Design and development of punch-die assembly for compaction of metal powders by using ANSYS software and CNC machine

A compaction die has vital role in the powder metallurgy process due to the controlling and ease of processing. It is being followed from an ancient era till now like Ashoka pillar in Delhi, bushings, bearings etc. This process is material andenergy-efficient compared with other metal-forming methods. Powder metallurgy isremunerative for making complex-shaped partsand reduces machining. This work is an attemptto design and manufacture a compaction die that can successfully use for uni-axial compressionof powder. The design and development of die includes design consideration, 2D drawing, 3D model and processes involved in the fabrication of die. The die design was analyzed by ANSYS software and program thus generated is executed by CNC machine in a simulated environment, and the fabricated die was tested experimentally by producing the blended sample successfully at 1000MPa compaction pressure using universal testing machine. Further, the compaction behaviour, density, compressive strength, and hardness of developed parts also evaluated.