From MeritBadgeDotOrg
| Foundry Practice Merit Badge
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|
| Field of study:
| Farming
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| Status:
| Discontinued
| BSA Advancement ID:
| unavailable
|
| Created:
| 1923
| Original/New/Replaced:
|
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| Discontinued:
| 1952
| Replaced by:
|
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| Foundry Practice is a discontinued merit badge. Foundry Practice was first offered in 1923. It was discontinued in 1952.
|
Merit badge requirements
- 1. (a) Make a freehand working drawing of a flask used for a bench moulding in the foundry; (b) describe same flask.
- 2. (a) Show by section sketch a mould of a plate 12" long, 6" wide, 1" thick with gate and vents; (b) construct the mould.
- 3. Make a perspective sketch of a pulley pattern 6" diameter, 2" face, the center to be cored 2" by use of core prints.
- 4. Construct a wood pattern and core box as per the sketch outlined in Requirement 3; use shrinkage rule for the metal used, gray iron, bronze or brass. Change measurements to allow for finish all over casting and proper draft for removing pattern from mould.
- 5. Describe how the cupola operates.
- 6. (a) Describe a process for cleaning one of the above castings when removed from the mould; (b) clean one of the above castings.
- 7. Describe the properties in sand that are best suited for foundry use and tell how to prepare sand for use.
- 8. Tell what important safety precautions should be taken to protect the workers in a foundry - by the employer - by the employee.
Note: In each case when a mould is required the pattern must first be made.
Notes
External links
