Generation of Regularly Aligned Dimples on Triangular Pyramidal Patches Using Patch Division Milling
Kai Xu and Hiroyuki Sasahara
Department of Mechanical System Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Nakacho, Koganei, Tokyo 184-8588, Japan
Textured surfaces play a decisive role in the development of many advanced fields. This study describes a new strategy for efficiently machining textured surfaces with regularly aligned cutter marks on a certain surface using a ball-end milling technique. This technique is called triangular pyramidal patch division milling, and it divides the target surface into many small triangular pyramidal patches. Each patch is generated using a helical tool path that rounds the restructured triangular pyramidal patch with variable distances. With this method, regularly aligned dimples can be formed by controlling the cross feed, feed speed, spindle speed, number of teeth, and side length of patch. Because the tops of patches are on the target surface, they cover the whole surface for obtaining higher precision and better surface properties. To predict the state of dimple alignment on an entire freeform surface, a 3D simulator is derived from 2D simulation by using Pro/E, a software application. According to the simulation result, regularly aligned dimples can be generated on the freeform surface by selecting suitable machining conditions. When textured surfaces are machined using ball-end mill and machining center, triangular pyramidal patch division milling technique is a very effective method.
-  K. Tozawa, Y. Kobayashi, and K. Shirai, “Development of Surface Texturing System by Mechanical Machining,” Journal of the Japan Society for Precision Engineering, Contributed Papers, Vol.71, No.7, pp. 879-884, 2005 (in Japanese).
-  A. A. G. Bruzzone, H. L. Coata, and P. M. Lonardo, “Advances in Engineered Surfaces for Functional Performance,” CIRP Annals-Manufacturing Technology, Vol.57, pp. 750-769, 2008.
-  X. Wang, K. Adachi, and K. Otsuka, “Optimization of the Surface Texture for Silicon Carbide Sliding in Water,” Applied Surface Science, Vol.253, pp. 1282-1286, 2006.
-  C. J. Evans and J. B. Bryan, ““Structured,” “Textured” or “Engineered” Surfaces,” Annals of the CIRP, Vol.48, No.2, pp. 541-556, 1999.
-  A. Kovalchenko, O. Ajayi, and A. Erdemir, “Friction and Wear Behavior of Laser Textured Surface under Lubricated Initial Point Contact,” Wear, Vol.271, pp. 1719-1725, 2011.
-  V. Franzen, J. Witulski, A. Brosius, and M. Trompeter, “Textured Surfaces for Deep Drawing Tools by Rolling,” International Journal of Machine Tool & Manufacture, Vol.50, pp. 969-976, 2010.
-  X. Wang, W. Liu, and F. Zhou, “Preliminary Investigation of the Effect of Dimple Size on Friction in Line Contacts,” Tribology International, Vol.42, pp. 1118-1123, 2009.
-  F. Alam, T. Steiner, and H. Chowdhury, “A Study of Golf Ball Aerodynamic Drag,” Procedia Engineering, Vol.13, pp. 226-231, 2011.
-  C. Dong, Y. Gu, and M. Zhong, “Fabrication of Superhydrophobic Cu Surfaces with Tunable Regular Micro and Random Nano-scale Structures by Hybird Laser Texture and Chemical Etching,” Journal of Materials Processing Technology, Vol.211, pp. 1234-1240, 2011.
-  J. Bico, U. Thiele, and D. Quere, “Wetting of Textured Surfaces, Colloids and Surfaces A,” Physicochemical and Engineering Aspects, Vol.206, pp. 41-46, 2002.
-  L. Zhu, Y. Feng, and X. Ye, “Tuning Wettability and Getting Superhydrophobic Surface by Controlling Surface Roughness with Welldesigned Microstructures,” Sensors and Actuators A, Vol.130-131, pp. 595-600, 2006.
-  S. G. Scholz, C. A. Griffiths, and S. S. Dimov, “Manufacturing Routes for Replicating Micro and Nano Surface Structures with Bio-mimetic Applications,” CIRP Journal of Manufacturing Science and Technology, Vol.4, pp. 347-356, 2011.
-  T. Sugihara and T. Enomoto, “Development of a Cutting Tool with a Nano/micro-textured Surface-Improvement of Anti-adhesive Effect by Considering the Texture Patterns,” Precision Engineering, Vol.33, pp. 425-429, 2009.
-  H. S. Shin, D. K. Chung, and M. S. Park, “Analysis of Machining Characteristics in Electrochemical Etching Using Laser Masking,” Applied Surface Science, Vol.258, pp. 1689-1698, 2011.
-  H. S. Shin, M. S. Park, and C. N. Chu, “Electrochemical Etching Using Laser Masking for Multilayered Structures on Stainless Steel,” CIRP Annals-Manufacturing Technology, Vol.59, pp. 585-588, 2010.
-  E. Brinksmeier, Y. Mutlugunes, and F. Klocke, “Ultra-precision Grinding,” CIRP Annals-Manufacturing Technology, Vol.59, pp. 652-671, 2010.
-  H. Hocheng and T. T. Wen, “Submicron Imprint of Trench Structures by External and Intrinsic Electromagnetic Force,” CIRP Annals-Manufacturing Technology, Vol.59, pp. 263-266, 2010.
-  J.-S. Chen, Y.-K. Huang, and M.-S. Chen, “A Study of the Surface Scallop Generating Mechanism in the Ball-end Milling Process,” International Journal of Machine Tool & Manufacture, Vol.45, pp. 1077-1084, 2005.
-  A. M. Ramos, C. Relvas, and J. A. Simoes, “The Influence of Finishing Milling Strategies on Texture, Roughness and Dimensional Deviations on the Machining of Complex Surface,” Journal of Materials Processing Technology, Vol.136, pp. 209-216, 2003.
-  H. Matsuda, H. Sasahara, and M. Tsutsumi, “Generation of a Regularly Aligned Surface Pattern and Control of Cutter Marks Array by Patch Division Milling,” International Journal of Machine Tool & Manufacture, Vol.48, pp. 84-94, 2008.
-  A. Saito, X. Zhao, and M. Tsutsumi, “Control of Surface Texture of Mold Generated by Ball-end Milling,” Journal of the Japan Society for Precision Engineering, Vol.66, No.3, pp. 419-423, 2000 (in Japanese).
-  H.-Y. Feng and H. Li, “Constant Scallop-height Tool Path Generation for Three-axis Sculptured Surface Machining,” Computer-Aided Design, Vol.34, pp. 647-654, 2002.
-  C. Stodke and P. Stephap, “Spray Cooling onMicro-Structured Surfaces,” International Journal of Heat and Mass Transfer, Vol.50, pp. 4089-4097, 2007.
-  F. Puente Leon, C. Lindner, and D. van Gorkorn, “Surface Segmentation by Variable Illumination,” Annals of the CIRP, Vol.56, pp. 549-552, 2007.
-  M. Fukuda, H. Sasahara, and H. Matsuda, “Generation of Geometric Pattern in Arbitrary Triangle Patches by Patch Division Milling,” Journal of the Japan Society for Precision Engineering, Vol.76, No.1, pp. 111-115, 2010 (in Japanese).
-  S. Yuan, W. Huang, and X. Wang, “Orientation Effects of Microgrooves on Sliding Surfaces,” Tribology International, Vol.44, pp. 1047-1054, 2011.