Bulk CNC machining prototype is one of the machining professions using high technology. Let’s find out the principle and operation method of this type of CNC machining with us.

But do you know the classification, how it works as well as the implementation processes of this method? If not, let’s find out with Viet Son below this article.

What is CNC Machining? Classification and how it works

CNC mechanical machining stands for computer numerical control, which is a combination of computer technology and physical tools. Specifically, engineers will encode drawings into a programming language. The computer system then reads the coded lines and controls the physical tool to create products that match the drawings.

When a Bulk CNC machining prototype activates, the desired cuts and shapes pre-program in the software and assign to the respective tools and machines. It performs the specified tasks as a robot.

In CNC machining, the programming code is the perfect mechanism to perform tasks that humans cannot do, although sometimes it also occurs some errors that are difficult to control, but compared to the disadvantage, the advantage that this processing method brings is still an advantage for it to be used.

With mechanical processing machines operated by numerical control, coding programs enter manually through punch cards. In contrast, with touch control, all programs attach to the computer through the keyboard and some other specialized tools. Moreover, the CNC system can flexibly upgrade through modified program codes.

Classification of Bulk CNC machining prototype

The machining process of mechanical parts requires high complexity. Sometimes a product has to go through many stages with different implementations. So, CNC machining is also classified into 6 basic types. as follows:

CNC milling: is the process of using machines in a circular motion to remove excess materials from the workpiece. In the process, it has to rely on the support of mills, chamfers and spiral mills. Occasionally, milling also includes hand milling machines, conventional milling machines, universal milling machines and general-purpose milling machines.

These machines have a horizontal or vertical orientation depending on how it is made.

CNC milling is the process of circular motion around the workpiece

CNC turning: is a form of rotating the workpiece on the axis with the stages going through including: cutting, grinding, firing … with supporting tools are turret lathes and engine lathes. In some difficult operations, this Bulk CNC machining prototype also uses straight turning, taper turning, outer groove and threading.

CNC Drilling: Drilling is a mechanical part machining process that uses rotating multi-point drill bits to create cylindrical holes in raw materials/workpieces. The design of the drill bits allows the remnants to fall out and keeps the drill holes neat.

Common types of drill bits used in the CNC machining process include spot drills (to create shallow or pilot holes), burrs, screw drills (to make holes without pilot holes), and punching machine.

Bulk CNC machining prototype discharge machining

The setup is made up of a tool electrode and a workpiece electrode separated by a dielectric liquid and subjected to a voltage. This process is also known as spark machining, spark etching, combustion, drowning or wire erosion.

CNC Plasma Machining: is a method of using electric arc heating gas. It controlled by a computer to create a plasma beam to help heat and cut metal quickly. This technique can perform well with materials such as: aluminum, copper, iron … It also uses in industries such as manufacturing, welding, auto repair and restoration units, construction works.

CNC Laser Machining: is the process of melting, evaporating and gradually removing materials from the workpiece with a laser beam. The laser beam control system consists of: optics, assist gas and laser directional data focused on the workpiece.

The benefits of this Bulk CNC machining prototype increase machining speed, avoidance of resource waste. It can perform on a wide range of material sizes.

In addition to these common machining methods, CNC machining also has other forms of processing with explosives, sparks, sound waves, etc. Depending on the purpose, the worker will choose the appropriate method.

What professions are suitable for CNC technology?

Machining of mechanical parts is gradually taking over and gaining a firm foothold in the manufacturing field. Thanks to processes that optimize time, effort and benefits. Therefore, it also applies in industries that require high quality such as:

Medical industry: The growing development of medicine means that new assistive devices also arise more and more. It not only requires high quality but also requires quantity. Bulk CNC machining prototype contributes to the creation of machines such as orthopedic devices, safety covers, implants, MRI machines, research equipment… quickly and with optimal error reduction.

Machining mechanical parts applied in the medical industry

Automotive industry: mechanical detailing in the automotive industry is primarily responsible for the development of prototypes (prototypes before mass production) and rigorous specifications.

In addition, mechanical processing also applies to manufacture means of transport such as ships, trucks, etc.

• Aerospace industry:responsible for the production of landing gates, airfoils, manifolds. These are extremely important parts that need an accuracy of 99.99%. Because just a small mistake can make lead to serious damage, including loss of life.
• Military and defense industry:participating in real combat aircraft parts, pharmaceuticals, communication vehicles, transportation parts.

Process of performing Bulk CNC machining prototype

CNC machining is the process of managing rotations around multi-point cutting tools. As the tools rotate and move across the workpiece surface. They slowly remove excess material to achieve the desired finished product. But for this process to go smoothly, it has to go through the following 4 separate stages:

• Design CAD models:engineers sketch images and detailed machining points on specialized 2D and 3D drawings.
• Convert CAD model to CNC program:the design is in a compatible file format. It extracted and converted into CNC machine control coding and geometry via CAM software.
• Setting up the CNC machine:these setup steps include feeding the workpiece directly to the spindle. Bulk CNC machining prototype surface or similar machining equipment. It attaches the necessary tools such as drills and milling cutters to the assemblies and other compatible parts.
• Performing machining operations:the machine operator starts the machining program according to the pre-programmed codes in stage 2.