Sharp SW-120NC, Instruction Manual

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9-6
SOLUTIONS TO SAWING PROBLEMS
Table Of Contents
#1. Heavy Even Wear On Tips and Corners Of Teeth #11. Uneven Wear Or Scoring On The Sides Of Band
#2. Wear On Both Sides Of Teeth #12. Heavy Wear And/Or Swagging On Back Edge
#3. Wear On One Side Of Teeth #13. Butt Weld Breakage
#4. Chipped Or Broken Teeth #14. Heavy Wear In Only The Smallest Gullets
#5. Body Breakage Or Cracks From Back Edge #15. Body Breaking – Fracture Traveling In An Angular
Direction
#6. Tooth Strippage #16. Body Breakage Or Cracks From Gullets
#7. Chips Welded To Tooth Tips #17. Band is Twisted Into A Figure "8" Configuration
#8. Gullets Loading Up With Material #18. Used Band Is "Long" On The Tooth Edge
#9. Discolored Tips Of Teeth Due To
Excessive Frictional Heat
#19. Used Band Is "Short" On The Tooth Edge
#10. Heavy Wear On Both Sides Of Band #20. Broken Band Shows A Twist In Band Length.
#1. Heavy Even Wear On Tips and Corners Of Teeth
Probable Cause :
A. Improper break-in procedure.
B. Excessive band speed for the type of material being
cut. This generates a high tooth tip temperature
resulting in accelerated tooth wear.
C. Low feed rate causes teeth to rub instead of
penetrate. This is most common on work
hardened materials such as stainless and toolsteels.
D. Hard materials being cut such as "Flame Cut Edge"
or abrasive materials such as " Fiber Reinforced
Composites".
E. Insufficient sawing fluid due to inadequate supply,
improper ratio, and/or improper application