CNC machining, or Computer Numerical Control machining, is a digital manufacturing technology famous for its precision, accuracy, and complex product design capabilities. CNC company do not require manual operation but use a microcomputer connected to the machine to control it. The microcomputer forwards the G and M codes containing the machining parameter instructions obtained from the CAD model to the CNC machining center (Learn more about CNC programming i.e. G and M code). It removes material from the workpiece through machining operations such as turning, drilling, and milling.
How does a CNC company work?
Create CAD design
CNC company creates a computer-aided design in 2D or 3D format by using CAD software. With this software, you can render any parts with the right technical specifications.
Convert CAD files to CNC programs
The next step is to convert the CAD file into a CNC-compatible file format. The CNC program will process the CAD file and generate the code required for the process. CNC company is familiar with two types of codes in CNC machining basics. They are G-code and M-code. G-code controls the actions of the machine. For example, it controls how to move, when to move, how fast to move, the path to move, etc. On the other hand, M-code controls factors surrounding the capabilities of the machine. Such as controlling the removal and replacement of machine covers.
Setting up CNC machine
There are two steps to set up a CNC machine. The first step is to inspect the CNC machine to determine its condition. The second thing is to secure the workpiece to the machine. CNC company can secure the workpiece directly into the machine while connecting the required tools and components.
Operation
After setting up the CNC machine, the CNC company can run the CNC program. The CNC program is the control center for all the actions of the CNC center. It commands the machine by dictating the movements and actions of the machine to achieve the correct results.
Different Types of CNC Machines in CNC Company
As we all know, machines used for CNC milling are called CNC milling machines, and those used for CNC turning are called CNC lathes. However, the types of CNC machines are more about the axes they can move and rotate.
2-axis CNC machines: They can only machine parts on the x-axis and z-axis (vertical and horizontal) and are the simplest CNC machines used in CNC manufacturing.
3-axis CNC machines: 3-axis CNC machines go a step further than 2-axis CNC machines. They can move on the x, y, and z-axis and are the most commonly used machines in CNC machining. However, the lack of slewing may limit the ability to machine parts with complex designs.
4-axis CNC machines: 4-axis CNC machines have a spindle that can move along three axes. The machine can move up and down, left and right, front and back, and rotate along the X-axis and A-axis. All of these happen without the workpiece moving. Due to their speed, precision, and accuracy, 4-axis machines are the most commonly used CNC machines when machining complex parts.
5-axis CNC machines: 5-axis CNC machines have a spindle and tool that can move like 4-axis machines. Unlike 4-axis machines, they can rotate along any two of the three axes. They are considered the most complete multi-axis CNC machines because they can approach the workpiece from all sides without the need for manual repositioning during the machining process. 5-axis CNC machining allows precise and complex parts to run flawlessly.
What are the CNC machining operations in CNC Company?
Common CNC machining operations are:
CNC drilling
CNC drilling uses a rotating cutting tool to create a cylindrical hole in a fixed workpiece. It is used to install screws and bolts. CNC drilling is a common process for products that require parts assembly.
CNC Milling
CNC milling is the most common machining process, it involves removing material from a workpiece using a cutting tool that can rotate and move along an axis. The ease of cutting depends on the complexity of the CNC milling machine.
CNC Turning
CNC turning is a highly efficient machining process that is used to shape cylindrical workpieces, but can also machine square or hexagonal raw materials. The core of CNC turning is the use of a computer-controlled lathe to rotate the workpiece using a variety of cutting tools. These tools cut the material into the desired cylindrical shape.
(Click to learn the difference between CNC milling and turning)
EDM
EDM is a manufacturing process that uses electrical spark discharge to erode and remove material, then produce complex shapes and geometries. The process works by creating a spark between the electrode and the workpiece. The machinist immerses the workpiece in a dielectric fluid, isolating the electrical energy and allowing precise control of the spark. The spark discharge vaporizes the workpiece and removes the passage material to achieve the desired shape.
Common CNC Materials and Surface Finishes in CNC Company
| Material | Stainless steel, aluminum alloy, titanium, copper, brass, steel, etc. |
| Surface Finishes | Sandblast, powder coating, anodizing, painting, polishing, heat treatment, etc. |
CNC machining is a widely accepted and versatile process in the manufacture of parts and products. Due to its accuracy, precision, and tolerance, CNC machining is used in many manufacturing industries, including automotive, aerospace, military, defense, marine, and medical. In the future, CNC machining will have a larger and broader market.
DMTC offers a wide range of precision machining services, including 3-axis, 4-axis, and 5-axis CNC machining services. As a CNC company, DMTC is equipped with modern equipment and has experienced experts to ensure you get the best spare parts at affordable prices. Welcome to send your drawings to get a free quotation!
