Evaluation Influences of Residual Stress on Machining Aluminum Part of Cooling Plates

Abstract:

During machining age-hardening aluminum alloy, quench-induced residual stress usually caused serious distortion, which made parts difficult to meet precision requirements. Residual stress patterns through the thickness of 6061T6 aluminum cooling plate were measured by layer removal method. According to residual stress patterns and two parts, four machining strategies were designed and developed by experiment and FEM simulation for investigating the relationship between residual stress and distortion. Distortion increases with increasing stress magnitude, machining depth, and machining asymmetry. Distortion can be minimized effectively by employing appropriate machining strategies which can balance residual stress in parts.

• Periodical: Advanced Materials Research (Volumes 652-654)
• Pages: 2140-2146
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.652-654.2140
• Online since: January 2013
• Authors: Yin Fei Yang, Hai Bin Qiao, Zheng Zhang, Liang Li
• Keywords: Distortion, Machining Strategy, Residual Stress

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