| Buckles | (english) Appeaars like a series of waves and are created during rolling as a result of mechanical misalignment or cross-section irregularities in supply coil. |
| Buff | (english) To polish A smooth finish of high luster with a cloth or fabric wheel to which a compund has been added |
| Builtup Plate | (english) "A pattern plate of suitable material, with the cope pattern mounted on or attached to one side; the drag pattern may be attached to the other side or to a separate mounting. See Matchplate " |
| Bull Gear | (english) The large crank gear of a shaper. |
| Bundle | (english) Specific number of sheets which equals 1 unit of production. Number is determined by multiplying sheets/Packages/BUNDLE. For example, an order calls for 112 sheets/package. According to the maximum height allowed for a lift. Therefore, multiplying 15 packages X 112 sheets 3D 1680 sheets/bundle. |
| Burn | (english) 1) Process of cutting metal by a stream of fuel and oxygen, 2) to permanently damage a metal or alloy by heating to cause either incipient melting or intergranular oxidation. |
| Burn-On-Sand | (english) Sand adhering to the surface of the casting that is extremely difficult to remove. |
| Burn-Out | (english) Firing a mold at a high temperature to remove pattern material residue. |
| Burning 2 | (english) Heating a metal beyond the temperature limits allowable for the desired heat treatment, or beyond the point where serious oxidation or other detrimental action begins. |
| Burnishing | (english) Developing a smooth finish on a metal by tumbling or rubbing with a polished hand tool. |