1、 Don’t just focus on product design, ignore plastic mold manufacturing.
Some users in the development of products or trial production of new products, often focus on product development and development at the initial stage, ignoring the communication with the plastic mold production unit. After the product design scheme is preliminarily determined, there are two advantages to contact the mold manufacturer in advance:
1. It can ensure that the designed product has a good forming process, and it will not modify the finalized design because the parts are difficult to process.
2. The mold maker can make design preparation in advance to prevent improper consideration in a hurry and affect the construction period.
3. To make high quality plastic mould, only when the supplier and the demander cooperate closely can the cost be reduced and the cycle be shortened.
2、 Don’t just look at the price, but consider the quality, cycle and service in an all-round way.
1. There are many kinds of molds, which can be roughly divided into ten categories. According to different requirements of part material, physical and chemical properties, mechanical strength, dimensional accuracy, surface finish, service life, economy, etc., different types of die forming are selected.
2. The die with high precision needs to be processed by high precision CNC machine, and the die material and forming process are strictly required. CAD / CAE / CAM die technology is also needed to design and analyze.
3. Some parts have special requirements when forming, and the mold also needs to use advanced technology such as hot runner, gas assisted molding, nitrogen cylinder, etc.
4. The manufacturer shall have CNC, EDM, WEDM and CNC profiling milling equipment, high-precision grinder, high-precision three coordinate measuring instrument, computer design and relevant software, etc.
5. Generally, large stamping dies (such as automobile covering dies) should consider whether the machine tool has a blank holder mechanism, even edge lubricant, multi position progressive and so on. In addition to the punching tonnage, the punching times, feeding device, machine tool and die protection device should be considered.
6. The manufacturing means and process of the above mould are not possessed and mastered by every enterprise. When choosing a cooperative manufacturer, we must know its processing ability, not only from hardware equipment, but also from management level, processing experience and technical force.
7. For the same set of mould, there is sometimes a big gap in the quotation of different manufacturers. You should not pay more than the value of the mold, but also should not be less than the cost of the mold. Mold manufacturers, like you, should make reasonable profits in business. Ordering a set of molds with a much lower price will be the beginning of trouble. Users should start from their own requirements and measure them comprehensively.
3、 Avoid multiple cooperation, try to make plastic mold and products processing.
1. With a qualified mold (qualified test piece), it is not necessarily possible to produce a batch of qualified products. This is mainly related to the selection of machining machine tools, forming process (forming temperature, forming time, etc.) and the technical quality of operators.
2. With a good mold, but also have a good forming process, the best is one-stop cooperation, try to avoid multi cooperation. If the conditions are not met, it is necessary to select a party who is fully responsible and write clearly at the same time.
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