What is a break edge in machining?

The sharp edges of most precision machined surface are “broken” through a process called “edge break.” Edge break is accomplished by rounding off the corner, or by machining a flat “chamfer” to reduce the sharpness of the edge. The process is intended to ensure part longevity, safe handling, and proper performance.

What is a break edge?

A break edge means the removal of material, usually in the form of a chamfer or radius to remove the sharp edge. Machining a surface will often leave a corner which can be dangerous for both the part and the part handler.

How do you remove sharp edges?

The 5 most common ways of removing burrs and edges are vibratory finishing, barrel tumbling, manual deburring, thermal energy deburring, and electromechanical deburring. Manual deburring: A skilled craftsperson can remove burrs by hand using specialized manual deburring tools.

What is considered a sharp edge?

Sharp edge: A sharp edge is one that, for practical purposes, is not rounded and has the potential to cut and even completely sever most types of lifelines. The ANSI standard for sharp edges, for example, involves testing the fall arrest device’s lifeline over a piece of steel bar with a radius of no more than .

How does sharp edge tester work?

When testing with the force the tester applies, a dangerously sharp edge will cut through the two outer layers of the sensing tape on the Tape Cap exposing the black layer of tape (bottom layer). This means that your product does not meet UL’s sharp edge safety testing standards.

What is the radius of a sharp edge?

Sharp corners should be rounded with a radius measuring between 25 and 60% of the nominal wall thickness. If the part has a load bearing function, then the upper end is recommended. A minimum inner corner radius of 0.5 mm is suggested.

How should burrs be removed?

Remove a Burr after Drilling Process A burr generated during a drilling or tapping process is removed using a bigger drill. A little burr can be easily removed by rotating the drill bit by hand. Larger burrs may need to be removed by mounting the drill bit in a drilling machine.

How do you round off metal edges?

Step 1 – Secure the sheet metal to prevent slipping. Step 2 – Use your die grinder with a mounted point (we like shape W222) and simply run the point over the edge of the sheet metal. This process will round the edge of the metal and create a groove in the point. Step 3 – Repeat.

What is a break edge? A break edge means the removal of material, most often in the form of a chamfer or radius to remove a sharp edge. Machining of a surface will often leave a corner which can be dangerous for both the part and the part handler. The break edge is usually specified as a maximum value or with no value at all.

How do you create a break edge on a piece of metal?

Because metal tends to be more durable, you have more choices for creating a break edge on your piece of metal. A chamfer deburring tool which is a specialty tool designed to remove burrs from the edges of parts To create a break edge on a piece of glass, use one of the following:

What is corner breaking in machining?

Machining corners between two major elements of a contour is called corner-breaking. Breaking sharp corners between two elements of a contour typically applies to a 90 corner between a face (shoulder) and a diameter, or between a diameter and a face. There are two general categories: Defined corners. Undefined corners.

How do I add edge breaks to my machined drawings?

Adding callouts and notes specifying proper edge break processes on your drawings doesn’t take much effort. As for edge breaks on the flanges of a machined I-beam, the easiest, most consistent, and reliable method would be to program the machine to run a chamfering cutter along the flange edge as a finish operation.