Injection mold manufacturing characteristics and requirementsby Jane Li china mold maker
Plastic mold production of general machinery products in common, and also that its particularity. Compared with the general machinery manufacturing, mold manufacturing is generally difficult, especially precision molds. As a special technical equipment, mold production and process are the characteristics of the following aspects.
1. Precision mold manufacturing, high quality requirements, not only requires high precision, but also processing good surface quality. In general, working part mold manufacturing tolerances should be controlled within ± 0.011mm, and some even require within micron range, surface defects after tooling requirements are very strict, and the surface of the working portion of the roughness Ra <0.8 um.
2. shape of sophisticated mold part of the work are generally two-dimensional or three-dimensional complex surface (especially mold cavity), rather than the general machining of simple geometric profile.
3. The mold as a single piece, many varieties of each pair of mold can only produce Moi specific shape, size and precision parts. In the manufacturing process as much as possible the use of common tools, common measuring tools and instruments, as much as possible to reduce the number of special tools. In the manufacturing process arrangement requires relatively centralized process to ensure the quality and accuracy mold, simplify management and reduce the process turnaround time.
The high hardness of the material is actually a plastic mold machining tool, its high hardness, usually made of hardened alloy tool steel or carbide and other materials, if manufactured using conventional machining methods, often compare difficult, so mold processing method different from the general machining.
5. Due to the short production cycle and accelerate product replacement market competition becomes more intense, requiring mold production cycles are getting shorter. Mold production management, design and technological work should meet this requirement, to improve the mold design, manufacturing and standardization, in order to shorten the manufacturing cycle.
6. When a complete set of production parts need more deputy mold, a mold before the products manufactured are mutually implicated restrict Yi blank mold, mold parts, and only eventually qualified parts, which was a series of mold considered qualified. In the production and scheduling of the mold must take full account of this characteristic.
Created on Dec 31st 1969 18:00. Viewed 0 times.