How to calculate evasion angle in a model framework drilling?

How to Calculate Evasion Angle in Mold Base Industry

In the mold base industry, it is essential to accurately calculate the evasion angle to ensure precise drilling in the model framework. The evasion angle refers to the angle that the drilling tool needs to deviate from the straight path to avoid any interference with the mold base. In this article, we will discuss the procedure to calculate the evasion angle in a model framework drilling process.

1. Understand the Model Framework

To calculate the evasion angle, it is crucial to have a thorough understanding of the model framework. The model framework consists of various components, including the mold base, the mold plate, and the cavity insert. It is essential to identify any protruding features or obstacles that might interfere with the drilling process.

2. Determine the Desired Drill Path

Before calculating the evasion angle, it is important to determine the desired drill path. This refers to the straight path that the drill needs to take through the model framework without any deviation. The desired drill path is typically indicated in the design specifications or drawings provided by the client or the mold designer.

3. Identify Interference Points

The next step is to identify the interference points within the model framework. These are the areas where the drill might come into contact with the mold base or other components. Interference points can be identified by analyzing the CAD models, inspecting the physical components, or using simulation software. Once the interference points are identified, they need to be avoided by calculating the evasion angle.

4. Measure the Distance of Interference Points

To calculate the evasion angle accurately, the distances of the interference points from the desired drill path need to be measured. This can be done using measurement tools such as calipers or by referring to the CAD models. The distances are typically measured in millimeters or inches, depending on the system of measurement used in the design specifications.

5. Calculate the Evasion Angle

The evasion angle can be calculated using basic trigonometry. The tangent of the evasion angle is equal to the ratio of the distance of the interference point to the desired drill path. Assuming the desired drill path is horizontal, the evasion angle can be calculated using the formula:

Evasion Angle = arctan(interference distance / desired drill path)

6. Adjust the Drill Path

Once the evasion angle is calculated, it is necessary to adjust the drill path accordingly. The drill should be programmed or positioned at an angle that matches the calculated evasion angle. This will ensure that the drill avoids any interference points in the model framework and successfully completes the drilling process.

Conclusion

Calculating the evasion angle is a crucial step in the mold base industry to ensure accurate and precise drilling in the model framework. By understanding the model framework, determining the desired drill path, identifying interference points, measuring their distances, and calculating the evasion angle, professionals in the mold base industry can effectively avoid any potential interference and achieve optimal drilling results.