Abstract
This article presents a system of computer aided costs of weld operations by welding for mechanical assemblages. We propose a system based on the combination of two cost estimation methods: on one hand we use the analytic method to formulate the time for weld and for gas and filling metal consumption according to the different parameters of preparing and welding features. The estimating is based upon an evaluation of the filling metal mass used in the welding process. On the other hand, we use the parametric method for the structuring of costs generated by the different features costs which compose the welding process: preparing, pointing and welding. In this case, the estimating is based on the structure of inductors suitable for the scale of each feature. The system we have developed has been implemented with Microsoft Access which permits us to rapidly and efficiently define important and strong data base. The latter constitutes in majority a library of expertise for the enterprise such as the used processes, the preparations, the metals, etc. At last, and to show the developed methods interest and the efficiency of the model, we have treated an industrial project proposed by a collaborating enterprise. The results obtained compared to real time made by welding staff prove the rapidity and the accuracy of the model we have developed.