Critical welding parameters

Fig. 12. (a) Schematic of microlens array used in combinatorial JKR adhesion test with two parameters varying along orthogonal axis, (b) Experimental results from combinatorial JKR adhesion test displaying thickness dependence of critical welding temperature for polystryrene self-adhesion. Weld spots are visible features in image. The two isolated data points were collected from independent adhesion tests. Edges of microlens array are indicated by solid black lines. 

Once the critical processes are identified, you can predict their performance by identifying the parameters that affect them. Again, we identify only two parameters that affect the caliper-welding process strength and... 

Criticality was first achieved on 3 March 1974. Physics parameters for the core and for the reactivity effectiveness of, and interactions between, the control and shut-off rods agreed with prediction within the expected uncertainties. The hot dynamic test was completed in June, when a small sodium leak was detected at a butt-joint of piping in a leak-jacketed section of one of the secondary circuits. It was found to be due to a poor quality repair of a construction weld defect and was satisfactorily repaired in situ. 

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