Vorfräsung

Vorfräsung is a milling process used in manufacturing and woodworking. It involves a preliminary milling operation that removes a significant amount of material from a workpiece before a final, more precise milling step. This initial roughing out process is often carried out with a less refined tool or at higher speeds to quickly establish the basic shape or cavity. The primary purpose of vorfräsung is to reduce the burden on the finishing tool, allowing it to perform its task more efficiently and with less wear. By removing bulk material beforehand, the final milling operation can concentrate on achieving tighter tolerances, smoother surface finishes, and intricate details. This two-stage approach can significantly improve machining productivity, tool longevity, and the overall quality of the finished part. It is commonly employed in the production of molds, dies, complex geometric shapes, and in the preparation of surfaces for subsequent treatments like welding or coating. The depth and pattern of the vorfräsung are determined by the specific requirements of the final machining step and the material being worked.