Calorimetric system for measurement of net power in laser and arc welding and cladding Available to Purchase

The Power Measurement Calorimetric System (PMCS) was developed as a part of a program funded by the Office of Naval Research (ONR) in cooperation with Puget Sound Naval Shipyard - Intermediate Maintenance Facility (PSNS-IMF). The primary objective of the PMCS is to measure the High Power Direct Diode (HPDD) laser beam net power transferred to a substrate (up to 4,000 W). With this information we can ensure reliable and repeatable control of the heat input in a cladding process. The PMCS is designed for users who perform welding/cladding on components that require accurate and repeatable control of heat input, such as critical components made of heat-sensitive steels. In comparison with the popular Seebeck Envelope Calorimeter (SEC), the PMCS is a complete turnkey device that generates data on net power, in watts rather than as a voltage output signal. It takes measurements with production-oriented speed of 3 minutes per measurement (instead of 6 hours). The PMCS can be used for research to determine thermal efficiency of different laser beams (including HPDD, YAG and CO2), using different substrates and filler metals. It can also be used for gas tungsten arc welding. The PMCS measures the net power at conditions very close to those encountered in real welding/cladding using the same base and filler materials, and programming parameters. The PMCS is built as a stand-alone unit and has a built in calibrating system that ensures and maintains high accuracy of power measurements. This paper is a report of interim results of testing the PMCS.