Bar Feed Vs. Slug feed

February 24, 2023

When machining what is best barfeed vs slug

The main difference between a bar feed and a slug is the material used. A bar feed is a long metal bar that is fed into a machine to be machined into a specific shape or size. A slug is a solid piece of material that is fed into a machine and then machined into a specific shape or size. The cost of a bar feed is typically less than that of a slug and is often used when a large number of parts are needed. The cost of a slug is typically more than that of a bar feed, but it is often the preferred option for higher precision and more intricate parts.

The main choice between barfeed and slug machining depends on several factors, including the type of material being machined, the complexity of the part, and the desired production rate. Here are some factors to consider when making this choice:

Material: Barfeed machining is typically used for long, cylindrical parts made from materials that can be easily machined, such as aluminum or brass. Slug machining is better suited for materials that are difficult to machine, such as stainless steel or titanium, or for parts that have complex shapes that cannot be easily machined from a bar.
Production Rate: Barfeed machining is faster than slug machining for simple parts that can be easily machined from a long bar. However, for complex parts that require multiple setups, slug machining may be faster since each slug can be individually machined without the need for additional setups.
Waste: Barfeed machining generates more waste than slug machining since a significant amount of material is cut away from the bar. Slug machining produces less waste since only the material needed for the part is machined.
Cost: Barfeed machining can be more cost-effective for simple parts since the cost of the material is typically lower when purchased in bulk. However, for more complex parts or materials that are expensive, slug machining may be more cost-effective since only the necessary material is used.

In summary, the choice between barfeed and slug machining depends on the specific requirements of the part being machined. For simple, long, cylindrical parts made from easy-to-machine materials, barfeed machining may be the best option. However, for complex parts made from difficult-to-machine materials or that require multiple setups, slug machining may be more effective.