![]() ![]() The examined parameters were: the mean power that depends on the pulse frequency, the beam speed and the number of laser scansions, also called repetitions. ![]() Obviously, in order to achieve larger material removal rates, the process needs a controllable variation of the depth to carve a 3D (three dimensional) profiles.The degree of precision of the shape, the removal rate and the surface quality during the engraving process strictly depend on the materials properties, the laser source characteristics and the process parameters.The aim of this work is to investigate the influence of the process parameters on the material removal rates by engraving panels made of different types of wood using a Q-switched diode-pumped Nd:YAG green laser working with a wavelength λ=532 nm. The sculpture is obtained by repeating this process on each successive thin layer. ![]() In this method, a laser beam is used to ablate a solid wood bulk, following predetermined patterns. Laser deep engraving is one of the most promising technologies to be used in wood carver operations. The lack of accuracy and precision in fabricated components would lead to a diminished performance of the machine resulting into a poor surface finish. Care has been taken in the fabrication of components. taking into consideration of the commercially available components. In this project, a model of the Pantograph engraving machine will be designed using CAD packages like AutoCAD, pro-e etc. This is a low cost and high valuable apparatus. These other links move according to the movement of the tracing link. The working principle of pantograph engraving machine is based on four bar mechanism in which one link is fixed and other links are pivoted. The Pantograph machine consists of the traditional cutting equipment along with a pantograph which is a mechanical linkage connected in a manner based on parallel orgasm and which is further used for copying and scaling line drawings and complex images. This project 'Pantograph Engraving Machine (PEM)' is designed and is used mainly to cut wood, plastics, mild steel plates in to any shapes with desired accuracy and correctness. ![]()
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