Generally applied to forming. Creation of a formed feature by angular displacement of a sheet metal workpiece. See also Drawing and Forming.
Refers to surfaces which meet at an angle in different planes.
Acronym for bits into sound.
1 Sheet metal stock from which a product is to be made. 2 Workpiece resulting from blanking operation.
Die cutting of the outside shape of a part.
Leaching of entrapped plating solutions, causing surface discoloration and corrosion.
Blind End Fastener
Internally threaded fastener which is manufactured with one end closed such that, when installed, it forms a gas and moisture resistant seal.
Fastener which is capable of being permanently installed and used in a workpiece with access from only one side.
Rivet which is capable of being installed and used in a workpiece or assembly with access from only one side.
Forming operation in which the punch and the die is closed completely on the workpiece. See Press Brake Chapter.
Out of flatness condition in sheet material commonly known as Oil Canning in which, with the edges of the sheet restrained, the center of the sheet can be popped back and forth but cannot be flattened without specialized equipment. This condition is sometimes inherent in the material as received from the supplier and sometimes the result of multiple punching or forming operations. See chapter on CNC Turret and Laser Fabrication.
Acronym for bits per second. Refers to the rate at which a data communications line can transfer information. Bits per second can be faster than baud rate when data compression is used.
Alloy of copper and zinc.
Fractured portion of the cross section of a cut edge of stock. A condition naturally occurring during shearing, blanking, punching and other cutting operations.
See Micro Ties.
Annealing work in a protective atmosphere to prevent discoloration as the result of heating. In some atmospheres oxides may be reduced.
Brinnell Hardness Testing
A method of testing the hardness of material. This test is usually used on softer materials and castings in which a carbide ball is pressed into the material for a given period of time and then removed. The resulting impression is measured for the width along with a value determines hardness of the material.
Brushing or Etching
Mechanical or chemical cleaning of parts before further processing.
Polishing method employing soft cloth to carry very fine polishing compounds. Burn Mark Heat discoloration created in the contact area of a welding electrode.
Smooth or shiny area above the breakout on a sheared edge. Also called shear or cut band.
Raised, sharp edge inherent in cutting operations such as shearing, blanking, punching and drilling.
Side of the stock on which burrs appear.
Height to which burr is raised beyond the surface of the material.
Condition of burr displacement resulting from mechanical deburring operation.
Edge without sharp protrusions.
Bus Bar Copper
Copper with minor alloying constituents and high conductivity used for electrical applications.