Harvey Tool Co. LLC has released its fall 2011 catalog, which provides information about 400 new tools. That includes additional sizes and reaches in expanded product lines and brand new tools. The company reports that one new tool is a miniature multiple-flute, high-helix endmill for finishing aluminum alloys, copper, brass, bronze and other nonferrous materials.
Available as small as 0.015", the finisher has a variable helix and variable index to overcome harmonics and reduce chatter. In addition, the tool imparts a fine surface finish and effectively evacuates chips, according to the company. The tool's TiB2 coating has a low affinity to aluminum, helping to prevent built-up edge and chip packing and extending tool life. The endmill is also available uncoated.
Related Glossary Terms
Substances having metallic properties and being composed of two or more chemical elements of which at least one is a metal.
- aluminum alloys
Aluminum containing specified quantities of alloying elements added to obtain the necessary mechanical and physical properties. Aluminum alloys are divided into two categories: wrought compositions and casting compositions. Some compositions may contain up to 10 alloying elements, but only one or two are the main alloying elements, such as copper, manganese, silicon, magnesium, zinc or tin.
- built-up edge ( BUE)
built-up edge ( BUE)
1. Permanently damaging a metal by heating to cause either incipient melting or intergranular oxidation. 2. In grinding, getting the workpiece hot enough to cause discoloration or to change the microstructure by tempering or hardening.
Condition of vibration involving the machine, workpiece and cutting tool. Once this condition arises, it is often self-sustaining until the problem is corrected. Chatter can be identified when lines or grooves appear at regular intervals in the workpiece. These lines or grooves are caused by the teeth of the cutter as they vibrate in and out of the workpiece and their spacing depends on the frequency of vibration.
Milling cutter held by its shank that cuts on its periphery and, if so configured, on its free end. Takes a variety of shapes (single- and double-end, roughing, ballnose and cup-end) and sizes (stub, medium, long and extra-long). Also comes with differing numbers of flutes.