From Mass Finishing Handbook


The fundamentals of burr technology rely on a few simple concepts:

  1. Burr properties are a function of:

    • material properties

    • machining/blanking process

    • part configuration

  2. Acceptable deburring quality is a function of:

    • burr properties

    • part configuration

    • acceptance standards

    • deburring process parameters

  3. Cost effective deburring is a function of:

    • acceptable deburring quality

    • scheduled quantities

    • cycle time

    • environmental, safety, and health issues

  4. There are five basic approaches to reducing deburring costs:

    • improvement of product design

    • prevention of burrs

    • minimization of burr properties

    • removal of burrs during the machining/ blanking cycle

    • development of innovative variations of existing processes.

These concepts are described throughout 120 pages in Deburring and Edge Finishing Handbook (Gillespie 1999); only those that are directly applicable to mass finishing will be discussed here.


The sixth rule, as noted in Chapter 4, is reiterated here and the next basic consideration is given beneath it, rule #7:

Rule #6: Like deburring and surface finishing, mass finishing will change key part attributes.

Rule #7: Minimizing burr size reduces deburring costs and problems.

Mass finishing can grind off any size burr if it is positioned appropriately and if other side effects are not important. Typically, however, these side effects are important, as mentioned in the previous chapter. Therefore, it is necessary to know how big the burr is before good decisions on economic removal can be made.

Figure 5-1 provides some starting definitions for burr properties. Burr thickness is the most important property and it also is...

Products & Services
Deburring and Deflashing Services
Deburring and deflashing services serve to round sharp edges or corners and remove flash or parting lines from forging, casting or molding operations.
Rotary Burs
Rotary burs are cutting tools with many closely-spaced cutting edges, often with negative rake angle, for finishing or deburring edges.
Deburring and Deflashing Machines
Deburring and deflashing machines remove burrs or dross, smooth or deflash parting lines, round off sharp edges, and radius corners on machined parts, castings, forgings, molded components and welded assemblies.
Brushing Machines
Brushing machines use bristle or wire brushes to deburr, deflash, finish, polish, dedust, and clean surfaces. Brushes are also used to scour or texture surface to simulate wood grains or other patterns.
Robotic Deburring Tools
Robotic deburring tools are robotic end-effectors for removing burrs, flashing, and other unwanted edge properties caused by cutting or machining.

Topics of Interest

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