Do you know the chip removal method for deep hole drilling at Dongguan CNC Precision Machining Factory
author: Hansheng Automation
2023-05-11
When the precision requirements for deep hole machining at Dongguan CNC Precision Machining Factory are high, internal hole turning is also required after drilling, mainly to improve the accuracy of hole size and geometric shape and reduce surface roughness values.
Deep hole turning is different from general turning. By installing a deep hole boring head on the drill pipe, coarse and fine turning can be carried out. The boring head is threaded to the drill pipe (not shown), and the structure of the boring head.
To prevent deformation and vibration of the tool bar due to excessive overhang, there are guide blocks before and after the boring head. The guide blocks can be made of wood, copper, cast iron, or hard alloy materials. Before turning the hole, a guide hole should be turned to coincide with the rotation axis.
The surface roughness of the guide hole at Dongguan CNC Precision Machining Factory during precision turning should reach Ra3.2m, and the depth of the guide hole should be 0.6D1.5D. Adjusting the size of the boring tool with a tool block.
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