PROCESS FOR MANUFACTURING A WORKPIECE COMPRISING AT LEAST ONE BLOCK OF DENSE MATERIAL CONSISTING OF HARD PARTICLES DISPERSE IN A BINDER PHASE: APPLICATION TO CUTTING OR DRILLING TOOLS.

摘要

Process for manufacturing a part comprising at least one block (1) of dense material consisting of hard particles dispersed in a binder phase, the dense material being capable of being locally enriched in the binder phase by imbibition, a process according to which at least one imbibition area (4) of a surface (3) of the block in contact with an imbibition material (2) capable of locally enriching the block in the binder phase, then subjecting the block to contact with the material of imbibition to a suitable thermal cycle, consisting of heating, temperature maintenance and cooling, so as to partially or completely pass in the liquid state the imbibition material and the binder phase of the block, so that the binder phase enrichment is done only through the impregnation area.