There are many reasons for the uneven cutting, 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: Solution: Replace guide block)
D. Band saw blade running unstable(Check the main drive, bearing and saw frame lifting structure)
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. Poor contact between band saw blade and saw wheel edge(Solution: Check or even replace the saw wheel)
G. Machine vibration(Solution: Check the machine; Check for external sources)
3. Cutting fluid:
A. Improper selection of cutting fluid(Solution: Replace the cutting fluid)
B. 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)
C. Improper concentration of cutting fluid(Adjust cutting fluid concentration)
4. saw blade selection:
A. Improper selection of band saw blade type and tooth shape(Solution: Select the appropriate tooth shape according to the material and shape of the workpiece)
B. Band saw blade sticky ruler, chip accumulation(Solution: the band saw blade is properly run in; Select the correct sawing parameters; Select cutting fluid and adjust the concentration)
C. Band saw blade rusted and corroded(Change band saw blade)
D. Band saw blade greater than wear limit(Solution: Replace the band saw blade)
E. The tip of the tooth is damaged, damaged or defective(Solution: Replace the band saw blade)
F. Band saw blade is not good for welding(Solution: re-weld or replace the band saw blade)
5. Sawing material:
A. Sawing material The material is unknown(Solution: figure out the material, and then select the correct sawing parameters for sawing)
B. material with hard points or surface hardening(Solution: surface hardening materials need to adjust parameters. Reduce belt speed and feed speed when hard points are encountered)
C. Sawing material stiffness is too poor
Solution: Choose the right band saw blade. Sawing is performed under appropriate sawing parameters. Change the clamping method if necessary)