The Ultimate Guide to CNC Engraving: Processes, Types, Benefits and Applications

I. Origin and development of CNC engraving

Engraving, as an ancient manufacturing technique, has occupied an important place in the history of mankind. With the development of technology, CNC engraving has emerged. This blog will delve into the process, types, advantages and applications of CNC engraving to show readers the importance of this advanced technology in the field of industrial machinery.

2. what is CNC engraving

CNC engraving is the use of computer-controlled machines to impart designs and logos on materials, and can be used to mark parts in both artistic and industrial environments, and manufacturers often use CNC engraving machines for production. Most CNC machines can support engraving, and some, such as CNC mills, have additional features that make engraving easier to apply.

3. CNC engraving workflow

1.CAD design
Designers create visualizations of engraved patterns on CAD software, and machinists need to be skilled in CAD to create complex patterns quickly and accurately.

2.CAM Programming
CAM software according to CAD design for CNC engraving machine to generate programs, select tools, set parameters and tool paths, and ultimately generate CNC machine tools can be recognized by the G code file.

3.Workpiece Setting
The machine operator sets up the workpiece before engraving, and places and levels the workpiece to avoid manufacturing errors.

4.CNC engraving
The engraving process is automated without much intervention by the technician after the initial program. When finished, the workpiece is disassembled and prepared for the next project.

4. Types of CNC Engraving

1.CNC Diamond Drag Carving
The main feature of this type of engraving machine is the diamond tip, due to the toughness of diamond, can easily carve almost any material.
2. CNC Rotary Engraving
The machine has a rotary cutting tool, the tool tip can be round or V-shaped, equipped with a unique spindle design, speed up to 20,000 rpm, depth of cut in the range of 0.5 – 3mm, versatile and inexpensive, suitable for most materials.
3.CNC Laser Engraving
A powerful laser beam strikes the material and causes sublimation, leaving a mark on the surface. The movement of the laser head is controlled by CNC technology, which is precise, fast, reliable and long-lasting.

5. Materials for CNC engraving

1.Metals
Including copper, aluminum and stainless steel, etc.

2.Plastics
Such as polystyrene, polyethylene and ABS.

3.wood
Softwoods, hardwoods and corks can be engraved.

6. Advantages and disadvantages of CNC engraving

1.Advantages
Accurate: high precision for producing large quantities of parts and complex designs for sensitive applications such as aerospace.
Versatile: suitable for different materials and designs, can engrave metal, wood, plastic, etc.
Fast: accuracy combined with speed for rapid production of multiple parts.
Reproduction: suitable for producing multiple identical parts.
2.Disadvantages
High cost: CNC engraving machines are relatively expensive
High maintenance: high technology, maintenance is complex and expensive.
High operating difficulty: requires advanced operating techniques.

7. Application areas of CNC engraving

1.Industrial Marking
Industrial markings are vital in a variety of industries, including equipment, safety and directional guidance, etc. CNC engraved markings are highly durable and resistant to wear and tear, color fading or damage in harsh environments.
2.ewelry production
Through laser engraving, deep engraving and other methods to revolutionize the jewelry industry, the results are highly reliable.
3.Signage production
Road signs or advertisements are often CNC-engraved products, and 3D cutouts can be easily created to give signage a new look.

8. Summary

CNC engraving, as an advanced processing technology, is widely used in many fields. Its advantages of high precision, versatility and speed make it an indispensable part of modern manufacturing.