The wide range of milling discs, special techniques when milling by hand, as well as the use with hand angle millers and in (partially) automated processes. The milling discs are available in the three different kinds “milling disc”, “double sided milling disc” and “doubleworker”, which aim different areas of application.
For all of those the following applies:
The surfaces processed with the discs are metallic bright, and therefore prevent cavities while welding. While working, the discs produce neither (unhealthy) dust nor heat, and thus no structural changes that come with heat. The amount of material removed and the fineness of the result depend on the toothing. The fewer teeth, the coarser the chips and the greater the amount of material removed. The more teeth a disc has, the finer the chips and the smoother the surface, but less material is removed. The specific toothing depends on the material to be machined and the disc size.
The discs can be used for the following tasks:
- The milling disc gets used for bevelling, deburr and flatten as well as working out weld roots.
- The double sided milling disc (DMD) is used to open weld roots, according to the literal translation of the German original description, that would be “weld root opener”. Due to the teeth geometry, it is not made for the tasks performed by a single sided milling disc.
- The Doubleworker (DW) combines the scope of single and double sided milling discs, without the need to frequently change the tools. The teeth geometry of the double sided milling disc had been adjusted to resolve the problem of chips getting stuck in the chip chamber.
Maija-Frästechnik GmbH, founded in 2012, develops, produces and sells high-quality milling tools made of hard metal. The company owns the patent for milling discs, which was registered in 2000 by the later company founder.