Top 5 most popular CNC machines in Vietnam today

In recent years, CNC machines have become increasingly popular and applied in most manufacturing fields. Along with the development of technology, CNC machines have achieved great progress. There is no denying the great benefits that CNC machines bring: automation capabilities, high accuracy, cost savings, increased labor productivity....In the article below, let's join VISC learn deeply about CNC machines and the top 5 most popular CNC machines in Vietnam today.

1.What is CNC machining?

Computer numerical control (CNC) is a technology that uses computers to control machinery during the manufacturing process. It outlines a high-tech approach to automating and precisely controlling the movement of tools and machinery in industries such as metalworking, woodworking and even 3D printing.

CNC machine is a machine controlled by a computer to process products (repeat).

In traditional manufacturing, skilled operators manually guide tools to create parts or products. CNC goes even further by using computer programming to guide these tools with exceptional precision. CNC machines operate based on a set of instructions, like a recipe. These instructions are written in a language called G-code, which tells the machine how to move the tools, how fast to operate, and where to make cuts.

As for using a CNC machine: the user enters the desired design into the computer, the CNC machine will read the design and follow instructions to carve the desired shape from a block of material. It's like having a super-precise robot that can automatically create intricate and intricate shapes without human intervention.

CNC systems operate in a closed loop, meaning they continuously monitor and adjust machining processes. This ensures accuracy by correcting any discrepancies in real time. The integration of closed-loop technology allows CNC machines to achieve outstanding precision, measured in micrometers.

CNC technology increases efficiency by eliminating the need for constant human intervention and reducing human error. It is precise, often achieving measurement tolerances in thousandths of a millimeter. This level of precision is important for industries that require high-quality components, such as aerospace and medical devices.

CNC also opens up opportunities for rapid prototyping and customization. You can easily modify the instructions to create different designs without changing the physical machine setup, allowing for rapid testing and adjustments.

2. Top 5 most popular CNC machines in Vietnam today

2.1. CNC milling machine

a. Define

A CNC milling machine is a manufacturing machine that uses a cutting tool mounted on a rotating shaft to selectively remove material from a rough base block. The workpiece is securely attached to a table, and the table moves or rotates in different planes so the tool can work at many angles. Sophisticated CNC milling machines can have five or more independently moving axes to create more complex shapes or avoid having to move the workpiece to a separate machine.

b. Classify

• Vertical CNC milling machine: With the main axis located perpendicular to the machine table, it is the most used type of CNC milling machine.
• Horizontal CNC milling machine: Has a main axis parallel to the machine table. Often used to process gearboxes, engine blocks, engine boxes or design and process molds.
• Bed CNC milling machine: The machine is equipped with many perpendicular cutter heads so it can process many parts at the same time. This is a large CNC machine used to process parts with large weight and size

c. Application

CNC milling machines are widely used in many fields with outstanding benefits, specifically some work applications are as follows:

• Manufacture of components

CNC milling machines can create very complex three-dimensional products based on 3D design drawings and CNC programs built through CAM software. CNC milling machines produce high-precision parts, thus saving costs and R&D time, while improving production efficiency.

• Engraving and decoration

CNC milling machine can be used for carving and decoration, such as wood, stone, plastic, etc. Due to its ability to precisely control the tool's curve trajectory, it can achieve complex carvings. complex like high relief effect, making it more beautiful.

• Mold manufacturing

CNC machining process is the best choice for making molds because molds require high precision, repeatability and mass production are the strengths of CNC technology. Using CNC machining to make molds can achieve production efficiency and larger production quantities.

• Complete the product

In mechanical machining, finishing the part often requires manual processing, such as using files and sandpaper, which can lead to irregular and irregular surfaces with complex geometric shapes. CNC machining can accomplish these tasks while ensuring smooth surfaces, high precision, and high efficiency.

