Specific and Programmable Surface Structuring by Electrochemical Jet Processing
Specific and Programmable Surface Structuring by Electrochemical Jet Processing
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DOI：
10.1016/j.procir.2017.12.128
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发表时间：
2018
期刊：
影响因子：
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通讯作者：
Ivan Bisterov;Jonathon Mitchell-Smith;A. Speidel;A. Clare
中科院分区：
文献类型：
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作者：
Ivan Bisterov;Jonathon Mitchell-Smith;A. Speidel;A. Clare
通过应用表面结构化的部件表面优化被理解为有益于使用中的部件的性能和寿命。然而，在设计阶段定义的表面的多功能要求可能难以实现。在表面处理中利用电化学喷射处理（EJP）方法允许在多种长度尺度上的表面结构的宽范围变化。可以通过选择合适的工艺参数来控制粗糙度和切割深度等表面特征。通过优化的控制结构，可以直接将设计意图传递给部件，以创建特定的编程表面。EJP专用计算机辅助制造（CAM）软件已经开发出来，并在这里报告。这被证明是控制过程参数变化的函数部分局部坐标，以允许完整的CAD到CAM的表面设计意图的翻译。以这种方式，中尺度和微米尺度特征都可以具体地位于表面上。除此之外，通过应用数学函数在不锈钢中创建功能梯度表面，允许自动改变电流和进给速度，以实现所需的表面粗糙度分布。使用灰度图像作为工艺参数图，电流，因此表面粗糙度，与灰度值成比例，该软件的实际应用进一步证明了直接翻译的数字化图像的表面复制。此功能允许快速创建可重复的编程曲面。
Component surface optimisation through the application of surface structuring is understood to be beneficial to performance and longevity of a component in service. However, the multi-functional requirements of a surface defined at the design stage can be difficult to realise. Utilisation of electrochemical jet processing (EJP) methods in surface processing allows a wide-range of variation in surface structures over a multitude of length scales. Surface characteristics such as roughness and depth of cut can be controlled by selection of suitable process parameters. With an optimised control structure, it is possible to directly impart a design intent to a component to create a specific programmed surface.EJP-specific computer-aided manufacturing (CAM) software has been developed and is reported here. This is demonstrated to control processes parameter variation as a function of part local co-ordinates to allow complete CAD to CAM translation of surface design intent. In this way both meso- and micro-scale features can be specifically located on a surface. Alongside this, functionally graded surfaces are created in stainless steel by application of a mathematical functions allowing automated variation of current and feed rate to achieve the desired surface roughness distribution. Using a greyscale image as a process parameters map with current, therefore surface roughness, being proportional to grey tone value, practical application of the software is further demonstrated by direct translation of digitised imagery to surface replication. This functionality allows for fast creation of repeatable, programmed surfaces.