how can a built up edge cause a reamer course hero

What are the benefits of using reamers?

The last thing a machinist wants to see is an oversized hole on a part they have already preformed many operations on. Remember, reamers have the benefit of offering consistent hole size, preventing an out of tolerance finish. These consistent holes lead to valuable time savings and reduced scrap costs.

How to choose the right CNC reamer for your project?

Achieve a Quality CNC Finish – When a high surface finish is required of a hole, reamers should always be used to reach the desired tolerance. Both the pre-drilled hole and the tool’s margin help to keep the reamer centered while cutting, leading to a better finish. Minimize Machining Production Runs – For machine shops, consistency is a priority.

Why choose a reamer shank?

At Harvey Tool, reamer shanks are oversized to help maintain tool strength, stiffness, and accuracy. Shanks also have an h6 tolerance, which is crucial for high precision tool holders, such as heat shrink collets.

What does D1 and D2 mean on a reamer?

In the above image of a straight flute reamer, D1 references the reamer diameter, the specific size intended for your hole; and D2 points to the shank diameter. At Harvey Tool, reamer shanks are oversized to help maintain tool strength, stiffness, and accuracy.

Most recent answer

When the friction between tool and chip is high while machining ductile materials, some particles of chip adhere to the tool rake face near the tool tip. When such sizeable material piles up on the rake face, it acts as a cutting edge in place of the actual cutting edge. This is termed as built up edge (BUE).

Popular Answers (1)

A build up edge (BUE) is a zone of hardened material close to the cutting edge and can be observed usually at low cutting speeds. As soon as a critical load is reached the BUE breaks away from the rake face/cutting edge. The process of building up and breaking away is repeated several thousand times per second.

All Answers (14)

A build up edge (BUE) is a zone of hardened material close to the cutting edge and can be observed usually at low cutting speeds. As soon as a critical load is reached the BUE breaks away from the rake face/cutting edge. The process of building up and breaking away is repeated several thousand times per second.

Similar questions and discussions

In orthogonal cutting operation, why thickness of chip after cut is greater than that of the before cut?

What is a reamer used for?

Reamers Provide Precision – As mentioned earlier, reamers are great for machining precision hole diameters. To use a reamer properly, you must first have a pre-drilled hole that’s between 90% and 94% of the final hole diameter.

Is reaming a fast process?

When done correctly, reaming can be a fast and highly accurate operation that results in precision holes.