What is the standard practice after machining to prevent warping?

To prevent warping after machining, it is essential to allow the workpiece to cool down gradually. Upon machining, a workpiece often undergoes temperature changes due to the heat generated during the cutting process. Rapid temperature changes can lead to thermal stresses, which may cause the material to warp or distort. By allowing the workpiece to cool down uniformly to room temperature, the risk of inducing these stresses is minimized, promoting stability and accuracy in the finished component. This step ensures that the material retains its intended dimensions and shape after machining is completed.

The other choices, while important in their respective contexts, do not directly address the issue of warping. Immediate cleaning of tools pertains more to maintenance of machinery rather than the integrity of the workpiece. Final inspection is crucial for ensuring quality control but occurs after the cooling process. Reapplying cutting fluids is relevant during machining to reduce heat but does not directly manage the cooling phase post-machining that is crucial in preventing distortion.