Tip Clearances in Blades
 

Hell all,
i AM NEW TO BLADE DESIGN...COULD ANYONE PLS HELP ON TIP CLEARANCES IN BLADES..I NEED TO KNOW THE SIGNIFICANCE OF TIP CLEARANCES IN BLADES...Y THIS IS IMPORTANT..IS THER ANY MATERIAL WHICH CAN HELP ME THOUGH THIS??

MANY THANKSIN ADVANCE..:)