[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.14702/JPEE.2021.327

A Study on Stress and Deformation through Finite Element Analysis of 2NC Head Processing Controlling AC Axis during 5-Axis Cutting Machine Training in the 4th Industrial Revolution of Machine Tool System

Lee, Ji Woong (Department of Mechanical Engineering, Yeongnam Technical School)

Publication Information

Journal of Practical Engineering Education / v.13, no.2, 2021 , pp. 327-332 More about this Journal

Abstract

Materials used for education include SM20C, Al6061, and acrylic. SM20C materials are used a lot in certification tests and functional competitions as carbon steel, but they are also used in industrial sites. Al6061 is said to be a material that produces a lot of tools because it has lower hardness than carbon steel and is highly flexible. When practical guidance is given to students using acrylic materials, it is a material that causes vibration and tool damage due to excessive cutting. In this process, we examine how impact on the 5-axis equipment 2NC head can affect precision control. The weakest part of a five-axis equipment is the head that controls the AC axis. In the event of precision and cumulative tolerances in this area, the precision of all products is reduced. Thus, a key part of the 2NC head, the spindle housing was carried out using Al7075 T6 (U.S. Alcoasa) material and the entire body using FCD450 (spherical graphite cast iron). In the vibration and cutting process acting on these two materials, the analysis was carried out to determine the value of applying the force as a finite element analysis under extreme conditions. We hope that using these analytical data will help students see and understand the structure of 5-axis machining rather than 5-axis cutting.

Keywords

Vibration; Structural Analysis; Optimization; Machine Tools; Rigidity;

Citations & Related Records

Reference

1	S. G. Kim, "Design optimization of the rib structure of a 5-axis multi-tasking functional machine tool considering the static stiffness," Journal of the Korean Society of Manufacturing Technology Engineers, vol. 25, no. 5, pp. 313-320, 2016. DOI
2	J. S. Kim, "A study on design optimization of 5-axis multi-tasking machine tools considering static and dynamic stiffness," Master's thesis, Graduate School of Mechanical Engineering, Mechanical and Automotive Engineering, Daegu University, August 2021.
3	J. P. Hong, B. C. Gong, S. D. Choi, H. J. Choi, and D. S. Lee, "Study on structure design of high-stiffness for 5-axis machining center," Journal of the Korean Society of Manufacturing Process Engineers, vol. 10, no. 5, pp. 7-12, 2011.
4	H. J. Choi, C. W. Park, E. S. Jang, C. H. Kim, and S. D. Choi, "Design of high speed spindle for 5-axis machining equipment equipped with piezo-electric load sensoring," The Korean Society of Manufacturing Process Engineers, vol. 10, no. 5 , pp. 20-25, 2011.
5	K. I. Lee, "Sphericity evaluation and measurement of the geometric errors for a five-axis machine tool," Doctor dissertation, Graduate School of Mechanical Engineering, Kyungpook National University, 2013.
6	J. B. Park, "A study on the structure design and geometric error calibration of a large gantry type 5-axis machine tool," Master's thesis, Graduate School of Chung buk-do University: Mechanical Engineering (Hospital), August 2013.
7	H. C. Lee, "Integrated analysis and design of interlocking control system for 5-axis CNC machine tools," Master's thesis, Graduate School of Dankook University: Mechanical Engineering and Mechanical Engineering, February 2008.
8	N. H. Kim, "Selection of the optimal machining condition for a high-hardness resin using the 5-axis machine," Journal of the Korean Society of Manufacturing Process Engineers, vol. 11, no. 5, pp. 29-34, 2012.
9	J. S. Park, "A study on the geometric error correction of rotating shaft of 5-axis machine tool using cross-shaped calibrator," Master's thesis, Graduate School of Dankook University: Mechanical Engineering, Production and Control, February 2020.
10	S. K. Kim, "A study on the static and dynamic stiffness prediction of a 5-axis multi-functional machining center with the finite element analysis," Master's thesis, Daegu University: Mechanical Engineering, Mechanical and Automotive Engineering, 2015.
11	S. H. Kim, "Machining precision of 5-axis and 3-axis with rotating table machining center," Master's thesis, Graduate School of Engineering, Incheon National University: Mechanical Engineering, February 2021.