A prickly seed vessel. See Bur, 1.
The thin edge or ridge left by a tool in cutting or shaping metal, as in turning, engraving, pressing, etc.; also, the rough neck left on a bullet in casting.
A thin flat piece of metal, formed from a sheet by punching; a small washer put on the end of a rivet before it is swaged down.
Portable power mill for cutting metal. Alternately, a rough piece remaining on a cut edge.
a rough or prickly propagule consisting of a seed or fruit and associated floral parts or bracts.
A rough raised edge which may be left on an object after cutting or filing.
Particular varieties of seed heads found in wool and other fibres such as clover burr.
The ridge of metal raised on either side of a line incised by a burin or drypoint needle. The rough surface on a mezzotint is also called a burr. See steel facing.
The sharp edge left on metal after cutting or punching. or A rotary cutting tool designed to be attached to a drill.
An electrical drilling tool for enlarging atrephine (circular) hole in the cranium.
When using a drypoint needle or other engraving tool to draw directly into a metal plate, small, fine pieces of metal are raised up on both sides of the scored line. This burr holds additional ink during the printing process and gives the lines velvety of fuzzy texture. Burr is very delicate and consequently is easily worn down during the pressures of the printing process. Early pulls or impressions taken from such plates are characterized by rich burr. In the case of Old Master Prints especially, the quantity and evidence of burr can sometimes be used as an aid in determining how early the impression was pulled.
A rough edge or area remaining on material, such as metal, after it has been cast, cut, or drilled. Also referred to as a barb.
The material that is thrown up on either side of the line carved with the burin.
The metal ridge thrown up when the burin or drypoint tool is raked across the metal plate. This burred edge is much appreciated for its rich and highly expressive printed result. Unless the plate is steel-faced, the burr on copper will quickly flatten and erode after 20-30 impressions. Also, the roughened area produced by the rocker tool in the mezzotint.
rough projection left on a workpiece after drilling or cutting
rotary file for smoothing rough edges left on a workpiece
a natural occurrence in steel when one bevel is ground until it meets another
a rough projection on a work-piece that is created during various machining and casting operations
a rough whirring-like sound made when pronouncing the letter 'r'
a splinter that has not yet left its mother wood and imbedded itself in your flesh
The burr is a rough ridge or protrusion that may be found on a knife edge after grinding on a stone. - Close
the sharp, extended edge of a steel strip created by slitting or blanking operations
The metal which is raised above the surface of a metal plate when it is incised. It is particularly evident in drypoint, where the burr enhances the effect created by the incised line.
A turned-over edge on work resulting from cutting. Also Burl
1: an adherent fragment of parent material at a component edge. In leadframes, due to the stamping operation, the metal burr may be in a horizontal or vertical direction relative to the surface. In ceramic packages, this type of characteristic is called a fin. 2: in cerpack packages, a fragment of excess material or foreign particle adhering to the surface.
Snag or sharp nick in a sword blade which needs to be filed and sanded before blade can be safely swallowed
A rough edge or ridge left by a tool in cutting metal. The term is sometimes used for a nut.
Ridge of metal created alongside a scratched line. Or spring-like cutting of metal removed from a plate by the burin.
A ridge left on the outside copper surface after drilling.
A ridge on the edge of strip stainless steel that is caused by cutting operations, including blanking, trimming, shearing or slitting.
As a burin digs into a plate, it throws up small shavings of metal, leaving behind a minute ridge, or BURR, on each side of the furrow.
A thin ridge of roughness left by a cutting operation such as slitting, trimming, shearing, blanking, or sawing.
A minute metal flap formed on the opposite side of an edge during grinding or honing. A burr indicates that abrasion has taken place at the arris.
A sharp, projecting edge or point sometimes left when cutting metal.
A localized point of roughness, or a thin ridge or protrusion, produced by mechanical damage or in machining the thread or chamfer.
Raised, sharp edge inherent in cutting operations such as shearing, blanking, punching and drilling.
A subtle ridge on the edge of strip stainless steel resulting from cutting operations such as slitting, trimming, shearing, or blanking. For example, as a stainless steel processor trims the sides of the sheet stainless steel parallel or cuts a sheet of stainless steel into strips, its edges will bend with the direction of the cut.
The thin ridge or rough-ness left by a cutting oper-ation such as slitting, shearing, blanking, or sawing. See Figure 5 below. Exaggerated for Illustration.
Related Article A raised ridge of metal used on a scraper to remove wood.
The ridged metal raised on both sides of the lines that are needle-cut in the dry point process. In mezzotint, burr is the surface of the plate when worked with a doctor.
a rough edge or ridge left on metal or other materials caused by cutting or drilling.
A leftover ridge on the edge of metal caused by cutting operations, such as trimming, slitting and shearing.
A thin ridge, raised sharp edge, or roughness left on forgings or sheet metal blanks by cutting operations such as slitting, shearing, trimming, punching, blanking, or sawing.
The very subtle ridge on the edge of strip steel left by cutting operations such as slitting, trimming, shearing, or blanking. For example, as a steel processor trims the sides of the sheet steel parallel or cuts a sheet of steel into strips, its edges will bend with the direction of the cut (see Edge Rolling).
In prints and drawings, the textured, raised edge of a mark made by a burin (graver) that produces a soft line when printed. Burrs may be removed with a scraper.
A sharp, roughened, in-turned edge on a piece of pipe which has been cut but not reamed.
Burrs are small cutters used in die grinders, rotary tools or dentist's drills. The name may be considered appropriate when their small sized head (3 mm diameter shaft) is compared to that of a burr seed.
In engineering, a burr refers to the raised edge on a metal part. It may be present in the form of a fine wire on the edge of a freshly sharpened tool or as a raised portion on a surface, after being struck a blow from an equally hard, or heavy object.