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Mitsubishi Carbide ‘Solid-indexable’ end mills reduce inventory, shorten changeovers

Editor: Briggette Jaya

The IMX series from Mitsubishi Carbide is said to combine solid carbide and indexable end mills to enable security and rigidity close to that of a solid-type end mill.

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Each head type has irregular helix flutes for vibration control.
Each head type has irregular helix flutes for vibration control.
(Source: Mitsubishi Material)

The taper and end clamping faces of the head and the holder are both solid carbide while the threaded part is steel. Other tools with a carbide head and carbide clamping section are usually constructed with a part carbide section brazed to a steel shank, creating an inherent weakness at the joint versus a solid carbide shank, the company said. The exchangeable nature of the series offers chances to reduce inventory and changeovers.

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The mills target titanium alloys and heat-resistant alloys such as Inconel, along with stainless steels, carbon and alloy steels and hardened steels. Each head type has irregular helix flutes for vibration control and the four-flute corner radius type can incorporate coolant through-holes. The series incorporates the EP7020 “Smart Miracle” coated carbide grade for improved wear resistance, the company said.

Heads are supplied in five different geometries:

  • Four-flute corner radius with through coolant – Ø10 - Ø25, with irregular helix for vibration control
  • Four-flute corner radius – Ø10 - Ø25, with irregular helix for vibration control
  • Six, 10 and 12 flute – Ø10 - Ø25 for finishing, with irregular helix for vibration control
  • Four-flute and six-flute ball nose – Ø10 - Ø25, both with irregular helix for vibration control

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