The concept and the character of cutting tool reliability and the reliability model of nc cutting tools are presented.

通过分析数控加工刀具的特点，提出刀具可靠度的概念和性质以及数控刀具的可靠度模型。

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The paper briefly introduces scientific knowledge of modern NC cutting tools and presents a review of NC tools' material and structure in recent years.

简介现代数控刀具科普知识和近几年来在刀具材料、结构科技领域里的现状及发展趋势。

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In addition, the car cut as auxiliary cutting tools and nc cutter, dedicated to supporting the use of processing welding grooves.

此外，小车切割作为辅助切割工具与数控切割机配套使用，专门用来加工焊接坡口。

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