What is constant surface speed ? What is use of G50 and G96 codes in English by Akash Chakre

G50 CODE USE FOR TO GIVE LIMITATION TO RPM AND G96 CODE USE FOR PROVIDING CONSTANT SURFACE CUTTING SPEED. WHEN WE USE G96 CODE FOR MACHINING ANY JOB AT THAT TIME MACHINE INCREASE ITS RPM AS THE CUTTING TOOL MOVES TOWARDS CENTRE POINT OF THE JOB. ITS RPM AUTOMATICALLY GOT INCREASES TO MAINTAIN THE VC OR CUTTING SPEED. WE HAVE TO USE G50 CODE TO GIVE LIMITATION TO RPM SUPPOSE IF YOU TYPE G50 S2000 THEN MACHINE NEVER EXCEEDS 2000 RPM EVEN AFTER TOOL CLOSER TO CENTRE POINT OF THE JOB. THE TEACH YOU THIS TOPIC IN MORE DETAILS I ATTACH HERE SOME VIDEO CLIPS KINDLY WATCH VIDEO AND SUGGEST ME IF YOU REQUIRED ANY BASUC REGARDING CNC AND VMC . THANK YOU!!