CNC Machining Fundamentals Guide - Ruitai
Understanding CNC Machining

Article Contents


What is CNC machining?

What Does CNC Stand For?

A Brief History of CNC Machining

CNC Machining Machine Type

3-Axis CNC Machines VS Multi-Axis CNC Machines

Advantages of CNC Machining

How to Choose The Right CNC Machining Service?

CNC Machining Material

CNC Surface Treatment and Finishing

Application of CNC Machining and Industry Cases

CNC Machining Applications and Future Trends


Guide to CNC Machining Basics

With the continuous development of society, traditional manual processing has been difficult to keep up with supply and demand. Therefore, the emergence of CNC machining is undoubtedly a huge change, especially in the field of manufacturing, where both light and heavy manufacturing play a vital role. This guide is definitely a treasure for engineers who want to learn CNC machining or designers looking for CNC machining services. The content of this guide mainly introduces the introductory knowledge of CNC machining, covers the relevant content of current CNC machining, and introduces the origin, manufacturing process, and future development and application of CNC machining.

What is CNC machining?

If described in terms of kinematics, CNC machining is to input CNC programming on the computer, the NC center system sends instructions to the CNC lathe, and the CNC lathe manipulates the CNC tool to complete the machining process on the material. From the perspective of processing technology, CNC machining can be regarded as digital manufacturing technology, subtractive manufacturing technology, or multifunctional manufacturing technology. But whichever description is correct, this is an efficient, automated, modern processing technology today. Nowadays, almost all parts in all walks of life come from CNC machining.

Working Principle of CNC Machining

Today’s CNC machining programs mainly rely on G codes, which control the corresponding tools to precisely cut different materials and form customized parts.

What Does CNC Stand For?

1. Opportunity: In today’s extremely competitive era, as long as you seize the market first, you will be a big step ahead of others. CNC will shorten the processing cycle of parts, helping you to occupy the market share first in time and cost.

2. Professional: Due to the different CNC machine tools, improper operation will cause existing safety hazards, such as sharp edges, moving parts, sparks, hot surfaces, chips and noise problems, burns, fractures, cuts, abrasions, hearing loss, and dangerous eye damage, etc. This is also our original intention to provide CNC machining services, we have professional CNC operators to avoid this from happening.

3. Cost saving: As we mentioned earlier, CNC is a versatile, high-precision process that can process materials of various complex shapes and produce high-volume parts. But before the design drawings come out, the consumption rate of these materials is relatively high, and the traditional processing methods cannot maximize the cost-effectiveness of the materials. If an individual purchases a CNC machine tool for processing, the intermediate process seems simple, but in fact, it is not as good as directly enjoying the CNC machining service, because the subsequent repair and maintenance costs are relatively expensive.

A Brief History of CNC Machining

When it comes to the development of CNC machining, it is inseparable from James Parsons. The original idea of this gentleman was to produce better helicopter blades or other parts through CNC machining. Make the aircraft performance more stable and safe. So there was the first CNC machine tool because the production of this machine tool had a great influence on later generations. In the fifth year after him, that is, in 1952, researchers from the Massachusetts Institute of Technology developed the first CNC machine tool. The CNC machine tool also applied for a patent in 1958, so in order to praise Parsons, people praised him as the father of CNC machining. It was from 1972 to 1976 that CNC really started to announce that it entered the popular stage. At this stage, CNC machining had obviously achieved significant development, which improved the processing accuracy at that time. By 1989, the parts produced by these CNC machine tools had become the processing industry standard.

CNC Machining Machine Type

Due to the diversification of social industries, a single processing machine tool can no longer meet the needs of the social development process, so processing machine tools that meet various processing parts were born. These machines can target complex, high-precision, and small-batch CNC-machined parts. There are many types of CNC machine tools used for processing and production. The following are several common CNC machine tools.

According to the function and type of processed parts, CNC machine tools can be divided into five main processing machine tools: CNC milling machines, CNC lathes, CNC drilling machines, CNC plasma cutting machines, and CNC grinding machines.

CNC milling machine: It has a contour motion system, and is generally divided into vertical CNC milling machine, horizontal CNC milling machine, and gantry CNC milling machine according to the characteristics of the spindle. It allows the machine tool to cut the corresponding raw materials according to the code program input by the CNC programming and has a continuous processing path. It is often used in the process of manufacturing CNC milling parts and can complete the processing of particularly complex parts, such as mold parts and shells. The process of manufacturing parts on a CNC milling machine is usually called CNC milling, which is a subtractive manufacturing process. Processing features: the material is rotated, the position of the tool is fixed, and parts such as grooves, planes, tooth surfaces, helical surfaces, outer circles, and formed surfaces can be processed.


