Weld thermal simulator
Abstract
The construction of a resistance heated weld thermal simulator unit (135 kVA) is described in detail. The temperature control eliminates effectively all disturbing interferences arising from the heating circuit. Aspects of temperature measurements and of temperature distributions in heated samples are discussed. The reproducibility of the preprogrammed temperature cycles is very good and heating rates up to 1000 K/s can be achieved. The principal application of the unit is the simulation of weld processes in order to study solid state transformations within metallic materials, e.g. the development of heat affected zones.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- April 1980
- Bibcode:
- 1980STIN...8233583P
- Keywords:
-
- Electrical Resistivity;
- Feedback Control;
- Heating Equipment;
- Temperature Distribution;
- Thermal Simulation;
- Weldability;
- Circuits;
- Differential Equations;
- Steady State;
- Temperature Measurement;
- Engineering (General)