• Automated production process

CNC milling machines can also be used in computer integrated manufacturing (CIM) or computer-aided manufacturing (CAM) lines. This makes the mechanical production process fully automated, thereby reducing production costs, improving production efficiency and quality, and enhancing the reliability and consistency of the kit production process. department.

2.2. CNC lathe machine

a. Define

CNC lathe machine is a machine tool in which the material (mainly wood, metal) or workpiece is clamped and rotated by the spindle, while the cutting tool mounted and moving in different axis performs the function of turning, surface cutting. CNC lathe machine can cut, shape, and surface treat diverse materials with incredible precision through computer programming and control (CNC) programs.

b. Classify

• 2 axis CNC lathe

In this basic setup, 2 linear axes can be used to perform OD and ID machining (i.e. cylindrical machining). and surface machining, or drilling and tapping in the center of the part. However, it does not allow milling functionality.

• 3 axis CNC lathe

In addition to the basic X and Z axis, the C axis and life tool system are also added. This allows the part to be positioned to perform standard milling, boring and tapping operations. Helical milling operations that involve slow synchronous rotation of the part can be performed.

• 4 axis CNC lathe

Here, the Y axis is added to the machine so that eccentric machining operations can be performed. This will work well for more unusual and complex operations.

• 5 axis CNC lathe

In such machines, a second tool station is added to the 3-axis CNC lathe. Such machines will then have 2 axes in each cutter station (upper and lower cutter carriage) plus a C-axis on the spindle. This allows the use of 2 sets of cutting tools at the same time on one part, thereby significantly reducing cycle times.

• CNC lathe with 6 axes or more

Here, permutations of such lathes can include:

2 x C-Axis (main axis and second axis)

2 x Turrets (upper and lower turret, each with 2 linear axes)

1 x Y axis in upper turret

1 x Second spindle can move towards the main spindle to pick up parts

In addition, there are machines with more than 8 axes. However, these are very sophisticated and complex machines, often not necessary for normal production needs.

c. Application

• Complex turning: Can handle more complex designs than a 2-axis lathe.
• Offset Drilling and Milling: Off-center operations can be performed along the spindle.
• Advanced Forming: Suitable for parts with non-cylindrical configurations.
• Multi-process machining: Combine turning with milling and drilling in a single setup.
• Complex geometry: Ideal for parts with irregular shapes and features.
• Precision components: Provide greater precision for mission-critical applications in industries such as aerospace and medical.
• Custom Manufacturing: Perfect for bespoke or limited edition products where complexity and precision are paramount.

2.3. CNC grinding machine

a. Define

CNC grinding machines use an electrically driven grinding wheel to meticulously separate material from the workpiece surface, thereby facilitating the production of precision parts. Controlled and monitored by a computer, this process, aided by advanced grinding wheels, delivers unprecedented precision, repeatability and versatility, surpassing conventional grinding methods.

b. Classify

Depending on the geometric requirements of the grinding product, there are several types of specialized CNC grinding machines for different grinding techniques or grinding different parts on the product, including:

• Flat grinder

This process uses a rotating grinding wheel consisting of abrasive particles to meticulously refine the flat surface of metallic or non-metallic materials.

• Cylindrical grinder:

This process uses a Cylindrical Grinder, equipped with a specialized grinding wheel, as the cutting tool to precisely remove the surface layer from the cylindrical workpiece. When the workpiece rotates around a fixed axis, the machined surfaces remain concentric with this axis

• Mindless grinding:

This process uses a dual wheel mechanism – a larger grinding wheel and a smaller adjusting wheel. The workpiece is placed on a stationary blade and held between two wheels, with the larger wheel performing cutting duties.

• Internal cylindrical grinder:

This process uses a small wheel mounted on a thin rotating shaft, which is inserted into the workpiece. The wheel rotates at high speed, stripping away material and creating a smooth interior surface.

• Profile grinding machine

The process involves the grinding wheel carving a full-depth contour into the workpiece in one slow pass. This precision grinding method is often used when the workpiece requires complex precision features.

