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Views: 6 Author: Site Editor Publish Time: 2017-07-07 Origin: Site
High-precision machining a mold is normally provided by the die, punch and mold composed some pieces may also be split module. Thus, the split between the lower die, a combination of the cavity and insert the module require a high precision. Dimensional accuracy of precision molds often reached μm level.
Small quantities of molds is not mass-produced in large quantities in many cases tends to produce only a pair.
Shaped face some complex products such as automotive panels, aircraft parts, toys, household appliances, and its surface shape is formed by a combination of a variety of surfaces, so the mold cavity surface is very complex. Some surfaces must be processed using mathematical calculations.
The total process of multi-use to mold milling, multi-step boring, drilling, reaming and tapping, etc.
The use of repetitive production mold is life. When using a pair of molds over their lifetime, it is necessary to replace the new mold, so mold production often repetitive.
Profiling mold sometimes neither pattern nor the data, but also to carry out profiling based on the physical. This requires that generic high precision, without distortion.
Mold material is excellent, the main material hardness to use more high-quality steel mold manufacturing, especially the high life of the mold, often used Crl2, CrWMn etc. ledeburite manufacturing. Such steel from the rough forging, heat treatment process to have strict requirements. Therefore, the preparation process is even more can not be ignored, heat deformation processing also need to take seriously the problem.
According to many of the above characteristics, as far as possible in the selection of tools to meet the processing requirements. Such as functional CNC system stronger, higher precision machine tools, better rigidity, thermal stability is better with copying functions.
