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.