A CNC mill is machining slots in a plate that are slightly wider than the end mi

Question

A CNC mill is machining slots in a plate that are slightly wider than the end mill selected for machining them, and the depth is two times the end mill diameter. The coolant stream spraying the end mill shifts due to a drop in the reservoir's level, what problems may arise? Note: THERE MAY BE MORE THAN ONE CORRECT ANSWER O A) Surface finish quality will degrade dramatically B) An Alarm Will Sound c) Tool tip temperature will climb and metal from the work piece will stick to the tool O D) Spindle (demand) power will climb

Explanation / Answer

A,C,D are correct. Alll the three cases will arise because of the less coolant stream available or no coolant stream at all. Coolant is responsible for smooth operation, low temperature of tool and work piece, Smooth machined surfaces, Low power consumpton,

If any advanced feed back system is available with the CNC, when the coolant is over, the system will indicate it in the form of alarm or light.

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