ta#39;\$. TIG WELDING. An arc is struck and maintained between the material to be welded and a tungsten electrode which is virtually non-consumable. ... at a frequency of .100 kHz to 3 MHz while a spark starter uses a high voltage coil similar to that ofa car ignition. ... (replacing BS Z90l Part I l: BS 290]: I990 Part 2 -; Iuientiir stainless steels. ... Fmaquot; additions where required are added to the weld pool separatively either by hand or. in mechanised welding. by a mechanically fed filler wire.
|Title||:||Kempe's Engineer's Year-book|