Tuesday, 21 May 2024, 6:58 PM
Site: IMI eLearning
Course: IMI eLearning (IMI eLearning)
Glossary: Automotive Glossary
B
Back Plate(1) Non-rotating plate carrying the shoes of a drum brake. (2) Metal member carrying friction material of the disc brake pad. |
Back PressureThe pressure build-up in the exhaust caused by the resistance to exhaust flow by pipe diameters and muffler baffles. Used in design to balance an exhaust to an engine. |
Back-SandingTechnique of sanding a surface to taper the paint film away from the metal repaired area. |
BackfireCombustion of fuel in the intake or exhaust resulting in a loud explosive noise. |
BackingThe base material of flatting paper onto which abrasive grains are coated. For masking tape, the backing is the paper section without the adhesive. |
Backing PadA supporting pad for abrasive disc and/or polishing pads that is attached to a polishing mop or a DA sander. In the compounding, glazing or polishing operation, a foam or wool polishing or glazing pad is attached on top of the backup pad. In dry sanding operations an abrasive disc is attached to the face of the pad. |
BacklashThe clearance between two components, usually used to measure the running clearance of gear teeth. |
BackupA second copy of work in case the original is damaged or destroyed. Should be stored away from the computer. |
BaffleA part fitted behind the air cap in a spray gun to direct the air stream and reduce air turbulence. |
BakingApplication of heat to cure and dry a coating. In automotive refinishing, baking is used to speed up the drying of air-drying finishes and is sometimes called force-drying. The metal temperature in refinish baking usually does not exceed 80°C (180°F). |