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| INTRODUCTION |
| Brush Wellman Inc.'s beryllium copper alloys are increasingly proving the material of choice in applications spanning the automotive, aerospace, electronics, electromechanical, computer, telecommunications, hydrocarbon, appliance and medical industries. The popularity of these high reliability engineered materials stems from their combination of high conductivity and mechanical strength,
excellent wear and corrosion resistance, non-magnetic characteristics, high fatigue strength and hardness, and their ability to be worked in a soft condition and then hardened by a simple heat treatment. As many applications require machining, the beryllium copper alloys are produced in billet and wrought forms which are readily machinable in all available tempers. Similarly, in applications requiring casting and subsequent machining operations, Brush Wellman manufactures a number of beryllium copper casting alloys specifically engineered for this purpose.
The machining characteristics of the beryllium copper alloys is a function of a given alloy’s temper and form. This report furnishes the information most needed by shops performing the usual machining operations. In doing so, it summarizes current machinability data as developed by Brush Wellman and verified by a number of users with extensive experience in the machining of these materials.
It is important to note that machinability is not actually defined in this brochure and the various alloys and conditions are not rated according to any machinability index. After all, it is the number of machined parts per hour (determined partly by the machining speeds and feeds) which determines the economics of the machining operation. The machinability of a given material is ultimately a function of these factors, additional considerations such as part configuration, dimensional tolerances, and the required surface finish, as well as the skill of the machine tool operator. |
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