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<p>Artificial Aging (AA) is an important post-casting process which brings about the required mechanical, hardness and dimensional stability properties required for vehicle applications. Most AA developments for aluminum castings center around both the strict control of the door-to-door duration, and tight adherence to target temperatures, both of which help meet the required properties. However, the consistency of the ramp up to target temperatures and ramp down to room temperature can play a role in the uniformity of the mechanical property response. If the cooling down stage is done via fans which draw the air from outside, this could mean that seasonal air temperature effects on the mechanical property response could be encountered. Consistency of the entire thermal path for the AA process is a critically important aspect which can support improved process optimizations and enhance the development of the Failure Mode Effects Analysis (FMEA) process, a requirement for metal castings and their subsequent heat treatment for automotive applications.</p>

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Optimization of the Artificial Age Response of Aluminum Castings Made in the Precision Sand Casting Process (PSCP)

  • 期刊论文

  • 发表日期：

    2026年5月14日

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  • Robert Mackay,
  • Glenn Byczynski

摘要

Artificial Aging (AA) is an important post-casting process which brings about the required mechanical, hardness and dimensional stability properties required for vehicle applications. Most AA developments for aluminum castings center around both the strict control of the door-to-door duration, and tight adherence to target temperatures, both of which help meet the required properties. However, the consistency of the ramp up to target temperatures and ramp down to room temperature can play a role in the uniformity of the mechanical property response. If the cooling down stage is done via fans which draw the air from outside, this could mean that seasonal air temperature effects on the mechanical property response could be encountered. Consistency of the entire thermal path for the AA process is a critically important aspect which can support improved process optimizations and enhance the development of the Failure Mode Effects Analysis (FMEA) process, a requirement for metal castings and their subsequent heat treatment for automotive applications.