On the design and application of hybrid electrical discharge and arc machining process for enhancing drilling performance in Inconel 718
| Autor: | Yoke San Wong, M. Tanjilul, Afzaal Ahmed, M. M. Rahman, A. Fardin, A. Senthil Kumar |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
0209 industrial biotechnology
Materials science Mechanical Engineering Metallurgy 02 engineering and technology Work hardening Industrial and Manufacturing Engineering Computer Science Applications Corrosion 020303 mechanical engineering & transports 020901 industrial engineering & automation Thermal conductivity 0203 mechanical engineering Machining Control and Systems Engineering Electrode Electric discharge Tool wear Inconel Software |
| Zdroj: | The International Journal of Advanced Manufacturing Technology. 99:1825-1837 |
| ISSN: | 1433-3015 0268-3768 |
| DOI: | 10.1007/s00170-018-2515-7 |
| Popis: | In recent years, Inconel 718 is widely used in industries like aerospace, oil and gas, and automobile due to their unique combination of hardness, strength, temperature, and corrosion resistance properties. However, these materials pose challenges during conventional machining due to their high work hardening tendency, poor thermal conductivity, and chemical affinity towards the tool material. Consequently, rapid tool wear during the machining of Inconel 718 results in poor productivity. To overcome these issues, a non-contact hybrid electrical discharge and arc machining (HEDAM) process has been developed to machine such difficult-to-cut materials. Firstly, the design and development of the HEDAM circuit has been discussed. Subsequently, the working principle of the newly developed process has been studied followed by its performance comparison with the conventional EDM process. In addition, the material removal mechanism has also been discussed in detail. Finally, experimental results were reported, where holes were drilled using the developed HEDAM process. The HEDAM process has exhibited significant improvements in terms of material removal rate (MRR) which is around 12 times higher and electrode wear ratio (EWR) that is half when compared to conventional EDM. This high performance HEDAM process resulted in successful and efficient drilling of Inconel 718. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|