CNC machining is commonly used for which parts of auto are processed

CNC machining occupies a very high position in CNC equipment. Many parts processing companies will use CNC machining centers. So what types of parts can CNC machining machine? As we all know, CNC machining centers are suitable for machining parts that are complex, have many processes, have high requirements, require many types of ordinary machine tools and a variety of tool fixtures, and need to be machined after multiple clamping adjustments. Its processing objects are mainly box parts, complex surfaces, special-shaped parts, wrapped parts and special processing.

 

(1) Box parts.

 

Box parts generally refer to parts with multiple hole systems, internal cavities, length, width and height with a certain proportion. Such parts are mostly used in machine tools, automobiles, aircraft manufacturing and other industries. Box-shaped parts generally require multi-station hole system and plane processing, tolerance requirements are high, especially the shape and position tolerance requirements are relatively strict, usually to go through milling, drilling, expansion, boring, reaming, countersinking, tapping and other processes, requiring more tools. For machining centers for machining box parts, horizontal boring and milling machining centers are generally selected when there are many processing stations and parts that require multiple rotations of the table to complete.

 

(2) Complex surfaces.

 

Complex surfaces occupy a particularly important position in the mechanical engineering industry, especially in the aerospace industry. Complex surfaces are difficult or even impossible to complete using ordinary machining methods. In China, the traditional method is to use precision casting, which can be imagined that its accuracy is low. Complex curved parts such as: various impellers, air guide wheels, spherical surfaces, various surface forming molds, propellers and underwater vehicle propellers, and other free-form surfaces.

(3) Special-shaped parts.

 

Special-shaped parts are irregularly shaped parts, most of which require multi-station mixed processing of points, lines and surfaces. The rigidity of special-shaped parts is generally poor, the clamping deformation is difficult to control, the processing accuracy is difficult to guarantee, and even some parts of some parts are difficult to complete with ordinary machine tools. When processing with a machining center, reasonable technological measures should be taken, one or two clamping, and the characteristics of multi-station, line and surface mixed processing of the machining center should be used to complete multiple processes or all processes.

 

(4) Discs, sleeves and plates.

 

End face with keyway, or radial hole, or distributed hole system, crankdisk sleeve or shaft parts, such as flange bushings, keyways or square head shaft parts, etc., as well as multi-hole machining plates, such as various motor end faces with distribution holes and curved disc parts should be selected vertical machining center, and horizontal machining center with radial hole should be selected.

 

(5) Trial production parts for new products

 

The machining center is adaptable and flexible. When changing the machining object, you only need to compile and enter a new program to achieve machining.
 

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