ALUMINIUM BIMETAL STRUCTURE PRODUCTION BY LOST FOAM CASTING WITH LIQUID-LIQUID PROCESS
- 1 Department of Metallurgy and Materials Engineering, Yildiz Technical University, Turkey
Numbers of both ferrous and non-ferrous bimetal productions and applications have been increased due to useful advantages.
Bimetal fabrication techniques and procedures are developing and getting various. Liquid metal based techniques are in basic bimetal fabrication methods which have two types; liquid-solid and liquid-liquid processes. Lost foam casting technique can be successfully employed for both liquid-solid and liquid-liquid bimetal composite productions. In this work, A380 and A2014 aluminium alloys were used to produce bimetal structure by conventional lost foam casting with liquid-liquid process. There are two main principles of liquid-liquid process. First, both alloys are joined in liquid phase and solidified and second, crucibles tilting are carried out synchronously at the same time. HB hardness of the cast specimens were measured and micro structure of the joint field were observed.