Using lubricant materials for isothermal forging of Al-based alloy RS300 (AK10ch) blanks

This article deals with researching of lubricant materials for hot forging Al-based alloys. An analysis of lubricant materials for hot and hot isothermal forging of Al-based alloys such as AMg6 and AK12D was done. There were researched technological properties of lubricants for isothermal forging Al-based alloys RS300 blanks. This alloy RS300 was done with new technology named SLM. To research technology properties this alloy RS300, we have used method of upsetting ring samples. These Al-based alloy ring samples RS300 had the initial sizes D:d:H = 6:3:2. Then they were upset on the flat dies with hydraulic press with rated capacity up to 2,5 MN. Velocity of deformation was 2 mm/s. There were used die materials with heat resistance for hot forging. Trust ring was installed on the low flat die to fix stroke press ram not to less 7.0 mm. Heat of the samples and dies were up to 450 °C. There were three series of experiments. First, the samples RS300 were upsetting with lubricant names MC-23M. Then next samples were upsetting with MC-23M plus coating TV-6 and OVT-CT, respectively. We have got compare results of different compositions. Finally, we have claimed that the lubricant MC-23M could be used for isothermal forging Al-based alloy RS300. These experimental results have given initial information for the next computer modelling technological process isothermal forging blanks RS300. It will be confirming results and by the way to determine digital value of coefficient friction for lubricant named MC-23M.