Abstract
In this study, EDM process was applied to 32CrMoV12-10 (1.7765) high-quality cold work tool steel with a hardness of 50 HRC with different processing parameters. The experimental design of the study was prepared using Taguchi L27 orthogonal array. Processing parameters were used three different electrode materials (copper, graphite, tuncop), three different currents (10, 20, 30 A), three different pulse durations (200, 400, 600 µs), constant cutting depth (1 mm) and constant time off (50 µs). Following the experiments, the hole diameters formed by the electrode materials on the material surface were measured. The results obtained were examined experimentally and statistically. The smallest hole diameter was measured as 12.2085 mm in the experiments carried out with the copper electrode, and the largest hole diameter was measured as 12.5284 mm with the tuncop electrode. When the study was examined statistically (Signal-to-noise ratio), it was determined that the most suitable processing parameters to create the ideal hole diameter were 10 A ampere current and 200 µs pulse duration in copper electrode material. When the analysis of variance (ANOVA) results were examined, it was determined that the most effective machining parameter for the hole diameter was the ampere value of 47.85%.
References
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- Kunieda, M., Lauwers, B., Rajurkar, K. P., & Schumacher, B. M. (2005). Advancing EDM through fundamental insight into the process. CIRP annals, 54(2), 64-87.
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- Özgedik, A. (2014). Modifications applied to the machine, workpiece and electrode in electro discharge machining. Technological Research, 11, 19-38.
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- Saito, K., Kishinami, T., Konno, H., Sato, M., & Takeyama, H. (1986). Development of numerical contouring control electric discharge machining (NCC-EDM). CIRP annals, 35(1), 117-120.
- Salman, Ö., & Kayacan, M. C. (2006). Examination of surface roughness caused by EDM processing of hardened powder metal material. Engineers and Machinery, 47(560), 16-22.
- Singh, S., Maheshwari, S., & Pandey, P. C. (2004). Some investigations into the electric discharge machining of hardened tool steel using different electrode materials. Journal of materials processing technology, 149(1-3), 272-277.
- Springborn, R. K. (1967). Nontraditional machining processes. American Society of Tooland Manufacturing Engineers, Dearborn Michigan, 105-133.
- Yilmaz, V. (2013). Experimental investigation of drillability of micro holes using electro discharge machining (Doctoral dissertation, Ph. D. Thesis, Gazi University Graduate School of Natural and Applied Sciences, Ankara).
- Yilmaz, V., Özdemir, M. & Dilipak, H. (2015). Investigation of the effects of machining parameters on basic performance outcomes in drilling AISI 1040 steel with electro discharge machining method. Journal of Science Design and Technology, 87(1-3), 417-426.
- Yilmaz, V., Özdemir, M., Dilipak, H. & Uzun, G. (2015). Investigation of surface roughness in drilling micro deep holes in Hadfield steel using electro discharge machining method. 2 International Symposium On Innovative Technologies in Engineering oath Science (ISITES), Karabük, Turkey, Jan. 18-20.
Sertleştirilmiş 32CRMOV12-10 Takım Çeliğinin Elektro Erozyon Tezgâhında Delme Performansının İncelenmesi
Abstract
Bu çalışmada, sertliği 50 HRC olan 32CrMoV12-10 (1.7765) yüksek kaliteli soğuk iş takım çeliğine farklı işleme parametreleriyle EDM işlemi uygulanmıştır. Çalışmanın deneysel tasarımı Taguchi L27 ortogonal dizi kullanılıp hazırlanmıştır. Deneylerde işleme parametreleri olarak üç farklı elektrot malzeme (bakır, grafit, tuncop), üç farklı akım (10, 20, 30 A), üç farklı vurum süresi (200, 400, 600 µs), sabit talaş derinliği (1 mm) ve sabit bekleme süresi (50 µs) kullanılmıştır. Yapılan deneylerin ardından elektrot malzemelerin malzeme yüzeyinde oluşturduğu delik çapları ölçülmüştür. Elde edilen sonuçlar deneysel ve istatistiksel olarak incelenmiştir. Çalışma sonucunda tüm elektrot malzemeleriyle yapılan deneylerde en küçük delik çapının 200 µs ve 10 amper akımda, en büyük delik çapının ise tüm elektrot malzemelerinde 600 µs ve 30 amper akımda oluşmuştur. En küçük delik çapının bakır elektrot ile gerçekleştirilen deneylerde 12.2085 mm olarak, en büyük delik çapının ise tuncop elektrot ile 12.5284 mm olarak ölçülmüştür. Çalışma istatiksel (Sinyal-gürültü oranı) olarak incelendiğinde ideal delik çapını oluşturmak için en uygun işleme parametrelerinin bakır elektrot malzemede, 10 A amper akım ve 200 µs vurum süresi olduğu belirlenmiştir. Varyans analizi (ANOVA) sonuçları incelendiğinde ise delik çapı için en etkili işleme parametresinin %47.85 oranında amper değerinin olduğu tespit edilmiştir.
