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According to manufacturer Kennametal Extrude Hone, the enhanced TEM S250 deburring machine provides additional value and production flexibility at a competitive price. New features on the redesigned machine include modular construction and a more compact footprint to support lean manufacturing as well as new add-on options that facilitate customization.
The machine incorporates the company’s Thermal Energy Method (TEM) technology, which uses heat to remove internal and external bores and flashings from metallic and die-cast workpieces after machining without compromising the integrity of other surfaces. During the TEM process, a fuel gas mixture, typically consisting of oxygen with natural gas, methane or hydrogen, is introduced under pressure to the deburring chamber and ignited by a spark plug. The mixture combusts and releases a 20-millisecond-long, high speed thermal wave that burns away burrs, including those in difficult-to-reach locations.
The machine’s combustion chamber is available with a standard height of 150 mm, while an “extended chamber” option measures 300 mm high to accommodate larger workpieces. The two-piece deburring chamber is water-cooled for continuous operation, while the machine frame is designed for stability to provide fatigue strength and performance. The closing pressure of the combustion chamber is 250 US tons (2,250 kN), and maximum chamber fill pressure ranges from 232 to 348 psi, depending on the chamber diameter. Despite its small footprint, the machine can accommodate both small batches and mass-produced workpieces, the company says. Other features include integral fault diagnostics as well as ergonomic enhancements that simplify loading/unloading, enhance accessibility, address operator safety concerns and facilitate quick setup and precise adjustment of process parameters, the company says.
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