What is the purpose of a chipbreaker in cutting tools?

The primary purpose of a chipbreaker in cutting tools is to cause chips to curl and break off during the cutting process. As material is machined, the cutting tool generates chips that can become long and cumbersome, potentially causing issues such as clogging or interfering with the cutting operation. The chipbreaker is designed with a specific geometry that disrupts the flow of the chip, promoting it to curl and fracture into smaller pieces. This not only helps to keep the working area clear but also enhances the efficiency of the machining process by improving chip removal and reducing the risk of damage to both the tool and the workpiece.

By breaking the chips into manageable sizes, the chipbreaker contributes to better surface finishes and helps maintain temperature control during cutting, as smaller chips can dissipate heat more effectively than longer ones. This aspect also improves the overall stability and performance of the cutting tool.