Optimization of the weld path for overlay coatings

Kinematic Control of A Robot-Positioner System for Arc Welding Application

“…In another paper, Kim et al (2002b) reformulated the heat-affected zone constraint by setting the lower bound on the travel time between two consecutive welding operations ('cooling time') and proposed several heuristics based on the nearest-neighbour, 2-opt, 3-opt, and tabu search methods. Grenestedt (2003) applied to this problem the simulating annealing in combination with the approximate analytical distortion models. In the latest paper by Kim et al (2005), there several enhanced welding sequencing heuristics were proposed, which also adopt the 'cooling time' concept.…”

Cost and performance evaluation of different surface treated dies for hot forging process

“…The life of a hot working tool steel is affected by the wear behaviour of the tool steel (Sallit et al, 2002;Barrau et al, 2003;Bahrami et al, 2004), heat treatment applied to the die steel (Bahrami et al, 2004;Dobrzanski et al, 2004a;Lee et al, 2003), condition of the die surface (Sallit et al, 2002;Terčelj et al, 2006), the condition of the work metal at forging, the shape of the die cavity (Vieilledent and Fourment, 2001), the alignment of the upper and lower dies, the stress distribution on the die surface generated during each blow and surface treatments (Starling and Branco, 1997;Pellizzari et al, 2001;Navinsek et al, 2001a;Panjan et al, 2002;Dobrzanski et al, 2004b;Panjan et al, 2002) and weld overlay (Grenestedt, 2003;Tucker, 2004).…”

The mechanical effects of deposition patterns in welding-based layered manufacturing

“…However, the alternating deposition direction between the layers influences the tensile strength significantly [13]. Grenestedt [14] has proposed a simple approach to find the weld path that minimizes the residual distortions for overlay coatings. *Corresponding author: Faculty of Mechanical Engineering, GIK Institute of Engineering Sciences and Technology, Topi, NWFP, Pakistan.…”