References
- Chen, S. L., Yan, B. H., & Huang, F. Y. (1999). Influence of kerosene and distilled water as dielectrics on the electric discharge machining characteristics of Ti–6A1–4V. Journal of Materials Processing Technology, 87(1-3), 107-111.
- Clijsters, S., Liu, K., Reynaerts, D., & Lauwers, B. (2010). EDM technology and strategy development for the manufacturing of complex parts in SiSiC. Journal of Materials Processing Technology, 210(4), 631-641.
- Dutta, P., Panja, S. C., & Sastry, G. R. K. (2015). An Investigation of Machining Time and Surface Roughness in Wire-EDM for Inconel 800. Applied Mechanics and Materials, 789, 20-24.
- Erdem, S., Özdemir, M., Rafighi, M., & Yavuz, M. (2022). Effect of cutting parameters on surface roughness and cutting forces in hard turning of 1.2367 hot work tool steel. Politeknik Magazine, 1-1.
- Her, M. G., & Weng, F. T. (2001). Micro-hole maching of copper using the electro-discharge machining process with a tungsten carbide electrode compared with a copper electrode. The International Journal of Advanced Manufacturing Technology, 17, 715-719.
- Kunieda, M., Lauwers, B., Rajurkar, K. P., & Schumacher, B. M. (2005). Advancing EDM through fundamental insight into the process. CIRP annals, 54(2), 64-87.
- Mohri, N. (1988). Surface modification by EDM-an innovation in EDM with semi-conductive electrodes. In Proceedings of the Winter annual meeting of the ASME, Chicago, USA (Vol. 34, pp. 21-31).
- Mohri, N., Saito, N., Tsunekawa, Y., & Kinoshita, N. (1993). Metal surface modification by electrical discharge machining with composite electrode. CIRP annals, 42(1), 219-222.
- Nas, E. & Akıncıoğlu, S. (2019). Electro-discharge machining performance optimization of cryogenically treated nickel-based superalloy. Academic Platform- Journal of Engineering oath Science, 7(1), 115-126.
- Nas, E., Özbek, O., Bayraktar, F., & Kara, F. (2021). Experimental and statistical investigation of machinability of AISI D2 steel using electroerosion machining method in different machining parameters. Advances in Materials Science and Engineering, 1-17.
- Özgedik, A. (2014). Modifications applied to the machine, workpiece and electrode in electro discharge machining. Technological Research, 11, 19-38.
- Özlü, B. (2021). Experimental and statistical investigation of the effects of cutting parameters on kerf quality and surface roughness in laser cutting of Al 5083 alloy. Surface Review and Letters, 28(10), 2150093.
- Özlü, B. (2021). Investigation of the effect of cutting parameters on cutting force, surface roughness and chip shape in turning of Sleipner cold work tool steel. Journal of the Faculty of Engineering and Architecture of Gazi University, 36(3), 1241-1251.
- Pekşen, H., & Kalyon, A. (2021). Optimization and measurement of flank wear and surface roughness via Taguchi based grey relational analysis. Materials and Manufacturing Processes, 36(16), 1865-1874.
- Saito, K., Kishinami, T., Konno, H., Sato, M., & Takeyama, H. (1986). Development of numerical contouring control electric discharge machining (NCC-EDM). CIRP annals, 35(1), 117-120.
- Salman, Ö., & Kayacan, M. C. (2006). Examination of surface roughness caused by EDM processing of hardened powder metal material. Engineers and Machinery, 47(560), 16-22.
- Singh, S., Maheshwari, S., & Pandey, P. C. (2004). Some investigations into the electric discharge machining of hardened tool steel using different electrode materials. Journal of materials processing technology, 149(1-3), 272-277.
- Springborn, R. K. (1967). Nontraditional machining processes. American Society of Tooland Manufacturing Engineers, Dearborn Michigan, 105-133.
- Yilmaz, V. (2013). Experimental investigation of drillability of micro holes using electro discharge machining (Doctoral dissertation, Ph. D. Thesis, Gazi University Graduate School of Natural and Applied Sciences, Ankara).
- Yilmaz, V., Özdemir, M. & Dilipak, H. (2015). Investigation of the effects of machining parameters on basic performance outcomes in drilling AISI 1040 steel with electro discharge machining method. Journal of Science Design and Technology, 87(1-3), 417-426.
- Yilmaz, V., Özdemir, M., Dilipak, H. & Uzun, G. (2015). Investigation of surface roughness in drilling micro deep holes in Hadfield steel using electro discharge machining method. 2 International Symposium On Innovative Technologies in Engineering oath Science (ISITES), Karabük, Turkey, Jan. 18-20.
Details
| Primary Language | English |
|---|---|
| Subjects | Mechanical Engineering (Other) |
| Journal Section | Research Articles |
| Authors | |
| Publication Date | December 27, 2023 |
| Submission Date | November 19, 2023 |
| Acceptance Date | December 17, 2023 |
| Published in Issue | Year 2023 Volume: 1 Issue: 1 |
