实验设计(DOE)在铝合金热处理过程中的应用

Application of Design of Experiment(DOE)in Aluminum Alloy Heat Treatment Process

铝合金失效形式主要有开裂、断裂、弧度不良等,这些失效形式大多与其硬度和机械性能不达标有关。为有效延缓和避免铝合金失效,应用实验设计(DOE)工具对铝合金导轨时效处理后的硬度效应进行了研究,明确了铝合金导轨硬度与时效温度的关系,建立了全因子实验设计计划,通过优化组合的实验数据,确定影响时效硬度的显著因子,找到了适合于前期质量开发的最优设计参数。

Many cases of aluminum alloy failure,such as cracking,abnormal operation noise,and poor curvature are mostly related to the hardness and mechanical properties.To effectivelg delay or avoid the failure of aluminum alloys,this paper applies the Experimental Design(DOE)tool to study the hardness effect of aluminum alloy guide rails after aging treatment,clarifies the relationship between aluminum alloy guide rail hardness and aging temperature,establishes a full factor experimental design plan,and determines the significant factors affecting aging hardness through optimized combination of experimental data.The optimal design parameters suitable for early quality development are found.