Despite improvements in surface hardness, what challenges remain in achieving desired depth changes through ultrasonic deep rolling?
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Challenges persist in achieving desired depth changes through ultrasonic deep rolling despite enhancements in surface hardness. The process parameters significantly influence the microstructure and tribological properties of coatings, with preloading depths affecting surface roughness and residual stress levels . Additionally, the relationship between rolling depth and rolling force in ultrasonic rolling impacts machining efficiency, with impact characteristics being negatively correlated with processing efficiency . Furthermore, the surface strengthening of materials like GH4169 superalloy through ultrasonic surface rolling processes has shown improvements in surface roughness and mechanical properties, but the depth of residual compressive stress layers and hardened layers remains a critical factor in achieving desired depth changes .
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| Papers (5) | Insight |
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01 Nov 2019 | In ultrasonic rolling, challenges in achieving desired depth changes include optimizing rolling pressure, speed, and feed volume for consistent results, while avoiding surface defects caused by excessive pressure. |
| Challenges in achieving desired depth changes through ultrasonic deep rolling include managing grain size increase, controlling heat effects on grain growth, and ensuring uniform plastic deformation for optimal microstructure alterations. | |
| Challenges in achieving desired depth changes through ultrasonic deep rolling include dislocation and slip in quenched samples, influencing grain refinement and residual stress distribution, affecting surface integrity. | |
| Challenges in achieving desired depth changes through ultrasonic deep rolling include managing impact characteristics influenced by static force, amplitude, step, and feed speed, impacting processing efficiency. | |
21 Feb 2023 | Challenges in achieving desired depth changes through ultrasonic deep rolling include limitations in enhancing the depth of the residual compressive stress layer and hardened layer beyond 0.6 mm. |
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