Deep hole drilling machines consist of a clamping device and a drilling machine. As the process of drilling usually takes place horizontally, a great deal of space is required. A drilling mill is fitted with a tool to cut very precise holes, and in modern machines, a CNC control centre guides it with exceptional levels of accuracy.
CHALEASSIERE Deep hole drilling machine in operation
After a standard drill reaches a certain depth, chippings start to emerge from the entry point - carried up the tools spiralled shaft. But when drills are reaching significant depths, these chippings can accumulate and cause blockages.
To tackle the problem of blockages caused during deep hole drilling, manufacturers developed "single lip" deep hole drilling machines. Instead of featuring a spiral design, they have a channel that runs along the entire length of the deep hole drilling machine. During the drilling process, coolants are forced down the channel under pressure. These lubricating coolants push the chippings up to the surface, where they can be removed as drilling continues. Unlike drilling with lathes, deep hole drilling machines require large facilities for the storage and filtration of coolants and lubricants.