• Hole grinder:

During this process, a grinding wheel is precisely positioned with the help of a machine jig to make fine cuts, create holes and precise shapes.

• Gear grinding machine

Gear grinding machines are used to finish gears after heat treatment

c. Application

CNC grinding machine plays an important role in industries, specific applications of CNC grinding machines include:

• Automotive Industry: Grinding is commonly used in the automotive industry for a variety of applications such as grinding crankshafts, camshafts, and other engine parts. It is also used for finishing and polishing the surface of car body panels.
• Aerospace industry: Grinding is an essential process in the aerospace industry for the production of precision parts such as turbine blades, fuel nozzles and landing gear components. This industry requires parts with high dimensional accuracy and surface finish, which can be achieved through grinding.
• Medical industry: Grinding is also used in the medical industry to produce precision parts such as surgical instruments, dental instruments and orthopedic implants. These parts require high precision and surface finish, which can be achieved through grinding.
• Tool and die industry: The tool and die industry widely uses grinding processes to grind and shape cutting tools, punches and dies. This process is essential for producing high-precision parts that require tight tolerances and surface finishes.
• Construction Industry: Grinding is also used in the construction industry to finish concrete surfaces and remove excess materials such as paint, adhesives and coatings.

2.4. CNC drilling machine

a. Define

CNC drilling machine is a precision CNC machining method using computer numerical control (CNC) in which drill bits are used to drill holes into the material.

Unlike manual drilling, CNC drilling machines harnesses the power of computers to control drill movements, ensuring precision and consistency that manual operations cannot match. This method is beneficial for industries that require high precision, such as aerospace, automotive, and electronics, where even a small deviation can lead to serious problems.

b. Classify

• Vertical CNC drilling machine

These machines feature vertical configurations, powerful motors, and a variety of spindle speeds, allowing them to drill through materials of varying hardness and thickness effectively.

• Radial CNC drilling machine

The radial arm CNC drill has a unique design that allows the spindle to move along the radial arm, providing greater flexibility and reach than traditional vertical drills.

• Group drill

The group drill has a series of drill spindles mounted on a single table, allowing multiple drilling operations to be performed simultaneously on a single workpiece.

• CNC horizontal drilling machine

The desktop CNC drilling machine is a compact, flexible machine designed to precisely drill small and medium sized workpieces ensuring high accuracy and repeatability.

• Multi-spindle drilling machine

Multi-spindle drills are designed to increase productivity by allowing multiple holes to be drilled at the same time.

• Tower type CNC drilling machine

Tower-style CNC drilling machines have a rotating turret that holds multiple tools, allowing for quick tool changes and a variety of drilling operations without manual intervention.

• CNC deep hole drilling machine

CNC deep hole drilling machines are specialized for creating deep, precise holes with high straightness and accuracy.

• Handheld CNC drilling machine

Handheld CNC drilling machines offer the flexibility to perform precision drilling operations on large or difficult-to-move workpieces.

c. Application

CNC drilling plays a pivotal role in modern manufacturing, delivering precision and efficiency that manual processes cannot match. Its applications span a variety of industries, each with its own requirements and challenges. Let's explore how CNC drilling can be applied in key areas.

• Aerospace industry

CNC drilling is used to create precise holes in aircraft parts. These holes are important for fastening components together, routing cables, and managing airflow. Materials such as aluminum, titanium and composites are commonly drilled, requiring extreme precision to meet stringent safety and performance standards.

• Automotive industry

CNC drilling is an indispensable part of the automotive industry for the production of engine parts, chassis and other vehicle components. It ensures the creation of precise holes for bolts, screws and other fasteners, contributing to the assembly of reliable and durable vehicles.

• Manufacturing and Machinery

This vast sector relies on CNC drilling to produce machine parts, tools and equipment. CNC drilling ensures parts fit together perfectly, maintaining the integrity and functionality of the final product. It is used to create parts for everything from industrial machines to household appliances.

