Downloaded from https://www.everyspec.com APPENDIX C MIL-STD-31000A C.7.5.11 Tiny Round Faces (G-FA-CR) Definition: A set of connected faces are defined on a surface with an extremely small radius of curvature. Measurement: Smallest radius of curvature in any parametric direction along the underlying surface. Effects of condition on CAD data quality for manufacturing: Some material removal machining processes are unable to accurately produce geometry with a small radius of curvature, thereby requiring a process which is more complex and expensive. Recommended correction: Increase the radius or replace the round with a sharp edge. C.7.5.12 Tiny Hole Faces (G-FA-TE) Definition:
A set of connected faces which represent a hole are defined on a surface with an extremely small radius of curvature. Measurement: Diameter of the hole. Effects of condition on CAD data quality for manufacturing: Some material removal machining processes are unable to produce a hole with a small diameter, thereby requiring a process which is more complex and expensive. Recommended correction: Increase the hole diameter or remove it from the product definition. C.7.6. Shell criteria. C.7.6.1. Large face gap (G-SH-LG). Definition: Excessive distance between the boundaries of adjacent faces (G 0 discontinuity) Effects of condition on CAD data quality: Design and drafting:
Possible loss of shell topology leading to various errors and instabilities 114