TiC-SKH51 금속 복합재를 이용한 공작기계 주축 진동 억제에 관한 연구 = Suppression of Machine Tool Spindle Vibration by using TiC-SKH51 Metal Matrix Composite

국문 초록 (Abstract)

고속 가공과 저중량 설계에 대한 수요가 증가함에 따라, 공작기계 주축의 진동 발생 가능성이 증가하고있다. 또한 초정밀 가공에서 주축의 진동은 공작물 표면 형상에 큰 영향을 끼치게 된다. 다양한 가공 공정의 가공정밀도를 향상시키기 위해, 공작기계 주축 진동 문제를 해결하여야 한다. 이 논문에서, 공작기계 주축의 진동 억제를 위해 TiC-SKH51 금속 기지 복합재가 사용되었다. TiC-SKH51 복합재의 동적 특성을 확인하기 위해 충격 망치 시험을 수행하였다. FEA의 모드 분석 결과와 충격 망치 시험 결과를 비교하여 FEA의 신뢰성을 확인한 후, 공작기계 주축 모델의 해석이 실행되었다. FEA 결과로부터 진동 발생 억제를 위해 TiC-SKH51 복합재를 적용한 공작기계 주축이 사용될 수 있음을 확인하였다.

다국어 초록 (Multilingual Abstract)

With increasing demands for high-speed machining and lightweight design of machine tools, increasing likeliness of generation of machine tool spindle vibrations has become an important issue. Spindle vibration has a significant impact on the surface finish of the workpiece in ultra-precision machining. It is necessary to resolve the machine tool spindle vibration in various machining processes to improve machining accuracy. In this paper, a TiCSKH51 metal-matrix composite was used to suppress the vibration of the machine tool spindle. To confirm the dynamic characteristic of the TiC-SKH51 composite, impact hammer tests were conducted. After verifying the reliability of a finite element analysis (FEA) by comparing the results of the impact hammer test with the modal analysis using FEA, the analysis of the machine tool spindle model was performed. The FEA results show that the TiC-SKH51 composite applied machine tool spindle can be utilized to suppress the vibration generation.

참고문헌 (Reference)

1 조승찬, "용융가압함침 공정으로 제조된 고체적률 TiC–Inconel 718 금속복합재료의 미세조직 및 특성" 한국복합재료학회 32 (32): 158-162, 2019

2 김동현, "공작기계용 40,000rpm 고속주축의 정·동적 해석과 최적설계에 관한 연구" 대한기계학회 37 (37): 105-111, 2013

3 이현철, "고강도강에 적용된 경량 차체부품의 정적 및 동적 강성에 관한 연구" 한국자동차공학회 27 (27): 267-272, 2019

4 Savilov, A. V., "Vibration Suppression Methods at High Performance Drilling" 632 : 012108-, 2019

5 Zhang, G. T., "The Lightweight Design of CNC Lathe Spindle Box Based on Topology Optimization" 236-237 : 464-468, 2012

6 Zhang, S. J., "The Effects of Spindle Vibration on Surface Generation in Ultra-precision Raster Milling" 71 : 52-56, 2013

7 Awale, A. S., "Review on High Speed Machining of Hard Material" 2 (2): 517-524, 2015

8 Gagnol, V., "Modal Identification of Spindle-tool Unit in High-speed Machining" 25 (25): 2388-2398, 2011

9 Sulitka, M, "Machine Tool Lightweight Design and Advanced Control Techniques" 30-34, 2008

10 Birk, F., "Lightweight Hybrid CFRP Design for Machine Tools with Focus on Simple Manufacturing" 108 : 3915-3924, 2020

11 Zaeh, M. F., "Improvement of the Static and Dynamic Behavior of a Milling Robot" 9 (9): 129-133, 2015

12 Okada, H., "Effect of Epsilon Martensite on the Damping of High Strength Fe-Cr-Mn Alloys" 370 (370): 519-523, 2004

13 Zhang, S. J., "Dynamic Characteristics of an Aerostatic Bearing Spindle and Its Influence on Surface Topography in Ultra-precision Diamond Turning" 62 : 1-12, 2012

14 Wang, M., "Design and Implementation of Nonlinear TMD for Chatter Suppression : An Application in Turning Process" 50 : 474-479, 2010

15 Oh, N. R., "Characterization of Microstructure and Tensile Fracture Behavior in a Novel Infiltrated TiC-Steel Composite" 112 : 123-127, 2016

16 Wan, S., "Active Damping of Milling Chatter Vibration Via a Novel Spindle System with an Integrated Electromagnetic Actuator" 57 : 203-210, 2019

17 이봉구, "A study on automation of modal analysis of a spindle system of machine tools using ANSYS" 한국산학기술학회 16 (16): 2338-2343, 2015

18 Zhang, S. J., "A Review of Machine-tool Vibration and Its Influence upon Surface Generation in Ultra-precision Machining" 91 : 34-42, 2015

19 Kono, D., "A Machine Tool Motorized Spindle with Hybrid Structure of Steel and Carbon Fiber Composite" 68 (68): 389-392, 2019

20 Arslan, M., "A Decision Support System for Machine Tool Selection" 15 (15): 101-109, 2004