HASS Rapid Change-Over Process

A significant increase in HASS testing demand drove the necessity for process improvement to reduce traditional set-up times. Multiple part numbers are undergoing HASS testing at the manufacturing facility. With limited resources and capacity, it became crucial to improve current processes to meet production demands. Using the Lean Six Sigma process, a team of engineers developed a rapid change out approach for interchanging tested products. Included in this approach were improvements in fixture design, ensuring early initiation of HASS fixturing into the HALT process, product and fixture assembly being performed outside the chamber, and standardized processes, set-ups, electrical tester interfaces, hardware, mistake proofing and ergonomics. Repeatability and documentation were also addressed in the approach and drove improvements in installation techniques to ensure consistent product orientation, cable connections, and air flow through ducting. The rapid change out approach has allowed for an increased production output by reducing the change-out down time of the HASS chambers.