This paper describes a PC-based CAD/CAM package for the design and manufacture of mould cavities for producing products with sculptured surfaces. The surface of a product is described by specifying control points on its cross sections. Spline curves are fitted through these control points along both traverse and longitudinal axes. The number of curves fitted depends on the required accuracy. Th...

Diecasting is one of the forming methods which is used for producing large number of components with good surface finish by injecting cast alloys in a metal mould under high pressure. Design of a diecasting die requires human expertise and is normally performed by trial and error method, which leads to monetary and time loss. Automation at initial die design stage will result in higher producti...

Electrical discharge machining (EDM) process is one of the most commonly used nonconventional precise material removal processes. Electrical discharge machining (EDM) is a process for shaping hard metals and forming deep complex shaped holes by arc erosion in all kinds of electroconductive materials. Erosion pulse discharge occurs in a small gap between the work piece and the electrode. This re...

To compute vertex normal of triangular meshes more accurately, this paper presents an improved algorithm based on angle and centroid weights. Firstly, four representational algorithms are analyzed by comparing their weighting characteristics such as angles, areas and centroids. The drawbacks of each algorithm are discussed. Following that, an improved algorithm is put forward based on angle and...

Firstly, the social production demand of sanitary ceramic intelligent manufacturing mold drying line is described. Secondly, technological process mould for ceramics was analyzed, and overall design scheme implementation method were put forward. Again key equipment die analyzed explained again, its structural characteristics, functions characteristics are introduced, working principle in detail...