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The basic characteristics of precision mold processing

Categories:Industry News
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Time of issue:2021-08-20
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(Summary description)Complicated shape and surface Some products, such as car covers, aircraft parts, toys, and household appliances, have a surface that is composed of a variety of curved surfaces, and some curved surfaces must be processed by mathematical calculation methods.

The basic characteristics of precision mold processing

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The basic characteristics of precision mold processing

Categories:Industry News
Author:
Origin:
Time of issue:2021-08-20
Views:0

Information

The basic characteristics of precision mold processing:

1. Complicated shape and surface Some products, such as car covers, aircraft parts, toys, and household appliances, have a surface that is composed of a variety of curved surfaces, and some curved surfaces must be processed by mathematical calculation methods.

2. High processing precision requirements: A mold is generally composed of a concave mold, a convex mold and a mold base, and some may also be a multi-piece split module. The combination of upper and lower molds, the combination of inserts and cavities, and the assembly of modules require high machining accuracy. The dimensional accuracy of precision molds often reaches the μm level.

3. There are many precision mold processing procedures: milling, boring, drilling, reaming and tapping are always used in mold processing.

4. Repeated production: the use of molds has a long life. When a mold is used beyond its life, it must be replaced with a new mold, so mold production is often repetitive.

5. Small batch: The production of molds is not mass production, and in many cases only one is produced.

6. Profiling processing: Sometimes there is neither pattern nor data in mold production, and profiling processing must be carried out according to the actual object. This requires high imitation accuracy and no deformation.

7. Excellent mold material and high hardness. The main material of the mold is mostly made of high-quality alloy steel, especially the long-life mold, which is often made of ledeburite steel such as Crl2 and CrWMn. This kind of steel has strict requirements from blank forging, processing to heat treatment. Therefore, the preparation of processing technology cannot be ignored, and heat treatment deformation is also a problem that needs to be taken seriously in processing.

According to the above-mentioned many characteristics, it is necessary to meet the processing requirements as much as possible in the selection of machine tools. For example, the function of the CNC system should be strong, the precision of the machine tool should be high, the rigidity should be good, the thermal stability should be good, and it has the function of profiling.

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