Problems in the use of cemented carbide saw blades and their solutions

The use of cemented carbide saw blades is more and more widely, and the correct selection of alloy saw blades is of great significance for improving product quality, shortening process cycle and reducing processing cost.

What is the cause of some of the problems encountered during use? And how to deal with it?

Problems:

First, abnormal sound

Reason: 1, the alloy saw blade excessive use, the temperature is too high, because the external force causes the saw blade to deform, must carry on the correction.

2, equipment spindle clearance, runout, eccentric pendulum.

3, saw blade cracks, foreign bodies attached to the cut when the material is encountered outside.

Second, the Feed anomaly

Cause: 1, Alloy saw blade slipping

2. The spindle is jammed by foreign body

3, there is a foreign material in the discharge port

Third, cutting workpiece surface burr or uneven

Cause: 1, saw blade uneven need to correct

2, saw blade serrated defect

3, saw blade installation is not correct

4, saw blade use time is too long, the precision of the knife head drops

Four, clip saw phenomenon

Reason: 1, Alloy saw blade design unreasonable, not timely chip evacuation

2, saw blade material is not suitable for the processing of materials

3, excessive use, saw blade temperature is too high

4, saw blade deflection or machine spindle runout or not installed correctly

Other factors:

Five, the knife head wear too fast

Reason: The angle of the cutting edge is unreasonable, the tip binding agent is too soft (for the cut material); The blade has poor abrasion resistance and insufficient coolant; saw blades are not perpendicular to the cut material.

Solution: Replace the appropriate alloy saw blades, check the cooling water system, check the spindle flange to ensure the verticality of the blades and equipment, and check the speed of the saw blades at work.

Six, uneven wear on both sides of the knife head

Reason: Saw blade tilt Cutting

Workaround: Check blade tilt Condition

Seven, Alloy saw blade dull, can not be cut

Cause: The blade is not sharp enough, needs grinding, the blade is too high, the power is not enough to cut the saw blade properly, and the blade is not applied enough to cut into the pressure.

Solution: Timely and reasonable grinding saw blade; Select the corresponding diameter saw blade according to the device's instruction manual, check the transmission belt, voltage and motor, and make sure that enough and not too large cut-in pressure is used.

Problems in the use of cemented carbide saw blades and their solutions