Taschenfräsen

Taschenfräsen, also known as pocket milling or pocketing, is a subtractive manufacturing process used in computer numerical control (CNC) machining. It involves removing material from a workpiece to create a recessed area, commonly referred to as a "pocket." This technique is widely employed in industries such as aerospace, automotive, and mold making to produce complex geometries, lighten components, or create cavities for other parts.

The process typically utilizes a rotating cutting tool, such as an end mill, which follows a predefined path to excavate the material. The shape and depth of the pocket are determined by the programmed toolpath and the dimensions of the cutting tool. Several strategies can be employed for pocketing, including parallel toolpath, contour parallel, and spiral milling, each offering different advantages in terms of efficiency and surface finish.

Key parameters in pocket milling include cutting speed, feed rate, depth of cut, and tool engagement. These factors are optimized to achieve the desired material removal rate, maintain tool life, and ensure the accuracy and quality of the finished pocket. The choice of cutting tool material, such as high-speed steel or carbide, also plays a crucial role in its performance.

Compared to other machining operations, pocketing can be more time-consuming due to the need to clear larger volumes of material. However, it is essential for creating functional features and intricate designs that cannot be achieved through simpler methods like drilling or contour milling alone. Advanced CAM software facilitates the generation of efficient and optimized toolpaths for pocket milling operations.