PLANE CROSS-SECTION METHOD FOR MODELING THE PRESSING OF COMPLEX-SHAPEPOWDER ARTICLES IN RIGID DIES

Densification processes in rigid dies are considered. The behaviour of the powder products with inclined, curve and stepped surfaces is stud ied. The influence of a pressing cyclogram on the distribution of resi dual porosity is investigated. The analysis is based on the plane cros s-section method. In the capacity of the procedure, promoting an optim ization of densification, the subdivision of an article into separated elements pressed by different punches is used. For components with in clined surfaces, on the basis of the density distribution required for the final product the most relevant methods of this subdivision are p ointed out. (C) 1996 Elsevier Science Limited. .