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介绍了穿孔顶头的工作条件和主要失效形式，以及新型穿孔顶头的设计。确定了顶头的生产工艺。使用结果表明，新型穿孔顶头在穿孔中能保持良好的流线型外形，产生光滑的再生氧化层，防止塌鼻失效，提高了使用寿命。
The working conditions and the main failure modes of the perforated head are introduced, and the design of the new perforated head is introduced. Determine the head of the production process. The results show that the new perforation head can maintain a good streamlined shape in the perforation, resulting in a smooth regenerated oxide layer, preventing collapse of the nose and improving the service life.