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BIG KAISER introduces two versions of the C-Centering Cutter, a multifunction cutter capable of spot drilling, centering and chamfering. The C-Centering Cutter is an indexable cutter that uses a specialized insert that can start a hole from a solid piece, something extremely difficult to do. It can also perform spot drilling and 90-degree chamfering at the same time or can strictly be used for hole chamfering.
During spot drilling, the insert nose radius can be easily chipped with general cutters since the center has a peripheral speed of zero. The coolant hole in the C-Centering Cutter allows cooling of the cutting edge, which reaches high temperatures during spot drilling, and enables immediate chip evacuation. This prevents chipping during spot drilling.
A benefit of indexable tools is that its life is significantly extended. Once a carbide tool is worn out, there is no other use to it and ends up being thrown away. With an indexable cutter, a small insert can be replaced when worn out, so the cutter body can be reused multiple times.
The new version of this tool is a three-insert C-Centering Cutter, which is only used for chamfering. This version is perfect for general chamfering and results in a reduction of cycle time over using the single insert version.
Related Glossary Terms
- centering
centering
1. Process of locating the center of a workpiece to be mounted on centers. 2. Process of mounting the workpiece concentric to the machine spindle. See centers.
- chamfering
chamfering
Machining a bevel on a workpiece or tool; improves a tool’s entrance into the cut.
- coolant
coolant
Fluid that reduces temperature buildup at the tool/workpiece interface during machining. Normally takes the form of a liquid such as soluble or chemical mixtures (semisynthetic, synthetic) but can be pressurized air or other gas. Because of water’s ability to absorb great quantities of heat, it is widely used as a coolant and vehicle for various cutting compounds, with the water-to-compound ratio varying with the machining task. See cutting fluid; semisynthetic cutting fluid; soluble-oil cutting fluid; synthetic cutting fluid.
