What does it mean to break an edge in machining?

What does it mean to break an 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.

How do you break steel 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 are burrs in machining?

Burrs are an undesired and unavoidable by-product of most conventional manufacturing processes, such as cutting, forming, blanking, and shearing operations, because of the plastic flow of material. A burr is defined as a projection of undesired material beyond the desired machined features (125).

How do you stop chamfer on wood?

A simple shop-made gauge helps you set stops for routed chamfers quickly and accurately. To make one, set up your router with a 45° piloted chamfer bit. Then, rout a chamfer 3″ to 4″ along the edge of a piece of scrapwood, marking the edge of the router base on the piece at your starting point.

How do you remove sharp edges from steel?

The three common methods are:

1. Hand trimming. This uses specialized deburring tools which are like tiny knives you run along the metal edge.
2. Filing, mechanical or rotary. Hand files are those flat blades with rows of tiny teeth.
3. Sanding. This when abrasive paper is rubbed over the edge.

How do you stop sharp edges?

To prevent cuts:

1. Use the right tool for the job.
2. Only use the tool only for the job it was designed for.
3. Educate and train all staff in the safe use of any tool they may use.
4. Inspect the tool before use.
5. Make sure the blade is sharp.
6. Carry one tool at a time, tip and blade pointed down at your side.

What is a burred edge?

A burr is a raised edge or small piece of material that remains attached to a workpiece after a modification process.

What is breakout burr?

Cut-off Burr (or Breakout Burr) This type of burr occurs when there is a separation of the work material before the cut is finished. ISO Finishing specializes in the mass finishing of burr removal with vibratory and centrifugal barrel (high energy) machines.

What is the purpose of a chamfer?

Chamfers are used in furniture such as counters and table tops to ease their edges to keep people from bruising themselves in the otherwise sharp corner. When the edges are rounded instead, they are called bullnosed. Special tools such as chamfer mills and chamfer planes are sometimes used.

What does a chamfered edge look like?

What is a Chamfer. Even though chamfer is similar to a bevel, it connotes cutting, and its shape is slightly different from a bevel. This edge is usually cut at a 45° angle to the adjacent faces. Therefore, the interior of a fully chamfered square would be octagonal.