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Why is it a concern to leave chips on the ways?

  1. They can obstruct movement

  2. They can cause wear and tear

  3. Coolant on chips can cause rusting

  4. They can affect lubrication

The correct answer is: Coolant on chips can cause rusting

Leaving chips on the ways of a machine is a concern primarily because they can cause wear and tear. When chips accumulate on the ways, they create an abrasive surface that can scratch and wear down the machine's precision surfaces over time. This wear can affect the ability of the machine to maintain tight tolerances, which are crucial in machining operations. Additionally, while chips can also lead to obstruction of movement or affect lubrication, the primary and most concerning issue is their contribution to wear. Therefore, keeping the ways clean from chips is essential for maintaining the integrity and longevity of the machinery.