Laser Beam Welding in Vacuum

In the realm of precision welding, Laser Beam Welding in Vacuum stands out for its accuracy and efficiency. The technique is of utmost importance in industries demanding the highest quality joints, such as aerospace, automotive industry, medical technology and many more.

Performing the welding process in a controlled vacuum environment, a high-intensity laser beam melts and joins materials with unparalleled precision. With a minimized heat input, deep and narrow seams are being created.

Requirements

Vacuum sensors must deal with chamber pressures of up to over 400 bar and in some cases a leakage rate of up to 1e-9 mbar l/s must be guaranteed.

It is also crucial to maintain the correct vacuum level in order to prevent contamination and to achieve strong and reliable welds. The achieved vacuum levels must be reproducible to ensure a consistently high quality. Therefore, the vacuum metrology instruments used need to fulfil highest requirements to accuracy and reliability.

By providing precise control and monitoring, vacuum transducers help reducing the need for rework and ensure faster cycle times. This enhances overall process efficiency and productivity.

Suitabel Products

VCR53E: used for absolute pressure measurements in gaseous media in the range of 1.0e-4 1200 mbar. The robust transducer with a platinum-rhodium filament is suitable for many applications. Equipped with a metal sealed piezo/Pirani combination sensor and temperature compensated,it is particularly predestined for laser beam welding applications.

The relatively smooth surface of platinum-rhodium reduces deposits of welding fume emissions and other impurities, thereby ensuring a particularly long service life of the filament. The metal-sealed measuring cell with robust helical filament and the stainless steel flange also contribute to the long service life of the transmitter. The process reliability of laser welding in a vacuum is increased and maintenance costs are reduced at the same time.