FIELD: welding production.
SUBSTANCE: invention relates to the field of welding production and can be used in arc welding with heating of predominantly thin sheet constructions of steels prone to hardening. Method includes locally heating the welded parts by an induction heating source, which uses a multi-turn inductor with a high magnetic permeability core, which is placed coaxially on a welding torch made of non-magnetic material.
EFFECT: use of the invention makes it possible to improve the quality of welded joints and to reduce energy consumption for heating.
1 cl, 6 dwg
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