Glossary “butt weld” Definition:
A type of weld that joins two pieces of metal by fusion.
b
bus bar
Glossary “bus bar” Definition:
A common electrical connection to which all of the fuses in the fues box are attached
bush
Glossary “bush” Definition:
Acronym form of Bushing
bushing
Glossary “bushing” Definition:
Any sleeve, metal or rubber, inserted into a bore to serve as a bearing.
burnback
Glossary “burnback” Definition:
Occurs in MIG welding when the electrode wire melting rate is faster than the wire feed speed.
burnish
Glossary “burnish” Definition:
To smooth or polish by using a sliding tool under pressure.
burnishing
Glossary “burnishing” Definition:
Process by which parts become worn. “line burnishing” is often seen on bushings and pump covers.
burnt
Glossary “burnt” Definition:
Permanently damaged material caused by heating conditions producing incipient melting or intergranular oxidation.
burr
Glossary “burr” Definition:
A feather edge left on metal after being cut or filed.
bus
Glossary “bus” Definition:
A common conductor or group of conductors for one or more signals. Also used to distribute non-signal power and ground throughout a system (power bus).
bus (+)
Glossary “bus (+)” Definition:
Data Link Connector
bus (-)
Glossary “bus (-)” Definition:
Data Link Connector
burn through
Glossary “burn through” Definition:
Hole caused by excessive heat buildup, which melts the base metal, allowing it to fall out of the weld joint.
burn time
Glossary “burn time” Definition:
Time required for a given amount of air/fuel mixture in the combustion chamber to burn.
burn test
Glossary “burn test” Definition:
Test that involved using a flame and the resulting smoke was used to determine the type of plastic. This test is no longer recommended.
bumper cover
Glossary “bumper cover” Definition:
Flexible plastic cover that surrounds a bumper structure. Sometimes part of a fascia.
bumper shock absorbers
Glossary “bumper shock absorbers” Definition:
Part used to absorb some of the impact during a collision and reduce damage during low speed impacts.
bumpers
Glossary “bumpers” Definition:
Part designed to withstand minor impact without damage. Mounted and the front and rear of a vehicle.
bumping hammer
Glossary “bumping hammer” Definition:
Hammer used to bump out large dents.
Bureau of Automotive Repair (BAR)
Glossary “Bureau of Automotive Repair (BAR)” Definition:
A state agency that regulates the auto service and repair industry in California.