The widespread application of ball screws in the machine tool industry has driven the rapid development of the machining machine tool industry. However, the limitations of mechanical transmission make it impossible to cope with the increasing trend of high-speed and efficient cutting. The linear motor type is a high-speed and efficient transmission method that has emerged under the demand of this trend, especially in the development of high-speed transmission of machine tools, which has reached a new level. As a pioneer of advanced machine tools in the world, Germany began the research and development of high-speed milling and turning technology in the 

当进给速度为20m/min时，其轮廓精度可达0.004mm。美国的Ingersoll公司紧接着推出了HVM-800型高速加工，大进给速度达到75.20m/m i n。

When the feed speed is 20m/min, the contour accuracy can reach 0.004mm. Ingersoll Company in the United States immediately launched the HVM-800 high-speed machining center, with a large feed speed of 75.20m/min.

1996年开始，日本相继研制成功采用直线电动机的卧式加工、高速机床、超高速小型加工、超精密镜面加工机床、高速成形机床等。从此以后，直线电动机在高速数控机床的应用如雨后春笋般地迅速发展起来。近十年来，世界上各工业发达纷纷投入巨资，大力研究、开发成功不少直线电动机驱动的高速数控机床，并逐渐有抢占传统滚珠丝杠市场的态势。

Since 1996, Japan has successively developed horizontal machining centers using linear motors, high-speed machine tools, ultra high-speed small machining centers, ultra precision mirror machining machines, high-speed forming machines, etc. From then on, the application of linear motors in high-speed CNC machine tools has rapidly developed like mushrooms after rain. In the past decade, various industrialized countries around the world have invested heavily in researching and developing many high-speed CNC machine tools driven by linear motors, and gradually have a trend of seizing the traditional ball screw market.

直线电动机加工在国外的宝马、通用等汽车公司已经有成熟的应用，在国内上汽通用、东风雪铁龙、昌河铃木、海马汽车等也有整线的应用实例。本文从技术分析和应用实例上进行了直线电动机和滚珠丝杠驱动加工的对比。图1为Comau Urane25直线电动机高速加工。

The linear motor machining center has mature applications in famous automobile companies such as BMW and General Motors abroad, and has also been applied in whole lines in China, such as SAIC General Motors, Dongfeng Citroen, Changhe Suzuki, and Haima Motors. This article compares the linear motor and ball screw driven machining centers through technical analysis and application examples. Figure 1 shows the Comau Urane25 linear motor high-speed machining center.