Jyrsintäprosessien

Jyrsintäprosessit refers to milling processes in Finnish. Milling is a subtractive manufacturing method that uses rotary cutters to remove material from a workpiece. This process is used to create a wide variety of parts and components with high precision and complex geometries.

There are several types of milling processes, including face milling, peripheral milling, and end milling. Face milling involves using a milling cutter that rotates on its axis and machines a flat surface. Peripheral milling, also known as climb milling or conventional milling, uses the rotation of the cutter to cut into the workpiece. End milling uses a cutter that has cutting edges on its periphery and end, allowing for both horizontal and vertical cutting.

The workpiece in a milling process is typically held stationary on a milling machine table or a fixture. The milling cutter, mounted on a spindle, rotates at high speed and moves across or into the workpiece, removing material in the form of chips. The depth and rate of material removal are controlled by the feed rate and spindle speed, as well as the type and diameter of the cutter.

Milling can be performed on various materials, including metals, plastics, and composites. The choice of cutter material, such as high-speed steel (HSS) or carbide, depends on the workpiece material and the desired cutting performance. The process is crucial in industries like automotive, aerospace, and mold making, where precise and intricate parts are required. Advanced milling techniques, such as CNC (Computer Numerical Control) milling, allow for automated and highly repeatable production of complex shapes based on digital designs.