Patent ID: 8395077

Claim:
A torch tip for a plasma arc torch, the torch tip having a longitudinal axis and comprising: a nozzle comprising a nozzle body including a substantially hollow interior and a substantially conical exterior portion, the substantially conical exterior portion having a nozzle half-cone angle selected from a first range of about 20 degrees to about 60 degrees, the nozzle body defining an exit orifice disposed on an end face of the nozzle, the exit orifice being defined by an orifice diameter (D), an orifice length (L), and a nozzle end face diameter (φ 1 ), wherein a φ 1 to D ratio is greater than or equal to 1.9; and a shield comprising a shield body defining a shield exit orifice having a shield exit orifice diameter (φ 2 ), the shield body including a substantially conical interior portion having a shield half-cone angle, the shield half-cone angle being substantially equal to the nozzle half-cone angle, the shield being mounted in a spaced relation to the nozzle relative to the longitudinal axis of the torch tip such that a fluid passageway is formed in a space between the substantially conical interior portion of the shield and the substantially conical exterior portion of the nozzle.