|
Technology is a high-tech laser quenching, because compared to conventional quenching technology high precision machining, machining deformation, processing flexibility, pollution, noise, etc., so that in ships, cars and many other industrial sectors to be widely used. Knowledge of the laser hardening by theory that, to obtain a uniform work hardened layer needs to meet three basic conditions: (1) the defocus amount to be kept constant; (2) is required to have a laser beam along the contour plane normal incidence ; (3) laser spot relative to the workpiece surface constant scanning speed. Given the current CNC system are CNC machine parts for the design, it is difficult to meet the basic requirements of laser hardening. According laser quenching workpieces need to solve the current problem of complex contour parts quenching, developed a technique for laser hardening CAD / CAM system is necessary. Since this system is a very large system, this article is only for laser CAD / CAM Systems CAD system key technology research, such as system design, presentation and drawing primitives, non-circular curve generation algorithm to analyze the system uses the data structure discussed element selected editing principles and methods discussed DXF file data interface technologies, the laser processing lines of the design. Based on this, the design of a friendly interactive interface, while, in order to speed up the drawing speed and efficiency, the introduction of parametric design ideas, analyze parametric design of the key technologies that geometric constraint problems. The system is based on modular design, object-oriented programming approach to delphi7 development tools, development tools while taking advantage of the library, in WindowsXP environment research is completed. System graphics generation, editing, and aliquots module graphic design to meet the basic needs, the development of the parameters used for the user to select library of convenient and reliable, the examples for selected library, the related parameters, to give the desired pattern. CAD systems are available as two-dimensional graphics rendering subsequent machining simulation CAM system objects, graphics, drawing a direct relationship to the quality and precision machining. The system for machining CAM system to lay the foundation. The system is user-friendly, has a certain practicality, simple operation, can reduce staff training time and costs.
|