Path planning of mechanical polishing process for freeform surface with a small polishing tool

Although research on various diamond polishing techniques has been carried for years, some issues still need to be examined in order to facilitate application on large areas in a cost-efficient manner. A compositive technique for machining efficiently thick diamond films prepared by DC plasma arc jet is reported in the present paper. A two-stage polishing was applied on thick polycrystalline diamond films, by employing first electro-discharge machining (EDM) for rough polishing and subsequently mechanical polishing for finishing operations. Experimental results obtained clearly indicate the applicability of the proposed two-stage technique for fabricating transparent diamond films that can be used for the production of X-ray windows. Appropriate etching with EDM is an effective pretreatment method for enhancing the efficiency of rough polishing process in mechanical polishing of thick diamond film. The machined surfaces of diamond films are studied by Scanning Electron Microscope (SEM) and Raman Scattering Spectroscopy (Raman).

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Study on Profile-Adaptive Tool System for Small Robots in Large Freeform Surface Polishing

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.37-38.1327 ◽

2010 ◽

Vol 37-38 ◽

pp. 1327-1331

Author(s):

Qi Tong Liu ◽

Jian Ming Zhan ◽

Jian Hua Mao

Keyword(s):

Freeform Surface ◽

Polishing Process ◽

Processing Efficiency ◽

Kinematic Equation ◽

Freeform Surfaces ◽

Surface Polishing ◽

Adaptive Tool

An adaptive tool system of polishing robots for large freeform surface which is installed discoid tool is proposed. To improve processing efficiency, the mechanical of adaptive tool system adjust to curvature changing of large freeform surface is designed. Adaptability of the processing is analyzed and simulated, and kinematic equation of tool system is established. The polishing process of large freeform surfaces with tool system is analyzed.

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Research and Implementation on Critical Technology of Chemical Mechanical Polishing Tool for 300 mm Wafer

Journal of Mechanical Engineering ◽

10.3901/jme.2014.05.182 ◽

2014 ◽

Vol 50 (5) ◽

pp. 182

Author(s):

Tongqing WANG

Keyword(s):

Chemical Mechanical Polishing ◽

Mechanical Polishing ◽

Critical Technology ◽

Polishing Tool

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Modeling and simulation of reconfigurable systems with applications to the polishing process

10.32920/ryerson.14656086 ◽

2021 ◽

Author(s):

Qiang (John) Sun

Keyword(s):

Software Package ◽

Topology Design ◽

Graphic User Interface ◽

Polishing Process ◽

Tree Structures ◽

Tool Paths ◽

Simulation And Control ◽

And Control ◽

Polishing Tool ◽

Cam Software

This thesis presents a newly developed system for simulation and control of reconfigurable machines and applications in the polishing process. A software package is developed that consists of the Varying Topology Simulation and Control System (VT-Sim) as well as the Polishing CAM (P-CAM) software system. VT-Sim can simulate and control reconfigurable machines of serial or tree structures. It is developed based on mechatronic modules, each of which has a graphic user interface that can be connected to a physical module. The selected modules are linked through a graph-based topology design platform to generate an assembled system together with the equations for simulation and control. P-CAM can simulate and generate CNC codes for the polishing process. The roughness of the polished parts is simulated for selected polishing parameters. Once satisfied, polishing tool paths can be generated and visualized.

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