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Electrochemical Grinding as Applied to Jet Engine Overhaul
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English
Abstract
Machining problems encountered in the metal cutting of new refractory alloys used in jet engines brought to attention the need for exotic machining processes to handle the new materials. Electrochemical grinding (ECG) was investigated and evaluated by United Air Lines as a possible means of solving this problem.
A description of the ECG process is presented together with illustrations showing particular applications. Advantages of the process are low machining temperature, higher
metal removal rates, low wheel wear, and no burrs. Factors involved in the ECG process affecting work output are diameter of wheel surface, surface speed of the wheel, wheel-gap feed rate, and chemical composition of the electrolyte.
ECG is not used as effectively as it could be primarily due to lack of knowledge about the process as well as lack of trained personnel familiar with the process. Another consideration is the need for R&D to determine metal-electrolyte composition relationships.
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Authors
Topic
Citation
Haberstich, M., "Electrochemical Grinding as Applied to Jet Engine Overhaul," SAE Technical Paper 680662, 1968, https://doi.org/10.4271/680662.Also In
References
- Williams Lynn A. III a. "Electrochemical Grinding," and b. "Functions and Applications of the Wheel."
- Pahlitzsch, G. "Electrolytic Grinding International Research in Production Engineering." ASTME Book Sept. 9-12 1963 242 256
- Faust, C. L. Gurklis, and J. A. Cross, J. A. "Electrochemical Machining and Electrochemical Grinding." International Conference, CIRP. ASTME Book 1967 341 358
- Colwell, L. V. "A Physical Model Of the Electrochemical Process." International Conference CIRP. ASTME Book 1967 365 372
- Opitz and H. Heitman, H. "The Influence of the Working Parameters on the Result in the Electrochemical Machining (ECM, ECG)." International Conference CIRP. ASTME Book 1967 397 416
- Wood and P. A. Hechinger, B. L. "The Future Needs and Current Advances Within the Airlines." SAE Paper 670338