the core is large, leading to issues with machining fluid supply and finishing accuracy.
Innovation Solution
A machining method that forms and machines a claw part on the machining path of the machining groove and dividing line to fix the core in place, allowing for sequential separation and removal of divided cores without disrupting the machining process, ensuring proper fluid supply and preventing electrode disconnection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the core is divided into multiple pieces for removal, then the core can be removed from large workpieces, but the divided cores move inside the machining groove causing wire electrode disconnection
Solution Approach 1:
The claw part is formed on the workpiece before core removal operations. This preliminary structural preparation provides predetermined engagement points that constrain core movement throughout the subsequent machining process, preventing disconnection issues while enabling divided core removal
Solution Approach 2:
The claw part acts as an intermediary structure between the workpiece and the divided cores. It provides engagement surfaces that hold the cores in place during machining, mediating between the need to remove large cores and the need to prevent their movement
2Productivity
If the core is divided and removed in order, then large cores can be extracted, but unremoved cores enter the space created by removed cores and cannot be properly collected
Solution Approach 1:
The claw part structure is prepared in advance with specific geometric features that guide core positioning. The engagement surfaces and constraints are predetermined to maintain proper core arrangement during sequential removal, making collection operations straightforward
Solution Approach 2:
The claw part provides localized engagement features at specific positions where cores need to be held. Different regions of the claw part have tailored geometries that correspond to specific core positions, ensuring each core remains properly positioned for its intended removal operation
3Productivity
If machining fluid jets into the space created by core removal, then cooling and flushing occur, but machining fluid supply to the machining gap is disrupted and finishing accuracy deteriorates
Solution Approach 1:
The claw part structure is formed beforehand to maintain proper spacing and positioning relationships. This preliminary structural arrangement ensures that machining fluid flow paths are preserved and that the machining gap remains accessible even during core removal operations
Solution Approach 2:
The爪 part structure preemptively counteracts the potential disruption of machining fluid supply. By maintaining structural integrity and proper spacing, it prevents the scenario where removed cores create blockages or alter fluid dynamics in harmful ways
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
This method enables reliable and automatic removal of divided cores, preventing electrode disconnection and ensuring proper machining fluid supply, thereby improving machining accuracy and efficiency.
Implementation Method 1
discharge machining is performed by generating discharge between the poles formed between the machining electrode and the workpiece
Data Source
AI summary
The disclosure provides a machining program generating device of a wire discharge machine, a machining program generating method, a wire discharge machining system and a machined object manufacturing method. The machining method of the wire discharge machine of the disclosure includes: a processing of forming and machining a claw part on at least one of a machining path of a machining groove and a machining path of a dividing line for dividing a core that forms an inner part of a workpiece separated by the machining groove; and a processing of separating the core from the workpiece by dividing at the dividing line.