| 摘要 |
<p>A method of securing a tracer cup (26) and fin segments (32, 33) to armor piercing penetrator (21). The penetrator (21) is fabricated of tungsten, or steel, with fin segments (32, 33) and tracer cup (26) being fabricated of steel. The tracer cup (26) contains a pyrotechnic tracer mix (27). The mounting flange (28) of tracer cup (26) is placed over a second boss (24) projecting rearwardly from a first boss (23) at the aft end of the cylindrical body of penetrator (21). A cylindrical sleeve (30) is press fit over the tracer cup (26) and first boss (23), and pre-fabricated fin segments (32, 33) are positioned on the sleeve (30). The fin segments (32, 33), cylindrical sleeve (30), and mounting flange (28) of tracer cup (26) are laser welded to each other and to the first boss (23) of penetrator (20) in one step. Increased laser power is applied to weld a fin segment (32 or 33) to the sleeve (30) and the sleeve (30) to the first boss (23) of the penetrator (20) and the sleeve (30) to the mounting flange (28) of tracer cup (26) compared with the magnitude of the laser power applied to weld a fin vane assembly (32 or 33) to the sleeve (30).</p> |