CNC lathe: equipped with tool magazine, CNC machining center with automatic tool change function, capable of performing various cutting operations, such as cutting, turning, drilling, undercutting, end face processing, boring, and knurling, is a highly automated machine tool product. The processing technology carried out on the lathe is generally called turning, which is often used to process cylindrical materials. Processing characteristics: the material is fixed, and the tool rotates.


CNC Drilling Machine: Used for drilling, CNC tools can accurately and quickly determine the position of the drilled hole.


CNC plasma cutting machine: It uses an accelerated hot plasma jet to cut conductive materials, often used to cut metal.


CNC Grinding Machine: A machine that usually uses a rotating wheel to grind raw materials to make the machined parts required for the design. Compared with milling machines and lathes, its CNC programming is easier.


By Bearing

In the CNC machining service industry, there are many machine tools used for machining, which can be distinguished according to the different linkage axes

1. Two-axis linkage: it often appears on the processing rotating surface of the CNC lathe or the processing curve cylinder of the CNC milling machine.

2. Two-axis semi-linkage. During the machining of the part, two of the axes can be linked and the other can be periodically replenished. It cannot be linked all the time, so it is called two-axis semi-linkage.

Nowadays, two-axis linkage and two-axis semi-linkage have gradually withdrawn from the field of vision of CNC machining services, replaced by the following three common machining axis linkages.

3. Three-axis machining is generally divided into two types. One is that the three-axis machine tool uses a fixed tool to perform simultaneous cutting along three coordinate axes: X (from left to right), Y (from front to back), and Z (from top to bottom), such as the milling machine CNC. The other is to control the two linear coordinates of X/Y/Z at the same time, and also control the rotation coordinate axis that rotates around one of the linear coordinate axes. For example, a turning machining center, in addition to the vertical (Z-axis) and horizontal (X-axis) two linear coordinate axes, also needs to control the spindle (C-axis) rotating around the Z-axis at the same time.


4. Multi-axis linkage processing: When the CNC machine tool simultaneously controls the X/Y/Z three linear coordinate axes and a certain rotation axis linkage or simultaneously controls the X/Y/Z three linear coordinate axes linkage (four-axis machining) ability. It can also simultaneously control two of the A, B, and C coordinate axes to rotate around these linear coordinate axes, forming simultaneous control of the five-axis linkage. At this time, the tool can be positioned in any direction in space (five-axis machining), which is called a multi-axis CNC machine tool.

Multi-axis CNC machining can also be understood as 3+2-axis indexing CNC machining, which refers to the movement process in which 5 linkage axes move along 3 linear axes, and the machine bed and cutter head can also rotate at the same time.

3-Axis CNC Machines VS Multi-Axis CNC Machines

3 axis:
1. Easier to program
2. Manual repositioning of machined parts is required
3. Hindered by part geometry
4. Increase CNC machining operations, which may reduce the accuracy of the process

1. Complicated programming
2. No need for human intervention
3. Reduce manual steps
4. Save processing time
5. Not hindered by part geometry
6. Added cost of specialized machinery and more specialized programmers and operators.

Advantages of CNC Machining

Short production cycle
CNC automation saves a lot of time and operating costs. It is more prominent in rapid prototyping, the start-up cost is relatively low, and it can frequently create CNC parts for you.

Tight tolerances
The parts processed by CNC have strict high precision, which is more accurate than the prototype manufactured by mold processing, which means that the data you can get when using parts for functional testing is more accurate. And precision CNC machining services can even control tolerances below 0.0002 inches. Compared with manual processing, the accuracy and precision are higher, which can produce high-quality products.

Wide range of materials
CNC-machined parts have excellent physical properties. In daily life, almost all common high-hardness materials can be CNC machined. You can choose the material you want for testing.

Production on demand
CNC machining parts can provide on-demand production services, reducing the impact of parts inventory backlog and slow sales due to overproduction of parts.

Excellent repeatability
CNC machining has excellent repeatability, which is very suitable for small batch and large batch production requirements, and improves the batch production efficiency of various industries.

Complex parts production
CNC machining can process hard metal and alloy materials that are difficult to process by manual methods, as well as complex 3D shapes.

How to Choose The Right CNC Machining Service?

