All kinds of tools and products used in our daily production and life, ranging from the base of the machine tool to the shell of the fuselage, as small as the embryo head screw, button and the shell of various household appliances are closely related to the mold. The shape of the mold determines the shape of these products, and the processing quality and precision of the mold also determine the quality of these products. Because of the material, appearance, and different specifications and uses of various products, molds are divided into casting molds, forging molds, die-casting molds, stamping molds and other non-plastic molds, as well as plastic molds. In order to ensure the effect of plastic
mold manufacturing, what should we pay attention to? The following Shanghai Plastic Mold Factory will tell you three precautions for plastic mold manufacturing.
1. Don't just focus on product design and ignore the manufacture of plastic molds.
Some users often only focus on product development and ignore communication with plastic mold production units when developing products or trial production of new products. After the product design plan is initially determined, there are two advantages to contacting the mold manufacturer in advance:
1. It can ensure that the designed product has a good molding process, and the finalized design will not be modified because the parts are difficult to process.
2. Design preparations can be made in advance for
mold making to prevent haste and poor consideration from affecting the construction period.
3. To make high-quality plastic molds, only the close cooperation between supply and demand can ultimately reduce the cost and shorten the cycle.
2. It depends not only on price, but also on quality, period, and service.
1. There are many types of molds, which can be roughly divided into ten categories. According to the part material material. Physical and chemical properties. Mechanical strength. Dimensional accuracy. Surface finish. Service life. Choose different types of molds for different requirements such as economy.
2. Molds with high precision requirements need to be processed by high-precision CNC machine tools. Mold materials and forming processes have strict requirements, and CAD/CAE/CAM is required to design and analyze mold technology.
3. Since some parts have special requirements when forming, the mold also needs to adopt advanced technologies such as hot runner, gas-assisted molding, and nitrogen cylinder.
4. Manufacturers should have CNC, EDM, WEDM machine tools and CNC profiling milling equipment, high-precision grinding machines, high-precision three-coordinate measuring instruments, computer design and related software, etc.
5. General large-scale stamping dies (such as automobile covering dies) should consider whether the machine tool has a blank-holding mechanism, or even an edge lubricant. Multi-station grade. In addition to punching tonnage, punching tonnage should also be considered. . Feeding device. Machine tool and mold protection device.
6. The manufacturing methods and processes of the above-mentioned molds are not owned and mastered by every enterprise. When choosing a cooperative manufacturer, we must understand its processing capabilities, not only hardware equipment, but also management level, processing experience and technical strength.
7. For the same set of molds, the quotations of different manufacturers sometimes vary greatly. You should not pay more than the mold is worth, nor less than the cost of the mold. A mold maker like you deserves a reasonable profit in the business. A custom set of molds with a much lower quote will be where the trouble begins. Users must make comprehensive measurements according to their own requirements.
3. Avoid long-term cooperation and try to produce plastic molds and product processing
1. With qualified molds (qualified test pieces), it may not be possible to produce qualified products in batches. This is mainly related to the selection of parts processing machine tools. The forming process (forming temperature, forming time, etc.) is related to the technical quality of the operator.
2. With good molds and good molding processing, it is best to have one-stop cooperation and try to avoid long-term cooperation. If the conditions are not met, it is necessary to choose a party to be fully responsible, and it must be clearly written when signing the contract.
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