fräsaaminen

Fräsaaminen is a subtractive manufacturing process that involves using a rotating cutter to remove material from a workpiece. The cutter rotates on a spindle and is moved in relation to the workpiece to create desired shapes and features. This process is highly versatile and can be used to produce a wide range of parts, from simple to complex geometries.

There are several types of milling operations, broadly categorized by the orientation of the spindle axis relative to the workpiece. Vertical milling uses a spindle that is oriented vertically, allowing for operations like face milling, end milling, and slotting. Horizontal milling employs a spindle that is oriented horizontally and is often used for heavier cutting operations and for producing long, narrow slots.

Milling machines are the primary equipment used for fräsaaminen. These machines can be manually operated, computer numerically controlled (CNC), or a combination of both. CNC milling machines offer high precision, repeatability, and the ability to produce intricate designs that would be difficult or impossible to achieve with manual control. The workpiece is typically held in a vise or clamped directly to the machine's table, which can move in multiple axes to guide the cutter through the material.

The materials that can be milled are extensive, including metals like aluminum, steel, and brass, as well as plastics, wood, and composites. The choice of cutting tool material, such as high-speed steel (HSS), carbide, or diamond, depends on the workpiece material and the desired cutting performance. Fräsaaminen is a fundamental process in many industries, including automotive, aerospace, medical device manufacturing, and general machining.