Influence of Die Casting Production Process on Die Casting Die Life
Abstract
Die casting is an important metal forming process and widely used in the production of various components. With the rapid economic development, the application of die casting is more extensive. The life of die casting dies directly affects the die casting production efficiency. Therefore, it is particularly important to do scientific research on the influence of die casting production process on the life of die casting dies. This paper focuses on the influence of die casting production process on the life of die casting dies and makes specific analysis.
1 Introduction
Die casting is a precision casting process. Generally, a metal die or plaster model is used to prepare a die cavity with a certain shape, which is filled with molten metal at high temperature, and then cooled and solidified in the die cavity to obtain a precision casting product. Due to its good casting effect, die casting has been widely used in the production of various components such as engine cylinders, machine housings, auto parts, electrical fittings and machine tool parts. The lifetime of die casting molds directly affects the production efficiency of die casting parts and the economic benefit of die casting enterprises. Therefore, it is particularly important to do scientific research on the influence of die casting production process on the life of die casting molds.
2 Influence of die casting production process on the life of die casting dies
2.1 Structural design of die casting mold
The structural design and manufacturing of die casting dies are related to the life of the dies. If the die structure is not reasonable, the mold strength and toughness are not enough, so that it can not withstand the impact and stress caused by the injection of molten metal, and the die cracking, deformation, blister and partial discharge may occur.
2.2 Pre-processing of die cavity surface
The pre-treatment of the die cavity surface directly affects the life of the die. In order to extend the service life of die casting mold, the pre-treatment of the die cavity surface should be done. After pre-processing, the casting surface of the die is smooth, the adhesion of foreign matter such as scale and oxide skin on the die surface is reduced, the casting speed is improved and the service life of the die is prolonged.
2.3 Process parameters
In the production of die casting products, the process parameters, such as the pouring temperature, injection pressure and cooling time, are closely related to the life of the die casting molds. The pouring temperature should not exceed the allowable temperature of the die casting die, which affects its life. Excessive injection pressure will cause the die casting die to deform or breakage. The cooling time is too short, resulting in insufficient filling rate and thin wall thickness. Therefore, the adjustment of process parameters is also one of the important factors to prolong the life of die casting molds.
3 Conclusion
Die casting is an important metal forming process widely used in the production of various components. Many factors, such as structural design of die casting molds, pre-processing of die cavity surface, and process parameters, affect the service life of die casting dies. Therefore, the correct understanding of the factors that affect the life of die casting dies and the implementation of corresponding improvement measures can effectively extend the life of die casting dies, improve safety and economic efficiency, and ensure the production efficiency of products.
综上所述，压铸成型工艺是一种重要的金属成型工艺，广泛用于生产各种部件。许多因素，如压铸模具的结构设计、型腔表面预处理和工艺参数，都会影响压铸模寿命。因此，对影响压铸模寿命的因素的正确认识，并采取相应的改进措施，可以有效延长压铸模的寿命，提高安全性和经济效益，保证产品的生产效率。
