Milling force model for asymmetric end-mills during high-feed milling on AISI-P20
Visualitza/Obre
10.1080/10426914.2021.1944199
Inclou dades d'ús des de 2022
Cita com:
hdl:2117/350152
Tipus de documentArticle
Data publicació2021-06-29
Condicions d'accésAccés obert
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Reconeixement-NoComercial-SenseObraDerivada 3.0 Espanya
Abstract
Manufacturing molds for plastic parts injection are a particular machining domain, where challenging materials, like AISI P20 steel, are forced to satisfy the highest surface quality requirements. Before mirror polishing, milling operation is a common and challenging task due to drilling and milling with the same tool. Thus, special cutting tools, like asymmetric indexable type, are often used. This tool presents two geometrically equal positive inserts – one placed horizontally and the other vertically – for the flexible machining of holes, cavities, floors, and walls. Rough-medium milling operations lead to a complicated relationship between cutting conditions and geometrical tool parameters, making it challenging to balance the tool life of both inserts. The novelty of this work is to propose a model for cutting force prediction with an asymmetric tool to explain the separated behavior of both inserts and determine a better compromise between cutting conditions and tool life. The experimental tests were done for model validation and then wear cutting tests for testing improved cutting conditions. The results predicted by the model proved that by changing the depth of cut from 0.3 mm to 0.8 mm, the wear in both inserts was more balanced, increasing chip volume up to 1.7 times.
CitacióRusso, D.; Sanchez Egea, A.J.; Martinez Krahmer, D. Milling force model for asymmetric end-mills during high-feed milling on AISI-P20. "Materials and manufacturing processes", 29 Juny 2021, p. 1-8.
ISSN1042-6914
Versió de l'editorhttps://www.tandfonline.com/doi/full/10.1080/10426914.2021.1944199
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35-Assymetric_cutting_2021.pdf | Manuscript | 4,268Mb | Visualitza/Obre |