TY - JOUR AU - Baig, Amjad AU - Jaffery, Syed Husain Imran AU - Khan, Muhammad Ali AU - Alruqi, Mansoor TI - Statistical Analysis of Surface Roughness, Burr Formation and Tool Wear in High Speed Micro Milling of Inconel 600 Alloy under Cryogenic, Wet and Dry Conditions JF - MICROMACHINES J2 - MICROMACHINES-BASEL VL - 14 PY - 2023 IS - 1 PG - 20 SN - 2072-666X DO - 10.3390/mi14010013 UR - https://m2.mtmt.hu/api/publication/33891699 ID - 33891699 AB - Super alloys offer excellent mechanical and chemical properties at elevated temperatures that make them an attractive choice for aerospace, automotive and chemical processing, and marine applications. These alloys are, however, difficult to machine due to their high strength at elevated temperatures, low thermal conductivity and work hardening. In this study, micro milling of Inconel 600 super alloy has been carried out and the effects of the key input parameters (cutting speed, feed rate, depth of cut) on response parameters (burr formation, surface roughness and tool wear), under various cooling conditions (dry, wet and cryogenic), have been analyzed. High speed micro milling (range up to 80,000 RPM) was carried out, while keeping the feed rate values below and above the cutting edge radius. The Taguchi design of experiments was used during this study. The results have been analyzed using SEM and 3D optical microscopy. Analysis of Variance (ANOVA) revealed that the best surface roughness values can be achieved under cryogenic machining condition with an overall contribution ratio of 28.69%. It was also revealed that cryogenic cooling resulted in the highest tool life with the contribution ratio of cooling conditions at 26.52%. LA - English DB - MTMT ER - TY - JOUR AU - Balázs, Barnabás Zoltán AU - Takács, Márton TI - Finite element simulation of micro-milling of hardened tool steel JF - IOP CONFERENCE SERIES: MATERIALS SCIENCE AND ENGINEERING J2 - IOP CONF SER MATER SCI ENG VL - 1246 PY - 2022 IS - 1 PG - 7 SN - 1757-8981 DO - 10.1088/1757-899X/1246/1/012019 UR - https://m2.mtmt.hu/api/publication/33061370 ID - 33061370 AB - The demand for miniature components has been growing steadily in recent years. One of the most important technologies to produce such small components is micro-milling. Although the technology is highly researched, there are still many difficulties due to the size reduction, which makes the finite element simulation, as well as the exploration of cutting process challenging. The aim of the research was to investigate the micro-milling process, especially those features, that can be measured very complicated due to the small sizes at the experiments, such as the cutting temperature, and stresses, by means of finite element simulation. The results show that the cutting temperatures are smaller than in the case of conventional size machining, moreover, the stresses do not show significant changes during the cutting edge impact. Finally, the results were validated by the experimental results through comparing cutting force components, which shows a good agreement. LA - English DB - MTMT ER - TY - JOUR AU - Balázs, Barnabás Zoltán AU - Geier, Norbert AU - Poór, Dániel István AU - Pereszlai, Csongor AU - Takács, Márton TI - A fogásmélység hatása a mikroméretű forgácsleválasztás dinamikai sajátosságaira JF - GRADUS J2 - GRADUS VL - 8 PY - 2021 IS - 1 SP - 266 EP - 271 PG - 6 SN - 2064-8014 DO - 10.47833/2021.1.ENG.007 UR - https://m2.mtmt.hu/api/publication/32003411 ID - 32003411 N1 - K 132430 "Tranziens deformációs, termikus és tribológiai folyamatok kemény fémfelületek finomforgácsolásánál" ÚNKP-20-3 ÚNKP-20-2 LA - Hungarian DB - MTMT ER - TY - JOUR AU - Balázs, Barnabás Zoltán AU - Geier, Norbert AU - Takács, Márton AU - Davim, J. Paulo TI - A review on micro-milling: recent advances and future trends JF - INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY J2 - INT J ADV MANUFACT TECHNOL VL - 112 PY - 2021 IS - 3-4 SP - 655 EP - 684 PG - 36 SN - 0268-3768 DO - 10.1007/s00170-020-06445-w UR - https://m2.mtmt.hu/api/publication/31793490 ID - 31793490 N1 - Department of Manufacturing Science and Engineering, Faculty of Mechanical Engineering, Budapest University of Technology and Economics, Budapest, Hungary Department of Mechanical Engineering, University of Aveiro, Aveiro, Portugal Cited By :21 Export Date: 10 May 2022 CODEN: IJATE Correspondence Address: Balázs, B.Z.; Department of Manufacturing Science and Engineering, Hungary; email: balazs@manuf.bme.hu AB - Recently, mechanical micro-milling is one of the most promising micro-manufacturing processes for productive and accurate complex-feature generation in various materials including metals, ceramics, polymers and composites. The micro-milling technology is widely adapted already in many high-tech industrial sectors; however, its reliability and predictability require further developments. In this paper, micro-milling related recent results and developments are reviewed and discussed including micro-chip removal and micro-burr formation mechanisms, cutting forces, cutting temperature, vibrations, surface roughness, cutting fluids, workpiece materials, process monitoring, micro-tools and coatings, and process-modelling. Finally, possible future trends and research directions are highlighted in the micro-milling and micro-machining areas. LA - English DB - MTMT ER - TY - JOUR AU - Balázs, Barnabás Zoltán AU - Takács, Márton TI - Experimental investigation of the influence of cutting parameters on surface quality and on the special characteristics of micro-milled surfaces of hardened steels JF - PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART C-JOURNAL OF MECHANICAL ENGINEERING SCIENCE J2 - P I MECH ENG C-J MEC VL - 235 PY - 2021 IS - 23 SP - 6996 EP - 7008 PG - 13 SN - 0954-4062 DO - 10.1177/09544062211013064 UR - https://m2.mtmt.hu/api/publication/32021005 ID - 32021005 N1 - Funding Agency and Grant Number: NRDI Fund (TKP2020 NC) by the NRDI Office under Ministry for Innovation and Technology [BME-NC]; National Research, Development and Innovation Office (NKFIH)National Research, Development & Innovation Office (NRDIO) - Hungary [ED_18-22018-0006, OTKA-K-132430, UNKP-20-3] Funding text: The authors are grateful to the Bohler and Fraisa companies for their support and to Adam Jacso, Balazs Zsolt Farkas, Miklos Toth, Eva Fazakas, and Janos Endre Maroti for the assistance during the research. The authors would like to thank Szechenyi Istvan University, especially for Tamas Ibriksz and Hajnalka Hargitai for their assistance in confocal microscopic examinations. The research reported in this article has been partly supported by the NRDI Fund (TKP2020 NC, Grant No. BME-NC) based on the charter of bolster issued by the NRDI Office under the auspices of the Ministry for Innovation and Technology. This research was partly supported by the National Research, Development and Innovation Office (NKFIH) No. ED_18-22018-0006, OTKA-K-132430, and UNKP-20-3. LA - English DB - MTMT ER -