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What Precision Parts Can CNC Machining Make?

Dec. 03, 2019

CNC machining is a very convenient and effective manufacturing technology. It uses computer numerical control (CNC) technology to control machines and tools that process various materials and items. So what precision parts can CNC machining make? CNC Precision Machining Parts Manufacturer will tell you next.

CNC precision parts processing materials that can be processed on machine tools:

Almost all machining materials can be used on CNC machines. It really depends on the application. Common materials include metals such as aluminum, brass, copper, steel, and titanium, as well as wood, foam, fiberglass, and plastics such as polypropylene, ABS, POM, PC, nylon, and more. But some materials are too soft or too rigid, and are not suitable for machining on CNC machine tools. For example, materials such as rubber or silicone are too soft for CNC machining, and ceramics are too hard for precision machining.

CNC Precision Machining Parts

CNC Precision Machining Parts

Common CNC precision parts processing applications:

Using CNC technology and various cutting tools, you can make almost anything on CNC machine tools, from marine parts, mechanical parts to aerospace parts, these parts are usually high-precision parts, including shafts, gears, bushings, flywheels, cams, molds , Propellers and other products that can be produced on CNC machines depend on the type of machine used. Each type of CNC machine has its own machining capabilities for manufacturing unique component properties. For example, round or spherical parts produced in a CNC turning center cannot be produced in a CNC milling machine. Parts produced from milling machines cannot be produced with CNC lathes, etc.

Parts that can be processed by CNC Turning:

In the CNC machining industry, CNC lathes are used to process linear cylinders, inclined cylinders, arcs, and various threads, grooves, and worms. They can also process complex rotating surfaces, such as hyperboloids. Typical CNC turned parts include shift knobs, knobs, pulleys, shafts, hubs, bushings, flywheels, etc.

Products that can be machined with CNC precision parts for milling:

CNC milling machine is mainly used to process various complex plane, curved and shell parts, for example, various cams, molds, connecting rods, blades, propellers, boxes, and shell shape parts are all CNC milled. In summary, typical CNC milling parts can be divided into three categories: flat parts, surface parts and angle steel parts.

Each machine has its own accuracy level and processing sequence. Sometimes, some processing equipment will be used to make certain parts. So what can't CNC machining do?

Almost all parts can be manufactured on CNC machines, but there are some limitations. Parts with certain functions are not suitable for CNC machining. These functions include:

1. Inner vertical angle

Since the CNC milling tool has a cylindrical shape, it will leave a radius at vertical angles when cutting the inner wall. Although the diameter of the tip can be reduced by using a smaller diameter tool, no matter how small the diameter of the tool is, the internal vertical angle cannot be made.

2. Precision parts with deep cavity

Due to the limited cutting length, tools usually perform best when the cutting depth reaches a cavity of 2-3 times its diameter. Milling pockets with a depth more than 4 times the diameter of the tool will greatly increase machining difficulty and tool damage,

3. Thin-walled precision parts

Thin walls are difficult to machine and are easily deformed or broken during CNC machining. Thin-walled machining requires multiple passes at low cutting depths, and thin features are also prone to vibration, so accurately machining them is challenging and increases processing time.

4. Precision parts with cutouts

Since the cutting tools cannot reach there for any machining, it is difficult to machine some cuts in the inner wall of the part with CNC.

Therefore, it is recommended to avoid using these functions before designing CNC Precision Machining Parts. CNC machining provides precise cutting and operating functions, it is easy to say that almost all products made of wood, metal, aluminum, alloys and various other materials can be completely constructed or improved by using CNC machine tools. CNC has its limitations, so it is recommended to avoid shortcuts before designing CNC machining precision parts.