With the development of aerospace technology and modern technique of manufacture, high precision hydraulic synchronization driving technology is urgently needed in many areas, such as metal-working equipment, metallurgical machinery, engineering machinery, aerospace driving unit and so on. 随着航天航空技术和现代机械加工业等的发展,金属加工设备、冶金机械、工程机械及航天与航空驱动装置等对高精度的液压同步驱动技术的需要迫切。
The Establishment of practice base and improvement of metal-working course would play a very important part in training of super-qualified talents and engineering-oriented practice in University. 本文阐述了建立定点实习基地,对深化金工课程改革,培养新世纪高素质人才以及实现基地实习工程化都将起着重要作用。
For some metal-working equipments, such as NC machine and machining center, most of them utilize the linear or circle grating encoder to measure linear or angular displacement. 在数控机床和加工中心等设备中,大多利用直线光栅或圆光栅编码器来测量直线位移或角位移,该传感器输出信号经放大、整形后转换为两路正交编码脉冲信号。
The application of plastic deformation instead of cutting is capable of increasing efficiency and strength of the pieces worked in metal-working. 金属的加工,采用使被加工金属的塑性变形来代替切割,可增加加工效率和被加工件的强度。
Machining tests have shown that the Al_2O_3/ CePO_4 composite ceramics could be grinded and drilled using conventional metal-working stools. 利用常规的磨削和钻孔方法进行了加工性能试验,结果显示Al2O3/CePO4复合陶瓷材料具有良好的可加工性能。
Sheet metal forming processes are among the most important metal-working operations. 薄板成形是众多金属加工工艺中一类非常重要的加工方式。