The DL diagram is actually the so-called mold process component diagram. If we want to express it more clearly, let's take it as an example. After designing the appearance of a product, the designer needs someone to make it. How to make it? Divide the appearance into several pieces reasonably. In the actual stamping process, the machine can make it and then integrate it into the design requirements!

At this time, we need a process flow chart to teach people how to do it step by step. This is the DL chart. DL charts are very demanding. In addition to the normal part size, angle and detailed step-by-step process flow, it is also attached with ejector pin distribution map, waste discharge schematic diagram, waste cutting edge state map and so on. If you do CAE analysis, it is best to express the state of the material after shrinkage through DL diagram, because any company has hardware. You can adjust the production line and produce the specified components through the steps of DL drawing. At present, it is mainly used for automobile panel dies in China, and AutoCAD software is generally used for drawing. Because the mold industry is a new industry in China, there is no really detailed drawing standard for DL drawing, but the requirements described above are basically the default requirements in the industry.