模具设计与制造专业英语翻译
Spring-loaded pilots should be used for stock exceeding No. 16 gage. A bushed, shouldered design is shown at View c of Figutd 9-11. A slender pilot of drill rod shown at View d is locked in a bushed quill which is countersunk to fit the peened head of the pilot.
Tred slug-clearance holes through the die and lower shoe should be provided, since indi-rect pilots generapeally pierce the strip during a misfeed.