Deep hole drilling surface roughness
1. Chip bonding: reduce the cutting speed; avoid chipping; improve the pressure and flow of cutting fluid.
2. Bad coaxiality: adjust the coaxiality of machine tool spindle and drill sleeve; adopt suitable diameter of drill sleeve.
3. Cutting speed is too low, the feed is too large or uneven: use the appropriate cutting amount.
4. The geometry of the tool club is not suitable: change the geometric angle of the cutting edge and the shape of the guide block
Deep hole drilling mouth is flared
Bad coaxiality: adjust the coaxiality of machine tool spindle, drill sleeve and support sleeve; adopt suitable diameter of drill sleeve and replace the worn out drill sleeve in time.
Deep hole drill bit breakage
1. Bad chip breaking, chip discharge: change the size of the chip breaking groove to avoid too long and too shallow; find the chipping situation in time and replace it; increase the pressure and flow of cutting fluid; use workpieces with uniform material organization.
2. The feed amount is too large, too small or uneven: adopt the appropriate cutting amount.
3. Excessive wear of drill bit: Replace the drill bit regularly to avoid excessive wear.
4. Unsuitable cutting fluid: choose suitable cutting fluid and improve the filtration.
Low life of deep hole drill bit
1. Cutting speed is too high or too low, and the feed is too large: use the appropriate cutting amount.
2. The drill bit is not suitable: replace the tool club material; change the position and shape of the guide block.
3. Deep hole drilling cutting fluid is not suitable: change the cutting fluid with high Ji pressure; increase the pressure and flow of cutting fluid; improve the filtration of cutting fluid.
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