If you have read the above content, you will find that when choosing a part manufacturing process, you should first evaluate which type of processing is more suitable for this part, whether it is three-axis processing or five-axis processing. In general, 3-axis machines are more suitable for manufacturing parts with simple designs and fast and economical machining, while 5-axis machines are suitable for parts with higher precision and more complex geometries. The time cost in the middle will be relatively large. If you choose CNC machining services, professional engineers will give you advice and help you make the right choice quickly.

Generally speaking, 3-axis machining has a shorter setup time and simple programming and is the best choice if you are on a budget or just need to cut the material to obtain a flat surface. If you need the ability to manufacture parts faster, with higher precision, and with more complex geometries, then five-axis machining is the solution.

CNC Machining Material

The processing of CNC high-quality parts is inseparable from the selection of materials. On our platform, we mainly divide them into two categories: metal and plastic. The following is the detailed information.



Aluminum is one of the most commonly used metals worldwide due to its excellent corrosion resistance, strength-to-weight ratio, high thermal and electrical conductivity, strong diamagnetic properties, low-temperature resistance, and ease of recycling. Untreated aluminum will have a dull silver/gray finish due to the different contact areas of the surface texture with the air. Surface preparation can be done by sandblasting, grinding, or polishing.

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Many of the aluminum consumer products we see every day are anodized. Available in a variety of color options, this treatment enhances the silky, consistent, aesthetically pleasing finish of your parts. Ruitai provides you with a variety of aluminum alloy materials.

6061 aluminum alloy, which is a high-quality aluminum alloy product produced by heat treatment and pre-stretching process, has good machinability, good corrosion resistance, strong formability, high toughness, and good oxidation effect.

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7075 aluminum alloy, which is a cold-treated forging alloy with higher strength than mild steel, good mechanical properties, anodic reaction, and corrosion resistance make it more suitable for thread rolling, enhanced tool wear resistance, and deep drilling performance different. It is a frequent visitor to the processing structure of high-stress structures such as mold processing, mechanical equipment, and aerospace, and is very popular. It is often seen in high-end aluminum alloy bicycle frames.


2024 aluminum alloy, a high-strength aluminum alloy, is mainly used to make various high-load parts or components and can be strengthened by heat treatment.


5052 aluminum alloy has a wide range of applications and is one of the most promising aluminum alloys. It has the highest adhesion to the construction industry and has good formability, corrosion resistance, and weldability. This alloy is the most widely used rust-resistant aluminum that cannot be heat-treated to strengthen it. The main purpose is low-load parts, such as fuel tanks and various liquid containers.

6063 aluminum alloy is a high-quality material for the production of building door frames and curtain wall frames. It has high wind pressure resistance, assembly performance, corrosion resistance, and decorative performance.


6082 aluminum alloy, mainly used in transportation and structural engineering industries. It is an aluminum alloy plate that can be heat treated and strengthened, with medium strength and good corrosion resistance and welding performance. The casting temperature is higher than that of 6063 aluminum alloy.



Steel is one of the most used materials in the world. It has low price and reliable performance. It is an indispensable component of manufacturing, construction and people. It is the material basis of modern society. In Ruitai, we prepare the following types for you steel material.

Alloy steel, there are many types of alloy steel, which we divide into eight categories: alloy structural steel, alloy tool steel, high-speed tool steel, stainless steel, heat-resistant non-skinning steel, silicon steel for electrical purposes, spring steel, and bearing steel.

Alloy structural steel: high strength, often used in the manufacture of high-temperature nut materials, etc.

Alloy tool steel: Also known as measuring tool steel, it has good stability, good machinability, high hardness, and wear resistance, and is often used in the manufacture of measuring tools (gages, fixtures, etc.)

Spring steel: It has high strength and fatigue resistance, and is the main steel for spring materials.

Bearing steel: high-carbon alloy steel with uniform hardness and wear resistance, which is the best choice for drive shafts and axles.

Heat-resistant steel: good heat resistance, can be used for corrosion-resistant and heat-resistant materials

Stainless steel: the abbreviation of stainless acid-resistant steel, its hardness is higher than that of aluminum alloy, and it has the characteristics of corrosion resistance, good machinability, and low cost of materials. We mainly provide 300 series (303, 304, 316, etc.) for you to choose from, and it is used most in automatic lathes and nuts.

Carbon steel: high strength, non-synthetic steel for important parts in the manufacturing industry, can only be used after heat treatment, and is one of the most commonly used steel materials for automobiles and instrument casings and wheels.

