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How to Secure CNC Machined Parts

How to Secure CNC Machined Parts


CNC machining is a precise and efficient method for fabricating various components. However, ensuring the stability and accuracy of the machined parts is crucial for successful outcomes. In this article, we will explore different techniques and strategies to securely fix CNC machined parts, ensuring their optimal performance.

CNC machining

1.Using Clamps:

One common method to secure CNC machined parts is by using clamps. Clamps provide a firm grip on the workpiece, preventing any movement during machining operations. It is essential to choose clamps that are suitable for your specific part, considering its shape, material, and size. Properly aligning and tightening the clamps will guarantee stability throughout the machining process.

2.Adhesive Fixation:

In some cases, clamping might not be feasible due to the part's complexity or delicate nature. In such situations, adhesive fixation can be an excellent alternative. Using adhesives specially designed for CNC machining, carefully apply a thin and even layer between the workpiece and the machining surface. Ensure proper cleaning and preparation of both surfaces before applying the adhesive to achieve a strong and reliable bond.

3.Vacuum Fixturing:

For CNC machining of flat or thin components, vacuum fixturing can be highly effective. This method utilizes a vacuum table or chuck to hold the part securely in place. By creating a suction force, the vacuum fixturing system eliminates the need for clamps or adhesives and minimizes the risk of part distortion. It is crucial to ensure an airtight seal between the workpiece and the vacuum chuck for optimal stability.

4.Fixture Design:

Designing custom fixtures tailored to your specific CNC machining needs can significantly enhance part fixation. Fixtures provide dedicated support and alignment for the workpiece, minimizing the risk of movement or vibration during machining. Consider factors such as the part's geometry, material, and required machining operations when designing fixtures. Incorporating features like locating pins, clamping surfaces, and support structures can improve part stability and accuracy.


Properly securing CNC machined parts is essential for achieving high-quality results. Whether using clamps, adhesives, vacuum fixturing, or custom fixtures, the chosen method should ensure stability and accuracy throughout the machining process. By implementing these techniques, you can enhance the performance of your CNC machined parts and achieve consistent, precise outcomes.

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