PCD Chipbreaker Inserts
Lovejoy Tool Company’s PCD chip control geometry inserts are designed to break chips and increase production. According to the company, nests of stringy aluminum and copper alloys are common in turning and boring applications, especially on a screw machine. The chip control geometry is said to break the chip at the cutting point, creating smaller chips and virtually eliminating nests. This decreases production time and improves surface finish, the company says. Also, the inserts produce less cutting pressure and heat that can expand parts, which increases tool life.
The inserts are available in two chipbreaker geometries, tailored to finishing or general-purpose machining, and three PCD grades in a variety of common shapes.
To make the transition to hard turning, you'll need to switch from carbide to CBN inserts, but that is easier (and more economical) than you might think. It's making the jump to much higher surface speeds that might scare you off. It needn't. Here's why.
The more common twist drill point geometries often are not the best for the job at hand. By choosing the best point for the material being drilled, it is possible to achieve better tool life, hole geometry, precision, and productivity.
Economic efficiency is an important consideration when choosing tools for challenging metals.