Welding torch tip and method

A welding torch tip for use in welding ferrous metals with Mapp gas, comprising an elongated body for attachment to a supply line which conducts the gas to the tip, said body having a gas-flow passageway extending through one end thereof and having an outlet end and extending along the longitudinal axis of said one end for the flow of the gas from the tip, said body having a chamber disposed in gas-flow communication with said passageway and being located on said longitudinal axis and of a cross-sectional size greater than the cross-sectional size of said passageway, for guiding the gas to flow through said body, said chamber being shaped to present an end wall of a concave shape extending transversely to the longitudinal axis of said passageway and with the center of the concave shape intersecting said passageway for mixing of the gases flowing through said body, said body having a concave end surface intersecting the gas outlet end of said passageway for directing the gases along the longitudinal axis of said one end, said body having a plurality of additional gas-flow passageways extending therein adjacent and spaced around the first said passageway and being in gas-flow communication with said chamber from said end wall for the flow of the gases from the tip, said additional gas-flow passageways aligned to intersect said concave end surface at locations spaced from the first said passageway at said end surface and having the longitudinal axes of said additional gas-flow passageways being angled inwardly and toward the longitudinal axis of the first said passageway.