A super alloy is an alloy that exhibits excellent mechanical strength and resistance to creep (tendency for solids to slowly move or deform under stress) at high temperatures; good surface stability; and corrosion and oxidation resistance. Heat resistant super alloys (HRSA) can be divided into four material groups; nickel-based, iron-based, cobalt-based and titanium alloys. Titanium can be pure or with alpha and beta structures. The machinability of both HRSA and titanium is poor, especially in aged conditions, which impose particular demands on the cutting tools.
Inserts with a positive basic shape and sharp edges should always be used. Use the AL-geometry. GC1115 is a high wear resistance, recommended for roughing.H10 is uncoated and is the first choice grade in most cases, from roughing to finishing.For finishing under stable conditions, the polycrystalline diamond (PCD) tipped insert grade CD10 is recommended. CD10 withstands built-up edge better than carbide grades. It provides a good surface finish and also a longer tool life.
Sachin Kadam (Sandvik Asia Private Limited)
Pune Mumbai Road, Pimpri Chinchwad, Maharashtra - 412312
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