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Kennametal recently announced its new Mill 4-12KT, the next generation of tangential shoulder mills, producing high quality floor surface finishes for nearly all steel and cast-iron applications.

New tangential shoulder mill features an innovative triangular-shaped margin design providing cutting edges with exceptional strength.

Kennametal recently announced its new Mill 4-12KT, the next generation of tangential shoulder mills, producing high quality floor surface finishes for nearly all steel and cast-iron applications.

“The Mill 4-12KT uses 15% lower cutting forces, an important consideration with today’s lighter-duty, 40-taper machine tools,” said Tim Marshall, Senior Global Product Manager. “That allows customers to feed faster without putting additional stress on the spindle. And in long overhang situations or where the part fixturing is less than optimal, lower forces equate to less chatter, reduced edge chipping, and smoother surface finishes.”

Mill 4-12KT has tangentially mounted inserts with four cutting edges per insert for reduced tooling costs. Seven corner radii from 0.016" (0.4 mm) to 0.122" (3.1 mm) are available, along with coolant-through, medium and coarse pitch cutter bodies 2" (50mm) to 8" (200mm) in diameter. With an axial depth of cut range from 0.019" to 0.472" (0.5 to 12mm), Mill 4-12KT covers most shoulder milling applications.

Multiple factors contribute to significant performance increases, even in aggressive cutting conditions:

  1. The tangential, “on-edge” insert design also allows the insert to take advantage of the strength of the carbide thickness more so than radially mounted inserts found on traditional milling cutters.
  2. A shallow pocket design allows the core size of the cutter body to be very robust.
  3. The axial and radial seating surface designs provide exceptional stability.

The Mill 4-12KT is the perfect complement to Kennametal’s existing shoulder milling portfolio. This includes the Mill 4-11 and Mill 4-15, cutters known for their ability to generate shoulders with high quality wall surface finishes.

Mill 4-12KT cutter bodies are available in medium and coarse pitch.
The innovative triangular-shaped margin on the new Mill 4-12KT provides cutting edges with exceptional strength.
Mill 4-12KT has tangentially mounted inserts with four cutting edges per insert for reduced tooling costs.

For more information on the Mill 4-12KT and to browse the selection of mills and inserts, go to MSCDirect.com.

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Hello,

 

    We currently have couple of those at works, pretty cool tools.    I want check to see if they use right speed/rpm?   For last few months since using mill 4-12kt side milling 5 inserts, the inserts been wear out so fast.  I m pretty sure it could last twice longer.   Currently they have 1800 rpm, 35 ipm going .385 deep for low alloy steel.     So I'm checking to see what the right calucatue for this tool.

 

Many thanks chris

   

Hi Chris,

 

Just a few questions to pinpoint the recommended SFM.  Is the low alloy steel heat-treated or annealed? Are you using the 2.00" diameter cutter?  What grade of insert are you running @ 1800 rpm.  ...And lastly are you running with coolant?  Thanks.

   

Thank Hertel for their designs!

 

1  

Interested in these. No mill..yet, just a standing drill.

   

You can view Kennametals product offering on MSCdirect.com:

https://www.mscdirect.com/products/voe/kmt-mill-4-12-kt?intcmp=KMTmill41...

   

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Kennametal delivers productivity to customers seeking peak performance in demanding environments by providing innovative custom and standard wear-resistant solutions, enabled through our advanced materials sciences, application knowledge, and commitment to a sustainable environment.

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