Article From: 1/1/2012 Production Machining
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Iscar took gundrill technology one step further when developing the Chamgun for deep hole drilling; this is a gundrill that enables the replacement of drilling heads while the driver is still connected to the machine. The “no setup time” concept enables quick head changes without the need to remove the drill from the spindle while indexing. A polyamide plastic key is used for clamping and removing the head.
A single gundrill body can carry many different types of drill head profiles, designed for use on various materials. Each drill body can carry standard drilling heads within a range of 0.2 to 0.3 mm. The Chamgun drill range is 9.8 to 16.19 mm. Drilling heads are available in half and whole sizes as standard items. Each drill pocket can carry a variety of drilling head diameters and head geometries.
The drill features a pocket that can sustain at least 15 head replacements. The connection between the pocket and tube is by a new welding process for high torque resistance. Each drill pocket can carry a variety of drilling head diameters and head geometries and chipbreakers designed for use on various materials.
