The bolt slots on
the original welded design were machined features. One of the primary benefits of a
casting is the capability of forming the bolt slots directly and eliminating the machining
requirement.
The bolt slots are critical
features that have to be well aligned to match with the eight bolts on the loader frame.
- The bolt slots are formed in the casting with cores (an insert
made of sand used to form a cavity in the casting) placed in the mold.
The casting engineer
has a choice in the core design for producing the bolt slots. His options are --
- Option A -- Fabricating and positioning a single, small core for each slot --
a total of eight cores in the main mold.
- Option B - Fabricating a single core plate that has 8
slot features incorporated and positioning that single core plate in the mold
Considering the alignment requirement against the cost of a more
complex core, which option would you choose -- A or B! |
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