Why is it important to consider thermal expansion in alignment processes?

Considering thermal expansion in alignment processes is crucial because machines and their components generally expand when subjected to increased temperatures. If alignment is performed without accounting for these potential changes in position due to thermal variations, the machinery may operate misaligned during normal operating conditions, which can lead to increased wear, vibration, and ultimately, premature failure of the equipment. Proper alignment must take into account not only the static position of components but also how their positions might change as temperatures fluctuate. This ensures that the machinery operates efficiently and extends its service life.