Multiple piece torch tip

摘要: A multiple piece torch tip and a method of making tip. The comprises an inner disposed interchangeably within outer piece. surface the has plurality regularly spaced slots which decrease in size radially outward combine with smooth exterior to form preheat orifices. swaging step one forms In tubular blank is swaged about ribbed mandrel. mandrel presents monotonically decreasing radial cross-sectional area respect for facilitating removal without damage thereto. Also provided forming such that orifice configurations.