Ebaketa-erramintaren tenperaturak neurtzeko tornuko ebaketa eten bidezko fresaketaren simulazioa

Abstract

Lan honetan zehar fresaketa bidezko simulazioa lantzen da tornuko eba-keta etenaren bitartez. Finkatutako helburu nagusia erremintaren jaulkitze-aurpegian lortuko diren tenperaturak ezagutzea izango da ebaketa prozesuan. Helburu hori lor-tzeko, torneaketa prozesutik fresaketa prozesura estrapolazio bat egingo da, luzeran artekatutako pieza torneatzen bada posible izango dena, torneaketa fresaketa izango balitz bezala simulatuz, fresaketa ebaketa etena denez. Proba-baldintzetan tenperatura-neurketa horiek gauzatzeko K motako termoparea erabiliko da, zein jaulkitze aurpe-giarekiko 0,5 mm-ko distantziara kokaturik egongo den. Bero-transmisiozko modelo teoriko batean oinarrituz kalkulatuko dugu kontaktuko batez besteko tenperatura. Eba-keta-baldintza ezberdinetarako proba ezberdinak garatu dira eta sakontasunez deskriba-tuko ditugu. Horretaz gain, ebaketa jarraituan eta etenean lortuko diren tenperatura-di-ferentziak aztertuko dira, alde batetik, ebaketa-denbora berbera erabiliz eta, bestetik, ebaketa eraginkorraren luzera berbera erabiliz.; In this work, milling simulation through interrupted turning process approx-imation is carried out. The main objective is to obtain cutting tool temperatures in the tool rake surface during the cutting process. In order to obtain these values, the milling process is approximated by the turning process. It is possible to assume this simplifica-tion when a longitudinally grooved workpiece is turned. This way, turning interrupted processes can be equate to milling processes due to milling interrupted cutting singularity. The tests measurements were carried out with a K-type thermocouple located at 0,5 mm from tool insert rake surface. The middle temperature value measured in the contact area will be estimated with a heat conduction theoretical model. Different trails with several cutting conditions are tested. Moreover, temperature difference between continuous and interrupted cutting for the same cutting time and cutting effective length is also studied.