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How the shield was constructed.
This started with cutting and bending of sheet metal. Once the parts were created they were then welded. To create an entrance for the gas and an exit for the exhaust holes were drilled into the shield. After the holes were created the exhaust pipe was screwed in and the Argon tip was fitted.
Problems with construction:
Construction of the shield went to plan for the most part. There were issues with getting the toaster oven hooked up to the power supply with blowing a fuse. Also with getting the exhaust and Argon tank hooked in time. This meant that an additional furnace was used to get testing data in time for JCATI.
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Cutting Sheet for Sheet Metal below:
Pictures of Argon tank setup
Picture of the Furnace used for initial testing below:
This furnace has a small hole for an Argon hose to go into in the back. This was done from a project last year for heat treating. Additionally this furnace was operated under a ventilation hood.
Initial shield construction
Initially the shield parts were going to be plates that screwed together so the shield could be taken apart. This changed to using sheet metal being bent and welded. This significantly lowered the price from close to 50$ a shield wall to 20$ for the entire shield. Below is the plate drawing that was going to be used.
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