IN
41
Operating manual
ARCPULL 350
Translation of the original
instructions
5.1. SURFACE CONDITION OF THE SUPPORT AND STRIPPING PART
The insert welding must be carried out on a support part free of grease. It is also necessary to strip
this support piece if it has a chemical treatment (zinc layer for galvanized steel, anti-corrosive for
steels that have undergone heat treatment, alumina for aluminium).
Welding of inserts, and particularly aluminum parts, must be carried out on a flat support part.
5.2. THICKNESS OF THE SUPPORT PLATE ACCORDING TO THE DIAMETER OF THE STUD
With the exception of specific applications related to automotive bodywork (fitting a pull ring, the thickness of the sup
-
port sheet must not be less than ¼ of the diameter of the base of the insert in the case of steel , and ½ of the diameter
in the case of aluminum.
Examples (non-exhaustive list)
Parts to be welded
(according to ISO 13918)
Base diameter
Minimum sheet thickness
Steel stud type DD M8
8mm
2mm
Steel stud type PD M6
5.35mm
1.3mm
AlMg short time stud type PS M8
9mm
2mm
AlMg short time stud type IS (internal thread) M5
9mm
2mm
5.3. WELD POOL PROTECTION
Depending on the material to be welded, protection of the weld pool by ceramic ferrule or by gas protection may be
necessary.
The table below lists the recommended gas to use depending on the part to be welded and its material. These gases
maximize weld strength and correspond to the gas to be used when the machine is operating in Synergic Mode (see
§8.1).
This table is given as an indication, preliminary welding tests are recommended.
Matter
Welding patch
Ferrule in
ceramic
Gas
Without gas
Aluminum
(Al, AlMg,
AlMgSi)
Aluminum pulling ring
Impossible
Argon
Not recom-
mended
Stud, internal thread stud
Impossible
ArHe 30%
Impossible
Low carbon
steel
(Fe)
Steel pulling ring
Impossible
ArCO² 8%
Possible
Stud, internal thread stud
okay
ArCO² 8%
Not recom-
mended
Copper-plated
steel (FeCu) stud, internal thread stud insulation nail
Impossible
ArCO² 8%
Not recom-
mended