Due to domesticLost wax castingMost of the mold manufacturing companies are small and medium-sized enterprises, and a considerable part of them are still in the traditional workshop-style production management stage, often neglecting the stability of the mold, causing problems such as long mold development cycle and high manufacturing cost, which seriously restrict the enterprise The pace of development.

What is the stability of die-casting hardware mold and stamping forming and its influencing factors? Stability is divided into process stability and production stability. Process stability refers to a stable process plan for producing qualified products; production stability refers to a stable production capacity during the production process.

For this reason, it is also necessary to install a tensile rib that can produce greater resistance on the blank holder to increase the resistance of the feed, so that the material produces greater plastic deformation to meet the requirements of plastic deformation and plastic flow of the material. At the same time, by changing the size and distribution of the resistance of the stretching ribs, and controlling the speed of the material flowing into the mold and the amount of feed, the effective adjustment of the tensile force and its distribution in each deformation zone of the stretched part is realized, thereby preventing stretching Product quality problems such as cracks, wrinkles, and deformation during forming.

It can be seen from the above that in the process of drawing up the stamping process and mold design, the tensile resistance must be considered, and the tensile ribs should be arranged according to the range of blank holder force and the form of the tensile ribs should be determined so that each deformation area is deformed as required. The way and the degree of deformation are completed. First, let us take a look at the main factors that affect the stability of the die and stamping forming. They are:Guangdong alloy steel castingThe method of using mold materials; the strength requirements of mold structural parts; the stability of stamping material properties; the fluctuation characteristics of material thickness; the variation range of material; the resistance of tensile ribs; the variation range of blank holder force; the choice of lubricant.

Comprehensively weigh various factors that affect stability

It is worth noting that in the stamping process, since each stamping sheet has its own chemical composition, mechanical properties and characteristic values ​​closely related to the stamping performance, the performance of the stamping material is unstable, the thickness of the stamping material fluctuates, and The change of the stamping material not only directly affects the accuracy and quality of the stamping forming process, but may also cause damage to the mold. For die-casting parts, stretch ribs are taken as an example, which occupies a very important position in stamping forming.

In the stretch forming process, the forming of the product requires a certain amount of tensile force that is appropriately distributed along the fixed periphery. This tensile force comes from the force of the stamping equipment, the deformation resistance of the material at the edge, and the flow resistance on the blank holder surface . If the flow resistance only depends on the blank holder force, the friction between the mold and the material is not enough.

Since most of the domestic mold manufacturing companies are small and medium-sized enterprises, and a considerable part of these companies are still in the traditional workshop-style production management stage, they often ignore the stability of the mold, causing problems such as long mold development cycles and high manufacturing costs. Restricted the pace of development of the enterprise. Lighting processing

In mold design and manufacturing, the experience and skills of designers play a key role.

Guangdong carbon steel castingWhether the design is reasonable or not can only be confirmed by trial mode; while the mold needs to go through multiple trial modes and repeated modifications before it can be finally completed. In production practice, once some molds are put into use on the production line, they often have various problems, which cannot meet the production requirements or technical requirements of the product, resulting in abnormal shutdown of the production line, etc., which brings many unstable factors. Therefore, how to improve the stability of molds has become a practical problem faced by mold manufacturers.