Open AccessThe effect of the current pulsation frequency on heat supply results during pulsed current TIG welding in 301L stainless steel
Author(s) -
Małgorzata Ostromęcka,
A. Kolasa
Publication year - 2019
Publication title -
przegląd spawalnictwa
Language(s) - English
Resource type - Journals
eISSN - 2449-7959
pISSN - 0033-2364
DOI - 10.26628/wtr.v91i8.1046
Subject(s) - gas tungsten arc welding , welding , constant current , materials science , metallurgy , current (fluid) , duty cycle , constant (computer programming) , austenite , microstructure , heat affected zone , arc welding , voltage , engineering , electrical engineering , computer science , programming language
The paper presents the influence of pulsation frequency on the results of pulsed current TIG welding based on two criteria: geometric parameters of weld and changes in microstructure. The investigations were carried out for 301L austenitic stainless steel with constant current parameters, constant welding speed, 50% duty cycle ratio and constant heat input. The results were referred to the commonly used methods for measuring the amount of heat input.