A Study on Single Discharge Machining with Low Melting Temperature Alloy (1st report)-The Relationship between removal volume of crater and single discharge conditions

Autor:	Hideki Takezawa, Naotake Mohri, Hirotaka Kokubo, Kenichiro Horio
Rok vydání:	2008
Předmět:	Materials science Alloy Metallurgy Liquid dielectric chemistry.chemical_element engineering.material Tungsten Electrical discharge machining Impact crater Volume (thermodynamics) Machining chemistry Melting point engineering
Zdroj:	Denki Kako Gakkaishi. 42:5-11
ISSN:	1881-0888 0387-754X
DOI:	10.2526/jseme.42.5
Popis:	Recently, amongst the various electrical discharge machining (EDM) processes, the number of micro-EDM applications has been increasing owing to the small reaction forces involved. However, the mechanism of material removal in a single discharge using a dielectric fluid is not yet fully understood. In this study, a low-melting-temperature alloy (melting point:47Celsius), that is expected to generate a larger than usual removal volume for each discharge, is used. Through the observation of the craters generated on the low-melting-temperature alloy under each discharge condition, the mechanism of material removal is investigated. Single-discharge experiments on the low-melting-temperature alloy using tungsten electrodes of 0.1mm diameter, were carried out in kerosene oil or de ionized water. The experimental parameters were electrode polarity, discharge current and pulse duration. From the results of these experiments, the relationships between the removal volume of the discharge crater and the single-discharge conditions are elucidated.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e0caabb28228068d28afea745d430f58 https://doi.org/10.2526/jseme.42.5 Zobrazit plný text záznamu