Considerations in purchasing mould

In the purchase of products, the premise is generally quality. Only the products with good quality can ensure the efficiency of our work and the quality of products. For example, when we CNC processing, the most important is the mold, only good mold can make good products, this matter is very important. The mould will wear after a long time of operation, which will definitely affect the product. So it is very important to choose a good mold, so let’s understand what problems should be considered when choosing a mold?

1. There are many kinds of molds, which can be roughly divided into ten categories. According to the different requirements of parts material, physical and chemical properties, mechanical strength, dimensional accuracy, surface finish, service life and economy, different types of die forming are selected.
2. The die with high precision needs to be processed by high-precision CNC machine tool, and the die material and forming process have strict requirements, and CAD / CAE / CAM die technology is also needed to design and analyze.
3. Due to the special requirements of some parts, the mold also needs to use advanced technology such as hot runner, gas assisted molding, nitrogen cylinder and so on.
4. The manufacturer shall be equipped with CNC, EDM, WEDM and NC profiling milling equipment, high-precision grinder, high-precision CMM, computer design and relevant software.
5. Generally, large stamping dies (such as automobile cover parts mould) should consider whether the machine tool has blank holder mechanism, or even edge lubricant, multi position progressive, etc. In addition to stamping tonnage, punching times, feeding device, machine tool and die protection device should be considered.
6. The above mold manufacturing means and technology are not owned and mastered by every enterprise. When selecting the mold processing factory, we must understand its processing ability, not only depends on the hardware equipment, but also combined with the management level, processing experience and technical strength.
7. For the same set of mould, there is sometimes a big gap between quotations from different manufacturers. You should not pay more than the value of the mold, at the same time, should not be less than the cost of the mold. Mold manufacturers like you, to make a reasonable profit in the business. Ordering a set of molds with a much lower price would be the beginning of trouble. Users should start from their own requirements and measure comprehensively