What is the purpose of tolerances in job planning?

The purpose of tolerances in job planning is to establish acceptable limits for dimension variations. Tolerances are critical in manufacturing and machining processes as they specify the allowable range of variation for a given measurement. By defining these limits, engineers and machinists can ensure that parts fit together properly and function as intended within assembly and operational contexts.

Accurate tolerancing is essential because it helps to maintain quality control and ensure product reliability. If tolerances are too tight, the manufacturing process may become unfeasible, leading to increased costs and production times. Conversely, if tolerances are too loose, it may result in parts that do not assemble correctly or function as required, compromising the overall quality of the product.

Therefore, establishing tolerances is a key aspect of job planning that directly impacts the efficiency and effectiveness of the manufacturing process.