نتایج جستجو برای: laser beam cutting
تعداد نتایج: 321687 فیلتر نتایج به سال:
Nowadays, carbon fiber reinforced plastics (CFRP) composites is widely used in the aerospace industry due to its excellent mechanical properties. In laser cutting process, high powers are used to cut materials then material melts and burns leaving edges with a high quality finish. To fulfill the high demand of cutting quality, a set of laser cutting parameters of CFRP material are studied. The ...
The relative position between the laser beam and nozzle is controlled by laser-focus-controlled magnetic actuators to achieve non-coaxial cutting improve efficiency. In this paper, a 3-DOF (degrees of freedom) actuator designed solve inconsistency focus in off-axis cutting. A mixed sensitivity robust controller designed, its simulation analysis experimental research are carried out. First, kine...
Definiranje problema Developments in the field of the material cutting technologies are stimulated by engineering requirements for production, and include: improvements in productivity, high operational reliability, universality, enhancing of quality parameters, and last but not least, environmental criteria. In addition to the conventional material cutting technologies, the advanced cutting te...
Laser forming is a modern process which is mainly used for forming metals. Different Lasers are used in this regard that includes Nd: YAG and CO2. In this study, forming bi-layer sheets of Aluminum/Ceramic by Laser was investigated. Furthermore, effect of Uniform and Gaussian heat flux distribution in different power, velocity, and beam diameters on bending angle was studied. FEM simulation ind...
abstract today, the laser is used in a wide range of dental procedures. some of the advantages of some lasers in treatment of oral soft tissue lesions are: elimination of need for local anesthesia, minimal bleeding, fast healing, absence of postoperative complications and reduction of recurrence rate. for these reasons is was used for treatment of oral fibroma. to our knowledge this is the firs...
Laser cutting is widely used thermal energy based non-contact type, nonconvectional machining process. In the present research, the effect of laser machine processing parameters such as laser power, gas pressure, cutting speed and thickness effect on measured response such as surface roughness. The experiment was designed according to Taguchi L27 orthogonal array with three different level of e...
There are many non-linear interaction factors responsible for the performance of the laser cutting process. Identification of the dominant factors that significantly affect the cut quality is important. In recent years the researchers have explored the number of ways to improve the quality of cutting in the different lasers. This paper reviews the research work carried out so far in the area of...
wood-cutting performance of a 1 kW ytterbium fibre laser-a recent, compact, flexible, efficient laser system. The cutting process is characterized, taking as a reference the effects of the principal process factors. A quantification of energy consumption during the cutting process, critical for scale-up, is provided.
the aim of this project is to fabricated an aluminium-copper bimetal through the fusion method and examine its performance. an aluminium-copper-aluminium bimetal was built by the laser cladding method. the laser power as well as the annealing time effects on its interfacial properties of the bonding’s formed through the laser cladding were investigated. to fabricate the multilayer bimetal, the ...
In the deformation and cutting process of semiconductors and ceramics, especially brittle materials such as silicon carbide (SiC), the presence of high pressure phase transformation (HPPT) is of great importance for accomplishing ductile regime machining (Patten, 2007). To augment the ductile regime machining of these nominally brittle materials, the high pressure phase can be preferentially he...
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