Reamer solution

The aperture is bigger, the error is bigger

Reduce the outside diameter of reamer appropriately according to the specific situation; Reduce cutting speed; Adjust the quantity of feed or reduce the machining allowance; Reduce the main deflection Angle appropriately; Unserviceable reamer for straightening or scrapping bent; Carefully finish with tartar; The control swing is within the allowable range; Select cutting fluid with better cooling performance; Before installing the reamer, the reamer taper handle and the main shaft taper hole of the machine tool must be cleaned by oil and stone. Trimming reamer flat tail; Adjust or replace spindle bearing; Readjusting floating card head and adjusting coaxial degree; Pay attention to correct operation.

Aperture to narrow

Replace the outside diameter of reamer; Increase the cutting speed appropriately; Appropriately reduce the quantity of supply; Increase the main deflection Angle appropriately; Select oil cutting fluid with good lubrication performance; Replace the reamer regularly, grinding the reamer part correctly. When designing the reamer size, the above factors should be taken into account, or the value should be determined according to the actual situation. For experimental cutting, take the appropriate allowance and sharpen the reamer.

The inside hole is not round

The reamer with less rigidity can adopt the reamer with unequal tooth spacing. The reamer should be installed with rigid connection to increase the main deflection Angle. Qualified reamer is selected to control the tolerance of hole position in preprocessing. Adopt unequal tooth distance reamer, adopt longer and more precise guide sleeve; Select qualified blank; When more precise hole is hinged by equal-toothed reamer, the clearance of machine tool spindle should be adjusted, and the fit clearance of guide sleeve should be higher. Adopt proper clamping method to reduce the clamping force.

Hole surface

Reduce the residual amount of hinge holes; Reduce the back Angle of the cutting part; Trim the blade band width; Select qualified blank; Adjust machine tool spindle.

The inner hole surface roughness value is high

Reduce cutting speed; Select cutting fluid according to processing materials; Reduce the main deflection Angle properly and sharpen the reamer blade properly. Reduce the residual amount of hinge holes properly; Improve the position precision and quality of the front bottom hole of the hinge hole or increase the residual amount of the hinge hole; Select qualified reamer; Trim the blade band width; Reduce the number of reamer teeth according to the specific situation, increase the chip capacity slot space or use the reamer with blade inclination Angle, so that the chip removal is smooth. Replace the reamer regularly and remove the grinding area when cutting. In the process of grinding, using and transporting the reamer, protective measures should be taken to avoid collision. For the damaged reamer, the damaged reamer shall be repaired or replaced with a fine whetstone. With oil stone renovation to qualified, USES the anterior horn 5 ° ~ 10 ° of the reamer.

The service life of reamer is low

The reamer material can be selected according to the processing materials, and carbide reamer or coating reamer can be adopted. Strictly control the cutting amount of cutting edge grinding to avoid burns; Always select the cutting fluid correctly according to the processing materials; Frequently remove the chip in the chip cutting groove, with enough pressure cutting fluid, after fine grinding or grinding to meet the requirements.

The position precision of the reaming hole is too poor

Replace guide sleeve regularly; Lengthen the guide sleeve to improve the precision of the clearance between the guide sleeve and the reamer. Timely repair machine tool and adjust spindle bearing clearance.

Reamer teeth collapse edge

Modify the size of the prefabricated hole; Reduce material hardness or use negative front Angle reamer or carbide reamer. Control the swing within the qualified range; Increase the main deflection Angle; Attention should be paid to timely remove the chip or use the tipped reamer with the edge; Pay attention to the quality of cutting.

Break the hinge handle

Modify the size of the prefabricated hole; Modify the residual distribution and choose the cutting amount reasonably. Reduce the number of reamer teeth, increase chip tolerance or remove one tooth from the clearance.

The center line of the hole after reaming is not straight

Add reaming or boring holes; Reduce the main deflection Angle; Adjust the proper reamer; Replace reamer with guide part or lengthened cutting part; Pay attention to correct operation.