The process of rubbing two surfaces together with an emulsion of oil and abrasive powder to obtain precise dimensions , flatness and/or roundness, and unparalleled quality of surface finish.
A process used in the manufacturing of 100% cotton yarn where a number of ends of sliver are made into a lap or sheet for the combing process.
A method of finishing metal to produce a very smooth, highly accurate surface.
wet and dry layers overlap during painting. Usually caused by: inadequate stirring and improper thinning; too much heat or wind during application; extremely porous surface; or painting too large an area at one time.
Lapping is a process that sloughs off material--here, silicon. Lapping is accomplished on a "lap" (no, not what Fido likes to sleep upon). Think of a lap as a round table that rotates as you sand it down (see a picture of a lap at top left). Except, it's not the table you are sanding but a wafer stuck to the table top. And just like the table, you want the wafer to be very flat and uniform. The picture shows the back of a lapped (left) and unlapped (right) wafer.)
A process used to improve the surface finish of a heat sink. This consists of sanding the surface to reduce its roughness and improve contact with the die.
The practice of sanding down the surface of a microprocessor package to make it flatter than it was initially in order to make better contact with a heatsink....
Rubbing two surfaces together, with or without abrasives, for the purpose obtaining extreme dimensional accuracy or superior surface finish.
smoothing a metal surface to high degree of refinement or accuracy using a fine abrasive.
A material removal process using loose abrasives and a fluid where parts are processed between two large flat lap plates to achieve very flat surfaces and extreme fine finishes. In contrast to grinding and honing, lapping is minimal material removal, forces are very light and parts move freely between lap plates. Finishes are measured in micron and nanometer ranges. The term is also commonly used for processes that produce very fine finishes using loose abrasive grains. Historically lapping means a process for the ultimate refinement of geometry or surface finishes using very fine abrasives to produce extremely accurate components. The process is being replaced by fine grinding.
A process that polishes the ball to a shiny finish and to the exact size required. Micrometer - A tool to measure the accuracy of the ball size; any of various devices for measuring minute distances; also called a mike, a precision instrument with a spindle moved by a finely threaded screw; for the measurement of thicknesses and short lengths, commonly used by machinists and inspectors.
The process of repeatedly passing a lead 'slug' (usually a wadcutter bullet mounted on a cleaning rod) through the bore of a gun barrel in order to lap, or polish it. The polishing is assisted by means of dipping the slug in a mild metal polish, such as Brasso. This method is used to remove rough spots from the bore which can give rise to leading: see Leading below.
The process of using a rotating disk with an abrasive to grind or polish metal or glass.
Moving a quartz crystal slab over a flat plate on which a liquid abrasive has been poured, to obtain a flat polished surface or to reduce the thickness a carefully controlled amount.
Lapping is a machining operation, in which two surfaces are rubbed together with an abrasive between them, by hand movement or by way of a machine.