Introduction to the characteristics of abrasive tools processed by CNC lathes

Introduction to the characteristics of abrasive tools processed by CNC lathes

The mold in CNC lathe processing is an important item, so what characteristics should the mold have when I process it on the CNC lathe? Let’s take a look at it together.

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

 

2. The production of small batch molds is not mass production. In many cases, there is often only one payment.

3. Complicated shape and surface Some products such as automobile covering parts, aircraft parts, toys, and household appliances, the shape of the surface is composed of multiple curved surfaces. Therefore, the mold cavity surface is very complicated. Certain surfaces must be processed by mathematical calculations.

 

4. The mold used for repeated production is life-long.. When a mold is used beyond its life, it needs to be replaced with a new mold, so the production of the mold is often repeated.

 

5. Multiple processes such as milling, boring, drilling, reaming and tapping are always used in mold processing.
There are sometimes no drawings or data in the production of duplicate molds, and they should be processed according to physical objects. This requires high imitation accuracy and no deformation.

 

The main material of the mold is high-quality alloy steel, especially the long-life mold, which is usually made of Crl2, CrWMn, etc. This kind of steel has strict requirements from rough forging, processing to heat treatment. Therefore, the preparation of the processing technology cannot be ignored, and heat treatment deformation is also a serious problem in processing.

 

Therefore, according to the above characteristics, when choosing CNC lathes, try to meet the processing requirements.. For example, the CNC numerical control system has strong functions, high precision of the machine tool, good rigidity, good thermal stability, and has the characteristics of copying function.

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