Microwelding


Also found in: Medical.

Microwelding

 

the welding of nonferrous and ferrous metal parts of small thickness (less than 0.5 mm) and cross section (up to 10 sq mm); also, the welding of metal parts to semiconductor crystals. Optical instruments (such as a loupe or microscope) mounted on the welding machine are used in microwelding.

Microwelding may be done by the pressure-contact, electric, electrostatic, cold, ultrasonic, thermocompression, electron-beam, or laser methods, as well as their combinations, depending on the characteristics of the items being welded, and also on technological requirements. It is used in the electronic and radio-engineering industries and in instrument-making.

References in periodicals archive ?
In the case of microwelding, where the welds were much smaller (ranging from 11 to 200 [micro]m than the smallest thermocouple, thermal histories were based on temperature field predictions.
In the case of microwelding of plastics, where the thermal diffusivity is low.
Laser microwelding clearly accommodates the design of medical devices that trend smaller in form and more capable in function.
Table 1: Leading Players in Worldwide Pistons Market (2006E): Market Shares by Company - Mahle, Kolbenschmidt, Federal- Mogul and Others (includes corresponding Graph/Chart) II-4 Piston Rings II-4 Trends in Piston Ring Materials, Designs, and Coatings II-5 Cast Iron Rings Vie with Moly-Faced Ring Set in Late Model Engines II-5 Ring Sets Moves Higher Up II-5 Rings Get Thinner and Smaller II-5 Piston Rings Turn Smoother, Flatter II-5 Piston Rings Coating: A Solution to Microwelding and Groove Pound-out II-5 Engine Valves II-6
Coherent says its high-power F-Package Diode Laser System was selected for Ohio State University's microwelding research because it reportedly offers the highest degree of brightness available in fiber-coupled turnkey laser systems.
The WS4000 series user-configurable workstation is a highly integrated microwelding system that combines power supply, weld heads, motion control and parts handling into semi-and fully automated platforms.
reviews the basics of nanojoining including solid-state bonding and fusion microwelding
Diode Laser Microwelding of Polycarbonate and Polystyrene
Compared to the second quarter ending March 31, 1998, net sales of laser products for cutting and welding applications increased by 16% to $23 million, while net sales of lasers for marking and microwelding decreased by 20% to $8 million, reflecting the weakness in the semiconductor market.
By product line, sales for laser marking and microwelding increased by 19% to $10.
Laser welding has been adopted for manufacturing automotive sensor and actuator housings, as well as microwelding of thin-walled medical tubing.