INSERT RE-GRINDING

Advantages:

• The main advantage is the cost of the insert take for example a half inch square positive milling insert in a silicon nitride base composite material, average cost for this stye of insert is about $14.00 each.Regrind cost of this insert is approximately $2.40 the insert is downsized by .010 and all lands are replaced.Thickness of the insert remains the same.

Disadvantages:

• If your machining operation is milling as in the example above there has to be in some cases a altering of the milling cutter to allow for the smaller insert inscribed circle.
• If your machining operation is turning, a toolholder has to be modified also so the insert will seat properly in the pocket.

Conclusion:

• The advantages far out weigh the disadvantages,when taken the relative cost of ceramic base materials.
• The average cost to modify a 6" milling cutter to accommodate the change of the insert inscribed circle is approximately $50.00.
• In turning it is better to have a toolholder built to accept the reground insert.Cost of a 1" square toolholder is approximately $50.00 and Erie Industrial can do all of these services.

Please call us at (814) 452-3231, (800) 999-0575

If you prefer you can Fax us at (814) 456-7176

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