The new stainless streel insert drill part with additive manufactured drill.
The new stainless streel insert drill part with additive manufactured drill.

Concept Laser has made a new stainless streel insert drill for tool specialist Mapal using additive manufacturing technology.

The part has been made using a hybrid process – the tool shank is machined conventionally and the drill is laser melted with additive methods.

The QTD insert drill was developed with diameters from 8 to 32.75 mm while previous it was only available in diameters of 13 mm and greater. One reason for this is the coolant supply in the tool body. The smaller the tool body, the greater the adverse effect the standard central coolant supply on the tool's performance. Central coolant supply weakens the core of the drill and makes it unstable. In addition to this, the cooling channels must be ever smaller. That reduces the flow of coolant to the insert. However, the new design now allows even solid drills to be produced in the 8 to 12 mm diameter range, the companies say. Compared with the previous central coolant supply with y diversion, a spiral coolant routing reportedly increases the coolant flow by 100%.

This story is reprinted from material from Concept Laser, with editorial changes made by Materials Today. The views expressed in this article do not necessarily represent those of Elsevier.