Kriswanto, - (2020) Optimization of CNC Milling Machining Time through Variation of Machine Parameters and Toolpath Strategy in Various Cross-sectional Shape on Tool Steels and Die Steels Materials. Proceedings of the 7th Engineering International Conference on Education, Concept and Application on Green Technology, 7. pp. 84-92. ISSN 978-989-758-411-4

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Abstract

CNC machines are manufacturing machines for mass products that required to operate quickly. Machining Time efficiency will reduce production costs. This paper presents an optimization of CNC milling Machining Time from a variations of machine parameters, toolpath strategy and variations in cross sectional shapes. The method is simulation use simulation software and optimization with constraint machining time. The program is based on parameters (speed, feed rate, and width of cut) for pocket roughing operations. The cross section shape of the workpiece is rectangular with 5 variation size. The width of cut for roughing work is 30%, 50%, and 80%. Endmill uses a diameter of 12 mm and 4 flutes. The optimal machining time value in each cross section workpiece is generated from the zigzag toolpath strategy and 80% width of cut. The optimum Machining Time of W1 is 3 minutes 11 seconds, W2 is 5 minutes 55 seconds, W3 is 12 minutes 25 seconds, W4 is 5 minutes 18 seconds and w5 is 12 minutes 19 seconds. The toolpath strategy that produces the largest Machining Time high speed and true spirals toolpath strategy.

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