Several problems that need to be paid attention to in mold making

Update:05-05-2019
Summary:

Don't just focus on product design, ignore mold manufac […]

Don't just focus on product design, ignore mold manufacturing
Some users often only focus on product development and development when developing products or new products, and neglect communication with mold making units. After the product design plan is initially determined, there are two advantages to contacting the mold manufacturer in advance:
First, it can ensure that the designed product has a good forming process, and will not modify the stereotyped design because the part is difficult to process.
Second, the mold maker can make design preparation in advance to prevent inconvenience in the rush, affecting the construction period.
In short, to produce high-quality molds, only the close cooperation between the supply and demand sides can ultimately reduce costs and shorten the cycle.
· Don't just look at the price, we must consider all aspects of quality, cycle and service.
There are many types of molds, which can be roughly divided into ten categories. According to the different requirements of parts materials, physical and chemical properties, mechanical strength, dimensional accuracy, surface finish, service life, economy, etc., different types of mold forming are selected.
Molds with high precision requirements need to use high-precision CNC machine tools, and the mold materials and forming processes are strictly required. CAD / CAE / CAM mold technology is also needed to design and analyze. Some parts have special requirements for molding, and the mold also needs to use advanced processes such as hot runner, gas-assisted molding, and nitrogen cylinder. Manufacturers should have CNC, EDM, wire cutting machine tools and CNC copy milling equipment, high-precision grinding machines, high-precision three-coordinate measuring instruments, computer design and related software. Generally, large-scale stamping dies (such as automotive cover molds) should consider whether the machine has a crimping mechanism, or even a lubricant, multi-station grade. In addition to punching tonnage, it is necessary to consider the punching, feeding device, machine tool and mold protection device.
The manufacturing methods and processes of the above molds are not available and mastered by every enterprise. When choosing a collaborative manufacturer, you must understand its processing capabilities, not only look at hardware equipment, but also combine management level, processing experience and technical strength.
For the same set of molds, there are sometimes large gaps in the prices of different manufacturers. You should not pay more than the cost of the mold, and should not be less than the cost of the mold. Mold manufacturers, like you, have to make a reasonable profit in the business. Ordering a set of molds with much lower quotations can be a hassle to start. Users must proceed from their own requirements and comprehensively measure them.
· Avoid multi-head collaboration, try to make mold and product processing one-stop
With a qualified mold (test piece qualified), it is not always possible to produce a batch of qualified products. This is mainly related to the selection of the machine tool for the part, the forming process (forming temperature, forming time, etc.) and the technical quality of the operator. With good molds, there must be good forming, it is best to work together to avoid long-term collaboration. If the conditions are not available, you must choose one party to be fully responsible, and you must write clearly when you set the contract.