Damage Analysis of Cemented Carbide Tool in High Speed Milling Induced by Thermal Stress with Laser Shock

Yi Wan; Zhan Qiang Liu; J.Y. Pang; X.F. Zhao

doi:10.4028/www.scientific.net/AMR.69-70.399

Paper Titles

A Compound Vibratory Mode in High Speed Vibratory Tapping
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Influences of End Surface Angle of Workpiece on Burr Formation in High Speed Machining
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Heat Conduction Analysis of Coated Cutting Tools with Temperature-Dependent Properties
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Effect of Helix Angle and Normal Rake Angle on Stability in End Milling
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Damage Analysis of Cemented Carbide Tool in High Speed Milling Induced by Thermal Stress with Laser Shock
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Correlation between Cutting Forces and Tool Wear in High Speed Milling of Graphite
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Determination of Minimum Uncut Chip Thickness in Micromachining
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Study on Cutting Forces in High-Speed Milling of LF21 Aluminum Alloy and Regression Model of Cutting Forces
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Cutting Forces in High Speed Milling of Hardened Steel by Coated Tool
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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 69-70Damage Analysis of Cemented Carbide Tool in High...

Damage Analysis of Cemented Carbide Tool in High Speed Milling Induced by Thermal Stress with Laser Shock

Abstract:

Damage of fine grained hard metals WC-10%Co was investigated using the laser thermal shock method. Cemented carbide insert was irradiated with a high power laser and scanning electron microscopy was used to characterize the damage in the surface. Stress was analysis with thermo-elastic theory after thermal shock cycles. Crack initiation of cemented carbide was primarily induced by high thermal shock cycles under high rotation speed and low feed rate. Tangential stress played a primary role in crack initiation and it was demonstrated that why the thermal cracks always perpendicular to the cutting edge.