What is the main benefit of using a fixture during machining?

Using a fixture during machining primarily provides the advantage of supporting and locating specific workpiece designs. Fixtures are specially designed tools that hold and position the workpiece securely and accurately during the machining process. This positioning is crucial for ensuring that the machining operations are performed consistently and precisely, which leads to better dimensional accuracy and repeatability. By effectively supporting the workpiece, fixtures also help to reduce the risk of vibrations or movement that could lead to defects or inaccuracies in the final product.

While the use of a fixture can indirectly contribute to other aspects of the machining process, such as potentially reducing tool wear by maintaining stable workpiece positioning and sometimes increasing speed through more efficient setups, the principal and most significant benefit remains the accurate and secure support they provide to specific designs.