@inproceedings{be9b2d7052d340a7b71d603c443b5f17,
title = "Observations on cutting edge radius effects in cryogenic machining of porous tungsten",
abstract = "Porous tungsten is a refractory metal commonly used to manufacture dispenser cathode pellets. To produce the required geometric shape of a cathode, precision machining of the emitting surface is necessary. Because dry machining leads to excessive tool wear and smearing of surface pores, a plastic infiltrant is used to both prevent smearing and lubricate the cut. In order to develop a sustainable alternative to this plastic infiltration process, infiltrant-free cryogenic machining of porous tungsten has been identified by previous studies to be capable of producing excellent levels of surface porosity [1-3]. Cryogenic cooling during machining of porous tungsten allows for controlled brittle fracture machining, leading to relatively poor surface roughness [3]. Consequently, improving the surface quality of cryogenically machined porous tungsten surfaces is a necessary condition for the successful implementation of this technology.",
keywords = "cryogenic machining, cutting edge radius, dispenser cathode, porous tungsten, surface integrity",
author = "Daniel Busbaher and Julius Schoop and Jawahir, {I. S.} and Balk, {T. John}",
year = "2015",
month = aug,
day = "25",
doi = "10.1109/IVEC.2015.7223754",
language = "English",
series = "Proceedings of 2015 IEEE International Vacuum Electronics Conference, IVEC 2015",
booktitle = "Proceedings of 2015 IEEE International Vacuum Electronics Conference, IVEC 2015",
note = "null ; Conference date: 27-04-2015 Through 29-04-2015",
}