M00016456
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ISO FDIS 14373 2014 Edition, October 2, 2014 RESISTANCE WELDING - PROCEDURE FOR SPOT WELDING OF UNCOATED AND COATED LOW CARBON STEELS
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Availability date: 07/14/2021
Description / Abstract:
This International Standard specifies requirements for
resistance spot welding in the fabrication of assemblies of
uncoated and metallic coated low carbon steel, comprising two or
three sheets of metal, where the maximum single sheet thickness of
components to be welded is within the range 0,4 mm to 3 mm, for the
following materials:
— uncoated steels;
— hot-dip zinc or iron-zinc alloy (galvannealed) coated
steel;
— electrolytic zinc, zinc-iron, or zinc-nickel coated steel;
— aluminium coated steel;
— zinc-aluminium coated steel.
This International Standard is applicable to welding of sheets
of the same or dissimilar thickness, where the thickness ratio is
less than or equal to 3:1. It applies to the welding of three
thicknesses, where the total thickness is less than or equal to 9
mm.
Welding with the following types of equipment is within the
scope of this International Standard:
a) pedestal welding equipment;
b) gun welders;
c) automatic welding equipment where the components are fed by
robots or automatic feeding equipment;
d) multi welders;
e) robotic welders.
Information on appropriate welding equipment is given in
Annex A, and information on spot welding conditions is given
in Annex B. This information is provided for guidance
only.
Depending on the service conditions of the fabrication, the type
of welding equipment, the characteristics of the secondary circuit,
the electrode material, and the shape, it is possible that certain
modifications are necessary. In such cases, further information can
be obtained from the relevant application standard, where one
exists.
The welding of organic coated or primer coated steels is not
within the scope of this International Standard.