Hi all,
As Titanium and its alloys are high strength materials, it requires special care during machining of such materials. Can I know dimensional aspects to be considered during machining of Titanium alloys?
To obtain precision in dimensional aspects you need to use tools with sharp cutting edges.
For example, if the tool is an coated tool, PVD coating is better than CVD, because in the first case the thickness is about 3-5 micrometer.
Dear Mohandas K N , there are many publications in the Internet about different processes and fields of application. Is there any specific process you are interested in?
Dear Rentsch, Thank you for the reply. I am looking for the machining of titanium for aerospace applications. Is it possible to throw some lights on the machining of titanium? I am in association with CMTI (Central Manufacturing Technology Institute), Bangalore for this research.
Dear Mohandas K N, at our Lab we have been working on Drilling processes for aero space applications for several years using / developing different strategies, processes and methods for specific Tasks and parts of aircraft production (in cooperation with European aircraft manufacturer). One was focusing on Drilling holes in centerboxes avoiding Chips to fall in the inside structure where we employed a suction System, but we also analyzed and developed different Tools a.s.o. Often we drill stacks of differents materials like Al, cfrp and Ti (up to 30mm+). I remember a presentation on milling of Titanium parts wish showed the effects of tool design and cutting strategy change on the tool life time wish let to significant savings in tool costs. Orbital Drilling is a nice process in Terms of surface and subsurface Quality, but rather slow.
Dear Sir, I read in one of the literature that Titanium has high spring back effect. I want to work on that aspect.
Dear Mohandas K N, Yes the spring back is very much observed especially while machining thin wall Ti6AL4V aerospace parts.While milling such parts sharp geometry tools needs to be used and more the number of flutes it is better ( 6 to 10)
Also chip evacuation should very good with coolant concentration more than 8%.
There are machining strategies which ensures uniform chip load which help in increase tool life.
Hope this will help you in reducing the spring back