The grainless cutting technology developed by EMAG provides new possibilities for hard cutting. Lineless cutting can achieve extremely short cycle times and excellent surface quality. This means that the surface quality that could only be achieved by a special grinding process (plunge grinding) can now also be achieved by non-grain cutting, for example when machining a non-grain seal seat.

The advantages of scraping include extremely short cycle time (up to 10 times faster than grinding or ordinary cutting) (corner radius 0.8mm, feed 0.15mm compared with 1.5mm, surface roughness of Rz6.3). When the maximum feed reaches 1mm/revolution, the advantages of surface quality scraping with Rz <1 µm include extremely short cycle time (up to 10 times faster than grinding or ordinary cutting) (corner radius 0.8mm, feed Compared with 0.15mm and 1.5mm, the surface roughness of Rz6.3). When the maximum feed reaches 1mm/revolution, a surface quality of Rz <1 µm can be achieved.

EMAG's scraping technology is quite mature and has been widely used in many projects for mass production in the past 10 years. Therefore, the VT series machine tools have been optimized for the application of this technology. Including the machine tool mechanical system and turret, as well as the parameter setting of the rotary axis and its control technology setting. Combined with the control software developed for this process, EMAG has successfully developed a simple operation method for this demanding turning process.

Advantage :

1､ Reduce tool costs and shorten cycle time, thereby reducing overall costs

2､Able to reach the extremely high surface quality of Rz <1 µm, thus eliminating the need for additional process steps

3､The cycle time is extremely short, and the machine tool required is less, so the required area is smaller

4. Through dry processing technology and low energy consumption, the impact on the environment can be reduced

5､Compared with grinding tools, this process uses general-purpose tools, so it is extremely flexible

6､The use of EMAG process technology can realize hard processing and soft processing

7､The machine tool is completely designed for non-grain cutting applications

Shaft scraping example

Three-column groove shell scraping, instead of grinding

Silicon steel sheet scraping, greatly improving efficiency