Fabrication of Micro Dimples Pattern Using Ball End Mill

International Conference on Design and Application of Engineering Materials in conjunction with Seminar Nasional Metalurgi dan Material XI (SENAMM)

材料科学;金属学

Bin Zaki, Muhamad Izdhar^1 ; Saptaji, Kushendarsyah^1 ; Ramdan, Raden Dadan^2 ; Kurniawan, Tedi^3

Faculty of Manufacturing Engineering, University Malaysia Pahang, Pekan, Pahang Darul Makmur

26600, Malaysia^1

Faculty of Mechanical and Aerospace Engineering, Institute Technology of Bandung, Indonesia^2

Faculty of Mechanical Engineering, Universiti Malaysia Pahang, Pekan, Pahang Darul Makmur

26600, Malaysia^3

关键词: Ball end mill;    Feed direction;    Geometry measurements;    Laser scanning confocal microscopes;    Micro-dimple;    Theoretical values;    Tilted angle;    Visual observations;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/547/1/012009/pdf
DOI  :  10.1088/1757-899X/547/1/012009

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

In this paper, the effect of workpiece tilt angle and feed direction in producing micro dimple pattern using ball end mill tools were studied. Experiments were conducted using carbide ball end mill tools, aluminium Al 6061-T6 workpiece and using CNC machine. Three workpiece tilt angles are selected 0°30° and 45°; and two feed directions z-axis and x-axis. Visual observations using Scanning Electron Microscope (SEM) and geometry measurements using laser scanning confocal microscope were conducted on the fabricated micro dimple patterns. The results show that the workpiece tilt angle produces less burr at the edge of the dimples compared to without tilt (0°). In addition, the workpiece tilt angle can avoid the formation of undercut at the center of the dimple. The workpiece tilt angle of 30° and z-axis feed direction produced better result compared to 0° and 45° tilt angles with the value of ratio diameter/depth closer to the theoretical value.