Chatter Vibration Comparison Between Normal Helix Angle and Variable Helix Angle in End Milling Process Based on Spectrum Analysis


  • Achmad As'ad Sonief Brawijaya University
  • Arda Nur Fauzan Brawijaya University
  • Fachry Azlan Brawijaya University
  • Muhammad Aziz Bashori Brawijaya University



Chatter Vibration, Normal and Variable Helix Angel, End Mill Process, Spectrum Analysis


Chatter vibration in machining processes is often found in cutting processes which will decrease the machining efficiency and the surface quality of the products. Chatter is a relative vibration of the cutting tool and workpiece caused by the fluctuation of cutting force that is concerned to be a self-excited vibration. The variable Helix Angle Cutting tool which has pitch angle variation will also inflict different tooth passing frequencies on the flute that stand contiguous and trim the resonance frequency. This research aims to compare chatter vibrations that occurred between Normal Helix Angle and Variable Helix Angle cutting tool based on spectrum analysis on cutting parameter variety (depth of cut; rotation speed; feed rate milling). The outcome is spectrum analysis can detect the chatter phenomenon, measure the natural frequency (38-42 Hz), and also compare chatter vibrations between two tools appropriately.


MUNOA, J., BEUDAERT, X., DOMBOVARI, Z., ALTINTAS, Y., BUDAK, E., BRECHER, C, & STEPAN, G. 2016 Chatter suppression techniques in metal cutting CIRP Annals, 65 (2):785-808.

SONG, QINGHUA., JU, G., LIU, Z. & AI, X. 2014 Subdivision of chatter-free regions and optimal cutting parameters based on vibration frequencies for peripheral milling process International Journal of Mechanical Sciences. 83:172-183.

WANG, YONG, WANG, T., YU, Z., ZHANG, Y., WANG, Y. & LIU, H. 2015 Chatter Prediction for Variable Pitch and Variable Helix Milling Hindawi Shock and Vibration. 2015:1-9

SONIEF ACHMAD AS'AD, ARDA NUR FAUZAN, FIKRUL AKBAR ALAMSYAH 2018 Evaluation of Aluminum Surface Roughness in the Slot End-Mill Process with Variable Helix Angle International Conference on Mechanical Engineering Research and Application (ICOMERA 2018), IOP Conference Series: Materials Science and Engineering Volume 494, ISBN:9781510884861, Malang, Indonesia.

BALASUBRAMANYAM ER. N., ER. P. GNANA PRAKASH., V.PALVANNAN, ER.M.YUGANDHAR 2015 Effect of Machining Parameters on Surface Roughness of End Milling International Journal for Research in Applied Science & Engineering Technology (IJRASET), Volume 3 Issue II, ISSN: 2321-9653.

KASHYAPI, GAUTAM, SUHAS MOHITE, NACHIKET BELWALKAR. 2015. Formation of Stability Lobe Diagram (SLD) for Chatter Free Milling on Aluminium Alloy Manufacturing Science and Technology India, 3(2): 32-37, 2015.

MEI YONGGANG, RONG MO, HUIBIN SUN & KUN BU 2017 Chatter detection in milling based on singular spectrum analysis The International Journal of Advanced Manufacturing Technology, volume 95, and pages 3475–3486.

NIU, JINBO., DING, Y., ZHU, L. & DING, H. 2017 Mechanics and Multi-Regenerative Stability of Variable Pitch and Variable Helix Milling Tools Considering Runout, Shanghai : Shanghai Jiao Tong University.

YUE CAIXU, HAINING GAO, XIANLI LIU, STEVEN Y. LIANG, LIHUI WANG 2019 A review of chatter vibration research in milling Chinese Journal of Aeronautics, 32(2): 215–242.

YUSOFF, AHMAD R. and NEIL D. SIMS 2011 Optimization of Variable Helix Tool Geometry for Regenerative Chatter Mitigation International Journal of Machine Tools and Manufacture, Volume 51, issue 2, February 2011, pages 133-141.

BALA LULZIM, AFRIM GJELAJ, AVDYL BUNJAKU and AVDI SALIHU. 2012. Surface Roughness of Material Processing during Milling Process. Journal of Mechanics Engineering and Automation 2 (2012) 601-605.