Общий каталог Mitsubishi 2020 - 2021 - страница 679

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Notes on multi-function machining (MF, MS and MM breakers)

For internal grooving, the machining methods for external grooving (F212 – F213)

can be used, but please note the following precautions.

Coolant Machining blind holes

Supply large amounts of coolant for effective chip disposal aAs continuous chips tend to elongate at the back of the a during cutting. Maintain supply until the tool has been bore, the above operation is recommended. retracted completely for improved chip disposal. The recommended width of cut for x is .020 inch.

F Machining Wide Grooves

Grooving

a When the insert width is x 2 ≥ groove width a When the insert width is x 2 < groove width Chips

Coolant

aWhen the depth of cut is shallower than the insert width, continuous chips are usually produced. When plunging in aWhen the groove depth is larger than the insert width, several passes, it is recommended to carry out machining in carry out plunging in the steps above to break up chips the steps above. This ensures that coolant reaches the cutting efficiently. edge and chips are easily discharged.

Turning Machining instruction

aWhen chip breaking andaWide face grooving when the corner R of the workpiece isaIt is recommended to carry out
disposal are especiallyequal to the corner R of the insert, machine as shown above.grooving from the front end of
important, cross-feed(When corner R of the workpiece is larger than corner R ofthe workpiece. This reduces
machining is recommended.the insert, refer to the description of external wide grooving.)workpiece deflection.

aIf the groove depth exceeds a given level, chips may elongate at the wall. In such a case, increase the feed and carry out machining as shown above.