1.Nesting knife deep hole processing. The deep hole with bore diameter(generally the diameter
over 50mm)usually appropriate to choose nesting processing. The cutting load of this method
is low,improved the production efficiency,reduced the material consumption. The nesting knife,
when the diameter is small, generally choose the complete welding,when the diameter is large,
can choose fabricated or adjustable. The wear resistance strip used for guiding,the material can
be fabric bakelite, hard alloy, rolling bearing, etc,the blade planning should also consider chip
and chip breaker. It is also suitable for mass production.
2.Connect long handle twist drill on the machine to process. Connect long handle twist drill is
weld long handle on the general twist drill.Because the axial force is big when cutting,the two
edges are hard to wear symmetric,cannot guarantee the chisel edge grinding quality, and the
rigidity of the cutter bar is poor, so easy to prone to oscillation when machining, the center line
of the hole is easy to deflect, because the chip space of the drill is limited, for the sake of chip
removal and cooling cutting tool, it is necessary to make the drill out after processing a part of
the length (usually 5 ~ 10 mm).Need to choose both ends drilling method for the main axis with
long bore hole.So this deep processing method with the characteristics of poor quality, low
productivity, big labor intensity, but because of the cutting tools is simple,can be used for general
equipment,it is widely used in small batch production.
3.Choose the deep hole drill to process on the special deep hole machine. It is better to solve the
problems of cutting tool lead partial ,cooling, chip breaker and chip removal,significantly improved
the processing quality and productivity. Can process the deep hole 10-30. The deep hole
processing machine can choose special deep hole drilling machine, also can modify the general
machine.
