• Abrasive Lapping Powder / Abrasive Polishing Powder Synonyms:

lapping abrasives, lapping powder, lapping compounds, lapping slurries, nano polishing, nanoabrasives, inorganic lapping powder, polishing powder, inorganic abrasive powders, inorganic abrasive slurries, two-piece lapping powder, nano lapping compounds, polishing compounds,

• Abrasive Lapping Powder / Abrasive Polishing Powder Description:

a) Lapping is a machining operation, in which two surfaces are rubbed together with a fine abrasive between them, by hand movement or by way of a machine.

b) This can take two forms. The first type of lapping (traditionally called grinding), typically involves rubbing a brittle material such as glass against a surface such as iron or glass itself (also known as the "lap" or grinding tool) with an abrasive such as aluminum oxide, emery, silicon carbide, diamond, etc., in between them. This produces microscopic conchoidal fractures as the abrasive rolls about between the two surfaces and removes material from both.

c) The other form of lapping involves a softer material for the lap, which is "charged" with the abrasive. The lap is then used to cut a harder material—the workpiece. The abrasive embeds within the softer material which holds it and permits it to score across and cut the harder material. Taken to the finer limit, this will produce a polished surface such as with a polishing cloth on an automobile, or a polishing cloth or polishing pitch upon glass or steel.

d) Surface Improvement Technology:

Surface improvement technology, as it is applied to metal removal, has grown substantially in the past few years. Tighter tolerances, new workpiece materials, and new and improved abrasives are the main reasons for this growth. This type of surface finishing (metal removal) has several names describing very different processes. However, they all have one common function; all are low-velocity abrading processes using lower cutting speeds (compared to grinding) and lower pressure to minimize heat, resulting in excellent surface, size, and geometry control.

 •Polishing is the use of abrasives to create a smoother surface with little, if any, geometry improvements (seal areas, low loading-bearing areas).

 •Lapping is the process of folding the workpiece material. It incorporates a loose abrasive for very fine surface finish and small amounts of stock removal. (Generally used on flat applications.)

 •Honing is generally associated with inside diameter surface finishing. It uses abrasives to improve surface finish and geometry characteristics such as roundness, taper, and sizing. (High wear areas and applications needing close tolerances.)

 •Superfinishing generally incorporates vitrified abrasive products such as diamond and CBN. It applies a light pressure with a high reciprocating action to achieve improved surface finish and geometry characteristics (outside diameter applications with high load areas and tight tolerances).

 •Micro-finishing has grown significantly in the past few years. Generally associated with abrasive tape as the media, it has replaced most polishing applications where high loads and tight tolerances are required.

Other surface finishing methods such as brushing and buffing improve the workpiece appearance and sometimes are incorporated with other processes to enhance results. These processes have deviations within their category which allow varying process results.  

• Abrasive Lapping Powder / Abrasive Polishing Powder Chemical Property Options Readily Available:

a) Alumina powder

b) Aluminum oxide powder

c) Boron carbide powder

d) Cerium oxide powder

e) Diamond powder

f) Emery powder

g) Garnet powder

h) Iron(III) oxide powder

i) Nanosponge

j) Silica, precipitated powder

k) Silicon carbide powder, green

l) Tin dioxide powder

• Abrasive Lapping Powder / Abrasive Polishing Powder Physical Properties Available:

 Low-micron, sub-micron and nanomater sized particles and slurries

• Abrasive Lapping Powder / Abrasive Polishing Powder Typical Applications:

Typical applications are for the lapping of carbides, ceramics, very hard tool steels, machine spindles, bearings, dies, precision tools, hydraulic valves, injectors, spools, bodies, automobile valves, gears, blade sharpening, and some precision lapping for electronic applications.

• Abrasive Lapping Powder / Abrasive Polishing Powder Packaging:

 Jars, drums or to customer specification

• Abrasive Lapping Powder / Abrasive Polishing Powder TSCA (SARA Title III) Status:

 Varies. For further information please call the E.P.A. at +1.202-554-1404

• Abrasive Lapping Powder / Abrasive Polishing Powder CAS Number:

 Varies

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