Purpose – The purpose of this paper is to investigate the exposure of human workers to low and high frequency electromagnetic fields during operation of GMAW‐P welding machines.Design/methodology/approach – First, a numerical parametric analysis of the current waveform has been performed in Matlab, with reference to the human exposure; then a simulation model of a full welding system has been implemented in Simulink/Matlab. The effect has been numerically quantified accordingly to European Standards EN 50444 and EN 50445.Findings – Contributions to human exposure of specific parts of the current waveform have been evaluated. A new numerical implementation of a full welding system has been done.Practical implications – The paper shows that there could possibly be improvement in the design of current waveforms, with respect to a reduced human exposure of workers to electromagnetic fields.Originality/value – The paper presents a new numerical tool that can be useful since the design phase of a welding system...
[1]
A. Ahlbom.
Guidelines for limiting exposure to time-varying electric, magnetic, and electromagnetic fields (up to 300 GHz)
,
1998
.
[2]
C. Wu,et al.
Effect of current waveforms on metal transfer in pulsed gas metal arc welding
,
2005
.
[3]
Prasad K. Yarlagadda,et al.
Advancements in pulse gas metal arc welding
,
2005
.
[4]
Prasad K. Yarlagadda,et al.
Arc Voltage Behaviour of One Drop Per Pulse Mode in GMAW-P
,
2006
.
[5]
Prasad K. Yarlagadda,et al.
Arc voltage behavior in GMAW-P under different drop transfer modes
,
2009
.
[6]
Paolo Mattavelli,et al.
Parametric analysis of GMAW-P waveforms for the derivation of human exposure values
,
2011
.