An Analytical Model to Predict and Minimize the Residual Stress of Laser Cladding Process
Tamanna, N., Crouch, R.S., Kabir, I. R. & Naher, S. (2018). An Analytical Model to Predict and Minimize the Residual Stress of Laser Cladding Process. Applied Physics A: Materials Science & Processing, 124(2), article number 202. doi: 10.1007/s00339-018-1585-6
Abstract
Laser Cladding is one of the advanced thermal techniques used to repair or modify the surface properties of high value components such as tools, military and aerospace parts. Tensile residual stresses are formed in the thermally treated area of this process. This work focuses on to find out key factors of formation and minimization of tensile residual stresses in dissimilar materials. In order to predict the tensile residual stress, one dimensional analytical model has been adopted. Four cladding materials (Al2O3, TiC, TiO2, ZrO2) on the H13 tool steel substrate and a range of preheating temperature of the substrate, from 300K to 1200K, have been investigated. The thermal strain and Young’s modulus are found as key factors of formation and minimization of residual stresses. Additionally, the investigation of preheating temperature of the substrate showed the reduction of residual stress with increasing the preheating temperature of the substrate.
| Publication Type: | Article |
|---|---|
| Publisher Keywords: | Laser Cladding; Residual stress; Dissimilar materials; Preheating temperature |
| Departments: | School of Science & Technology > Engineering |
| SWORD Depositor: |
Available under License Creative Commons: Attribution International Public License 4.0.
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