Hercules
Hercules:
Outstanding manual ultrasonic evaluation system for spot welds, portable, fit to purpose, and combining the power of a high performance ultrasonic electronics with the most advanced and accurate signal selection and evaluation algorithms. As a unique additional feature, HERCULES operates with durable, easily interchangeable dry coupling ultrasonic probes.
· Increased reliability
· Increased productivity
· Less training requirements
The negative impact of the factors affecting reliability and productivity in manual spot weld inspection is minimized by HERCULES by the larger number of captures (up to 6000 A-scan per minute), the signal recording feature with continuous evaluation and a more clever and complete automatic signal selection and evaluation capability, independent of the quality of coupling and operator’s skill.
HERCULES can evaluate spot welds with two and three sheets, with or without coating and can also be setup to inspect different materials including mild steels, high strength steels, boron steels, aluminium, etc. Attending to user defined quantitative criteria, spot welds are consistently evaluated and classified in different categories: GOOD, THICKNESS OUT OF RANGE, LOOSE, UNDERSIZE (with measurement of the nugget diameter), BURNT, STICK, etc.
Probes with frequencies of 10, 15 and 20 MHz are available as well as different probe diameters. The unique solid interchangeable rubber delay line allows a dry contact test for a larger scope of sheet thicknesses and weld diameters than can be inspected using a traditional bubble probe… and with a much higher mechanical resistance avoiding frequent and time consuming delay replacements.
HERCULES uses a high performance ultrasonic data acquisition board with a high voltage square wave pulser (adjustable pulse width) at up to 2 KHz pulse repetition frequency, with a low noise, high time of flight measurement accuracy receiver. The suitable tuning of the pulser and receiver allows the best signal to noise ratio and resolution when driving a given frequency probe for the specific purpose of the spot weld inspection.
The system allows independent setting up of test parameters for the different spot welds in a part with which a CONTROL PLAN can be programmed to define an inspection sequence including different acceptance criteria, etc. for each one of the suitable spot welds. In any case, ALL the parameters and suitable results including the series of acquired A-scan (up to 6000 per spot weld) can be recorded for off-line evaluation and automatically summarized in a MS Excel file.
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