TWO KEY ASPECTS IN RAIL GRINDING - EFFECTIVENESS AND EFFICIENCY

Laser based, automated rail measurement equipment and Global Positioning System (GPS) loom on the horizon for rail grinding companies, according to this discussion of key aspects for rail grinding effectiveness and efficiency. Grinding removes corrugations, surface defects, and restores rail shape. The article notes that effectiveness measures how well rail grinding works, while efficiency is related to the cost of grinding. It discusses how high and low rail profiles through curves and on flatland occurs. A worn shape becomes optimal in high rail curves, the article states, and any grind should be solely for surface defects. However, low rails on curves go from crowned top to flat top and the crown needs to be restored. The article ends with a discussion of regrinding inspections and its effects on grinding effectiveness and efficiency. Laser based systems hold the most promise for increased effectiveness and efficiency.