Jinan City Hongjie Mold Co., Ltd. with you to understand what Jinan mold production pays attention to! Why pay attention to these? What are the factors?
First, workpiece surface condition: in the process of machining, the surface layer will be damaged due to heat, internal stress or other factors, and improper cutting parameters will affect the polishing effect. The surface after EDM is more difficult to grind than the surface after machining or heat treatment. Therefore, EDM finishing should be used before the end of EDM, otherwise the surface will form a hardened thin layer. If the EDM finishing standard is not selected properly, the maximum depth of the heat affected layer can reach 0.4mm. The hardness of the hardened layer is higher than that of the base, which must be removed. Therefore, try to add a rough grinding to provide a good foundation for polishing.
2. Heat treatment process: if the heat treatment is improper, the hardness of the steel surface is uneven or the characteristics are different, which will cause difficulties in polishing.
Third, polishing technology: because polishing is mainly done by hand, so people's skills are still the main reason to affect the quality of polishing. Generally speaking, polishing technology affects the surface roughness. In fact, a good polishing technology needs to cooperate with high-quality steel and correct heat treatment process to obtain a satisfactory polishing effect; otherwise, if the polishing technology is not good, even if the steel is no better, it can not achieve a mirror effect.
Fourth, the quality of steel: high quality steel is the prerequisite for good polishing quality, and various inclusions and pores in steel will affect the polishing effect. In order to achieve a good polishing effect, the workpiece must be marked with the surface roughness when it is machined. When a workpiece is determined to need mirror polishing, the steel with good polishing performance must be selected and all of them must be heat treated, otherwise the expected effect will not be achieved
1. The cavity layout should be reasonable. The balanced layout shall be adopted as far as possible, so as to set the balanced shunt channel. The cavity layout and gate opening parts shall be symmetrical as much as possible, so as to prevent the overflow caused by the eccentric load of the injection mold. The cavity arrangement shall be as compact as possible, so as to reduce the overall dimension of the injection mold.
The above is from Jinan Hongjie Mold Co., Ltd. with you to understand the mold production focus is what! Why pay attention to these? What are the factors? I hope you have some understanding! Welcome to http://www.jnhjgs.cn