In this paper we compare welds in three different platinum alloys, produced with three different welding techniques: conventional welding, laser welding and spot welding. The welds joining cold-rolled bars were performed by jewellers operating in their own workshops. Visa mer Microhardness was measured with a Zwick microhardness tester and Vickers indenter. Figure 2 and Figure 3 show the effects of welding on the microhardness … Visa mer Etching showed that for Pt-5% Ru and Pt-5% Cu, both the laser and spot welds had local recrystallisation only in the immediate vicinity of the welds. The cold … Visa mer Scanning electron microscopy with a Kevex energy-dispersive X-ray analysis system on a Leica S440 microscope was carried out principally to assess the effect … Visa mer WebbPlatinum emits intensely bright light when heated to soldering and welding temperatures. Eye protection must be worn at these times. This welding lens is a shade #7. When …
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Welding of Platinum Jewellery Alloys
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