1, the nature of the difference: the cost of the hand plate model is relatively small, mainly used for testing, so the number is usually not too much, and due to CNC machining, vacuum laminating, 3d printing and other technologies continue to mature, the cost of making the hand plate compared to the previous has been a substantial decline. And the cost of directly making molds is usually tens or hundreds of thousands of dollars, and medical equipment and robotics type of mold fees are more in the big millions.
2, the use of time is different: the handboard model of the time used less, generally speaking, the time spent on the mold is very long, less than half a month, more than a few months or even longer. And do handboard model cycle is very short, usually a few days on it, if it is using 3d printing to do, the speed is faster, usually the same day on it.
3, spend different: hand plate model can be used as a sample before the product is not on the market before the exhibition to show, do a good job in advance of the promotion of new products, and even directly in the exhibition to obtain orders, and open the mold does not have such advantages. To sum up, the hand-board model is better than the open mold in terms of less cost and shorter time.
Expanded information:
Precautions:
1, there are many types of molds. Roughly can be divided into ten categories. According to the part material, physical and chemical properties, mechanical strength, dimensional accuracy, surface finish, service life, economy and other different requirements, choose different types of mold forming.
2, high precision molds require the use of high-precision CNC machine tools, and mold materials, molding process have strict requirements, but also need to use CAD / CAE / CAM mold technology to design, analysis.
3, some parts due to the molding of special requirements, molds also need to use hot runner, gas-assisted molding, nitrogen cylinders and other advanced technology.
Baidu Encyclopedia - Mold Opening