Techniques to reduce the cost of plastic molds II

Product design change

Plastic mold companies often encounter such a situation. In a project, the mold has just been designed, the mold frame has just been ordered back, but the customer's change notice comes. If it is a small change, it will not affect the overall structure of the mold. Sometimes more seriously, due to the change in the shape of the product, it is necessary to add a mechanism in the mold, or even to reorder the mold. The cost has increased. So minimize design changes. There are many rapid prototyping methods available. Before mold production, 3D technology is used for vehicle assembly, and the three dimensions of the product can be corrected in time to minimize the increased cost due to product design changes. We were involved in the development of German brand cars. The model is going to Germany for trial assembly. The plane jolted back and forth dozens of times. This cost is a material or processing fee. It's really hard to say.

Is the mold design perfect?

There are two scenarios to analyze:

First, the rationality and processability of mold design

In the general mold company, there must be experienced old designers in the design team, as well as young engineers who have just graduated. We can't ask young engineers to independently design advanced molds when they first arrive at the company. Experienced mold engineers, if the mold structure is produced behind closed doors, can not be perfect, there will certainly be some casual details. One of the most important and effective methods is collective review. There are many kinds of simulation methods, such as mold flow analysis, mold structure dynamic analysis, trial-produced products and three-dimensional design comparative analysis, which can minimize the cost increase caused by unreasonable mold design.

Second, design waste

If the mold user requires the mold to produce only 500 samples to open up the market, and we design the mold according to the life of 300,000 times, the cost will be very large, which is a waste of design.