NEWS
The difference between 3D printing and CNC machining
Writer： admin Time：2020-07-01 16:42 Browse：℃
The difference between 3D printing and CNC
When quoting a prototype project, it is necessary to select an appropriate processing method according to the characteristics of the parts to complete the prototype project faster and better.
At present, the main board processing includes CNC machining, 3D printing, laminating, rapid mold and so on. Today we talk about
The difference between CNC machining and 3D printing.
First of all, 3D printing is an additive technology, and CNC machining is a subtractive technology, so they are very different in terms of materials.
1. Differences in materials
The materials for 3D printing are mainly liquid resin (SLA), nylon powder (SLS), metal powder (SLM), gypsum powder (full color printing)
, Sandstone powder (full color printing), wire (DFM), sheet (LOM), etc. Liquid resin, nylon powder and metal powder
Occupies most of the market for industrial 3D printing.
The materials used for CNC machining are all plates one by one, that is, plate-shaped materials. By measuring the length, width and height of the parts + consumption
Damage, and then cut the corresponding size of the plate for processing. CNC machining material selection is more than 3D printing, general hardware and plastic
All kinds of plates can be CNC machined, and the density of molded parts is better than 3D printing.
2. Differences in parts due to molding principles
As mentioned earlier, 3D printing is an additive manufacturing. Its principle is to cut the model into N layers/N multi-points, and then follow the order
Stacked layer by layer/bit by bit, like building blocks. Therefore, 3D printing can effectively process complex parts.
For example, hollow parts, but CNC is difficult to achieve the processing of hollow parts.
CNC machining is a material-reduced manufacturing. Through various tools running at high speed, the required parts are cut according to the programmed tool path. Therefore CNC
Machining can only process rounded corners with a certain degree of arc, but cannot directly process internal right angles. It must be processed by wire cutting/sparking and other processes
to fulfill. CNC machining at right angles is no problem. Therefore, parts with inner right angles can be considered for 3D printing and processing.
There is also a curved surface. If the surface area of the part is relatively large, it is also recommended to choose 3D printing. CNC machining of the curved surface is time-consuming, and
If the experience of programming and operator is not enough, it is easy to leave obvious lines on the parts.
3. Differences in operating software
The 3D printed slicing software is mostly easy to operate, even lay people can be proficient in slicing in the next two days under professional guidance
Software. Because the slicing software is currently optimized very simply, the support can be automatically generated, which is why 3D printing
Can be extended to individual users.
CNC programming software is much more complicated and requires professionals to operate. People with zero foundation generally need to learn about half a year.
In addition, a CNC operator is required to operate the CNC machine.
Because the programming is very complicated, a part can have many CNC machining solutions, and 3D printing is only because of the position Processing time consumables have a small impact, which is relatively objective.
4. Differences in post-processing
There are not many post-processing options for 3D printed parts. Generally, they are sanding, oil injection, deburring, dyeing and so on.And CNC machined parts post-processing options are varied, in addition to grinding, oil injection, deburring, and electroplating,
Screen printing, pad printing, metal oxidation, laser carving, sand blasting, etc.
Wen Dao has succession, and the art industry specializes. CNC machining and 3D printing have their own advantages and disadvantages. Choose the right processing technology
PREVIOUS：CNC post processing NEXT：SLA 3D printing services
CNC MACHINING SERVICES
- 3D Printed aluminum parts
- Aluminum parts anodizing
- Aluminum parts Brushing
- Aluminum parts buff polishing
- Aluminum parts CNC Turning
- Aluminum parts engraving
- Aluminum parts milling
- Aluminum parts powder coating
- Aluminum parts routing
- Aluminum plate sheet laser cutting
- Aluminum plate sheet turret punching
- Aluminum plate sheet water jet cutting
- Custom CNC aluminum parts
CONTACT US
Phone: 86 17344894490
Email: business@chalcoaluminum.com
Add: No.89 Science Avenue,National HI-Tech Industry Development Zone,Zhengzhou,Henan
