Milling of stainless steel with end mill

An OEM customer is looking for a coating to improve the 8 mm square cemented carbide end mill used to mill 1.4122 stainless steel. The milling process uses coolant, at a tool rotation speed of 8000 rpm and a cutting speed of 201 m/min. Axial depth is 8 mm and radial depth 0.4 mm.

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Coating challenge

Problems encountered:

  • Low thermal conductivity; heat transfer happens through the tool and not through the chips
  • High wear
  • Tendency toward notching, and chipping of the cutting-edge radius

Coating requirements:

  • Good temperature resistance wear
  • High hardness
  • Allowing a sharp edge to reduce cutting forces and further heat generation

Our coating recommendation

Cuttings tools
Hardcut milling cutter

Hardcut™ Plus

Hardcut™ Plus, a TiSiN based multi-layer coating, has been developed for high speed end-milling and gear hobbing of the hardest and toughest materials including exotic nickel and titanium alloys unde…

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Discuss your challenges with Kalpak Shaha

Dr. Kalpak Shaha, Global Segment Manager Cutting Tools, will be glad to support you.

We will get back to you as soon as possible

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Dr. Kalpak Shaha

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