Thermal deburring (TEM) is a process of removing burrs caused by production (due to milling, drilling, etc.) from various machine parts. For this purpose, the workpieces are placed in a bell-shaped deburring chamber which is hydraulically closed by a closing plate.

An accurately defined mixture of gases is fed into the deburring chamber via a gas metering system and ignited by a spark. The temperature of the subsequent combustion ranges from 2,500 to 3,300 °C (4,532 to 5,972 °F) and rises above the ignition temperature of the burr. The excess oxygen inside the deburring chamber leads to a chemical reaction which vaporizes the burr completely within 20 ms.

Advantages of Thermal Deburring

The TEM process offers particular advantage of removing internal burrs (e.g., in holes) as well as burrs on external surfaces. The procedure can be applied to various materials like steel, cast-iron, aluminum, or even plastic. The intensity of the deburring can be precisely adjusted by means of the filling pressure and by the excess oxygen inside the deburring chamber. The use of modern control technology guarantees the highest level of process reliability with uniform quality and optimum performance.