Open AccessExtrusion of Circular Billet through Circular, Triangular and Square Multi-Hole Dies
Author(s) -
Rita Kumari Sahu,
Rabin Kumar Das,
Bharat Chandra Routara
Publication year - 2019
Publication title -
international journal of engineering and advanced technology
Language(s) - English
Resource type - Journals
ISSN - 2249-8958
DOI - 10.35940/ijeat.f9163.088619
Subject(s) - extrusion , die (integrated circuit) , materials science , square (algebra) , composite material , bending , mechanical engineering , geometry , engineering , mathematics , nanotechnology
In extrusion with multi-hole dies, more than one product is produced from the same billet and quite suitable for improving the productivity and to produce small dimensioned products. Many operating parameters like number of holes present on die, hole profile, length of die land, die pockets, extrusion speed and friction condition affect the surface finish, bending and mechanical property of the products get extruded. The equivalent size of products produced by multi-hole extrusion process does not exist in literature. The objective of this research work is to produce the products of equivalent dimension from different profile holes by multi-hole extrusion. In this experimental study, the products of circular, triangular ads square profiles have been produced. The dies of 2-hole, 3-hole and 4 holes have been used. The extrusion load requirement, hardness of the final products and the change in length of parts extruded are investigated. The extrusion with squared holed dies needs more extrusion load than circular and triangular holed dies. The hardness value varies along the extruded product length. The variation in length of the extruded parts is more for the products obtained from dies with squared hole dies.