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Key Problems in Microforming Processes of Microparts

Chunju WANG , Debin SHAN , Bin GUO , Jian ZHOU , Lining SUN

材料科学技术(英文)

From the viewpoint of production engineering, microforming is considered as an effective process to fabricate various microparts. Several key problems in microforming processes were investigated. A new microforming apparatus with a high stiffness piezoelectric actuator as the punch driver was developed to produce microparts. To improve the forming abilities and locate the billets, a floating microdie was designed. The size effects of the billets and die cavities on the microforming abilities were studied with upsetting and coining tests, respectively. And the isothermal microforming process of microgears was performed with the developed microforming apparatus. Several analysis methods were used to evaluate the forming quality of the microparts.

关键词: Microforming , 尺寸效应 , 微塑性成形设备 , 浮动

双拍双存储伪并行LCoS微显示器交流驱动的研究

任立儒 , 耿卫东 , 孙钟林

液晶与显示 doi:10.3969/j.issn.1007-2780.2003.03.010

双拍双存储式驱动的LCoS微显示器引入了一些新的问题,对此提出了应用于双拍双存储式驱动的LCoS微显示器的新的交流驱动方式,通过互补驱动信号电压和浮动公共电极电压相结合的方法,不但满足了LCoS的要求,而且降低了工作电压.

关键词: 双拍双存储伪并行LCoS微显示器 , 互补 , 浮动

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