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Enhancing EDM Productivity for Plastic Injection Mold Manufacturing: An Experimental Optimization Study
Aurel Mihail Titu1, Alina Bianca Pop2
1Industrial Engineering and Management Department, Faculty of Engineering, "Lucian Blaga" University of Sibiu, 10 Victoriei Street, 550024 Sibiu, Romania.
Polymers
|November 9, 2024
Summary
Optimizing electrical discharge machining (EDM) parameters significantly boosts productivity for plastic injection mold manufacturing by up to 61%. This enhancement improves efficiency without compromising the accuracy of complex geometries.
Area of Science:
- Manufacturing Engineering
- Materials Science
Background:
- Electrical discharge machining (EDM) is crucial for creating complex geometries in plastic injection molds.
- EDM productivity directly impacts mold manufacturing time and cost, presenting a significant challenge.
Purpose of the Study:
- To enhance EDM productivity in plastic injection mold manufacturing.
- To optimize processing parameters and strategies for reduced manufacturing time and increased efficiency.
Main Methods:
- Controlled experiments were conducted on a Mitsubishi EA28V Advance die-sinking EDM machine.
- Investigated various pre-cutting parameters and processing strategies using copper electrodes on heat-treated steel.
- Evaluated productivity via material removal volume and geometric accuracy using a coordinate measuring machine.
Main Results:
- Utilizing the "processing speed priority" function increased productivity by up to 61%.
- Optimized parameters resulted in a 12% average reduction in dimensional deviations, improving geometric accuracy.
- Productivity gains were achieved without compromising part quality and accuracy.
Conclusions:
- Optimized EDM parameters and strategies offer substantial productivity improvements for plastic injection mold manufacturing.
- Recommendations are provided for selecting optimal EDM parameters based on specific mold manufacturing requirements.
