How to choose die processing machine tool?
There are many kinds of mold, the different working conditions of various molds are very different, and the failure forms are different.
Mold processing has the following seven basic characteristics:
(1) the machining accuracy requirements of a high pay mold is generally composed of concave die and punch and die, some may also is a merging module. So the combination of upper and lower die, combination of insert and cavity, split between modules are required to have high precision. Precision mold size accuracy is often up to m level.
(2) complex shaped surface of some products such as automobile panels, aircraft parts, toys, household appliances, the shape of the surface by a combination of a variety of surfaces, and therefore, the mold cavity surface is very complex. Some surfaces must be treated with mathematical calculations.
(3) the production of small batch molds is not a mass production, in many cases, it is often only a.
(4) in the process of machining, milling, boring, drilling, tapping and tapping screw threads are used in the machining process.
(5) the use of repeated operation of the mold is a lifetime. When the use of a mold to use more than its life, it is to replace the new mold, so the production of the mold is often repetitive.
(6) sometimes neither pattern copying machining of mold production, there is no data, but according to real profile machining. This requires high precision, no distortion.
(7) excellent mold materials, high hardness of the main materials used in high quality alloy steel manufacturing, especially the high life of the mold, often using Crl2, CrWMn, etc.. This kind of steel from rough forging, processing to heat treatment have strict requirements. Therefore, the preparation of processing technology can not be ignored, heat treatment deformation is also a serious problem in processing.
In order to prolong the service life of the die, the working conditions of the die and the failure mode of the die must be based on the selection of the machine tool. As a function of stronger CNC system, machine tool precision, better rigidity, better thermal stability, has the function of copying.
