kontaktkeevituse protsess/operatsioon liitepindade kuumutamisega neid läbiva vooluga järgneva survejõu rakendamisega, a resistance welding process in which the weld is produced, simultaneously over the entire area of abutting surfaces or progressively along a joint, by applying mechanical force (pressure) to the joint, then causing electrical current to flow across the joint to heat abutting surfaces; pressure is maintained throughout the heating period