The M in numerical control machine tool and process designing dictates

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Auxiliary function word is the direction of rotation that is used at appointing main shaft, start, stop, the switch of cooling fluid, the clamp of workpiece or cutting tool and loose, of cutting tool change wait for a function. Auxiliary function word is mixed by M of address accord with ever since composition of two digit word. The regulation in JB3208-83 standard expresses as follows: Program of M00* of function of limits of action of function of code of function of limits of code function action stops 1M01* of M36* feed limits to plan to end program of 2M02* of M37* feed limits to end main shaft of 1M03 of limits of speed of M38* main shaft to arrange hour hand main shaft of M05 of archives of rotate of tine of anticlockwise rotational M40-M45* stops main shaft of 2M04 of limits of speed of rotational M39* main shaft M46-M47* , positional 1M12* does not appoint straight displacement of the lines of M56* cutting tool, positional 2M13 main shaft arranges hour hand, cooling fluid opens M57-M59* not to appoint M14 main shaft anticlockwise, cooling fluid opens M60 to change working M15* is moving M61 workpiece is linear displacement, positional 1M16* loses straight displacement of the lines of athletic M62* workpiece, positional 2M17-M18* does not appoint M63-M70* not to appoint M19 main shaft directional stop displacement of M71* workpiece angle, positional 1M20-M29* never appoints displacement of M72* workpiece angle, positional 2M30* punched tape ends M73-M89* not to appoint M31* each other to lock up bypass M90-M99* to never do not appoint M32-M35* CNC Milling CNC Machining