Abstract

In this work the calculation of the process temperatures in fusion cutting was carried out based on the power balance approach. Cutting experiments with CO2 and disk lasers were performed on 1, 5 and 8 mm thick cold work tool steel sheets. The experimental, numerical and analytical evaluation of the single terms of the power balance equation allowed the explanation of the observed cut quality differences between disk and CO2 laser cuts. Lower process temperatures calculated by a power balance equation for disk laser cuts lead to the increase of viscosity of molten material. The subsequent increase in difficulty for ejection of the molten material from the cut kerf explains the worse cut quality if compared with CO2 laser cuts. Experimental evidence and theoretical calculations showed that the additional physical mechanisms like plasma formation should be considered in the overall power balance under particular cutting conditions.

Autore Pugliese

• Tricarico Luigi

Tutti gli autori

• L.D. SCINTILLA , TRICARICO L , A. WETZIG , E. BEYER

Titolo volume/Rivista

INTERNATIONAL JOURNAL OF MACHINE TOOLS & MANUFACTURE

Anno di pubblicazione

2013

ISSN

0890-6955

ISBN

Non Disponibile

Numero di citazioni Wos

Nessuna citazione

Ultimo Aggiornamento Citazioni

Non Disponibile

Numero di citazioni Scopus

23

Ultimo Aggiornamento Citazioni

2017-04-23 03:20:56

Settori ERC

Non Disponibile

Codici ASJC

Non Disponibile