pore cell

Experiment of the periodical vent of the hole and its analysis;

小孔周期性泄流的实验与分析

For inspecting holes on the sheet metal parts of autobody, a method based on non-contacted and digital image processing techniques is presented.

将非接触测量及图像处理技术用于检测车身钣金件上一些位置和形状精度要求很高的小孔。

The application of the structure solved the problem in manufacture of small holes,thus decreased the factory cost and shortened the manufacturing cycle.

其结构的使用解决了小孔加工困难的问题,并直接降低了模具的制造成本,缩短了模具的制造周期,对同类产品的模具设计具有一定的借鉴作用。

Through experiment on ultrasonic machining small holes on building glass,this paper investigate effect of chief machining parameters of amplitude and freqency of tool vibration, material of parts,feeding pressure,working medium etc.

本文通过超声波加工建筑玻璃小孔的试验，探讨了工具振动的振幅、频率、工件材料、进给压力、工作介质等主要加工参数对去除率的影响和工具设计及加工效果。

Characteristics, Invalid Pattern of Little Hole Punching and Main Points of Die Design;

小孔冲裁的特征、失效形式及模具设计要点

Based on the needs of little hole, its technology, chalacteristics and developing trends are introduced.

从小孔加工的实际需要出发，详细介绍了国内外小孔加工技术的现状、特点和发展方向。

Characteristics of keyhole shape in CW Nd∶YAG laser deep-penetration welding;

Nd∶YAG激光深熔焊接过程中小孔的形态特征

Numerical simulation and experiment study on keyhole in laser penetration welding;

激光深熔焊接抛物面小孔模型

Stability control of keyhole in keyhole plasma welding using plasma spring;

利用等离子体反翘控制穿孔等离子弧焊中小孔的稳定性