The Effect of Spindle Speed and Feed Rate on Hole Diameter of High-Speed Micro-Drilling for Micro-Screen Manufacture

Abstract:

The micro-drill is one of the manufacturing processes that is developing, especially in the electronics, aerospace, pharmaceutical, and automotive industries. This paper describes the results of the high-speed microdrill process in stainless steel. The drilling process is used to make the micro screen. The cutting tool material is tungsten carbide with a diameter of 0.2 mm. Drilling holes arranged in a honeycomb configuration. The machining parameters used are spindle speed of 20,000 rpm, 22,000 rpm, 24,000 rpm, and feed rate of 1 mm/min, 1.5 mm/min, 2 mm/min. Micro-drilling holes are visually analyzed using a Scanning Electron Microscope (SEM) to measure the accuracy of the hole dimensions. The results of the machining process found that the most significant deviation of the hole dimension size with a value of 0.276 mm occurred at a spindle speed of 20,000 rpm with a feed of 1 mm/min. While the deviation of the smallest hole size with a value of 0.2019 mm occurred at a spindle speed of 24,000 rpm with a feed of 2 mm/min, these results conclude that the accuracy of the hole dimensions will increase in proportion to the increase in spindle speed and feeding.

• Periodical: Defect and Diffusion Forum (Volume 402)
• Pages: 125-130
• DOI: https://doi.org/10.4028/www.scientific.net/DDF.402.125
• Online since: July 2020
• Authors: Muhammad Tadjuddin*, Suhaeri Suhaeri, Muhammad Dirhamsyah, Aulia Udink, Fatur Rahmatsyah
• Keywords: High-Speed Microdrill, Hole Diameter, Micro-Screen Machining

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