During the processing of the mold, it is necessary to follow the specified process in order to ensure the accuracy of the mold and product quality. Mold processing is a complex process, and we must make this process accurate when processing. What is the mold processing process? Let's talk about it in detail.
The mold processing process generally includes: mold blank preparation - rough machining of parts - semi finishing - heat treatment - finishing - cavity surface treatment - mold assembly - machine commissioning.
1、 Mold blank preparation
Most of the die blanks are metal. Taking forging as an example, the raw materials for forging are generally bars, plates and pipes. Operators mainly choose according to the specific shape and geometric size of the blank. For sheet blanks, ordinary blanking or precision blanking can be used. If it is necessary to forge the annular parts, the pipe can also be used to cut the blank.
2、 Rough machining of parts
For rough machining of parts, we take milling as an example. As long as the outline and island of the part are given, the machining path can be generated. And the arc can be automatically added at the sharp corner of the track to ensure that the track is smooth, so as to meet the requirements of high-speed machining. It is mainly used for milling planes and grooves. Multiple contours and islands can be selected for processing.
3、 Semi finishing
The semi finishing stage is to complete the processing of the secondary surface and prepare for the finishing of the main surface.
4、 Heat treatment
Heat treatment is a comprehensive process in which materials are heated, insulated and cooled in a certain medium, and their properties are controlled by changing the surface or internal structure of materials. The heat treatment process generally includes three processes: heating, insulation and cooling, and sometimes there are only two processes: heating and cooling. These processes are interconnected and uninterrupted.
5、 Finish machining
The machining allowance of finish machining is smaller than that of rough machining. Select good props for cutting, control the walking speed and rotation speed of props, and pay attention to the size and gloss appearance of materials.
6、 Cavity surface treatment
Different surface treatment methods of the mold can change the chemical composition, structure and properties of the mold surface, and greatly improve the surface properties of the mold. Such as hardness, wear resistance, friction performance, demoulding performance, heat insulation performance, high temperature resistance and corrosion resistance. This step is of great significance for improving mold quality, greatly reducing production costs, improving production efficiency and giving full play to the potential of mold materials.
7、 Mold assembly
According to certain specified technical requirements, the process of assembling parts into components and combining them into components and even the whole machine. There are two forms of assembly, one is fixed assembly, and the other is mobile assembly. Different assembly methods are selected for different batch production.
During the assembly process, some mold parts need to be polished and trimmed. The main content of mold assembly is to assemble the processed mold parts and standard parts into a complete mold according to the requirements of the mold assembly drawing. After the mold test, some parts need to be adjusted and repaired to make the parts produced by the mold meet the requirements of the drawing, and the mold can work continuously normally, so that the processing of the mold can be completed.
