The machining time estimates were found from MasterCAM by
backplotting the functions for creating each piece of the mold for every part. The
entire machining process for the injection molded parts is relatively short
compared to the thermoformed parts and is accomplished largely on the lathe
with the exception of the drilled ejector pin holes. The longer manufacturing
time for the thermoformed parts is accounted for by the fact that more
intricate milling operations are necessary for the thermoformed designs. However,
the actual machining appointment may take longer due to potential edits in the
process plan. Thus far, fabrication of the molds has run close to as predicted
and no changes in the schedule have yet been made. The process optimization
will be performed by testing the thermoforming of the part with the mold to
determine if any setting changes need to be made before the high volume
production run. This optimization process will take about 1 hour. The final
production run will likely take about 2 hours to injection mold 100 parts for
the core, 1 hour for the ring, and 2.5 hours for each of the thermoformed parts.
Team Batarang will be able to get a more accurate time after optimizing the
machine settings for improving the rate.
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