By Aiden ArmstrongFabricators and finishing shop technicians in Grand Rapids know what their customers want. They expect components that are completely lacking in burrs. While aggressive deburring can accomplish this, it may also produce dings and/or scratches. This suggests an alternative approach – a non-conventional one – thermal deburring.
What Is Thermal Deburring (ETM)?
Michigan is the home of the originator of the Thermal Energy Method (TEM). Surftran (currently Extrude Hone Surftran), both invented and patented this method approximately 45 years ago. The process involves placing the components in baskets or other containers within a sealed, thick-walled, pressurized combustion chamber. The mixture of gases, e.g. pure oxygen, within the chamber engulfs the parts including even the most minuscule corners and crevices. Igniting the mixture creates combustion. This generates the heat that oxidizes the burrs gently and effectively.
When to Use TEM
TEM is more suitable for bulk deburring and the removal of metal contaminants. Finishers utilize the process when customers request:
Consistency
Uniformity
Controlled material removal
Non-abrasive method
Burr removal of both interior and exterior surface
Speed
Customers from Grand Rapids consider this method the best option when they need the removal of burrs without scratching or denting the surface of their parts.
Other Factors to Consider
As is the case with the purchase and installation of all finishing equipment, the primary question concerns cost. TEM does require a significant initial financial investment. However, when production, labor and material come into consideration, this process truly is cost-effective.
Thermal Deburring
Thermal deburring is an excellent way to remove burrs without creating additional issues such as dents and scratches. However, as finishers in Grand Rapids are quick to point out, it is not always the best method to deburr a part. It is important to consult the experts in this field before deciding whether TEM or conventional processes are the most effective, efficient and suitable means of addressing burrs on components.
