A milling cycle of 20 weld spots shall generally be planned for visible spots in aluminum spot welding, and 50 weld spots in the case of non-visible spots. A higher milling cycle is possible in the individual case, depending on the respective joining task. The cycle number can only be increased with the approval of department TF/VFT. An increase is permissible, particularly on use of DAISPIN, following approval by the department.