Calculating temperature fields in a disc electrode in electroerosion cutting of materials

The treatment of steels and alloys with increased toughness and hardness in conventional metal-cutting machines is associated with considerable difficulties because of high loads on the cutting tool and equipment. The new methods of treatment using electric discharge, in particular, electroerosion t...

Full description

Saved in:
Bibliographic Details
Published in:Welding international 2004-01, Vol.18 (1), p.77-80
Main Authors: Pashatskii, N V, Prokhorov, A V, Obesnyuk, S F
Format: Article
Language:English
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The treatment of steels and alloys with increased toughness and hardness in conventional metal-cutting machines is associated with considerable difficulties because of high loads on the cutting tool and equipment. The new methods of treatment using electric discharge, in particular, electroerosion treatment, ensure the cutting of metals of any hardness without high mechanical loads. In cutting of materials (metallic bars, sheets, structures, etc.), it is recommended to use a disc electrode rotating at a high speed. In most cases, these electrodes are produced from sheet steel. The durability of the electrode determines the reliable and long-term operation of the entire equipment. This is especially important in radiochemical production in the cutting of spend heat-generating assemblies where the access to electroerosion equipment for replacing the tool is restricted in time because of high residual radioactivity. Because of technical difficulties in the measurement of the temperature of the rotating tool, in this work, the authors propose a method of calculating temperature fields, based on an analytical model of heating a disc with a Gauss heat source.
ISSN:0950-7116
1754-2138
DOI:10.1533/wint.2004.3250