subject: Sensing system for metal stamping forming tool [print this page] There is a need for an accurate system for sensing the presence of a blank or metal stamping part. There is a further need for a part sensing system that provides a quick response and is capable of providing an accurate indication of the presence of a partthroughout a forming cycle. By providing an improved part presence detecting system a reduction in false signals from the part sensing system can result in reduced downtime and scrap.