Related Glossary Terms
- Brinell hardness number ( HB)
Brinell hardness number ( HB)
Number related to the applied load (usually, 500 kgf and 3,000 kgf) and to the surface area of the permanent impression made by a 10mm ball indenter. The Brinell hardness number is a calculated value of the applied load (kgf) divided by the surface area of the indentation (mm2). Therefore, the unit of measure of a Brinell hardness number is kgf/mm2, but it is always omitted.
Substances having metallic properties and being composed of two or more chemical elements of which at least one is a metal.
Cutting tool materials based on aluminum oxide and silicon nitride. Ceramic tools can withstand higher cutting speeds than cemented carbide tools when machining hardened steels, cast irons and high-temperature alloys.
- cubic boron nitride ( CBN)
cubic boron nitride ( CBN)
Crystal manufactured from boron nitride under high pressure and temperature. Used to cut hard-to-machine ferrous and nickel-base materials up to 70 HRC. Second hardest material after diamond. See superabrasive tools.
- die casting
Casting process wherein molten metal is forced under high pressure into the cavity of a metal mold.
Operation in which a tool with numerous small teeth is applied manually to round off sharp corners and shoulders and remove burrs and nicks. Although often a manual operation, filing on a power filer or contour band machine with a special filing attachment can be an intermediate step in machining low-volume or one-of-a-kind parts.
Machining operation in which material is removed from the workpiece by a powered abrasive wheel, stone, belt, paste, sheet, compound, slurry, etc. Takes various forms: surface grinding (creates flat and/or squared surfaces); cylindrical grinding (for external cylindrical and tapered shapes, fillets, undercuts, etc.); centerless grinding; chamfering; thread and form grinding; tool and cutter grinding; offhand grinding; lapping and polishing (grinding with extremely fine grits to create ultrasmooth surfaces); honing; and disc grinding.
Tooling usually considered to be a stationary apparatus. A jig assists in the assembly or manufacture of a part or device. It holds the workpiece while guiding the cutting tool with a bushing. A jig used in subassembly or final assembly might provide assembly aids such as alignments and adjustments. See fixture.
Finishing operation in which a loose, fine-grain abrasive in a liquid medium abrades material. Extremely accurate process that corrects minor shape imperfections, refines surface finishes and produces a close fit between mating surfaces.
Abrasive process that improves surface finish and blends contours. Abrasive particles attached to a flexible backing abrade the workpiece.
Titan Tool Supply, Buffalo, N.Y., offers a range of deburring and microfinishing tools, including grinding and bottoming pins, grinding wheels, polishing products, miniature diamond files, Swiss needle files, diamond needle files, scrapers and blades and Uni-Vise blade and file handles.
Deburring tools: The Titan line includes tools for deburring internal and external surfaces, holes, edges, corners and slots. They are available in a variety of holders, blades and handles.
Jig and internal grinding and bottoming pins: Titan diamond and CBN internal jig grinding pins are available in both plated and resin bond versions. The line also includes diamond and CBN bottoming pins used for bottom and shoulder grinding as well as diamond ball grinding pins.
Grinding Wheels: Titan's specialty miniature plated and sintered diamond grinding wheels are used for finishing hardened carbides, ceramics, hardened steel alloys and glass.
Hand stones and polishing paste: Tetrabor (boron carbide) polishing compounds and polishing stones are for lapping carbide dies and blanks; polishing plastic molds and die casting dies; lapping gages and holes in die work and die faces; and lapping cutting tools to improve wear life.
Miniature diamond files: Titan diamond miniature files with 3mm-dia. shanks are used by hand and in air, flexible-shaft and ultrasonic reciprocating die filing machines. They can polish plastic molds and carbide dies.
Swiss needle files: These chromium-steel files are made in Switzerland by Grobet & Vallorbe.
Diamond needle files: Titan Diamond HB full-size and diamond needle files are made with a hard-nickel bond on a hardened steel blank for long life. They are for use on carbide, ceramics, hardened steel and alloys.
Scrapers and blades: These tools are made of hardened, high-speed steel and are wear resistant and accurately ground.