Die casting production often encounters new product development and the update of old molds. In general, the internal and external quality of die castings depends on die casting production process parameters such as molten metal temperature, die casting pressure, speed, and speed switching points. But in most cases, it is also closely related to mold design and production. Factors that affect the mold include the number of cavities, the design of the gating system, the type of gate (location and size), and the structure of the casting itself. In order to avoid casting defects caused by mold design, and to inspect and correct some problems in mold making, it is necessary to test the finished mold.
Die-casting mold trial and process parameter optimization
The main purpose of the mold trial is to find out the optimized process parameters and mold modification plan, and it is required that even if the materials, machine settings or environment, and other factors have changed, it is still necessary to ensure that the mold can stably and uninterruptedly produce qualified products in batches. Maximize mold "fit", not just to get a few good tryouts.
Find out the problem with the mold
The mold made by the mold factory is expected to be a mold with good "adaptability" (that is, the molding parameters or process conditions are wide). However, due to poor design considerations or inadequate processing in the production process, some problems often occur, such as excessive size, unsmooth local transition, inappropriate structure, etc., resulting in unqualified castings or mold trial production. cannot be done. And tryout is the most simple, direct, and effective way to find out the problem of the mold.
Find the best forming conditions
In the mold trial process, the mold trial personnel can find a set of the most suitable process data, and this set of data can be used as the default value for setting machine parameters during mass production, and the most suitable mold mass production process can be adjusted according to this set of data. optimum process conditions.
Verify CAE-aided design and improve follow-up work efficiency
CAE analysis software is based on the specifications of real machines, the performance of real alloys, and the real external environment, through computer simulation, the results of simulation calculations. Mold designers can make corresponding corrections to the mold design according to the simulation situation; the analysis data can be directly input as preset values during the mold test of the real machine, and the mold testers can use this to check and analyze whether the mold design is lacking. The defects of the test module can be compared and analyzed with the simulation results to provide a basis for the subsequent process parameter setting.