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

Abstract:

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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.

Info:

Periodical:

Advanced Materials Research (Volumes 69-70)

Edited by:

Julong Yuan, Shiming Ji, Donghui Wen and Ming Chen

Pages:

399-402

DOI:

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

Citation:

Y. Wan et al., "Damage Analysis of Cemented Carbide Tool in High Speed Milling Induced by Thermal Stress with Laser Shock", Advanced Materials Research, Vols. 69-70, pp. 399-402, 2009

Online since:

May 2009

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Price:

$35.00

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