Molding with a three part flask

Duration: 35 min

Year Published: 1945

Creator: Office of Education (Department of Health, Education, and Welfare)

Format: 16mm

Color: B&W

Sound: Optical sound

Description: Shows how to use a deep follow board; the technique of facing, ramming, and venting a deep green sand core; how to use a cheek in a three-part flask; and the purpose and method of step-gating.

Metadata Source:3434 U.S. Government Films