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To smooth the production of nickel-based superalloy to a high temperature alloy castings, the difficulty is quite large, because, after all, is not an ordinary high-temperature alloy steel, performance, quality and other aspects are more special. For example, it is very large cutting forces, even at the cutting temperature above 600 ℃, the strength nickel-base superalloy materials still higher than ordinary steel material; and hardening tendency is also great, after cutting surface will produce a hardened layer has a great influence on tool life, often have serious boundary wear.

Nickel-based superalloy processing difficulty also more than these two, because the main ingredient for nickel-based alloy of nickel and chromium, with further addition of small amounts of other elements molybdenum, tantalum, niobium, tungsten, etc., but these elements are also used to make carbide, use them to produce high-temperature alloy machining diffusion wear and abrasive wear.
There is a nickel-base superalloy is cutting, cutting a lot of heat generated by the tool to withstand at high temperatures and high cutting forces, easily lead to plastic deformation of the cutting edge, adhesion and diffusion wear.