Download CAD/CAM, Robotics and Factories of the Future: Proceedings by Dipak Kumar Mandal, Chanan Singh Syan PDF

By Dipak Kumar Mandal, Chanan Singh Syan

This quantity is predicated at the lawsuits of the twenty eighth overseas convention on CAD/CAM, Robotics and Factories of the long run. This publication in particular makes a speciality of the confident alterations made within the box of robotics, CAD/CAM and destiny outlook for rising production devices. many of the vital subject matters mentioned within the convention are product improvement and sustainability, modeling and simulation, automation, robotics and dealing with structures, provide chain administration and logistics, complicated production strategies, human features in engineering actions, rising situations in engineering schooling and coaching. The contents of this set of lawsuits will turn out important to either researchers and practitioners.

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Read or Download CAD/CAM, Robotics and Factories of the Future: Proceedings of the 28th International Conference on CARs & FoF 2016 PDF

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Acherjee et al. Fig. 1 Schematic of the sample with symmetry boundary conditions (dimensions are in mm) A 3-d heat conduction equation is used as governing equation to describe the heat transfer during the laser transmission welding process. The model is developed as a heat conduction based model using the following equation: qÁc @T ~ rTÞ ~ þ qv ¼ rðk @t ð1Þ where, qv is the volumetric heat generation within the bulk of the material at the weld zone and the neighboring zone. A Gaussian laser heat flux is modeled and the rate of internal heat generation is determined at irradiated zone in both the plastic parts using the equation given below:  qðx; y; z; tÞ ¼ 0 ð1 À Ra ÞK Ia expðÀK za Þ ; for laser transparent plastic ; for laser absorbing plastic ð2Þ where, Ia is the intensity of laser beam (W/m2) reaching to the interface after transmitting through the top transparent plastic.

2012) carried out the experimental investigation with a Tm-fiber laser on the laser butt-welding and transmission welding of different polymers. In this paper, laser transmission welding process is studied through numerical and experimental analyses. A 3-d transient thermal model is developed using finite element method. The results obtained from the developed model, for different welding conditions, are compared to the experimental results and a reasonable agreement is observed. Experimental investigation is also carried out to study the effect of process parameters on the responses.

The weld seam widths are measured by using a measuring microscope (Olympus STM 6). 1 µm precision levels. Inbuilt LED illuminator is used for reflected coaxial illumination during measurements. Experiments are conducted under different parametric conditions and the weld width responses obtained from the developed FE model are compared with the experimentally measured results. Figure 2 shows the comparison of results that are obtained by laser transmission contour welding of polycarbonates via experiments and FE modeling.

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