Zinc alloy
Zinc alloy is a material with low melting points, good fluidity, easy welding, and plastic processing. Because of its good fluidity and corrosion resistance, it is often seen in casting processing. It can process complex die-casting shapes, Thin-walled precision parts, after surface treatment, the surface of the casting will be very smooth.

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Titanium alloy
Titanium alloy is a metal material that is easy to process and has high mechanical strength, low density, and good heat resistance. It exceeds high-quality steel in the ratio of tensile strength to density. It can be used as aircraft parts, oil pumps, valves, artificial skulls, etc.

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Copper is a soft metal and one of the first metals used by humans. Due to its excellent ductility, it can be recycled many times without compromising its mechanical properties and has become one of the most commonly used raw materials in the CNC machining industry. At Rite-Hite, we prepare bronze and brass for you as raw materials for CNC machining.


Bronze was the earliest alloy used in metal casting and smelting. Because of its good wear resistance, stable chemical properties, low melting point, high hardness, and strong plasticity, it is often used in the manufacture of mechanical parts, appliances, gears, and bearings.

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An alloy made of copper and zinc is called brass. In addition to copper and zinc, copper alloys with other metals are called special brass. Brass is highly wear-resistant. In our platform, the most popular copper we use is C260 copper (environmentally friendly brass), which has the advantages of good corrosion resistance, high strength, and good cutting plasticity, and is often used in the manufacture of mechanical and electronic components. It is a high-precision component material that is very suitable for machining on CNC lathes.



The CNC machining technology can be compatible with many synthetic or naturally formed high molecular polymers. Most plastic materials are light, will not rust, are chemically stable, have good impact resistance, and are cheap. They are widely used in daily life. Ruitai is for you The following plastic CNC machining materials are provided.

Polyethylene (PE): This is a thermoplastic resin formed by polymerization of ethylene. It has low water absorption, non-toxic, odorless, wax-like feel, and excellent low-temperature resistance and corrosion resistance. It is mainly used to manufacture high-frequency insulating parts such as pipes, containers, and TV casings.

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Polypropylene (PP): This is a thermoplastic resin synthetic resin with excellent performance. It has a transparent appearance and a relatively light material. It has good electrical insulation, heat resistance, chemical resistance, high-strength mechanical properties, and good high wear resistance. Processing performance, etc., is an ideal material for the production of medical device parts, auto parts, bicycle parts, and other parts.

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High-density polyethylene (HDPE): It has good mechanical properties, thermal properties, and electrical properties. It has a wide range of applications and is often seen in the processing of pipe parts.

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Low-density polyethylene (LDPE): It has good flexibility and impact resistance. It is mainly used in packaging, etc., and it is not ideal for high-temperature-resistant scenarios.


Linear low-density polyethylene (LLDPE): non-toxic, tasteless, odorless milky white particles, with superior tensile strength, low-temperature resistance, heat resistance, and puncture resistance, a wide range of applications, such as plastic films, pipes, etc.

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Polyvinyl chloride (PVC): Once the world’s largest general-purpose plastic, it is light yellow and translucent, with the advantages of flame retardancy, high mechanical strength, and good electrical insulation. It can be used to make door and window parts, pipe parts, wire sleeves, etc.

General-purpose polystyrene (GPPS): This is a thermoplastic non-crystalline resin, odorless, tasteless, colorless, and shiny, transparent bead or granular solid. Due to its relatively good fluidity, it is generally used in CNC machining processes, especially suitable for injection molding. It can be used to make various instrument shells, instrument parts, transparent windows, lampshades, optical parts, transparent models, telecommunication parts, brackets, inserts, frozen insulation materials, etc.

Highly Resistant Polystyrene (HIPS): A pure, bright amorphous plastic used in the CNC machining industry to make consumer appliance housings, toys, construction, and decorative items.

Acrylonitrile-butadiene-styrene copolymer (ABS): This is a widely used engineering plastic with outstanding mechanical and thermal properties. It is widely used in various home appliance parts, such as air conditioners, refrigerators, washing machines, etc, and the dosage is very extensive.

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Polymethacrylate (PMMA): Also known as acrylic or plexiglass, it is a high molecular polymer with the advantages of low price, high transparency, and easy processing. A material commonly used to replace glass. It can be used to make automotive lamp parts, instrument parts, lighting lamp shades, etc., which can be mass-produced.

