Ceramic Tips Machining

Hard turning and milling.

Ceramic tips machining.

Based on a recent conversation with mr. There is no need for coolant. While there is a learning curve to machining macor it is certainly achievable with the correct skill and patience. Prioritize surface speed when you re having problems it s human nature to slow down mr.

Depth of cut notching is more pronounced versus carbides. Additionally materials like silicon carbide sic may not fit the precise definition of a ceramic material but they can still be classified as part of the ceramic family. If you do machine macor wear breathing protection. Those ceramics will do hard steels but cbn is the best choice for hard steels above 50rc.

The q32 is a valenite grade also one of those hot pressed silicon nitrides. Howard here are seven tips for those considering a trial or re evaluation of ceramic tools. We show the machining of the od of a double race bearing od from a metric size to an imperial size using a ceramic wnma tip. Higher cutting speeds of 600 4000 sfm are possible with ceramic tools sialon and sic whisker reinforced al 2o 3.

Ceramic machining ceramics can be made from several different types of hard metal oxides or nitrides. A cutting material s performance is the basis for optimum machining of a workpiece. The black ceramics are usually silicon nitride and are best for very high rate machining of cast irons. Those whisker reinforced ceramics are best suited for high temp alloys.

Macor is one of the few ceramics that can be machined using regular metal working tools. The machining characteristics are very different from metals and plastics so we recommend you take some time to practice drilling turning and milling the macor before you try to make your own component to understand how it behaves. When turning it is recommended to use ceramic specific tool holders. Machining double bearing od.

I have used a white colored ceramic called macor which can be machined even with hss tools although it does wear them away a bit faster than tough steels. Normal negative carbide tool holders have a top and side rake of 5 whereas when machining with ceramics it is recommended on materials under 45 hrc to use tool holders with 5 top rake 10 side rake. In general it is a continuous machining process that allows a single insert to be engaged in the cut for relatively long periods of time. I used macor in applications where it had to withstand moderatly powerful laser hits and remain white.

When machining with ceramic tooling. Under the spk brand ceramtec offers a unique program in terms of scope diversity and performance of indexable inserts made of ceramic cutting materials polycrystalline cubic boron nitrides cbn and cermets for turning grooving milling and boring in a wide variety of industrial applications.