Hill Engineering Blog

Residual stress production quality control

Hill Engineering is presenting about residual stress production quality control at the upcoming 2017 North American Residual Stress Summit in Dayton, OH. The Residual Stress Summit brings together residual stress users and developers. Hill Engineering’s presentation will include an overview of ongoing work related to quality control processes for residual stress in manufacturing. The abstract text is presented below.

Aircraft engine and structural components are being produced from forgings with increasingly complex geometries in a wide range of aerospace alloys. The forging process involves a number of steps required to attain favorable material properties (e.g., heat treatment, rapid quench, cold work stress relieving, and artificial aging). These processing steps, however, also result in the introduction of residual stress. Excessive bulk residual stresses can have negative consequences including: part distortion during machining and/or during service, reduced crack initiation life, increased crack growth rates, and an overall reduction in part life. This presentation will describe an approach for quality management of residual stresses in aerospace forgings. The quality management system relies upon computational process modeling, residual stress measurement, and the integration of these concepts within the framework of a standard production quality system.

If you are planning to attend the conference please stop by to discuss Hill Engineering’s capabilities in fatigue analysis and design and residual stress measurement. Please contact us for more information.