Understanding Turning & Milling Boring

Boring Bars

The basic boring bar is essential equipment in nearly every machine shop. Appropriate for most applications, single-edge boring bars are cost-effective with a single point of contact with the workpiece. Because the bar is unsupported vibrations or chatter can occur, which is the only significant drawback to this boring option.

Boring Mills

The main difference between a boring bar on a lathe and a milling machine is that it requires the use of an adjustable boring head. This factor can add complexity to the setup. The basic boring head moves the boring bar’s position from the axis of the hole to achieve the specified diameter. Machinists can mount the boring bar in several different positions to bore a wide range of hole sizes with these inexpensive heads. 

Boring heads are used most often with conventional milling machines, but they can be used on CNC machines. Boring on a mill lets you engage more than one cutting edge, which are frequently employed in high-production environments. There are two ways to set up dual boring heads. First, the two cutting edges are set to the same diameter, producing a faster feed rate. The second method sets the cutting edges on two different diameters, which results in more material being removed per pass. 

Universal DeVlieg provides innovative and cost-cutting tool holding and high precision boring solutions to the machine tool industry, servicing a diversified customer base. The combination of over 32,000 active part numbers, over 10,000 standard items, and our technical support staff deliver design engineering expertise that is unmatched in the industry. To learn more about Universal DeVlieg, contact us This email address is being protected from spambots. You need JavaScript enabled to view it. or 877.308.3077 or visit at universaldevlieg.com.