在制作较复杂的成型模时,工件的毛坯展开尺寸很难准确计算,特别是一些几何形状迭加的地方,更无法测量,只能靠剪铁皮一次次地试验,来求其近似展开形体。下面介绍一种简易方法,供参考。取一块药用纱布,将其放进蜡烛油中浸透即取出,把它紧紧地贴在零件上,如有凹进的地方,用手指或其它工具按一按,待蜡烛油冷凝后,取下纱布,剪去毛边,剩下的即是工件形体。测量一下,如相差不大,弄平纱布即 In the production of more complex molding die, the rough size of the workpiece is difficult to accurately calculate the size, especially where some geometry superimposed, more impossible to measure, only by scissors to test again and again to find its approximate expansion body. The following describes a simple method for reference. Take a piece of medicinal gauze, put it into the candle oil soak it out, put it tightly on the parts, if concave place, with your fingers or other tools press, until the candle oil condensation, take Under the gauze, cut the flash, the rest is the workpiece shape. Measure, if not much difference, smooth gauze that