Research On Boiler Welding Process Aided Designing System

Boilers play an important role in the national economy construction, and welding technology is one of the primary machining technologies in the process of production of boilers as well as the key factors assuring the product quality. However, now welding process designing is also mostly manual work done by the designer's experience, with reference to representative projects, which is simply studied out, perfected or innovated, which may result in long-time consuming and high cost. During recent years, computer aided process designing technology has been developed greatly, and it has become the imminent requirement for the boiler enterprises to apply it in the welding field. According to the present situation, the boiler welding process aided designing system is studied Firstly, the method of extracting drawing information automatically by using cell-grid and feature-point is proposed and using the OpenDWG Toolkit supported by Open Design, develop and realizes that the product structure information can be extracted from drawing and the parts list created automatically, which solves the problem of quickly fixing objects of welding process designing task. Secondly, by analysis of the technologists'designing work and the general work step, the entire process of designing activities is involved in the system and the primary function and component modules of the system is decided, which includes the input or output of the basic parameters,the establishment of the welding process qualification assess report,the creation of the welding specification. The query to the eligible items of welder during the course of making process card and the welding process qualification assess report are discussed.. Finally, based on the analysis and research above, the boiler welding process aided system is realized and applied to the practice of the boiler enterprise which improve the designing efficiency, reduce the designing cycle and bring more benefits to enterprises.