Some Specific Examples of Using Reamers in the Processing of Semi-Circular Holes

1. Mold Manufacturing:

In the production of molds, especially plastic injection molds or die-casting molds, semi-circular holes or slots are often required. After rough machining, reamers can be used for finishing, ensuring precise hole dimensions and a smooth surface. This prevents irregular shapes from affecting the quality of the final product.

2. Automotive Industry:

When manufacturing components for automobile engines or transmission systems, semi-circular holes may need to be processed. Reamers are used for fine finishing of these parts to ensure hole diameter precision and surface smoothness, which is crucial to prevent poor hole shape from negatively impacting mechanical performance.

3. Aerospace:

Aircraft components such as engine housings, connectors, or structural parts often require semi-circular hole machining. Reamers provide high-precision processing, meeting the strict standards of the aerospace industry. Reamers are capable of handling high-strength materials and offer fine control over dimensions and surface quality.

In these cases, rough machining is typically performed first using drills or milling tools to form the basic shape of the semi-circular hole, followed by reaming for fine finishing. The reamer plays a crucial role in these finishing stages, improving dimensional accuracy while maintaining the hole shape and reducing surface roughness.

These examples demonstrate that reamers offer excellent machining results for special-shaped holes, particularly semi-circular holes, ensuring high precision and surface quality.