There are many reasons for early fracture, and the specific reasons and solutions are as follows:
1. Sawing parameters:
A. The cutting speed is too high(Solution: Reduce the sawing speed appropriately)
B. Improper selection of feed pressure(Solution: Adjust the feed pressure)
C. The feed speed is too high(Solution: Adjust only the speed)
2. sawing machine reason:
A. The distance between guide arms is too large(Solution: Make the guide arm as close to the workpiece as possible)
B. Too much tension(appropriate reduction of tension)
C. Poor contact or wear of guide block and guide arm(Solution: Replace the guide block)
D. Bad contact between band saw blade and saw wheel edge(Check or even replace the saw wheel)
E. Saw frame jumping (shaking) motion(Solution: Check whether only the oil cylinder enters the air, whether the oil quality changes, whether the oil cylinder is worn)
F. The vise is not tightly clamped and the mouth surface of the vise is not good
(Solution: check the vise, trim the jaw surface or even replace the jaw)
G. Machine vibration(Solution: Check the machine; Check for external sources)
3. Cutting fluid:
A. Cutting fluid flow is too small, insufficient cooling(Solution: increase the flow rate, adjust the water outlet so that the cutting fluid flows into the incision)
4. Saw blade selection:
A. Band saw blade is rusted and corroded(Solution: Replace the band saw blade)
B. Band saw blade greater than the wear limit(Solution: Replace the band saw blade)
C. Damage, injury or defect between teeth(Solution: Replace the band saw blade)
D. The band saw blade is not good to the welding joint(Solution: re-weld or replace the band saw blade)
5. Sawing materials:
A. Material irregularities affect clamping(Change the clamping method to ensure that the material is clamped)
B. Cut off finished product involvement(Remove sawdust in time)