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Polyethylene terephthalate (PET): commonly known as polyester resin, is a common resin in life, odorless, non-toxic, wear-resistant, in CNC machining can manufacture mechanical industrial gears, instrument mechanical parts, watch parts And various electrical enclosures, and so on.

Polybutylene terephthalate (PBT): This is a semi-crystalline thermoplastic polyester with strong high resistance and is often used to make automotive parts, precision instrument components, etc.

Polyamide (PA): Commonly known as nylon, it is the first synthetic fiber in the world. It has high wear resistance. It is a good material to replace steel, iron, and copper. It is often used to make wear-resistant parts and screw rods to prevent mechanical Parts, household appliance parts, transmission structural parts, automobile manufacturing parts, chemical machinery parts, etc. (such as gears, turbines, dashboards, bearings, impellers, etc.).

Polycarbonate (PC): This is a thermoplastic resin with high toughness, good optics, and almost colorless amorphous polymer, widely used, such as door and window glass, aircraft canopies, automobile dashboards, etc. Models processed from this material can be seen in building materials, automobile manufacturing, medical equipment, aerospace, and electronics industries.

Polyoxymethylene resin (POM): Commonly known as Delrin, it has a wide range of applications and is more common in auto parts. It is a material with high stiffness and low friction.

Polyphenylene ether (PPO): high-strength engineering plastic, white particles, good overall performance, non-toxic, transparent, relatively small relative density, excellent water resistance, mechanical strength, stress relaxation resistance, dimensional stability, etc., application fields Electronic appliances, automobile industry, machinery industry, such as copier casings, computer casings, bearings, gears, etc.

Polyphenylene sulfide (PPS): A new type of high-performance thermoplastic resin, which is widely used in the fields of automobiles, machinery, and chemical electronics. It has the advantages of high-temperature resistance, high mechanical strength, good thermal stability, and excellent electrical properties. It is one of the most commonly used materials in the manufacture of electronic parts such as auto parts, computer parts, and TV casings.

Polyurethane (PU): It has better stability and chemical resistance than PVC materials. It is a kind of polymer compound, it is a wood-like material in the furniture industry, and it is also a high-quality material for making heat-insulating parts, such as shell parts of home appliances.

Polystyrene (PS): A colorless and transparent thermoplastic with the advantages of easy processing, insulation, transparency, and low cost. In numerical control processing technology, it can be used to make various optical and chemical instrument parts, lampshades, instrument shells, and capacitor dielectric layers.

Polytetrafluoroethylene (PTFE): Commonly known as the king of plastics, it has the advantages of high-temperature resistance, corrosion resistance, aging resistance, electrical insulation, etc. It has a wide range of applications and can manufacture various high-insulation electrical components.

CNC Surface Treatment and Finishing

Generally speaking, the parts processed by the CNC center are relatively original, and the machined parts without any surface treatment will have some lack of aesthetics. Therefore, some finishing processes are required to improve the appearance of parts, reduce the effect of parts defects, improve the precision and wear resistance of parts, etc.

Anodized (Aluminum) (Type II or Type III)
Anodizing aluminum is a process of electrolytic oxidation. Through the action of the external current, an oxide film is formed on the surface of aluminum products. In this process, aluminum or aluminum alloy is generally used as the anode, and zinc as the cathode. Anodizing is an important part of aluminum alloy surface treatment. Oxidized parts can prolong the service life and expand the scope of use. It has a good protective and decorative effect.


Polishing refers to the process of using polishing tools to trim parts and reduce the roughness of machined parts to obtain smoother and flatter CNC machined parts. This process will not improve the precision of the part, but it will beautify the surface of the part.


Black oxidation
Black Oxide is a conversion coating that improves the appearance of metals. It is often used on steel, stainless steel, copper, and other metal parts that are easily exposed to air and cause rust. The process of dealing with this process is also called blackening treatment. The metal parts treated by this process have strong anti-rust ability and improve the aesthetics of the processed parts. This process is often used in CNC machining.


Sandblasting is a process for machining parts. It uses a high-speed jet beam to spray the material onto the surface of the part to be processed, so as to achieve the purpose of rust removal, beautification, improvement of precision, and deburring. This is a fast and efficient process. Efficient surface preparation and clean machining methods.


Electroless Nickel
Using the oxidation-reduction reaction in chemistry, the nickel element in the solution is attached to the surface of the processed metal parts. The process does not require electricity like electroplating. Electroless nickel-plated metal processing parts have good corrosion resistance, rust resistance, etc. Suitable for nickel plating on all metal surfaces.


