试验材料选用抚钢Cr12Mo1V1钢坯，坯料尺寸：40mm×280mm×600mm共计4件。首先进行Cr12Mo1V1模具钢坯料的粗加工，经过切割、铣磨加工过后，坯料分别标记为DRT-A、DRT-B、DRT-C、DRT-D；按照厚度预留5mm，长宽预留10mm余量的原则进行锯切加工，锯切料尺寸：45mm×290mm×610mm；按照双边预留2.0mm余量进行铣磨加工，提高坯料表面光洁度。

The test material was made of steel Cr12Mo1V1, whose size was 40mm × 280mm × 4 pieces in total, 600mm. First of all, the rough processing of Cr12Mo1V1 was carried out. After cutting and grinding, the materials were marked as DRT-A, DRT-B, DRT-C, DRT-D; According to the principle of 5mm in thickness and 10mm in length and width, the cutting material should be 45mm in size × 290mm × 610mm; To improve the surface finish of the material, the grinding was done according to the reserve of 2.0mm on both sides.