The Development of Graphite Containing Self-Lubricating Sintered Copper Alloy Plates by Powder Rolling Method

Abstract

Recently self-lubricating composite materials have been frequetly used for metal forming machines and the sliding part of their dies, as well as components of general industrial machines.
The properties required in paticular are wear resistance, resistance to impact, low coefficient of friction and capability to be formed into diverse shapes.
As a result of having examined the composite materials suitable for advanced applications from various points of view, we investigated the sintered material of Cu-Ni-Sn-Fe-P-Graphite system.This material was made porous using powder metallurgical technique.In order to improve impact resistance of sintered material, steel was used as a backing material.
We examined the method of applying diffusion bonding during the sintering process of the material. Attention was given to the fact that there is a limit to the capacity of press forming machine.Therefore the method of direct powder rolling was used.