Through the principle of oxidation, the chemical process that makes the active metal surface into a state that is not easily oxidized reduces its surface activity and slows down the corrosion rate of the metal is called passivation. The formed passivation film is relatively complete, which can provide a protective oxidation environment for the processed metal parts and improve the corrosion resistance of the processed parts.


Powder coating
Powder coating, also known as the powder coating process, is a high-quality process to improve the corrosion resistance of machined parts. The process can use air as a transport medium and is a solvent-free process. Low energy consumption, 100% film formation of processed parts. The parts processed by this process are more beautiful.


Custom made
There are many types of CNC machining processes. In addition to the above surface treatment, special part processing can make your part surface more beautiful. Whether it is simple or complex, special patterns will always have unexpected effects. With its own brand logo, customized and improved processed parts will be more prominent in terms of anti-corrosion, durability, and beauty.

Application of CNC Machining and Industry Cases

CNC (Computer Numerical Control) machining is one of the most important manufacturing technologies revolutionizing the industry. It allows high-precision and automated machining of metals and other materials using computer control. Compared with manual machining processes, CNC machining can realize precision parts processing with faster production speed, higher precision, and greater flexibility.

Automotive Industry – CNC machining is widely used in the automotive industry for machining engine blocks, cylinders, transmissions, wheels, and many other components. The complex curves and shapes required for automotive parts can be efficiently produced using CNC. It provides high precision and consistency for mass production in the automotive industry.

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Aerospace Industry – The aerospace industry relies heavily on CNC machining for components in aircraft, rockets, satellites, and other systems. Turbine blades, landing gear parts, fuel nozzles, spars, and more involve complex 3D shapes that can be machined using CNC to tolerances of up to 0.001mm. The high-quality requirements and precision required in the aerospace sector can be achieved with CNC machining.

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Medical industry – CNC machining is used to manufacture various medical devices and medical implants such as surgical tools, prosthetics, orthopedic implants, dental implants, etc. Biosafe metals and plastics used in these medical applications are CNC machined to high precision.

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Mold Industry – CNC machining is essential for the rapid production of high-precision molds for industries such as plastic injection molding, die casting, forging, and stamping. Injection molds, extrusion molds, and several other tools require CNC machining because they can create complex cooling channels and precision mold cavities.

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Heavy Equipment Industries – Earthmoving, construction, agricultural and lifting equipment depend on strong load-bearing components that are CNC machined to tight dimensional tolerances. Gears, cams, bearings, shafts, and connecting rods are some of the common components machined with CNC in the heavy equipment industry.

Oil and Gas Industry – The oil and gas industry requires very strong and durable components in drilling equipment, valves, pumps, compressors, and other systems that can withstand abrasive and high-pressure environments. CNC turning and milling provide reliability and durability to critical metal components used in the oil and gas industry.

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CNC Machining Emerging Applications and Future Trends

Emerging applications:
Electronics – CNC machining is increasingly used to manufacture semiconductors and electronic components such as PCBs, connectors, housings, and more. The precision required for electronics can be easily achieved through CNC machining.

Renewable Energy – Many components required for solar, wind, and tidal energy systems require CNC machining, such as turbine blades, gearbox housings, solar panel frames, and more. Renewable energy systems often require strong and weather-resistant machined parts.

Robotics – Metal connection and mounting components, linkages, chassis, and other parts required for robotics and automation systems involve complex machining, realized by CNC. Robotic manufacturing is expected to increasingly employ CNC machining.

Railroad Infrastructure – High-speed trains, subway systems, freight cars, railroad equipment, and more require CNC machining of metal parts with reliability and tight tolerances. CNC machined parts help meet the safety and performance needs of rail infrastructure.

Electric Vehicles – Electric vehicles require very high-precision machined components, especially electric motors and power transmission systems. CNC machining is critical to electric vehicle-related manufacturing.

Future development:

Complex 5-axis CNC machining will become the standard due to its increased flexibility, single setup capability, and improved surface finish.

Multitasking CNC machines that combine milling, turning, grinding, and other functions will provide cost and time advantages.


CNC machining services provide tremendous value to major manufacturing industries across the globe, with increasing demand for high-precision parts in the aerospace, automotive, healthcare, and electronics industries driving the demand for CNC machining. Manufacturing processes continue to evolve and innovate, and CNC machining holds great potential for both existing and emerging applications in old and new industries.

If you need the following CNC machining projects, please contact us, and we will give you the most professional quotation in the shortest time.

Ruitai CNC Video Process Display

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