前言随着船厂技术改造工作的深入进行,我们承担了研究高精度门式切割机的切割工艺任务,其要求是运用组合割嘴来切割V型、Y型、X型坡口,而且切口断面的质量必须满足自动焊拼板的要求。针对这项任务,我们认为:割嘴是保证切口断面质量和提高切割速度的关键。为此,我们就进行了快速精密割嘴的研制工作。为了尽可能保证超音速切割氧孔孔道的型线,我们采用电解铸造工艺来加工割嘴的切割氧 Preface With the shipyard technical transformation work carried out in-depth, we assume the high precision cutting machine cutting technology mission, the requirement is to use the combination of cutting mouth to cut V-type, Y-type, X-type groove, and notch section Quality must meet the requirements of automatic welding puzzle. In response to this task, we believe that: cutting the mouth is to ensure the quality of cutting section and improve the cutting speed of the key. To this end, we conducted a rapid precision cutting mouth research. In order to ensure as much as possible the supersonic oxygen channel hole profile, we use the electrolytic casting process to cut the cutting nozzle oxygen