Table of Contents
What is RMB GD?
Regardless of Materials Boundary GD Training Definitions Regardless of Material Boundary – (RMB) – This is the condition where the stated tolerance limits must be met irrespective of as built datum feature size or location.
What is MMB GD?
The goal of this blog post is to present the maximum material boundary (MMB) concept in GD applications. The maximum material boundary concept is simply the use of a maximum material condition on a datum feature, as shown in Figure 1 (the annotation B(M)).
What is FOS GD?
In GD the term feature-of-size (FOS) refers to any surface, or set of parallel surfaces associated with a size dimension. Specific examples of features of size include: A hole diameter (a cylindrical surface) Plate thickness (two opposed parallel surfaces)
What does MMC mean on a datum?
Maximum Material Condition
Maximum Material Condition (MMC) is the size of a feature of size for which the part contains the maximum amount of material. For an internal feature of size, the MMC size is the smallest allowable size. For an external feature of size, the MMC size is the largest allowable size.
What is F modifier GD?
“F” stands for “free state.” This symbol indicates a deformation beyond size tolerance or geometric tolerance under a free state.
What is the S modifier in GD?
Feature tolerance compartment A diameter symbol (⌀) signifies a diametric zone (cylindrical tolerance zone). To specify a spherical zone, the symbol is the letter ‘S’ followed by the diameter symbol (⌀). In the absence of a symbol, we assume a total wide zone.
What is bonus tolerancing?
In GD, bonus tolerance is a modification of a GD tolerance that under certain conditions increases the tolerance, hence the term “bonus”. More specifically, when the maximum material condition (MMC) symbol is used to modify a GD tolerance, bonus tolerance becomes available.
What is CF on a drawing?
Add ability to add Continuous Feature (CF) symbol in drawings introduced in the 2009 Y14. 5 standard. Eric_Wong. October 2020 in Product Feedback. The symbol is incredibly useful when designing shafts, and allows for drawings to convey information that could not be previously communicated without a hefty note …
Does RFS have bonus tolerance?
RFS eliminates any potential Bonus Tolerance, allowing GD tolerances to be more tightly controlled.
What does GD stand for?
General Dynamics Corporation (GD) is an American aerospace and defense multinational corporation formed by mergers and divestitures.
What does General Dynamics do?
General Dynamics is a global aerospace and defense company. Our broad portfolio of products and services includes business aviation; combat vehicles, weapons systems and munitions; IT and C4ISR solutions; and shipbuilding and ship repair.
What happened to GDGD?
GD’s exit from the aviation world was short-lived, and in 1999 the company acquired Gulfstream Aerospace. The Pomona operation was closed shortly after its sale to Hughes Aircraft.
What happened to General Dynamics Land systems (GDLS)?
General Dynamics Land Systems (GDLS) was hurt by the cancellation of the US Army’s Future Combat Systems program and the loss in the Joint Light Tactical Vehicle MRAP replacement competition.