Parallelism Measurement of Press Line during a Stamping Process Using High Speed Digital Image Correlation

A novel method to measure parallelism of press line under dynamic operation by using high speed digital image correlation (HSDIC) system is presented. The construction and working principle of the measurement system are studied. Target with mark field array is designed, which achieve the continuous measurement during slide moving. The data evaluation method was discussed in detail. The results demonstrate that the full-field digital image correlation is an effective method to quantify the parallelism of press line during the press line operation.