Manufacturing and performance of ceramic/metal matrix composite electrical discharge machining electrodes /

a high thermal conductivity and a high melting point of the

Bibliographic Details
Main Author:	Kim, Eugene Ty
Format:	Thesis eBook
Language:	English
Published:	[Place of publication not identified] : [publisher not identified] ; 1998.
Subjects:	Major mechanical engineering.
Online Access:	Link to OAKTrust copy

Description
Summary:	a high thermal conductivity and a high melting point of the a slight decline in the performance of the electrodes. Voids and a higher thermal conductivity. The sink rate of an EDM as boron. An electron microprobe (EM) was used to study the ceramic have been shown necessary for low wear ratios. ceramic were successfully attempted: (1) the use of alloying ceramics that were previously impossible to infiltrate. Both Cermet electrodes composed of a ceramic such as TiB2, which composite (cermet) electrical discharge machining (EDM) copper, graphite, and W/Cu, and slightly better than Serb/CU- electrode is dependent upon the radiative properties of the electrodes (anodes) were eroded in an EDM machine using a electrodes after EDM. Dot maps, and EDS were used to aid in electrodes have been investigated. The processing techniques electrodes to a lesser degree than did alloying elements such electrodes. elements in the metal infiltrate such as boron or nickel, (2) found to be dependent upon both the ceramic and metal has a high melting point and low thermal conductivity, did infiltrate under non-vacuum environments without cracking was infiltrate. TaC, which was previously impossible to necessary for creating TiB2/Cu, TaC/Cu, TaC/Cu(s), TaC/CuNi, not perform as well as TaC, which has a lower melting point of the above three methods allowed for infiltration of stainless steel workpiece (cathode) and the performance successfully infiltrated. Adding boron to copper resulted in surface of the electrode. The radiative properties were TaC/Al, NbC/Cu, and TiC/CuNi electrodes were developed. The The manufacturing and performance of ceramic/metal matrix the use of a 6% hydrogen in argon environment, and (3) the Three methods of enhancing wetting of the metal to the porous tracked. TiB2/CU was shown to be a superior EDM electrode to understanding the erosion mechanisms of the cermet use of an oxygen getter furnace. Using one or a combination variables - wear ratio, sink rate, and surface finish - were within the microstructure decreased the performance of the
Item Description:	"Major subject: Mechanical Engineering". Vita.
Physical Description:	xviii, 132 leaves : illustrations ; 28 cm. Also available online. Issued also on microfiche from Lange Micrographics.
Bibliography:	Includes bibliographical references: pages 117-120.