3-D Finite Element Analysis Of Effect Cutting Edge Geometry on Cutting Forces ,Effective Stress , Temperature And Tool Wear In Turning | ||
| journal of kerbala university | ||
| Article 1, Volume 8, Issue 0, March 2012, Pages 82-98 PDF (0 K) | ||
| Abstract | ||
| The problem of tool wear monitoring in machining operations, has been an active area of research for quite a long time. The accurate prediction of tool wear is important to have a better product quality and dimensional accuracy. In cutting tools the area close to the tool tip is the most important region and conditions at the tool tip must be carefully examined, if improvements in tool performance are to be achieved In this study, 3-D finite element modeling of precision hard turning has been used to investigate the effects of cutting edge micro-geometry on tool forces, temperatures , stresses and tool wear in machining of AISI 1045 steel using uncoated carbide inserts with four distinct edge preparations. Three type of edge preparation are redesign by using software solid work 2008 , 1-honed edge(0.25 ,0.5 , 0.75 mm) , 2-chamfer (0.025 ,0,05 ,0.075 mm) , 3-land (150 and 0.05 ,0.1 ,0.2 ,0.3 mm) . Also perfectly sharp edge which is not prepared and redesign . Simulation results for Hone micro-geometry inserts have tendency to result in lower forces, hence lower tool wear. Chamfer micro-geometry provides higher localized stress concentration. The highest stress and strain on workpiece occurred in the primary shear zone due to the highest deformation in this region, followed by the secondary shear zone. The maximum generated temperature was also found on secondary shearing zone . | ||
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