weld bead การใช้

• If there is too much heat input, however, the weld bead grows in width while the likelihood of excessive penetration and spatter increase.
• When welding with metals such as Titanium, a secondary inert shielding gas application is necessary to protect the cooling weld bead and heat-affected zone.
• Within 3 hours ( in cool temperatures ), the putty can be shaped ( with a putty knife or wooden paddle ) into a weld bead or extruded shape.
• Low heat input, caused by low welding current or high welding speed, can limit penetration and cause the weld bead to lift away from the surface being welded.
• Welds made onto weld backing tape can be carried out faster than normal and the weld bead is cast flat onto the glass fibre leaving an acceptable weld profile behind.
• Steel or aluminium door skins and wing / fender edges can generally be adjusted with a hammer and dolly, in extreme cases a pulsed MIG weld bead on a panel edge, that is shaped with a grinder and file, can be good solution.