Investigate Surface Integrity When Machining FC300 Cast Iron Using Uncoated Carbide Ball End Mill - Study Of Subsurface Micrograph

Mohamad Afiq, Shawaldin (2013) Investigate Surface Integrity When Machining FC300 Cast Iron Using Uncoated Carbide Ball End Mill - Study Of Subsurface Micrograph. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

The aim of this research is to study the surface integrity of FC300 cast iron after machining in terms of subsurface microstructure and subsurface microhardness. FC300 is a material that frequently used in die industry. The parameters that was evaluated are based on the 6000 – 9000 rpm spindle speed, 4 – 7 m/min feed rate and with a constant depth of cut 0.1mm. In this research, the machining trial was conducted using a CNC milling machine under dry condition and the cutting tool that is used was uncoated carbide ball end mill with diameter 32mm. The performance of surface integrity for FC300 cast iron was measured and analysed in regards towards the subsurface microhardness and subsurface microstructure. This research will provide useful information about the suitable cutting parameter to machining FC300 cast iron efficiently.

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