INVESTIGATION OF TOOL WEAR AND SURFACE ROUGHNESS DURING 4- AXIS FINISH MACHINING OF Ti-6Al-4V TURBINE BLADE

GOOTY. RAJKUMAR
M.Tech, Dept.of Mechanical Engineering, SKD Engineering College, Gooty , IN

Dr. R. RAMACHANDRA
M.Tech, Dept.of Mechanical Engineering, SKD Engineering College, Gooty , IN

Keywords: 4- axis CNC machining, MasterCAM, Catia, Turbine Blade, Microscopic images, Tool wear and Surface roughness.

Abstract

Advanced Technology is emerging now a day to minimize time and scrap which is a major concern in industries. Most complexed models can also be fabricating by CNC machines like turbine blades, impellers, propellers, etc., The aim of this paper is focused on 4-axis milling simulation, fabrication of gas turbine blade using Titanium grade-5. The CAD model of turbine blade is prepared using Catia software. Different machining operations (parallel cut morph between two curves parallel with multiple curves root machining for one speed and Zig-Zag for another speed) are assigned with proper tools/parameters in Master CAM. After verifying the Master CAM virtual machine simulation, NC program is generated through Master CAM Sinumerik 828d postprocessor and turbine blade is fabricated through 4-axis rotary finishing. Flat end mill cutter is used for roughing at 2 varying speeds to find out the tool wear outs and ball end mill is used for finishing operations.

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