Burr (edge)

<p>A burr is a raised edge or small piece of material that remains attached to a <a href="/facts/Workpiece/ws4oSvXv">workpiece</a> after a modification process. It is usually an unwanted piece of material and is removed with a deburring tool in a process called deburring. Burrs are most commonly created by <a href="/facts/Machining/Yrjfj6IV">machining</a> operations, such as <a href="/facts/Grinding_(abrasive_cutting)/r60I0Y5Y">grinding</a>, <a href="/facts/Drilling/gdr632GJ">drilling</a>, <a href="/facts/Milling_machine/PVXTgNyz">milling</a>, <a href="/facts/Engraving/0hCX4flU">engraving</a> or <a href="/facts/Turning/oH6EzR1e">turning</a>. It may be present in the form of a fine wire on the edge of a freshly sharpened tool or as a raised portion of a surface; this type of burr is commonly formed when a <a href="/facts/Hammer/bct4q0y4">hammer</a> strikes a surface. Deburring accounts for a significant portion of manufacturing costs.
</p><p>In the <a href="/facts/Printmaking/9maDzuae">printmaking</a> technique of <a href="/facts/Drypoint/gFwYJyjg">drypoint</a>, burr, which gives a rich fuzzy quality to the engraved line, is highly desirable—the great problem with the drypoint medium is that the burr rapidly diminishes after as few as ten impressions are printed.
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Burr (edge) open-in-new

Burr (edge)