FAQ : End Mills - Union Tool Europe S.A.

FAQ : End Mills

Most asked questions

How to reduce tool wearing when side milling by a ball end mill ?

Velocity must be adjusted

What is the difference between the right helix and left helix ?

The direction of chip evacuation and cutting resistance

What coolant is recommended for milling copper ?

Oil or oil mist

What is the difference between an even or odd number of flutes ?

Odd flute suppress chattering, but it’s difficult to measure the diameter

What is a ceramics end mill ?

The tool dedicated to heat-resistant alloy processing that
takes advantage of the high hardness and heat resistance

Which tool is suitable for processing pre-sintered ceramics ?

Non-coated or DLC coated tools are most suitable

What are the differences between Vertical MC and Horizontal MC ？

Vertical : limited space available > small batches Horizontal: mass production of lightweight parts

Vertical : limited space available > small batches

Horizontal: mass production of lightweight parts

How to use the tool holder correctly ?

Every tool holder has its advantages and disadvantages

How to choose the tool holder ?

It depends on the application

What are the conditions required to achieve a finishing surface of Ra = 0.1 μm ?

Set it with the expectation that half the value of Rz =??2 / 8? (μm)

What is the best coolant supply method, through the spindle or via a nozzle ?

Basically, the through spindle can provide a more stable supply

Does the coolant nozzle position affect the tool life ?

Yes, definitely

UDC and DIA coated products applicability

UDC is not recommended for Graphite – DIA is not suitable for Cemented Carbide

What are the suitable conditions for SUS630 material (Stainless steel)

Check the hardness of the material and then set the parameters accordingly

How CZS got broken when milling in Z axis (vertical milling) ?

Feed rate is not correct

What are the benefits of Trochoidal milling ?

This milling strategy improves tool’s life and reduces chattering