EN
41
Operating manual
ARCPULL 350
Translation of the original
instructions
5.1. THE SUPPORT PART’S SURFACE CONDITION AND CLEANING METHOD
Welding consumables must be carried out on a grease-free support part. It is also necessary to
clean this support part if it has been chemically treated (a zinc coating for galvanised steel, an anti-
corrosive coating for heat-treated steel and alumina for aluminium).
Welding consumables, particularly aluminium ones, must be performed on a flat support surface.
5.2. SUPPORT PLATE THICKNESS DEPENDING ON THE STUD’S DIAMETER
With the exception of specific applications related to car bodywork (setting up pulling rings. etc.), the support sheet’s
thickness must not be less than one quarter of the consumable’s base diameter for steel, and half of the diameter for
aluminium.
Examples (non-exhaustive list)
Parts to be welded
(in accordance with ISO 13918)
Base diameter
Minimum sheet thickness
DD-type steel stud
(M8)
8 mm
2 mm
PD-type steel stud (M6)
5.35 mm
1.3 mm
PS short-term stud AlMg (M8)
9 mm
2 mm
IS short-term stud (internally thread) (M5)
9 mm
2 mm
5.3. PROTECTING THE WELD POOL
Depending on the material to be welded, it may be necessary to protect the weld pool with a ceramic ferrule or gas
shielding.
The table below lists the recommended gas to use depending on the workpiece and its material. These gases are
used to make the weld stronger and correspond to the gas that should be used when the machine is operating in
SYNERGY mode (see section 8.1).
This table is given as an example, prior welding tests are recommended.
Material
Welding consumables
Ferrule
(ceramic)
Gas shielding
Without gas
shielding
Aluminium
(Al, AlMg and
AlMgSi)
Aluminium pulling ring
Impossible
Argon
Not recommended
Studs, internally threaded studs
Impossible
ArHe 30%
Impossible
Casing clip block
Impossible
ArHe 30%
Impossible
Low-carbon
steel (Fe)
Steel pulling ring
Impossible
ArCO² 8%
Possible
Studs, internally threaded studs
OK
ArCO² 8%
Not recommended
Cop-
per-plated
steel
(FeCu)
Stud, internal threaded stud, insulation
nail
Impossible
ArCO² 8%
Not recommended