[email protected]

(PDF) An Experimental Investigation on Laser Beam Welding

A 6-kW CO 2 laser beam was split into two equal-power beams and the dual beams were located in tandem (one beam follows another) during welding. Experimental results indicated the dual-beam laser ANALYSIS OF PERFORMANCE CHARACTERISTICS OF LASER Laser (light amplification by the stimulated emission of radiation) welding is perhaps the latest addition to the ever-growing family of welding processes. The laser beam is highly directional, strong, monochromatic (of one wavelength) and coherent i.e. all the waves are in phase. Such a beam can be focused to a very small spot giving a very high energy density which may reach 10 9 W/mm 2 . Thus, a laser beam

ANN Based Predictive Modelling of Weld Shape and

The modelling procedure begins by examining, through structured experimental investigations and exhaustive 3D modelling and simulation ef- forts, the direct and the interaction effects of laser welding parameters such as laser power, welding speed, fibre diameter and gap, on the weld bead geometry (i.e. depth of penetration and bead width). DNVGL-CG-0287 Hybrid laser-arc weldingThe combination of laser and arc welding techniques is called hybrid laser-arc welding, a descriptive term that includes the laser type (i.e. CO2, Nd:YAG) and the arc welding process (MIG/MAG, TIG). Hybrid laser-arc welding is a process in which the laser beam and the arc are combined in one process zone and form one joint melt pool see Factory Price 6 Axis Automatic Motoman Welding Robot - Laser Beam is transmitted through flexible optical fiber and then is projected on the weld joint through the welding head. Laser welding is a non-contact welding process, no need of pressure infusion. Just required inert gas to prevent the melt pool from being oxidized. Precision Electric Slide.

Influence of the solidification path of AlMgSi aluminium

The solidification paths of aluminium alloys have a major influence on the susceptibility to hot cracking during laser beam welding. The model of Rappaz, Drezet and Gremaud allows to predict the susceptibility to hot cracking of an alloy as a function of its solidification path by means of a Modelling and Optimization of Nd:YAG Laser and ModellinG and opTiMizaTion of nd:yaG laser and TunGsTen inerT Gas 215 D= (d 1.d 2.d m)1/m (3) where, m is the number of responses. In this current work d i is calculated using Equations (4) to Optimization of laser welding of DP/TRIP steel sheets In this research work, numerical and graphical optimization techniques of the CO 2 laser beam welding of dual phase (DP600)/transformation induced plasticity (TRIP700) steel sheets were carried out using response surface methodology (RSM) based on Box-Behnken design. The procedure was established to improve the weld quality, increase the productivity and minimize the total operation cost by considering the welding parameters range of laser power (2-2.2 kW), welding

Process-parameter interactions in ultra-narrow gap laser

Oct 03, 2015 · Statistical design of experiments was carried out to assess the process parameter interactions and to optimise the ultra-narrow gap laser welding parameters. Validation experiments indicate that the proposed models predict the responses adequately within the range of welding parameters that were used. The multi-objective optimization modelling for properties Jan 18, 2021 · From above RSM analyses of four target models, the effects of parameter interaction on targets can be concluded:the tensile strength and weld integrity will be improved by increasing welding speed and laser power and decreasing wire feed rate; the number of filling pass will be optimized by decreasing welding speed and increasing laser power; the overlap shape factor will decrease by decreasing laser power and wire feed rate and increasing welding STATISTICAL MODELLING OF CO2 LASER BEAM WELDING Abstract. In this study CO2 Laser Beam Welding (LBW) is used for joining an automotive gear with the synchrocone ring both made of alloy steel (20MnCr5) optimized. Laser power and welding speed combinations are carefully selected with the objective of producing the welded joint with deep penetration, high aspect ratio with minimum defects. The entire quality characteristic will be evaluated as a function of the selected laser welding