Using 3d printers as production tools has become known in industry as "additive" manufacturing (as opposed to the old, "subtractive" business of cutting, drilling and bashing metal).

使用3d印制机作为生产工具在工业上被称作“加法”制造(与传统的对金属进行裁剪、锥钻、击打的“减法”制造相反)。

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In metal cutting, tools and workparts must have certain relative movements during processing in order to achieve geometry needed. The movements include main movement and feed movement.

金属切削技术是利用各种不同的加工方法去除工件材料，获得最终所需的几何形状。

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An useful analysis method for diagnosis of breakdown, vib- rarion and noise in metal cutting machine tools is offered.

为金属切削机床的振动与噪声分析和故障诊断提供了进一步的分析方法。

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In 2007, the combined amount of CNC metal-cutting and forming tools produced in China was 126, 268, more than double the amount produced in 2005.

FORBES: Is Foxconn Fleeing China? Sure Looks Like It.

Sweden's Sandvik (6.6, SDVKY) fell 70% in the bear market as the recession whacked sales of its metal-cutting, mining and construction tools as well as specialty alloys based on titanium and zirconium, used in thousands of applications like boiler tubes and flanges.

FORBES: Blink And You'll Miss It