[PDF] Top 20 Garantía de la calidad y acreditación en la región árabe

... hybrid laser assisted mechanical micromachining (LAMM) process designed for 3D micro-grooving that involves highly localized thermal softening of the hard material by focusing a solid-state continuous wave ... See full document

... Srithar et al. (2014). An experimental study was conducted by Cho et al. (2014) in-order to investigate the surface hardness enhancement of AISI D2 steel by ion nitriding through atomic attrition. Hullapa et al. (2013) ... See full document

... CO2 laser cutting parameters namely laser power, cutting speed laser scanning ...speed. Laser cutting is a fairly new technology that allows metals to be cut with extreme ...The laser ... See full document

... modern machining processes are now replacing the conventional machining processes rapidly for many applications due to their significant advantages which are proving beneficial to a greater extent to the ... See full document

... a machining process and the model is targeted for the small scale ...literature review suggested that major influencing parameters in a machining process are work piece material, ... See full document

... focused beam will generate intense heat to melt the workpiece all the way via a very narrow region (normally ...the laser will pushes the melt out of the bottom of the cut ...The laser cut can ... See full document

... rate, depth of cut, cutting speed, etc, generates optimum conditions during machining and becomes the main exigency of manufacturing industry. Surface roughness of a material after turning is measured using ... See full document

... Abstract— Laser beam machining is one of the modern manufacturing method in this a light can passes to the work material with a high intensity then the material from the stock can be removed and ... See full document

... the Laser cutting characteristics including power level and focal length are investigated in order to obtain surface roughness with maximum cutting ...a laser power range of 1000-1500W and focal length ... See full document

... of machining. The advantages of laser beam over the other heat sources are its controllable spot size and high power density, which lead to local and rapid heating in the removed layer on the work ... See full document

... Abstract: Laser cutting is a popular process, which finds wide application in various manufacturing industries because of its precision of operation and low ...cost. Laser cutting, being a non-contact ... See full document

... - Laser cutting is one of the widely used non-contact type and thermal based non-conventional machining ...the process parameters of the laser beam machining ...process. ... See full document

... stochastic process for the laser operators to handle it easily, with fluctuations in absorbed power, material composition and optical ...the laser cut quality is essential to predict the actual ... See full document

... using laser cutting without assist gas” Investigates process parameters of stainless steel laser cutting without assistant gas, Input parameters are Laser power ,Cut length, Shielding gas, ... See full document

... The laser power is not affected scan speed as scan ...from laser beam machining the optimization of scan speed according material properties and thickness of sheet for full depth of cut ... See full document

... appropriate machining method must be ...non-conventional machining methods available, Electro Discharge Machining can be used for electrical conductive materials, Abrasive Jet Machining and ... See full document

... Laser-beam machining (LBM) or laser cutting is a machining process using laser (light amplification by stimulated emission of radiation) as its ...manner. ... See full document

... 3. Yang R.T et.al (2011)conducted the testing on pure tungsten.A hybrid method including response surface methodology (RSM)and back-propagation neural network (BPNN) integrated simulated annealing algorithm (SAA) were ... See full document

... an optimization of turning parameters based on the Taguchi method to minimize surface roughness (Ra and Rz) in dry turning of hardened AISI 4140 (51 HRC) using Al 2 O 3 +TiC coated carbide cutting ... See full document

... the laser cladding process is a multiple variable process that involves investment of raw material, financial participation and ...single process parameter as compared to two or more ... See full document