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不锈钢小深孔加工技术研究课题前不久通过技术鉴定。该课题是原机械部“六五”科研攻关项目,这种难加工材料的小深孔钻削工艺难度很大。鉴定认为:小深孔研究在国内外很不充分,而且不锈钢小深孔研究更少(只有φ5mm 以上的小孔)。本课题的研究成功(研究范围φ0.4～0.1mm,长径比20∶1;φ1.0～φ3.0mm,长径比30∶1)解决了国内外难度较大的研究项目,处于国内领先地位。钻孔的长径比,粗糙度的技术指标达到国际先进水平。
Stainless steel small deep hole processing technology research project recently passed the technical appraisal. The subject is the “Sixth Five-Year” scientific research project of the former Ministry of Machinery, and the small deep-hole drilling process of such difficult-to-process materials is very difficult. The appraisal suggests that small deep-hole studies are inadequate at home and abroad, and there are fewer studies on stainless steel small deep holes (only holes of φ5 mm or more). The successful research of this subject (the research scope is φ0.4 ~ 0.1mm, the aspect ratio of 20:1; φ1.0 ~ φ3.0mm, the aspect ratio of 30:1) solved the difficult domestic and foreign research projects, leading position. Drilling the aspect ratio, the roughness of the technical indicators have reached the international advanced level.