• Electronics and semiconductor industry

CNC drilling is used to create precise holes in circuit boards and electronic housings, needed to mount components, enhance cooling, and ensure electrical connections. The ability to drill small, precise holes is especially valuable in miniaturized electronics.

• Health

In medical manufacturing, CNC drilling is used to produce surgical instruments, implants, and devices. The high precision and cleanliness required for medical devices make CNC drilling indispensable for creating complex parts with tight tolerances.

• Construction and Architecture

CNC drilling supports the construction and architecture sectors by creating components for buildings , bridges and projects .​​​​​​​​​ a nc o s in h ha t ng . It allows precise drilling of structural components , ensuring durability and​​​​​​​​​​​​​​​​​ degree stability in projects​​​​ a nx a yd ng .

• Energy industry

The energy industry, including oil and gas, wind power and nuclear power, uses CNC drilling machines to produce parts such as turbines, pipes and structural frames. Precision drilling is critical for the safety and efficiency of energy production and distribution systems.

• Furniture production

CNC drilling is widely used in furniture manufacturing to create holes for screws, dowels and hardware. It enables the production of complex, high-quality furniture with consistent results.

• Musical instrument

In musical instrument manufacturing, CNC drilling is used to create precision parts, such as flute holes or tuning pegs for stringed instruments, that ensure the sonic characteristics of the instrument are maintained.

• Research and development

CNC drilling supports R&D efforts by allowing the creation of prototypes and test parts. Its precision and versatility facilitate the testing of new designs and materials, driving innovation across industries.

2.5. CNC laser cutting machine

Numerically controlled (CNC) CNC laser cutting machines operate on the principle of using a focused high-power laser beam to cut, engrave or engrave on a metal surface to obtain the desired shape.

They are used especially for cutting complex shapes and small holes with high precision. This is possible thanks to the unique design and process of the Laser cutting machine

a. Classify

CNC laser cutting machines are often classified based on the state of the operating laser medium (solid, liquid or gas) and the composition of the operating laser medium (e.g. CO2, Nitrogen, etc.). Below are the three most commonly used laser types today:

• CNC CO2 laser cutting machine
• CNC crystal laser cutting machine
• CNC fiber laser cutting machine

b. Application

Computer Numerical Control (CNC) laser cutting is used in many industries due to its precision and ability to shape different materials. Here are some fields that frequently use this technology:

• Automotive industry:
  CNC laser cutting is important in automotive manufacturing, used to precisely shape sheet metal parts, cut auto body panels, and create small parts with complex designs .
• Aerospace industry:
  In the aerospace sector, precision is paramount. CNC laser cutters are used to produce precision parts with tight tolerances, taking full advantage of their ability to cut exotic metals and composites commonly used in the industry.
• Electronics industry:
  From engraving circuit boards to manufacturing smartphone components, CNC laser cutting machines are versatile tools in electronics manufacturing.
• Medical Device Manufacturing:
  CNC laser cutting machines facilitate the production of surgical instruments, medical devices and orthopedic implants, where detail and precision are unparalleled important.
• Jewelry industry:
  Creating complex designs with high precision, CNC laser cutting is widely used in jewelry making for cutting and engraving purposes.
• Construction field:
  Large-scale CNC laser cutting machines support cutting structural parts for buildings, bridges and other construction projects.

3. How to choose the right CNC machine?

To decide to invest in CNC machine that best suits your business,  let's learn with VISC about 10 important criterias to choose the most suitable CNC machine to make the smartest decision.

4.  Conclusion

CNC machines are optimal tools that play an extremely important role in modern manufacturing. Through the above article, VISC hopes to help readers grasp useful information about the top 5 most popular CNC machines in Vietnam today and make the appropriate choice.

If you want to learn about and visit CNC processing machines or CNC processing lines, please contact us - Vietnam Industrial Services and Solutions Joint Stock Company (VISC). With over 13 years of experience in consulting and providing solutions in the field of precision mechanical processing, we will provide the most accurate and appropriate advice for your needs .

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